[www-releases] r372328 - Check in 9.0.0 source and docs
Hans Wennborg via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 19 07:32:55 PDT 2019
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/jquery.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/jquery.js?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/jquery.js (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/jquery.js Thu Sep 19 07:32:46 2019
@@ -0,0 +1,10365 @@
+/*!
+ * jQuery JavaScript Library v3.3.1-dfsg
+ * https://jquery.com/
+ *
+ * Includes Sizzle.js
+ * https://sizzlejs.com/
+ *
+ * Copyright JS Foundation and other contributors
+ * Released under the MIT license
+ * https://jquery.org/license
+ *
+ * Date: 2019-04-19T06:52Z
+ */
+( function( global, factory ) {
+
+ "use strict";
+
+ if ( typeof module === "object" && typeof module.exports === "object" ) {
+
+ // For CommonJS and CommonJS-like environments where a proper `window`
+ // is present, execute the factory and get jQuery.
+ // For environments that do not have a `window` with a `document`
+ // (such as Node.js), expose a factory as module.exports.
+ // This accentuates the need for the creation of a real `window`.
+ // e.g. var jQuery = require("jquery")(window);
+ // See ticket #14549 for more info.
+ module.exports = global.document ?
+ factory( global, true ) :
+ function( w ) {
+ if ( !w.document ) {
+ throw new Error( "jQuery requires a window with a document" );
+ }
+ return factory( w );
+ };
+ } else {
+ factory( global );
+ }
+
+// Pass this if window is not defined yet
+} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
+
+// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
+// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
+// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
+// enough that all such attempts are guarded in a try block.
+
+
+var arr = [];
+
+var document = window.document;
+
+var getProto = Object.getPrototypeOf;
+
+var slice = arr.slice;
+
+var concat = arr.concat;
+
+var push = arr.push;
+
+var indexOf = arr.indexOf;
+
+var class2type = {};
+
+var toString = class2type.toString;
+
+var hasOwn = class2type.hasOwnProperty;
+
+var fnToString = hasOwn.toString;
+
+var ObjectFunctionString = fnToString.call( Object );
+
+var support = {};
+
+var isFunction = function isFunction( obj ) {
+
+ // Support: Chrome <=57, Firefox <=52
+ // In some browsers, typeof returns "function" for HTML <object> elements
+ // (i.e., `typeof document.createElement( "object" ) === "function"`).
+ // We don't want to classify *any* DOM node as a function.
+ return typeof obj === "function" && typeof obj.nodeType !== "number";
+ };
+
+
+var isWindow = function isWindow( obj ) {
+ return obj != null && obj === obj.window;
+ };
+
+
+
+
+ var preservedScriptAttributes = {
+ type: true,
+ src: true,
+ noModule: true
+ };
+
+ function DOMEval( code, doc, node ) {
+ doc = doc || document;
+
+ var i,
+ script = doc.createElement( "script" );
+
+ script.text = code;
+ if ( node ) {
+ for ( i in preservedScriptAttributes ) {
+ if ( node[ i ] ) {
+ script[ i ] = node[ i ];
+ }
+ }
+ }
+ doc.head.appendChild( script ).parentNode.removeChild( script );
+ }
+
+
+function toType( obj ) {
+ if ( obj == null ) {
+ return obj + "";
+ }
+
+ // Support: Android <=2.3 only (functionish RegExp)
+ return typeof obj === "object" || typeof obj === "function" ?
+ class2type[ toString.call( obj ) ] || "object" :
+ typeof obj;
+}
+/* global Symbol */
+// Defining this global in .eslintrc.json would create a danger of using the global
+// unguarded in another place, it seems safer to define global only for this module
+
+
+
+var
+ version = "3.3.1",
+
+ // Define a local copy of jQuery
+ jQuery = function( selector, context ) {
+
+ // The jQuery object is actually just the init constructor 'enhanced'
+ // Need init if jQuery is called (just allow error to be thrown if not included)
+ return new jQuery.fn.init( selector, context );
+ },
+
+ // Support: Android <=4.0 only
+ // Make sure we trim BOM and NBSP
+ rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
+
+jQuery.fn = jQuery.prototype = {
+
+ // The current version of jQuery being used
+ jquery: version,
+
+ constructor: jQuery,
+
+ // The default length of a jQuery object is 0
+ length: 0,
+
+ toArray: function() {
+ return slice.call( this );
+ },
+
+ // Get the Nth element in the matched element set OR
+ // Get the whole matched element set as a clean array
+ get: function( num ) {
+
+ // Return all the elements in a clean array
+ if ( num == null ) {
+ return slice.call( this );
+ }
+
+ // Return just the one element from the set
+ return num < 0 ? this[ num + this.length ] : this[ num ];
+ },
+
+ // Take an array of elements and push it onto the stack
+ // (returning the new matched element set)
+ pushStack: function( elems ) {
+
+ // Build a new jQuery matched element set
+ var ret = jQuery.merge( this.constructor(), elems );
+
+ // Add the old object onto the stack (as a reference)
+ ret.prevObject = this;
+
+ // Return the newly-formed element set
+ return ret;
+ },
+
+ // Execute a callback for every element in the matched set.
+ each: function( callback ) {
+ return jQuery.each( this, callback );
+ },
+
+ map: function( callback ) {
+ return this.pushStack( jQuery.map( this, function( elem, i ) {
+ return callback.call( elem, i, elem );
+ } ) );
+ },
+
+ slice: function() {
+ return this.pushStack( slice.apply( this, arguments ) );
+ },
+
+ first: function() {
+ return this.eq( 0 );
+ },
+
+ last: function() {
+ return this.eq( -1 );
+ },
+
+ eq: function( i ) {
+ var len = this.length,
+ j = +i + ( i < 0 ? len : 0 );
+ return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
+ },
+
+ end: function() {
+ return this.prevObject || this.constructor();
+ },
+
+ // For internal use only.
+ // Behaves like an Array's method, not like a jQuery method.
+ push: push,
+ sort: arr.sort,
+ splice: arr.splice
+};
+
+jQuery.extend = jQuery.fn.extend = function() {
+ var options, name, src, copy, copyIsArray, clone,
+ target = arguments[ 0 ] || {},
+ i = 1,
+ length = arguments.length,
+ deep = false;
+
+ // Handle a deep copy situation
+ if ( typeof target === "boolean" ) {
+ deep = target;
+
+ // Skip the boolean and the target
+ target = arguments[ i ] || {};
+ i++;
+ }
+
+ // Handle case when target is a string or something (possible in deep copy)
+ if ( typeof target !== "object" && !isFunction( target ) ) {
+ target = {};
+ }
+
+ // Extend jQuery itself if only one argument is passed
+ if ( i === length ) {
+ target = this;
+ i--;
+ }
+
+ for ( ; i < length; i++ ) {
+
+ // Only deal with non-null/undefined values
+ if ( ( options = arguments[ i ] ) != null ) {
+
+ // Extend the base object
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
+ // Prevent Object.prototype pollution
+ // Prevent never-ending loop
+ if ( name === "__proto__" || target === copy ) {
+ continue;
+ }
+
+ // Recurse if we're merging plain objects or arrays
+ if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
+ ( copyIsArray = Array.isArray( copy ) ) ) ) {
+
+ if ( copyIsArray ) {
+ copyIsArray = false;
+ clone = src && Array.isArray( src ) ? src : [];
+
+ } else {
+ clone = src && jQuery.isPlainObject( src ) ? src : {};
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = jQuery.extend( deep, clone, copy );
+
+ // Don't bring in undefined values
+ } else if ( copy !== undefined ) {
+ target[ name ] = copy;
+ }
+ }
+ }
+ }
+
+ // Return the modified object
+ return target;
+};
+
+jQuery.extend( {
+
+ // Unique for each copy of jQuery on the page
+ expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
+
+ // Assume jQuery is ready without the ready module
+ isReady: true,
+
+ error: function( msg ) {
+ throw new Error( msg );
+ },
+
+ noop: function() {},
+
+ isPlainObject: function( obj ) {
+ var proto, Ctor;
+
+ // Detect obvious negatives
+ // Use toString instead of jQuery.type to catch host objects
+ if ( !obj || toString.call( obj ) !== "[object Object]" ) {
+ return false;
+ }
+
+ proto = getProto( obj );
+
+ // Objects with no prototype (e.g., `Object.create( null )`) are plain
+ if ( !proto ) {
+ return true;
+ }
+
+ // Objects with prototype are plain iff they were constructed by a global Object function
+ Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
+ return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
+ },
+
+ isEmptyObject: function( obj ) {
+
+ /* eslint-disable no-unused-vars */
+ // See https://github.com/eslint/eslint/issues/6125
+ var name;
+
+ for ( name in obj ) {
+ return false;
+ }
+ return true;
+ },
+
+ // Evaluates a script in a global context
+ globalEval: function( code ) {
+ DOMEval( code );
+ },
+
+ each: function( obj, callback ) {
+ var length, i = 0;
+
+ if ( isArrayLike( obj ) ) {
+ length = obj.length;
+ for ( ; i < length; i++ ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ } else {
+ for ( i in obj ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ }
+
+ return obj;
+ },
+
+ // Support: Android <=4.0 only
+ trim: function( text ) {
+ return text == null ?
+ "" :
+ ( text + "" ).replace( rtrim, "" );
+ },
+
+ // results is for internal usage only
+ makeArray: function( arr, results ) {
+ var ret = results || [];
+
+ if ( arr != null ) {
+ if ( isArrayLike( Object( arr ) ) ) {
+ jQuery.merge( ret,
+ typeof arr === "string" ?
+ [ arr ] : arr
+ );
+ } else {
+ push.call( ret, arr );
+ }
+ }
+
+ return ret;
+ },
+
+ inArray: function( elem, arr, i ) {
+ return arr == null ? -1 : indexOf.call( arr, elem, i );
+ },
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ merge: function( first, second ) {
+ var len = +second.length,
+ j = 0,
+ i = first.length;
+
+ for ( ; j < len; j++ ) {
+ first[ i++ ] = second[ j ];
+ }
+
+ first.length = i;
+
+ return first;
+ },
+
+ grep: function( elems, callback, invert ) {
+ var callbackInverse,
+ matches = [],
+ i = 0,
+ length = elems.length,
+ callbackExpect = !invert;
+
+ // Go through the array, only saving the items
+ // that pass the validator function
+ for ( ; i < length; i++ ) {
+ callbackInverse = !callback( elems[ i ], i );
+ if ( callbackInverse !== callbackExpect ) {
+ matches.push( elems[ i ] );
+ }
+ }
+
+ return matches;
+ },
+
+ // arg is for internal usage only
+ map: function( elems, callback, arg ) {
+ var length, value,
+ i = 0,
+ ret = [];
+
+ // Go through the array, translating each of the items to their new values
+ if ( isArrayLike( elems ) ) {
+ length = elems.length;
+ for ( ; i < length; i++ ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+
+ // Go through every key on the object,
+ } else {
+ for ( i in elems ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+ }
+
+ // Flatten any nested arrays
+ return concat.apply( [], ret );
+ },
+
+ // A global GUID counter for objects
+ guid: 1,
+
+ // jQuery.support is not used in Core but other projects attach their
+ // properties to it so it needs to exist.
+ support: support
+} );
+
+if ( typeof Symbol === "function" ) {
+ jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
+}
+
+// Populate the class2type map
+jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
+function( i, name ) {
+ class2type[ "[object " + name + "]" ] = name.toLowerCase();
+} );
+
+function isArrayLike( obj ) {
+
+ // Support: real iOS 8.2 only (not reproducible in simulator)
+ // `in` check used to prevent JIT error (gh-2145)
+ // hasOwn isn't used here due to false negatives
+ // regarding Nodelist length in IE
+ var length = !!obj && "length" in obj && obj.length,
+ type = toType( obj );
+
+ if ( isFunction( obj ) || isWindow( obj ) ) {
+ return false;
+ }
+
+ return type === "array" || length === 0 ||
+ typeof length === "number" && length > 0 && ( length - 1 ) in obj;
+}
+var Sizzle =
+/*!
+ * Sizzle CSS Selector Engine v2.3.3
+ * https://sizzlejs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2016-08-08
+ */
+(function( window ) {
+
+var i,
+ support,
+ Expr,
+ getText,
+ isXML,
+ tokenize,
+ compile,
+ select,
+ outermostContext,
+ sortInput,
+ hasDuplicate,
+
+ // Local document vars
+ setDocument,
+ document,
+ docElem,
+ documentIsHTML,
+ rbuggyQSA,
+ rbuggyMatches,
+ matches,
+ contains,
+
+ // Instance-specific data
+ expando = "sizzle" + 1 * new Date(),
+ preferredDoc = window.document,
+ dirruns = 0,
+ done = 0,
+ classCache = createCache(),
+ tokenCache = createCache(),
+ compilerCache = createCache(),
+ sortOrder = function( a, b ) {
+ if ( a === b ) {
+ hasDuplicate = true;
+ }
+ return 0;
+ },
+
+ // Instance methods
+ hasOwn = ({}).hasOwnProperty,
+ arr = [],
+ pop = arr.pop,
+ push_native = arr.push,
+ push = arr.push,
+ slice = arr.slice,
+ // Use a stripped-down indexOf as it's faster than native
+ // https://jsperf.com/thor-indexof-vs-for/5
+ indexOf = function( list, elem ) {
+ var i = 0,
+ len = list.length;
+ for ( ; i < len; i++ ) {
+ if ( list[i] === elem ) {
+ return i;
+ }
+ }
+ return -1;
+ },
+
+ booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
+
+ // Regular expressions
+
+ // http://www.w3.org/TR/css3-selectors/#whitespace
+ whitespace = "[\\x20\\t\\r\\n\\f]",
+
+ // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+ identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
+
+ // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
+ attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
+ // Operator (capture 2)
+ "*([*^$|!~]?=)" + whitespace +
+ // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
+ "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
+ "*\\]",
+
+ pseudos = ":(" + identifier + ")(?:\\((" +
+ // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
+ // 1. quoted (capture 3; capture 4 or capture 5)
+ "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
+ // 2. simple (capture 6)
+ "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
+ // 3. anything else (capture 2)
+ ".*" +
+ ")\\)|)",
+
+ // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+ rwhitespace = new RegExp( whitespace + "+", "g" ),
+ rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+ rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+ rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
+
+ rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
+
+ rpseudo = new RegExp( pseudos ),
+ ridentifier = new RegExp( "^" + identifier + "$" ),
+
+ matchExpr = {
+ "ID": new RegExp( "^#(" + identifier + ")" ),
+ "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
+ "TAG": new RegExp( "^(" + identifier + "|[*])" ),
+ "ATTR": new RegExp( "^" + attributes ),
+ "PSEUDO": new RegExp( "^" + pseudos ),
+ "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+ "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+ "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+ "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+ // For use in libraries implementing .is()
+ // We use this for POS matching in `select`
+ "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+ whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+ },
+
+ rinputs = /^(?:input|select|textarea|button)$/i,
+ rheader = /^h\d$/i,
+
+ rnative = /^[^{]+\{\s*\[native \w/,
+
+ // Easily-parseable/retrievable ID or TAG or CLASS selectors
+ rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+ rsibling = /[+~]/,
+
+ // CSS escapes
+ // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+ runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
+ funescape = function( _, escaped, escapedWhitespace ) {
+ var high = "0x" + escaped - 0x10000;
+ // NaN means non-codepoint
+ // Support: Firefox<24
+ // Workaround erroneous numeric interpretation of +"0x"
+ return high !== high || escapedWhitespace ?
+ escaped :
+ high < 0 ?
+ // BMP codepoint
+ String.fromCharCode( high + 0x10000 ) :
+ // Supplemental Plane codepoint (surrogate pair)
+ String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+ },
+
+ // CSS string/identifier serialization
+ // https://drafts.csswg.org/cssom/#common-serializing-idioms
+ rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
+ fcssescape = function( ch, asCodePoint ) {
+ if ( asCodePoint ) {
+
+ // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
+ if ( ch === "\0" ) {
+ return "\uFFFD";
+ }
+
+ // Control characters and (dependent upon position) numbers get escaped as code points
+ return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
+ }
+
+ // Other potentially-special ASCII characters get backslash-escaped
+ return "\\" + ch;
+ },
+
+ // Used for iframes
+ // See setDocument()
+ // Removing the function wrapper causes a "Permission Denied"
+ // error in IE
+ unloadHandler = function() {
+ setDocument();
+ },
+
+ disabledAncestor = addCombinator(
+ function( elem ) {
+ return elem.disabled === true && ("form" in elem || "label" in elem);
+ },
+ { dir: "parentNode", next: "legend" }
+ );
+
+// Optimize for push.apply( _, NodeList )
+try {
+ push.apply(
+ (arr = slice.call( preferredDoc.childNodes )),
+ preferredDoc.childNodes
+ );
+ // Support: Android<4.0
+ // Detect silently failing push.apply
+ arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+ push = { apply: arr.length ?
+
+ // Leverage slice if possible
+ function( target, els ) {
+ push_native.apply( target, slice.call(els) );
+ } :
+
+ // Support: IE<9
+ // Otherwise append directly
+ function( target, els ) {
+ var j = target.length,
+ i = 0;
+ // Can't trust NodeList.length
+ while ( (target[j++] = els[i++]) ) {}
+ target.length = j - 1;
+ }
+ };
+}
+
+function Sizzle( selector, context, results, seed ) {
+ var m, i, elem, nid, match, groups, newSelector,
+ newContext = context && context.ownerDocument,
+
+ // nodeType defaults to 9, since context defaults to document
+ nodeType = context ? context.nodeType : 9;
+
+ results = results || [];
+
+ // Return early from calls with invalid selector or context
+ if ( typeof selector !== "string" || !selector ||
+ nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
+
+ return results;
+ }
+
+ // Try to shortcut find operations (as opposed to filters) in HTML documents
+ if ( !seed ) {
+
+ if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+ setDocument( context );
+ }
+ context = context || document;
+
+ if ( documentIsHTML ) {
+
+ // If the selector is sufficiently simple, try using a "get*By*" DOM method
+ // (excepting DocumentFragment context, where the methods don't exist)
+ if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
+
+ // ID selector
+ if ( (m = match[1]) ) {
+
+ // Document context
+ if ( nodeType === 9 ) {
+ if ( (elem = context.getElementById( m )) ) {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( elem.id === m ) {
+ results.push( elem );
+ return results;
+ }
+ } else {
+ return results;
+ }
+
+ // Element context
+ } else {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( newContext && (elem = newContext.getElementById( m )) &&
+ contains( context, elem ) &&
+ elem.id === m ) {
+
+ results.push( elem );
+ return results;
+ }
+ }
+
+ // Type selector
+ } else if ( match[2] ) {
+ push.apply( results, context.getElementsByTagName( selector ) );
+ return results;
+
+ // Class selector
+ } else if ( (m = match[3]) && support.getElementsByClassName &&
+ context.getElementsByClassName ) {
+
+ push.apply( results, context.getElementsByClassName( m ) );
+ return results;
+ }
+ }
+
+ // Take advantage of querySelectorAll
+ if ( support.qsa &&
+ !compilerCache[ selector + " " ] &&
+ (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
+
+ if ( nodeType !== 1 ) {
+ newContext = context;
+ newSelector = selector;
+
+ // qSA looks outside Element context, which is not what we want
+ // Thanks to Andrew Dupont for this workaround technique
+ // Support: IE <=8
+ // Exclude object elements
+ } else if ( context.nodeName.toLowerCase() !== "object" ) {
+
+ // Capture the context ID, setting it first if necessary
+ if ( (nid = context.getAttribute( "id" )) ) {
+ nid = nid.replace( rcssescape, fcssescape );
+ } else {
+ context.setAttribute( "id", (nid = expando) );
+ }
+
+ // Prefix every selector in the list
+ groups = tokenize( selector );
+ i = groups.length;
+ while ( i-- ) {
+ groups[i] = "#" + nid + " " + toSelector( groups[i] );
+ }
+ newSelector = groups.join( "," );
+
+ // Expand context for sibling selectors
+ newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
+ context;
+ }
+
+ if ( newSelector ) {
+ try {
+ push.apply( results,
+ newContext.querySelectorAll( newSelector )
+ );
+ return results;
+ } catch ( qsaError ) {
+ } finally {
+ if ( nid === expando ) {
+ context.removeAttribute( "id" );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // All others
+ return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {function(string, object)} Returns the Object data after storing it on itself with
+ * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ * deleting the oldest entry
+ */
+function createCache() {
+ var keys = [];
+
+ function cache( key, value ) {
+ // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+ if ( keys.push( key + " " ) > Expr.cacheLength ) {
+ // Only keep the most recent entries
+ delete cache[ keys.shift() ];
+ }
+ return (cache[ key + " " ] = value);
+ }
+ return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+ fn[ expando ] = true;
+ return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created element and returns a boolean result
+ */
+function assert( fn ) {
+ var el = document.createElement("fieldset");
+
+ try {
+ return !!fn( el );
+ } catch (e) {
+ return false;
+ } finally {
+ // Remove from its parent by default
+ if ( el.parentNode ) {
+ el.parentNode.removeChild( el );
+ }
+ // release memory in IE
+ el = null;
+ }
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+ var arr = attrs.split("|"),
+ i = arr.length;
+
+ while ( i-- ) {
+ Expr.attrHandle[ arr[i] ] = handler;
+ }
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+ var cur = b && a,
+ diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+ a.sourceIndex - b.sourceIndex;
+
+ // Use IE sourceIndex if available on both nodes
+ if ( diff ) {
+ return diff;
+ }
+
+ // Check if b follows a
+ if ( cur ) {
+ while ( (cur = cur.nextSibling) ) {
+ if ( cur === b ) {
+ return -1;
+ }
+ }
+ }
+
+ return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for :enabled/:disabled
+ * @param {Boolean} disabled true for :disabled; false for :enabled
+ */
+function createDisabledPseudo( disabled ) {
+
+ // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
+ return function( elem ) {
+
+ // Only certain elements can match :enabled or :disabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
+ if ( "form" in elem ) {
+
+ // Check for inherited disabledness on relevant non-disabled elements:
+ // * listed form-associated elements in a disabled fieldset
+ // https://html.spec.whatwg.org/multipage/forms.html#category-listed
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
+ // * option elements in a disabled optgroup
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
+ // All such elements have a "form" property.
+ if ( elem.parentNode && elem.disabled === false ) {
+
+ // Option elements defer to a parent optgroup if present
+ if ( "label" in elem ) {
+ if ( "label" in elem.parentNode ) {
+ return elem.parentNode.disabled === disabled;
+ } else {
+ return elem.disabled === disabled;
+ }
+ }
+
+ // Support: IE 6 - 11
+ // Use the isDisabled shortcut property to check for disabled fieldset ancestors
+ return elem.isDisabled === disabled ||
+
+ // Where there is no isDisabled, check manually
+ /* jshint -W018 */
+ elem.isDisabled !== !disabled &&
+ disabledAncestor( elem ) === disabled;
+ }
+
+ return elem.disabled === disabled;
+
+ // Try to winnow out elements that can't be disabled before trusting the disabled property.
+ // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
+ // even exist on them, let alone have a boolean value.
+ } else if ( "label" in elem ) {
+ return elem.disabled === disabled;
+ }
+
+ // Remaining elements are neither :enabled nor :disabled
+ return false;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+ return markFunction(function( argument ) {
+ argument = +argument;
+ return markFunction(function( seed, matches ) {
+ var j,
+ matchIndexes = fn( [], seed.length, argument ),
+ i = matchIndexes.length;
+
+ // Match elements found at the specified indexes
+ while ( i-- ) {
+ if ( seed[ (j = matchIndexes[i]) ] ) {
+ seed[j] = !(matches[j] = seed[j]);
+ }
+ }
+ });
+ });
+}
+
+/**
+ * Checks a node for validity as a Sizzle context
+ * @param {Element|Object=} context
+ * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
+ */
+function testContext( context ) {
+ return context && typeof context.getElementsByTagName !== "undefined" && context;
+}
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Detects XML nodes
+ * @param {Element|Object} elem An element or a document
+ * @returns {Boolean} True iff elem is a non-HTML XML node
+ */
+isXML = Sizzle.isXML = function( elem ) {
+ // documentElement is verified for cases where it doesn't yet exist
+ // (such as loading iframes in IE - #4833)
+ var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+ return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+ var hasCompare, subWindow,
+ doc = node ? node.ownerDocument || node : preferredDoc;
+
+ // Return early if doc is invalid or already selected
+ if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+ return document;
+ }
+
+ // Update global variables
+ document = doc;
+ docElem = document.documentElement;
+ documentIsHTML = !isXML( document );
+
+ // Support: IE 9-11, Edge
+ // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
+ if ( preferredDoc !== document &&
+ (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
+
+ // Support: IE 11, Edge
+ if ( subWindow.addEventListener ) {
+ subWindow.addEventListener( "unload", unloadHandler, false );
+
+ // Support: IE 9 - 10 only
+ } else if ( subWindow.attachEvent ) {
+ subWindow.attachEvent( "onunload", unloadHandler );
+ }
+ }
+
+ /* Attributes
+ ---------------------------------------------------------------------- */
+
+ // Support: IE<8
+ // Verify that getAttribute really returns attributes and not properties
+ // (excepting IE8 booleans)
+ support.attributes = assert(function( el ) {
+ el.className = "i";
+ return !el.getAttribute("className");
+ });
+
+ /* getElement(s)By*
+ ---------------------------------------------------------------------- */
+
+ // Check if getElementsByTagName("*") returns only elements
+ support.getElementsByTagName = assert(function( el ) {
+ el.appendChild( document.createComment("") );
+ return !el.getElementsByTagName("*").length;
+ });
+
+ // Support: IE<9
+ support.getElementsByClassName = rnative.test( document.getElementsByClassName );
+
+ // Support: IE<10
+ // Check if getElementById returns elements by name
+ // The broken getElementById methods don't pick up programmatically-set names,
+ // so use a roundabout getElementsByName test
+ support.getById = assert(function( el ) {
+ docElem.appendChild( el ).id = expando;
+ return !document.getElementsByName || !document.getElementsByName( expando ).length;
+ });
+
+ // ID filter and find
+ if ( support.getById ) {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ return elem.getAttribute("id") === attrId;
+ };
+ };
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var elem = context.getElementById( id );
+ return elem ? [ elem ] : [];
+ }
+ };
+ } else {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ var node = typeof elem.getAttributeNode !== "undefined" &&
+ elem.getAttributeNode("id");
+ return node && node.value === attrId;
+ };
+ };
+
+ // Support: IE 6 - 7 only
+ // getElementById is not reliable as a find shortcut
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var node, i, elems,
+ elem = context.getElementById( id );
+
+ if ( elem ) {
+
+ // Verify the id attribute
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+
+ // Fall back on getElementsByName
+ elems = context.getElementsByName( id );
+ i = 0;
+ while ( (elem = elems[i++]) ) {
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+ }
+ }
+
+ return [];
+ }
+ };
+ }
+
+ // Tag
+ Expr.find["TAG"] = support.getElementsByTagName ?
+ function( tag, context ) {
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ return context.getElementsByTagName( tag );
+
+ // DocumentFragment nodes don't have gEBTN
+ } else if ( support.qsa ) {
+ return context.querySelectorAll( tag );
+ }
+ } :
+
+ function( tag, context ) {
+ var elem,
+ tmp = [],
+ i = 0,
+ // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
+ results = context.getElementsByTagName( tag );
+
+ // Filter out possible comments
+ if ( tag === "*" ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem.nodeType === 1 ) {
+ tmp.push( elem );
+ }
+ }
+
+ return tmp;
+ }
+ return results;
+ };
+
+ // Class
+ Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
+ if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
+ return context.getElementsByClassName( className );
+ }
+ };
+
+ /* QSA/matchesSelector
+ ---------------------------------------------------------------------- */
+
+ // QSA and matchesSelector support
+
+ // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+ rbuggyMatches = [];
+
+ // qSa(:focus) reports false when true (Chrome 21)
+ // We allow this because of a bug in IE8/9 that throws an error
+ // whenever `document.activeElement` is accessed on an iframe
+ // So, we allow :focus to pass through QSA all the time to avoid the IE error
+ // See https://bugs.jquery.com/ticket/13378
+ rbuggyQSA = [];
+
+ if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
+ // Build QSA regex
+ // Regex strategy adopted from Diego Perini
+ assert(function( el ) {
+ // Select is set to empty string on purpose
+ // This is to test IE's treatment of not explicitly
+ // setting a boolean content attribute,
+ // since its presence should be enough
+ // https://bugs.jquery.com/ticket/12359
+ docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
+ "<select id='" + expando + "-\r\\' msallowcapture=''>" +
+ "<option selected=''></option></select>";
+
+ // Support: IE8, Opera 11-12.16
+ // Nothing should be selected when empty strings follow ^= or $= or *=
+ // The test attribute must be unknown in Opera but "safe" for WinRT
+ // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
+ if ( el.querySelectorAll("[msallowcapture^='']").length ) {
+ rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+ }
+
+ // Support: IE8
+ // Boolean attributes and "value" are not treated correctly
+ if ( !el.querySelectorAll("[selected]").length ) {
+ rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+ }
+
+ // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
+ if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
+ rbuggyQSA.push("~=");
+ }
+
+ // Webkit/Opera - :checked should return selected option elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ // IE8 throws error here and will not see later tests
+ if ( !el.querySelectorAll(":checked").length ) {
+ rbuggyQSA.push(":checked");
+ }
+
+ // Support: Safari 8+, iOS 8+
+ // https://bugs.webkit.org/show_bug.cgi?id=136851
+ // In-page `selector#id sibling-combinator selector` fails
+ if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
+ rbuggyQSA.push(".#.+[+~]");
+ }
+ });
+
+ assert(function( el ) {
+ el.innerHTML = "<a href='' disabled='disabled'></a>" +
+ "<select disabled='disabled'><option/></select>";
+
+ // Support: Windows 8 Native Apps
+ // The type and name attributes are restricted during .innerHTML assignment
+ var input = document.createElement("input");
+ input.setAttribute( "type", "hidden" );
+ el.appendChild( input ).setAttribute( "name", "D" );
+
+ // Support: IE8
+ // Enforce case-sensitivity of name attribute
+ if ( el.querySelectorAll("[name=d]").length ) {
+ rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
+ }
+
+ // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+ // IE8 throws error here and will not see later tests
+ if ( el.querySelectorAll(":enabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Support: IE9-11+
+ // IE's :disabled selector does not pick up the children of disabled fieldsets
+ docElem.appendChild( el ).disabled = true;
+ if ( el.querySelectorAll(":disabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Opera 10-11 does not throw on post-comma invalid pseudos
+ el.querySelectorAll("*,:x");
+ rbuggyQSA.push(",.*:");
+ });
+ }
+
+ if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
+ docElem.webkitMatchesSelector ||
+ docElem.mozMatchesSelector ||
+ docElem.oMatchesSelector ||
+ docElem.msMatchesSelector) )) ) {
+
+ assert(function( el ) {
+ // Check to see if it's possible to do matchesSelector
+ // on a disconnected node (IE 9)
+ support.disconnectedMatch = matches.call( el, "*" );
+
+ // This should fail with an exception
+ // Gecko does not error, returns false instead
+ matches.call( el, "[s!='']:x" );
+ rbuggyMatches.push( "!=", pseudos );
+ });
+ }
+
+ rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
+ rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
+
+ /* Contains
+ ---------------------------------------------------------------------- */
+ hasCompare = rnative.test( docElem.compareDocumentPosition );
+
+ // Element contains another
+ // Purposefully self-exclusive
+ // As in, an element does not contain itself
+ contains = hasCompare || rnative.test( docElem.contains ) ?
+ function( a, b ) {
+ var adown = a.nodeType === 9 ? a.documentElement : a,
+ bup = b && b.parentNode;
+ return a === bup || !!( bup && bup.nodeType === 1 && (
+ adown.contains ?
+ adown.contains( bup ) :
+ a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+ ));
+ } :
+ function( a, b ) {
+ if ( b ) {
+ while ( (b = b.parentNode) ) {
+ if ( b === a ) {
+ return true;
+ }
+ }
+ }
+ return false;
+ };
+
+ /* Sorting
+ ---------------------------------------------------------------------- */
+
+ // Document order sorting
+ sortOrder = hasCompare ?
+ function( a, b ) {
+
+ // Flag for duplicate removal
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ // Sort on method existence if only one input has compareDocumentPosition
+ var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
+ if ( compare ) {
+ return compare;
+ }
+
+ // Calculate position if both inputs belong to the same document
+ compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
+ a.compareDocumentPosition( b ) :
+
+ // Otherwise we know they are disconnected
+ 1;
+
+ // Disconnected nodes
+ if ( compare & 1 ||
+ (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
+
+ // Choose the first element that is related to our preferred document
+ if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
+ return -1;
+ }
+ if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
+ return 1;
+ }
+
+ // Maintain original order
+ return sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+ }
+
+ return compare & 4 ? -1 : 1;
+ } :
+ function( a, b ) {
+ // Exit early if the nodes are identical
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ var cur,
+ i = 0,
+ aup = a.parentNode,
+ bup = b.parentNode,
+ ap = [ a ],
+ bp = [ b ];
+
+ // Parentless nodes are either documents or disconnected
+ if ( !aup || !bup ) {
+ return a === document ? -1 :
+ b === document ? 1 :
+ aup ? -1 :
+ bup ? 1 :
+ sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+
+ // If the nodes are siblings, we can do a quick check
+ } else if ( aup === bup ) {
+ return siblingCheck( a, b );
+ }
+
+ // Otherwise we need full lists of their ancestors for comparison
+ cur = a;
+ while ( (cur = cur.parentNode) ) {
+ ap.unshift( cur );
+ }
+ cur = b;
+ while ( (cur = cur.parentNode) ) {
+ bp.unshift( cur );
+ }
+
+ // Walk down the tree looking for a discrepancy
+ while ( ap[i] === bp[i] ) {
+ i++;
+ }
+
+ return i ?
+ // Do a sibling check if the nodes have a common ancestor
+ siblingCheck( ap[i], bp[i] ) :
+
+ // Otherwise nodes in our document sort first
+ ap[i] === preferredDoc ? -1 :
+ bp[i] === preferredDoc ? 1 :
+ 0;
+ };
+
+ return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+ return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ // Make sure that attribute selectors are quoted
+ expr = expr.replace( rattributeQuotes, "='$1']" );
+
+ if ( support.matchesSelector && documentIsHTML &&
+ !compilerCache[ expr + " " ] &&
+ ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+ ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
+
+ try {
+ var ret = matches.call( elem, expr );
+
+ // IE 9's matchesSelector returns false on disconnected nodes
+ if ( ret || support.disconnectedMatch ||
+ // As well, disconnected nodes are said to be in a document
+ // fragment in IE 9
+ elem.document && elem.document.nodeType !== 11 ) {
+ return ret;
+ }
+ } catch (e) {}
+ }
+
+ return Sizzle( expr, document, null, [ elem ] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+ // Set document vars if needed
+ if ( ( context.ownerDocument || context ) !== document ) {
+ setDocument( context );
+ }
+ return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ var fn = Expr.attrHandle[ name.toLowerCase() ],
+ // Don't get fooled by Object.prototype properties (jQuery #13807)
+ val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+ fn( elem, name, !documentIsHTML ) :
+ undefined;
+
+ return val !== undefined ?
+ val :
+ support.attributes || !documentIsHTML ?
+ elem.getAttribute( name ) :
+ (val = elem.getAttributeNode(name)) && val.specified ?
+ val.value :
+ null;
+};
+
+Sizzle.escape = function( sel ) {
+ return (sel + "").replace( rcssescape, fcssescape );
+};
+
+Sizzle.error = function( msg ) {
+ throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+ var elem,
+ duplicates = [],
+ j = 0,
+ i = 0;
+
+ // Unless we *know* we can detect duplicates, assume their presence
+ hasDuplicate = !support.detectDuplicates;
+ sortInput = !support.sortStable && results.slice( 0 );
+ results.sort( sortOrder );
+
+ if ( hasDuplicate ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem === results[ i ] ) {
+ j = duplicates.push( i );
+ }
+ }
+ while ( j-- ) {
+ results.splice( duplicates[ j ], 1 );
+ }
+ }
+
+ // Clear input after sorting to release objects
+ // See https://github.com/jquery/sizzle/pull/225
+ sortInput = null;
+
+ return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+ var node,
+ ret = "",
+ i = 0,
+ nodeType = elem.nodeType;
+
+ if ( !nodeType ) {
+ // If no nodeType, this is expected to be an array
+ while ( (node = elem[i++]) ) {
+ // Do not traverse comment nodes
+ ret += getText( node );
+ }
+ } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+ // Use textContent for elements
+ // innerText usage removed for consistency of new lines (jQuery #11153)
+ if ( typeof elem.textContent === "string" ) {
+ return elem.textContent;
+ } else {
+ // Traverse its children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ ret += getText( elem );
+ }
+ }
+ } else if ( nodeType === 3 || nodeType === 4 ) {
+ return elem.nodeValue;
+ }
+ // Do not include comment or processing instruction nodes
+
+ return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+ // Can be adjusted by the user
+ cacheLength: 50,
+
+ createPseudo: markFunction,
+
+ match: matchExpr,
+
+ attrHandle: {},
+
+ find: {},
+
+ relative: {
+ ">": { dir: "parentNode", first: true },
+ " ": { dir: "parentNode" },
+ "+": { dir: "previousSibling", first: true },
+ "~": { dir: "previousSibling" }
+ },
+
+ preFilter: {
+ "ATTR": function( match ) {
+ match[1] = match[1].replace( runescape, funescape );
+
+ // Move the given value to match[3] whether quoted or unquoted
+ match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
+
+ if ( match[2] === "~=" ) {
+ match[3] = " " + match[3] + " ";
+ }
+
+ return match.slice( 0, 4 );
+ },
+
+ "CHILD": function( match ) {
+ /* matches from matchExpr["CHILD"]
+ 1 type (only|nth|...)
+ 2 what (child|of-type)
+ 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+ 4 xn-component of xn+y argument ([+-]?\d*n|)
+ 5 sign of xn-component
+ 6 x of xn-component
+ 7 sign of y-component
+ 8 y of y-component
+ */
+ match[1] = match[1].toLowerCase();
+
+ if ( match[1].slice( 0, 3 ) === "nth" ) {
+ // nth-* requires argument
+ if ( !match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ // numeric x and y parameters for Expr.filter.CHILD
+ // remember that false/true cast respectively to 0/1
+ match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+ match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+ // other types prohibit arguments
+ } else if ( match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ return match;
+ },
+
+ "PSEUDO": function( match ) {
+ var excess,
+ unquoted = !match[6] && match[2];
+
+ if ( matchExpr["CHILD"].test( match[0] ) ) {
+ return null;
+ }
+
+ // Accept quoted arguments as-is
+ if ( match[3] ) {
+ match[2] = match[4] || match[5] || "";
+
+ // Strip excess characters from unquoted arguments
+ } else if ( unquoted && rpseudo.test( unquoted ) &&
+ // Get excess from tokenize (recursively)
+ (excess = tokenize( unquoted, true )) &&
+ // advance to the next closing parenthesis
+ (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+ // excess is a negative index
+ match[0] = match[0].slice( 0, excess );
+ match[2] = unquoted.slice( 0, excess );
+ }
+
+ // Return only captures needed by the pseudo filter method (type and argument)
+ return match.slice( 0, 3 );
+ }
+ },
+
+ filter: {
+
+ "TAG": function( nodeNameSelector ) {
+ var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+ return nodeNameSelector === "*" ?
+ function() { return true; } :
+ function( elem ) {
+ return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+ };
+ },
+
+ "CLASS": function( className ) {
+ var pattern = classCache[ className + " " ];
+
+ return pattern ||
+ (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+ classCache( className, function( elem ) {
+ return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
+ });
+ },
+
+ "ATTR": function( name, operator, check ) {
+ return function( elem ) {
+ var result = Sizzle.attr( elem, name );
+
+ if ( result == null ) {
+ return operator === "!=";
+ }
+ if ( !operator ) {
+ return true;
+ }
+
+ result += "";
+
+ return operator === "=" ? result === check :
+ operator === "!=" ? result !== check :
+ operator === "^=" ? check && result.indexOf( check ) === 0 :
+ operator === "*=" ? check && result.indexOf( check ) > -1 :
+ operator === "$=" ? check && result.slice( -check.length ) === check :
+ operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
+ operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+ false;
+ };
+ },
+
+ "CHILD": function( type, what, argument, first, last ) {
+ var simple = type.slice( 0, 3 ) !== "nth",
+ forward = type.slice( -4 ) !== "last",
+ ofType = what === "of-type";
+
+ return first === 1 && last === 0 ?
+
+ // Shortcut for :nth-*(n)
+ function( elem ) {
+ return !!elem.parentNode;
+ } :
+
+ function( elem, context, xml ) {
+ var cache, uniqueCache, outerCache, node, nodeIndex, start,
+ dir = simple !== forward ? "nextSibling" : "previousSibling",
+ parent = elem.parentNode,
+ name = ofType && elem.nodeName.toLowerCase(),
+ useCache = !xml && !ofType,
+ diff = false;
+
+ if ( parent ) {
+
+ // :(first|last|only)-(child|of-type)
+ if ( simple ) {
+ while ( dir ) {
+ node = elem;
+ while ( (node = node[ dir ]) ) {
+ if ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) {
+
+ return false;
+ }
+ }
+ // Reverse direction for :only-* (if we haven't yet done so)
+ start = dir = type === "only" && !start && "nextSibling";
+ }
+ return true;
+ }
+
+ start = [ forward ? parent.firstChild : parent.lastChild ];
+
+ // non-xml :nth-child(...) stores cache data on `parent`
+ if ( forward && useCache ) {
+
+ // Seek `elem` from a previously-cached index
+
+ // ...in a gzip-friendly way
+ node = parent;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex && cache[ 2 ];
+ node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+ // Fallback to seeking `elem` from the start
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ // When found, cache indexes on `parent` and break
+ if ( node.nodeType === 1 && ++diff && node === elem ) {
+ uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
+ break;
+ }
+ }
+
+ } else {
+ // Use previously-cached element index if available
+ if ( useCache ) {
+ // ...in a gzip-friendly way
+ node = elem;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex;
+ }
+
+ // xml :nth-child(...)
+ // or :nth-last-child(...) or :nth(-last)?-of-type(...)
+ if ( diff === false ) {
+ // Use the same loop as above to seek `elem` from the start
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ if ( ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) &&
+ ++diff ) {
+
+ // Cache the index of each encountered element
+ if ( useCache ) {
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ uniqueCache[ type ] = [ dirruns, diff ];
+ }
+
+ if ( node === elem ) {
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Incorporate the offset, then check against cycle size
+ diff -= last;
+ return diff === first || ( diff % first === 0 && diff / first >= 0 );
+ }
+ };
+ },
+
+ "PSEUDO": function( pseudo, argument ) {
+ // pseudo-class names are case-insensitive
+ // http://www.w3.org/TR/selectors/#pseudo-classes
+ // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+ // Remember that setFilters inherits from pseudos
+ var args,
+ fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+ Sizzle.error( "unsupported pseudo: " + pseudo );
+
+ // The user may use createPseudo to indicate that
+ // arguments are needed to create the filter function
+ // just as Sizzle does
+ if ( fn[ expando ] ) {
+ return fn( argument );
+ }
+
+ // But maintain support for old signatures
+ if ( fn.length > 1 ) {
+ args = [ pseudo, pseudo, "", argument ];
+ return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+ markFunction(function( seed, matches ) {
+ var idx,
+ matched = fn( seed, argument ),
+ i = matched.length;
+ while ( i-- ) {
+ idx = indexOf( seed, matched[i] );
+ seed[ idx ] = !( matches[ idx ] = matched[i] );
+ }
+ }) :
+ function( elem ) {
+ return fn( elem, 0, args );
+ };
+ }
+
+ return fn;
+ }
+ },
+
+ pseudos: {
+ // Potentially complex pseudos
+ "not": markFunction(function( selector ) {
+ // Trim the selector passed to compile
+ // to avoid treating leading and trailing
+ // spaces as combinators
+ var input = [],
+ results = [],
+ matcher = compile( selector.replace( rtrim, "$1" ) );
+
+ return matcher[ expando ] ?
+ markFunction(function( seed, matches, context, xml ) {
+ var elem,
+ unmatched = matcher( seed, null, xml, [] ),
+ i = seed.length;
+
+ // Match elements unmatched by `matcher`
+ while ( i-- ) {
+ if ( (elem = unmatched[i]) ) {
+ seed[i] = !(matches[i] = elem);
+ }
+ }
+ }) :
+ function( elem, context, xml ) {
+ input[0] = elem;
+ matcher( input, null, xml, results );
+ // Don't keep the element (issue #299)
+ input[0] = null;
+ return !results.pop();
+ };
+ }),
+
+ "has": markFunction(function( selector ) {
+ return function( elem ) {
+ return Sizzle( selector, elem ).length > 0;
+ };
+ }),
+
+ "contains": markFunction(function( text ) {
+ text = text.replace( runescape, funescape );
+ return function( elem ) {
+ return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+ };
+ }),
+
+ // "Whether an element is represented by a :lang() selector
+ // is based solely on the element's language value
+ // being equal to the identifier C,
+ // or beginning with the identifier C immediately followed by "-".
+ // The matching of C against the element's language value is performed case-insensitively.
+ // The identifier C does not have to be a valid language name."
+ // http://www.w3.org/TR/selectors/#lang-pseudo
+ "lang": markFunction( function( lang ) {
+ // lang value must be a valid identifier
+ if ( !ridentifier.test(lang || "") ) {
+ Sizzle.error( "unsupported lang: " + lang );
+ }
+ lang = lang.replace( runescape, funescape ).toLowerCase();
+ return function( elem ) {
+ var elemLang;
+ do {
+ if ( (elemLang = documentIsHTML ?
+ elem.lang :
+ elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
+
+ elemLang = elemLang.toLowerCase();
+ return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+ }
+ } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+ return false;
+ };
+ }),
+
+ // Miscellaneous
+ "target": function( elem ) {
+ var hash = window.location && window.location.hash;
+ return hash && hash.slice( 1 ) === elem.id;
+ },
+
+ "root": function( elem ) {
+ return elem === docElem;
+ },
+
+ "focus": function( elem ) {
+ return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+ },
+
+ // Boolean properties
+ "enabled": createDisabledPseudo( false ),
+ "disabled": createDisabledPseudo( true ),
+
+ "checked": function( elem ) {
+ // In CSS3, :checked should return both checked and selected elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ var nodeName = elem.nodeName.toLowerCase();
+ return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+ },
+
+ "selected": function( elem ) {
+ // Accessing this property makes selected-by-default
+ // options in Safari work properly
+ if ( elem.parentNode ) {
+ elem.parentNode.selectedIndex;
+ }
+
+ return elem.selected === true;
+ },
+
+ // Contents
+ "empty": function( elem ) {
+ // http://www.w3.org/TR/selectors/#empty-pseudo
+ // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
+ // but not by others (comment: 8; processing instruction: 7; etc.)
+ // nodeType < 6 works because attributes (2) do not appear as children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ if ( elem.nodeType < 6 ) {
+ return false;
+ }
+ }
+ return true;
+ },
+
+ "parent": function( elem ) {
+ return !Expr.pseudos["empty"]( elem );
+ },
+
+ // Element/input types
+ "header": function( elem ) {
+ return rheader.test( elem.nodeName );
+ },
+
+ "input": function( elem ) {
+ return rinputs.test( elem.nodeName );
+ },
+
+ "button": function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === "button" || name === "button";
+ },
+
+ "text": function( elem ) {
+ var attr;
+ return elem.nodeName.toLowerCase() === "input" &&
+ elem.type === "text" &&
+
+ // Support: IE<8
+ // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
+ ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
+ },
+
+ // Position-in-collection
+ "first": createPositionalPseudo(function() {
+ return [ 0 ];
+ }),
+
+ "last": createPositionalPseudo(function( matchIndexes, length ) {
+ return [ length - 1 ];
+ }),
+
+ "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ return [ argument < 0 ? argument + length : argument ];
+ }),
+
+ "even": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 0;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "odd": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 1;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; --i >= 0; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; ++i < length; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ })
+ }
+};
+
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+ Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+ Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
+ var matched, match, tokens, type,
+ soFar, groups, preFilters,
+ cached = tokenCache[ selector + " " ];
+
+ if ( cached ) {
+ return parseOnly ? 0 : cached.slice( 0 );
+ }
+
+ soFar = selector;
+ groups = [];
+ preFilters = Expr.preFilter;
+
+ while ( soFar ) {
+
+ // Comma and first run
+ if ( !matched || (match = rcomma.exec( soFar )) ) {
+ if ( match ) {
+ // Don't consume trailing commas as valid
+ soFar = soFar.slice( match[0].length ) || soFar;
+ }
+ groups.push( (tokens = []) );
+ }
+
+ matched = false;
+
+ // Combinators
+ if ( (match = rcombinators.exec( soFar )) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ // Cast descendant combinators to space
+ type: match[0].replace( rtrim, " " )
+ });
+ soFar = soFar.slice( matched.length );
+ }
+
+ // Filters
+ for ( type in Expr.filter ) {
+ if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+ (match = preFilters[ type ]( match ))) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ type: type,
+ matches: match
+ });
+ soFar = soFar.slice( matched.length );
+ }
+ }
+
+ if ( !matched ) {
+ break;
+ }
+ }
+
+ // Return the length of the invalid excess
+ // if we're just parsing
+ // Otherwise, throw an error or return tokens
+ return parseOnly ?
+ soFar.length :
+ soFar ?
+ Sizzle.error( selector ) :
+ // Cache the tokens
+ tokenCache( selector, groups ).slice( 0 );
+};
+
+function toSelector( tokens ) {
+ var i = 0,
+ len = tokens.length,
+ selector = "";
+ for ( ; i < len; i++ ) {
+ selector += tokens[i].value;
+ }
+ return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+ var dir = combinator.dir,
+ skip = combinator.next,
+ key = skip || dir,
+ checkNonElements = base && key === "parentNode",
+ doneName = done++;
+
+ return combinator.first ?
+ // Check against closest ancestor/preceding element
+ function( elem, context, xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ return matcher( elem, context, xml );
+ }
+ }
+ return false;
+ } :
+
+ // Check against all ancestor/preceding elements
+ function( elem, context, xml ) {
+ var oldCache, uniqueCache, outerCache,
+ newCache = [ dirruns, doneName ];
+
+ // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
+ if ( xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ if ( matcher( elem, context, xml ) ) {
+ return true;
+ }
+ }
+ }
+ } else {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ outerCache = elem[ expando ] || (elem[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
+
+ if ( skip && skip === elem.nodeName.toLowerCase() ) {
+ elem = elem[ dir ] || elem;
+ } else if ( (oldCache = uniqueCache[ key ]) &&
+ oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
+
+ // Assign to newCache so results back-propagate to previous elements
+ return (newCache[ 2 ] = oldCache[ 2 ]);
+ } else {
+ // Reuse newcache so results back-propagate to previous elements
+ uniqueCache[ key ] = newCache;
+
+ // A match means we're done; a fail means we have to keep checking
+ if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
+ return true;
+ }
+ }
+ }
+ }
+ }
+ return false;
+ };
+}
+
+function elementMatcher( matchers ) {
+ return matchers.length > 1 ?
+ function( elem, context, xml ) {
+ var i = matchers.length;
+ while ( i-- ) {
+ if ( !matchers[i]( elem, context, xml ) ) {
+ return false;
+ }
+ }
+ return true;
+ } :
+ matchers[0];
+}
+
+function multipleContexts( selector, contexts, results ) {
+ var i = 0,
+ len = contexts.length;
+ for ( ; i < len; i++ ) {
+ Sizzle( selector, contexts[i], results );
+ }
+ return results;
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+ var elem,
+ newUnmatched = [],
+ i = 0,
+ len = unmatched.length,
+ mapped = map != null;
+
+ for ( ; i < len; i++ ) {
+ if ( (elem = unmatched[i]) ) {
+ if ( !filter || filter( elem, context, xml ) ) {
+ newUnmatched.push( elem );
+ if ( mapped ) {
+ map.push( i );
+ }
+ }
+ }
+ }
+
+ return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+ if ( postFilter && !postFilter[ expando ] ) {
+ postFilter = setMatcher( postFilter );
+ }
+ if ( postFinder && !postFinder[ expando ] ) {
+ postFinder = setMatcher( postFinder, postSelector );
+ }
+ return markFunction(function( seed, results, context, xml ) {
+ var temp, i, elem,
+ preMap = [],
+ postMap = [],
+ preexisting = results.length,
+
+ // Get initial elements from seed or context
+ elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+ // Prefilter to get matcher input, preserving a map for seed-results synchronization
+ matcherIn = preFilter && ( seed || !selector ) ?
+ condense( elems, preMap, preFilter, context, xml ) :
+ elems,
+
+ matcherOut = matcher ?
+ // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+ postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+ // ...intermediate processing is necessary
+ [] :
+
+ // ...otherwise use results directly
+ results :
+ matcherIn;
+
+ // Find primary matches
+ if ( matcher ) {
+ matcher( matcherIn, matcherOut, context, xml );
+ }
+
+ // Apply postFilter
+ if ( postFilter ) {
+ temp = condense( matcherOut, postMap );
+ postFilter( temp, [], context, xml );
+
+ // Un-match failing elements by moving them back to matcherIn
+ i = temp.length;
+ while ( i-- ) {
+ if ( (elem = temp[i]) ) {
+ matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+ }
+ }
+ }
+
+ if ( seed ) {
+ if ( postFinder || preFilter ) {
+ if ( postFinder ) {
+ // Get the final matcherOut by condensing this intermediate into postFinder contexts
+ temp = [];
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) ) {
+ // Restore matcherIn since elem is not yet a final match
+ temp.push( (matcherIn[i] = elem) );
+ }
+ }
+ postFinder( null, (matcherOut = []), temp, xml );
+ }
+
+ // Move matched elements from seed to results to keep them synchronized
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) &&
+ (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
+
+ seed[temp] = !(results[temp] = elem);
+ }
+ }
+ }
+
+ // Add elements to results, through postFinder if defined
+ } else {
+ matcherOut = condense(
+ matcherOut === results ?
+ matcherOut.splice( preexisting, matcherOut.length ) :
+ matcherOut
+ );
+ if ( postFinder ) {
+ postFinder( null, results, matcherOut, xml );
+ } else {
+ push.apply( results, matcherOut );
+ }
+ }
+ });
+}
+
+function matcherFromTokens( tokens ) {
+ var checkContext, matcher, j,
+ len = tokens.length,
+ leadingRelative = Expr.relative[ tokens[0].type ],
+ implicitRelative = leadingRelative || Expr.relative[" "],
+ i = leadingRelative ? 1 : 0,
+
+ // The foundational matcher ensures that elements are reachable from top-level context(s)
+ matchContext = addCombinator( function( elem ) {
+ return elem === checkContext;
+ }, implicitRelative, true ),
+ matchAnyContext = addCombinator( function( elem ) {
+ return indexOf( checkContext, elem ) > -1;
+ }, implicitRelative, true ),
+ matchers = [ function( elem, context, xml ) {
+ var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+ (checkContext = context).nodeType ?
+ matchContext( elem, context, xml ) :
+ matchAnyContext( elem, context, xml ) );
+ // Avoid hanging onto element (issue #299)
+ checkContext = null;
+ return ret;
+ } ];
+
+ for ( ; i < len; i++ ) {
+ if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+ matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+ } else {
+ matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+ // Return special upon seeing a positional matcher
+ if ( matcher[ expando ] ) {
+ // Find the next relative operator (if any) for proper handling
+ j = ++i;
+ for ( ; j < len; j++ ) {
+ if ( Expr.relative[ tokens[j].type ] ) {
+ break;
+ }
+ }
+ return setMatcher(
+ i > 1 && elementMatcher( matchers ),
+ i > 1 && toSelector(
+ // If the preceding token was a descendant combinator, insert an implicit any-element `*`
+ tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
+ ).replace( rtrim, "$1" ),
+ matcher,
+ i < j && matcherFromTokens( tokens.slice( i, j ) ),
+ j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+ j < len && toSelector( tokens )
+ );
+ }
+ matchers.push( matcher );
+ }
+ }
+
+ return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+ var bySet = setMatchers.length > 0,
+ byElement = elementMatchers.length > 0,
+ superMatcher = function( seed, context, xml, results, outermost ) {
+ var elem, j, matcher,
+ matchedCount = 0,
+ i = "0",
+ unmatched = seed && [],
+ setMatched = [],
+ contextBackup = outermostContext,
+ // We must always have either seed elements or outermost context
+ elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
+ // Use integer dirruns iff this is the outermost matcher
+ dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
+ len = elems.length;
+
+ if ( outermost ) {
+ outermostContext = context === document || context || outermost;
+ }
+
+ // Add elements passing elementMatchers directly to results
+ // Support: IE<9, Safari
+ // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
+ for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
+ if ( byElement && elem ) {
+ j = 0;
+ if ( !context && elem.ownerDocument !== document ) {
+ setDocument( elem );
+ xml = !documentIsHTML;
+ }
+ while ( (matcher = elementMatchers[j++]) ) {
+ if ( matcher( elem, context || document, xml) ) {
+ results.push( elem );
+ break;
+ }
+ }
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ }
+ }
+
+ // Track unmatched elements for set filters
+ if ( bySet ) {
+ // They will have gone through all possible matchers
+ if ( (elem = !matcher && elem) ) {
+ matchedCount--;
+ }
+
+ // Lengthen the array for every element, matched or not
+ if ( seed ) {
+ unmatched.push( elem );
+ }
+ }
+ }
+
+ // `i` is now the count of elements visited above, and adding it to `matchedCount`
+ // makes the latter nonnegative.
+ matchedCount += i;
+
+ // Apply set filters to unmatched elements
+ // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
+ // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
+ // no element matchers and no seed.
+ // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
+ // case, which will result in a "00" `matchedCount` that differs from `i` but is also
+ // numerically zero.
+ if ( bySet && i !== matchedCount ) {
+ j = 0;
+ while ( (matcher = setMatchers[j++]) ) {
+ matcher( unmatched, setMatched, context, xml );
+ }
+
+ if ( seed ) {
+ // Reintegrate element matches to eliminate the need for sorting
+ if ( matchedCount > 0 ) {
+ while ( i-- ) {
+ if ( !(unmatched[i] || setMatched[i]) ) {
+ setMatched[i] = pop.call( results );
+ }
+ }
+ }
+
+ // Discard index placeholder values to get only actual matches
+ setMatched = condense( setMatched );
+ }
+
+ // Add matches to results
+ push.apply( results, setMatched );
+
+ // Seedless set matches succeeding multiple successful matchers stipulate sorting
+ if ( outermost && !seed && setMatched.length > 0 &&
+ ( matchedCount + setMatchers.length ) > 1 ) {
+
+ Sizzle.uniqueSort( results );
+ }
+ }
+
+ // Override manipulation of globals by nested matchers
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ outermostContext = contextBackup;
+ }
+
+ return unmatched;
+ };
+
+ return bySet ?
+ markFunction( superMatcher ) :
+ superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
+ var i,
+ setMatchers = [],
+ elementMatchers = [],
+ cached = compilerCache[ selector + " " ];
+
+ if ( !cached ) {
+ // Generate a function of recursive functions that can be used to check each element
+ if ( !match ) {
+ match = tokenize( selector );
+ }
+ i = match.length;
+ while ( i-- ) {
+ cached = matcherFromTokens( match[i] );
+ if ( cached[ expando ] ) {
+ setMatchers.push( cached );
+ } else {
+ elementMatchers.push( cached );
+ }
+ }
+
+ // Cache the compiled function
+ cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+
+ // Save selector and tokenization
+ cached.selector = selector;
+ }
+ return cached;
+};
+
+/**
+ * A low-level selection function that works with Sizzle's compiled
+ * selector functions
+ * @param {String|Function} selector A selector or a pre-compiled
+ * selector function built with Sizzle.compile
+ * @param {Element} context
+ * @param {Array} [results]
+ * @param {Array} [seed] A set of elements to match against
+ */
+select = Sizzle.select = function( selector, context, results, seed ) {
+ var i, tokens, token, type, find,
+ compiled = typeof selector === "function" && selector,
+ match = !seed && tokenize( (selector = compiled.selector || selector) );
+
+ results = results || [];
+
+ // Try to minimize operations if there is only one selector in the list and no seed
+ // (the latter of which guarantees us context)
+ if ( match.length === 1 ) {
+
+ // Reduce context if the leading compound selector is an ID
+ tokens = match[0] = match[0].slice( 0 );
+ if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+ context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
+
+ context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
+ if ( !context ) {
+ return results;
+
+ // Precompiled matchers will still verify ancestry, so step up a level
+ } else if ( compiled ) {
+ context = context.parentNode;
+ }
+
+ selector = selector.slice( tokens.shift().value.length );
+ }
+
+ // Fetch a seed set for right-to-left matching
+ i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
+ while ( i-- ) {
+ token = tokens[i];
+
+ // Abort if we hit a combinator
+ if ( Expr.relative[ (type = token.type) ] ) {
+ break;
+ }
+ if ( (find = Expr.find[ type ]) ) {
+ // Search, expanding context for leading sibling combinators
+ if ( (seed = find(
+ token.matches[0].replace( runescape, funescape ),
+ rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
+ )) ) {
+
+ // If seed is empty or no tokens remain, we can return early
+ tokens.splice( i, 1 );
+ selector = seed.length && toSelector( tokens );
+ if ( !selector ) {
+ push.apply( results, seed );
+ return results;
+ }
+
+ break;
+ }
+ }
+ }
+ }
+
+ // Compile and execute a filtering function if one is not provided
+ // Provide `match` to avoid retokenization if we modified the selector above
+ ( compiled || compile( selector, match ) )(
+ seed,
+ context,
+ !documentIsHTML,
+ results,
+ !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
+ );
+ return results;
+};
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
+
+// Support: Chrome 14-35+
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = !!hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert(function( el ) {
+ // Should return 1, but returns 4 (following)
+ return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
+});
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert(function( el ) {
+ el.innerHTML = "<a href='#'></a>";
+ return el.firstChild.getAttribute("href") === "#" ;
+}) ) {
+ addHandle( "type|href|height|width", function( elem, name, isXML ) {
+ if ( !isXML ) {
+ return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+ }
+ });
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert(function( el ) {
+ el.innerHTML = "<input/>";
+ el.firstChild.setAttribute( "value", "" );
+ return el.firstChild.getAttribute( "value" ) === "";
+}) ) {
+ addHandle( "value", function( elem, name, isXML ) {
+ if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+ return elem.defaultValue;
+ }
+ });
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert(function( el ) {
+ return el.getAttribute("disabled") == null;
+}) ) {
+ addHandle( booleans, function( elem, name, isXML ) {
+ var val;
+ if ( !isXML ) {
+ return elem[ name ] === true ? name.toLowerCase() :
+ (val = elem.getAttributeNode( name )) && val.specified ?
+ val.value :
+ null;
+ }
+ });
+}
+
+return Sizzle;
+
+})( window );
+
+
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+
+// Deprecated
+jQuery.expr[ ":" ] = jQuery.expr.pseudos;
+jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+jQuery.escapeSelector = Sizzle.escape;
+
+
+
+
+var dir = function( elem, dir, until ) {
+ var matched = [],
+ truncate = until !== undefined;
+
+ while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+ if ( elem.nodeType === 1 ) {
+ if ( truncate && jQuery( elem ).is( until ) ) {
+ break;
+ }
+ matched.push( elem );
+ }
+ }
+ return matched;
+};
+
+
+var siblings = function( n, elem ) {
+ var matched = [];
+
+ for ( ; n; n = n.nextSibling ) {
+ if ( n.nodeType === 1 && n !== elem ) {
+ matched.push( n );
+ }
+ }
+
+ return matched;
+};
+
+
+var rneedsContext = jQuery.expr.match.needsContext;
+
+
+
+function nodeName( elem, name ) {
+
+ return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+};
+var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
+
+
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+ if ( isFunction( qualifier ) ) {
+ return jQuery.grep( elements, function( elem, i ) {
+ return !!qualifier.call( elem, i, elem ) !== not;
+ } );
+ }
+
+ // Single element
+ if ( qualifier.nodeType ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( elem === qualifier ) !== not;
+ } );
+ }
+
+ // Arraylike of elements (jQuery, arguments, Array)
+ if ( typeof qualifier !== "string" ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
+ } );
+ }
+
+ // Filtered directly for both simple and complex selectors
+ return jQuery.filter( qualifier, elements, not );
+}
+
+jQuery.filter = function( expr, elems, not ) {
+ var elem = elems[ 0 ];
+
+ if ( not ) {
+ expr = ":not(" + expr + ")";
+ }
+
+ if ( elems.length === 1 && elem.nodeType === 1 ) {
+ return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
+ }
+
+ return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+ return elem.nodeType === 1;
+ } ) );
+};
+
+jQuery.fn.extend( {
+ find: function( selector ) {
+ var i, ret,
+ len = this.length,
+ self = this;
+
+ if ( typeof selector !== "string" ) {
+ return this.pushStack( jQuery( selector ).filter( function() {
+ for ( i = 0; i < len; i++ ) {
+ if ( jQuery.contains( self[ i ], this ) ) {
+ return true;
+ }
+ }
+ } ) );
+ }
+
+ ret = this.pushStack( [] );
+
+ for ( i = 0; i < len; i++ ) {
+ jQuery.find( selector, self[ i ], ret );
+ }
+
+ return len > 1 ? jQuery.uniqueSort( ret ) : ret;
+ },
+ filter: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], false ) );
+ },
+ not: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], true ) );
+ },
+ is: function( selector ) {
+ return !!winnow(
+ this,
+
+ // If this is a positional/relative selector, check membership in the returned set
+ // so $("p:first").is("p:last") won't return true for a doc with two "p".
+ typeof selector === "string" && rneedsContext.test( selector ) ?
+ jQuery( selector ) :
+ selector || [],
+ false
+ ).length;
+ }
+} );
+
+
+// Initialize a jQuery object
+
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+ // A simple way to check for HTML strings
+ // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+ // Strict HTML recognition (#11290: must start with <)
+ // Shortcut simple #id case for speed
+ rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
+
+ init = jQuery.fn.init = function( selector, context, root ) {
+ var match, elem;
+
+ // HANDLE: $(""), $(null), $(undefined), $(false)
+ if ( !selector ) {
+ return this;
+ }
+
+ // Method init() accepts an alternate rootjQuery
+ // so migrate can support jQuery.sub (gh-2101)
+ root = root || rootjQuery;
+
+ // Handle HTML strings
+ if ( typeof selector === "string" ) {
+ if ( selector[ 0 ] === "<" &&
+ selector[ selector.length - 1 ] === ">" &&
+ selector.length >= 3 ) {
+
+ // Assume that strings that start and end with <> are HTML and skip the regex check
+ match = [ null, selector, null ];
+
+ } else {
+ match = rquickExpr.exec( selector );
+ }
+
+ // Match html or make sure no context is specified for #id
+ if ( match && ( match[ 1 ] || !context ) ) {
+
+ // HANDLE: $(html) -> $(array)
+ if ( match[ 1 ] ) {
+ context = context instanceof jQuery ? context[ 0 ] : context;
+
+ // Option to run scripts is true for back-compat
+ // Intentionally let the error be thrown if parseHTML is not present
+ jQuery.merge( this, jQuery.parseHTML(
+ match[ 1 ],
+ context && context.nodeType ? context.ownerDocument || context : document,
+ true
+ ) );
+
+ // HANDLE: $(html, props)
+ if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
+ for ( match in context ) {
+
+ // Properties of context are called as methods if possible
+ if ( isFunction( this[ match ] ) ) {
+ this[ match ]( context[ match ] );
+
+ // ...and otherwise set as attributes
+ } else {
+ this.attr( match, context[ match ] );
+ }
+ }
+ }
+
+ return this;
+
+ // HANDLE: $(#id)
+ } else {
+ elem = document.getElementById( match[ 2 ] );
+
+ if ( elem ) {
+
+ // Inject the element directly into the jQuery object
+ this[ 0 ] = elem;
+ this.length = 1;
+ }
+ return this;
+ }
+
+ // HANDLE: $(expr, $(...))
+ } else if ( !context || context.jquery ) {
+ return ( context || root ).find( selector );
+
+ // HANDLE: $(expr, context)
+ // (which is just equivalent to: $(context).find(expr)
+ } else {
+ return this.constructor( context ).find( selector );
+ }
+
+ // HANDLE: $(DOMElement)
+ } else if ( selector.nodeType ) {
+ this[ 0 ] = selector;
+ this.length = 1;
+ return this;
+
+ // HANDLE: $(function)
+ // Shortcut for document ready
+ } else if ( isFunction( selector ) ) {
+ return root.ready !== undefined ?
+ root.ready( selector ) :
+
+ // Execute immediately if ready is not present
+ selector( jQuery );
+ }
+
+ return jQuery.makeArray( selector, this );
+ };
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+
+var rparentsprev = /^(?:parents|prev(?:Until|All))/,
+
+ // Methods guaranteed to produce a unique set when starting from a unique set
+ guaranteedUnique = {
+ children: true,
+ contents: true,
+ next: true,
+ prev: true
+ };
+
+jQuery.fn.extend( {
+ has: function( target ) {
+ var targets = jQuery( target, this ),
+ l = targets.length;
+
+ return this.filter( function() {
+ var i = 0;
+ for ( ; i < l; i++ ) {
+ if ( jQuery.contains( this, targets[ i ] ) ) {
+ return true;
+ }
+ }
+ } );
+ },
+
+ closest: function( selectors, context ) {
+ var cur,
+ i = 0,
+ l = this.length,
+ matched = [],
+ targets = typeof selectors !== "string" && jQuery( selectors );
+
+ // Positional selectors never match, since there's no _selection_ context
+ if ( !rneedsContext.test( selectors ) ) {
+ for ( ; i < l; i++ ) {
+ for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
+
+ // Always skip document fragments
+ if ( cur.nodeType < 11 && ( targets ?
+ targets.index( cur ) > -1 :
+
+ // Don't pass non-elements to Sizzle
+ cur.nodeType === 1 &&
+ jQuery.find.matchesSelector( cur, selectors ) ) ) {
+
+ matched.push( cur );
+ break;
+ }
+ }
+ }
+ }
+
+ return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
+ },
+
+ // Determine the position of an element within the set
+ index: function( elem ) {
+
+ // No argument, return index in parent
+ if ( !elem ) {
+ return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
+ }
+
+ // Index in selector
+ if ( typeof elem === "string" ) {
+ return indexOf.call( jQuery( elem ), this[ 0 ] );
+ }
+
+ // Locate the position of the desired element
+ return indexOf.call( this,
+
+ // If it receives a jQuery object, the first element is used
+ elem.jquery ? elem[ 0 ] : elem
+ );
+ },
+
+ add: function( selector, context ) {
+ return this.pushStack(
+ jQuery.uniqueSort(
+ jQuery.merge( this.get(), jQuery( selector, context ) )
+ )
+ );
+ },
+
+ addBack: function( selector ) {
+ return this.add( selector == null ?
+ this.prevObject : this.prevObject.filter( selector )
+ );
+ }
+} );
+
+function sibling( cur, dir ) {
+ while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
+ return cur;
+}
+
+jQuery.each( {
+ parent: function( elem ) {
+ var parent = elem.parentNode;
+ return parent && parent.nodeType !== 11 ? parent : null;
+ },
+ parents: function( elem ) {
+ return dir( elem, "parentNode" );
+ },
+ parentsUntil: function( elem, i, until ) {
+ return dir( elem, "parentNode", until );
+ },
+ next: function( elem ) {
+ return sibling( elem, "nextSibling" );
+ },
+ prev: function( elem ) {
+ return sibling( elem, "previousSibling" );
+ },
+ nextAll: function( elem ) {
+ return dir( elem, "nextSibling" );
+ },
+ prevAll: function( elem ) {
+ return dir( elem, "previousSibling" );
+ },
+ nextUntil: function( elem, i, until ) {
+ return dir( elem, "nextSibling", until );
+ },
+ prevUntil: function( elem, i, until ) {
+ return dir( elem, "previousSibling", until );
+ },
+ siblings: function( elem ) {
+ return siblings( ( elem.parentNode || {} ).firstChild, elem );
+ },
+ children: function( elem ) {
+ return siblings( elem.firstChild );
+ },
+ contents: function( elem ) {
+ if ( nodeName( elem, "iframe" ) ) {
+ return elem.contentDocument;
+ }
+
+ // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+ // Treat the template element as a regular one in browsers that
+ // don't support it.
+ if ( nodeName( elem, "template" ) ) {
+ elem = elem.content || elem;
+ }
+
+ return jQuery.merge( [], elem.childNodes );
+ }
+}, function( name, fn ) {
+ jQuery.fn[ name ] = function( until, selector ) {
+ var matched = jQuery.map( this, fn, until );
+
+ if ( name.slice( -5 ) !== "Until" ) {
+ selector = until;
+ }
+
+ if ( selector && typeof selector === "string" ) {
+ matched = jQuery.filter( selector, matched );
+ }
+
+ if ( this.length > 1 ) {
+
+ // Remove duplicates
+ if ( !guaranteedUnique[ name ] ) {
+ jQuery.uniqueSort( matched );
+ }
+
+ // Reverse order for parents* and prev-derivatives
+ if ( rparentsprev.test( name ) ) {
+ matched.reverse();
+ }
+ }
+
+ return this.pushStack( matched );
+ };
+} );
+var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
+
+
+
+// Convert String-formatted options into Object-formatted ones
+function createOptions( options ) {
+ var object = {};
+ jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
+ object[ flag ] = true;
+ } );
+ return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ * options: an optional list of space-separated options that will change how
+ * the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ * once: will ensure the callback list can only be fired once (like a Deferred)
+ *
+ * memory: will keep track of previous values and will call any callback added
+ * after the list has been fired right away with the latest "memorized"
+ * values (like a Deferred)
+ *
+ * unique: will ensure a callback can only be added once (no duplicate in the list)
+ *
+ * stopOnFalse: interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+ // Convert options from String-formatted to Object-formatted if needed
+ // (we check in cache first)
+ options = typeof options === "string" ?
+ createOptions( options ) :
+ jQuery.extend( {}, options );
+
+ var // Flag to know if list is currently firing
+ firing,
+
+ // Last fire value for non-forgettable lists
+ memory,
+
+ // Flag to know if list was already fired
+ fired,
+
+ // Flag to prevent firing
+ locked,
+
+ // Actual callback list
+ list = [],
+
+ // Queue of execution data for repeatable lists
+ queue = [],
+
+ // Index of currently firing callback (modified by add/remove as needed)
+ firingIndex = -1,
+
+ // Fire callbacks
+ fire = function() {
+
+ // Enforce single-firing
+ locked = locked || options.once;
+
+ // Execute callbacks for all pending executions,
+ // respecting firingIndex overrides and runtime changes
+ fired = firing = true;
+ for ( ; queue.length; firingIndex = -1 ) {
+ memory = queue.shift();
+ while ( ++firingIndex < list.length ) {
+
+ // Run callback and check for early termination
+ if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
+ options.stopOnFalse ) {
+
+ // Jump to end and forget the data so .add doesn't re-fire
+ firingIndex = list.length;
+ memory = false;
+ }
+ }
+ }
+
+ // Forget the data if we're done with it
+ if ( !options.memory ) {
+ memory = false;
+ }
+
+ firing = false;
+
+ // Clean up if we're done firing for good
+ if ( locked ) {
+
+ // Keep an empty list if we have data for future add calls
+ if ( memory ) {
+ list = [];
+
+ // Otherwise, this object is spent
+ } else {
+ list = "";
+ }
+ }
+ },
+
+ // Actual Callbacks object
+ self = {
+
+ // Add a callback or a collection of callbacks to the list
+ add: function() {
+ if ( list ) {
+
+ // If we have memory from a past run, we should fire after adding
+ if ( memory && !firing ) {
+ firingIndex = list.length - 1;
+ queue.push( memory );
+ }
+
+ ( function add( args ) {
+ jQuery.each( args, function( _, arg ) {
+ if ( isFunction( arg ) ) {
+ if ( !options.unique || !self.has( arg ) ) {
+ list.push( arg );
+ }
+ } else if ( arg && arg.length && toType( arg ) !== "string" ) {
+
+ // Inspect recursively
+ add( arg );
+ }
+ } );
+ } )( arguments );
+
+ if ( memory && !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Remove a callback from the list
+ remove: function() {
+ jQuery.each( arguments, function( _, arg ) {
+ var index;
+ while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+ list.splice( index, 1 );
+
+ // Handle firing indexes
+ if ( index <= firingIndex ) {
+ firingIndex--;
+ }
+ }
+ } );
+ return this;
+ },
+
+ // Check if a given callback is in the list.
+ // If no argument is given, return whether or not list has callbacks attached.
+ has: function( fn ) {
+ return fn ?
+ jQuery.inArray( fn, list ) > -1 :
+ list.length > 0;
+ },
+
+ // Remove all callbacks from the list
+ empty: function() {
+ if ( list ) {
+ list = [];
+ }
+ return this;
+ },
+
+ // Disable .fire and .add
+ // Abort any current/pending executions
+ // Clear all callbacks and values
+ disable: function() {
+ locked = queue = [];
+ list = memory = "";
+ return this;
+ },
+ disabled: function() {
+ return !list;
+ },
+
+ // Disable .fire
+ // Also disable .add unless we have memory (since it would have no effect)
+ // Abort any pending executions
+ lock: function() {
+ locked = queue = [];
+ if ( !memory && !firing ) {
+ list = memory = "";
+ }
+ return this;
+ },
+ locked: function() {
+ return !!locked;
+ },
+
+ // Call all callbacks with the given context and arguments
+ fireWith: function( context, args ) {
+ if ( !locked ) {
+ args = args || [];
+ args = [ context, args.slice ? args.slice() : args ];
+ queue.push( args );
+ if ( !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Call all the callbacks with the given arguments
+ fire: function() {
+ self.fireWith( this, arguments );
+ return this;
+ },
+
+ // To know if the callbacks have already been called at least once
+ fired: function() {
+ return !!fired;
+ }
+ };
+
+ return self;
+};
+
+
+function Identity( v ) {
+ return v;
+}
+function Thrower( ex ) {
+ throw ex;
+}
+
+function adoptValue( value, resolve, reject, noValue ) {
+ var method;
+
+ try {
+
+ // Check for promise aspect first to privilege synchronous behavior
+ if ( value && isFunction( ( method = value.promise ) ) ) {
+ method.call( value ).done( resolve ).fail( reject );
+
+ // Other thenables
+ } else if ( value && isFunction( ( method = value.then ) ) ) {
+ method.call( value, resolve, reject );
+
+ // Other non-thenables
+ } else {
+
+ // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+ // * false: [ value ].slice( 0 ) => resolve( value )
+ // * true: [ value ].slice( 1 ) => resolve()
+ resolve.apply( undefined, [ value ].slice( noValue ) );
+ }
+
+ // For Promises/A+, convert exceptions into rejections
+ // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
+ // Deferred#then to conditionally suppress rejection.
+ } catch ( value ) {
+
+ // Support: Android 4.0 only
+ // Strict mode functions invoked without .call/.apply get global-object context
+ reject.apply( undefined, [ value ] );
+ }
+}
+
+jQuery.extend( {
+
+ Deferred: function( func ) {
+ var tuples = [
+
+ // action, add listener, callbacks,
+ // ... .then handlers, argument index, [final state]
+ [ "notify", "progress", jQuery.Callbacks( "memory" ),
+ jQuery.Callbacks( "memory" ), 2 ],
+ [ "resolve", "done", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 0, "resolved" ],
+ [ "reject", "fail", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 1, "rejected" ]
+ ],
+ state = "pending",
+ promise = {
+ state: function() {
+ return state;
+ },
+ always: function() {
+ deferred.done( arguments ).fail( arguments );
+ return this;
+ },
+ "catch": function( fn ) {
+ return promise.then( null, fn );
+ },
+
+ // Keep pipe for back-compat
+ pipe: function( /* fnDone, fnFail, fnProgress */ ) {
+ var fns = arguments;
+
+ return jQuery.Deferred( function( newDefer ) {
+ jQuery.each( tuples, function( i, tuple ) {
+
+ // Map tuples (progress, done, fail) to arguments (done, fail, progress)
+ var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
+
+ // deferred.progress(function() { bind to newDefer or newDefer.notify })
+ // deferred.done(function() { bind to newDefer or newDefer.resolve })
+ // deferred.fail(function() { bind to newDefer or newDefer.reject })
+ deferred[ tuple[ 1 ] ]( function() {
+ var returned = fn && fn.apply( this, arguments );
+ if ( returned && isFunction( returned.promise ) ) {
+ returned.promise()
+ .progress( newDefer.notify )
+ .done( newDefer.resolve )
+ .fail( newDefer.reject );
+ } else {
+ newDefer[ tuple[ 0 ] + "With" ](
+ this,
+ fn ? [ returned ] : arguments
+ );
+ }
+ } );
+ } );
+ fns = null;
+ } ).promise();
+ },
+ then: function( onFulfilled, onRejected, onProgress ) {
+ var maxDepth = 0;
+ function resolve( depth, deferred, handler, special ) {
+ return function() {
+ var that = this,
+ args = arguments,
+ mightThrow = function() {
+ var returned, then;
+
+ // Support: Promises/A+ section 2.3.3.3.3
+ // https://promisesaplus.com/#point-59
+ // Ignore double-resolution attempts
+ if ( depth < maxDepth ) {
+ return;
+ }
+
+ returned = handler.apply( that, args );
+
+ // Support: Promises/A+ section 2.3.1
+ // https://promisesaplus.com/#point-48
+ if ( returned === deferred.promise() ) {
+ throw new TypeError( "Thenable self-resolution" );
+ }
+
+ // Support: Promises/A+ sections 2.3.3.1, 3.5
+ // https://promisesaplus.com/#point-54
+ // https://promisesaplus.com/#point-75
+ // Retrieve `then` only once
+ then = returned &&
+
+ // Support: Promises/A+ section 2.3.4
+ // https://promisesaplus.com/#point-64
+ // Only check objects and functions for thenability
+ ( typeof returned === "object" ||
+ typeof returned === "function" ) &&
+ returned.then;
+
+ // Handle a returned thenable
+ if ( isFunction( then ) ) {
+
+ // Special processors (notify) just wait for resolution
+ if ( special ) {
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special )
+ );
+
+ // Normal processors (resolve) also hook into progress
+ } else {
+
+ // ...and disregard older resolution values
+ maxDepth++;
+
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special ),
+ resolve( maxDepth, deferred, Identity,
+ deferred.notifyWith )
+ );
+ }
+
+ // Handle all other returned values
+ } else {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Identity ) {
+ that = undefined;
+ args = [ returned ];
+ }
+
+ // Process the value(s)
+ // Default process is resolve
+ ( special || deferred.resolveWith )( that, args );
+ }
+ },
+
+ // Only normal processors (resolve) catch and reject exceptions
+ process = special ?
+ mightThrow :
+ function() {
+ try {
+ mightThrow();
+ } catch ( e ) {
+
+ if ( jQuery.Deferred.exceptionHook ) {
+ jQuery.Deferred.exceptionHook( e,
+ process.stackTrace );
+ }
+
+ // Support: Promises/A+ section 2.3.3.3.4.1
+ // https://promisesaplus.com/#point-61
+ // Ignore post-resolution exceptions
+ if ( depth + 1 >= maxDepth ) {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Thrower ) {
+ that = undefined;
+ args = [ e ];
+ }
+
+ deferred.rejectWith( that, args );
+ }
+ }
+ };
+
+ // Support: Promises/A+ section 2.3.3.3.1
+ // https://promisesaplus.com/#point-57
+ // Re-resolve promises immediately to dodge false rejection from
+ // subsequent errors
+ if ( depth ) {
+ process();
+ } else {
+
+ // Call an optional hook to record the stack, in case of exception
+ // since it's otherwise lost when execution goes async
+ if ( jQuery.Deferred.getStackHook ) {
+ process.stackTrace = jQuery.Deferred.getStackHook();
+ }
+ window.setTimeout( process );
+ }
+ };
+ }
+
+ return jQuery.Deferred( function( newDefer ) {
+
+ // progress_handlers.add( ... )
+ tuples[ 0 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onProgress ) ?
+ onProgress :
+ Identity,
+ newDefer.notifyWith
+ )
+ );
+
+ // fulfilled_handlers.add( ... )
+ tuples[ 1 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onFulfilled ) ?
+ onFulfilled :
+ Identity
+ )
+ );
+
+ // rejected_handlers.add( ... )
+ tuples[ 2 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onRejected ) ?
+ onRejected :
+ Thrower
+ )
+ );
+ } ).promise();
+ },
+
+ // Get a promise for this deferred
+ // If obj is provided, the promise aspect is added to the object
+ promise: function( obj ) {
+ return obj != null ? jQuery.extend( obj, promise ) : promise;
+ }
+ },
+ deferred = {};
+
+ // Add list-specific methods
+ jQuery.each( tuples, function( i, tuple ) {
+ var list = tuple[ 2 ],
+ stateString = tuple[ 5 ];
+
+ // promise.progress = list.add
+ // promise.done = list.add
+ // promise.fail = list.add
+ promise[ tuple[ 1 ] ] = list.add;
+
+ // Handle state
+ if ( stateString ) {
+ list.add(
+ function() {
+
+ // state = "resolved" (i.e., fulfilled)
+ // state = "rejected"
+ state = stateString;
+ },
+
+ // rejected_callbacks.disable
+ // fulfilled_callbacks.disable
+ tuples[ 3 - i ][ 2 ].disable,
+
+ // rejected_handlers.disable
+ // fulfilled_handlers.disable
+ tuples[ 3 - i ][ 3 ].disable,
+
+ // progress_callbacks.lock
+ tuples[ 0 ][ 2 ].lock,
+
+ // progress_handlers.lock
+ tuples[ 0 ][ 3 ].lock
+ );
+ }
+
+ // progress_handlers.fire
+ // fulfilled_handlers.fire
+ // rejected_handlers.fire
+ list.add( tuple[ 3 ].fire );
+
+ // deferred.notify = function() { deferred.notifyWith(...) }
+ // deferred.resolve = function() { deferred.resolveWith(...) }
+ // deferred.reject = function() { deferred.rejectWith(...) }
+ deferred[ tuple[ 0 ] ] = function() {
+ deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
+ return this;
+ };
+
+ // deferred.notifyWith = list.fireWith
+ // deferred.resolveWith = list.fireWith
+ // deferred.rejectWith = list.fireWith
+ deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
+ } );
+
+ // Make the deferred a promise
+ promise.promise( deferred );
+
+ // Call given func if any
+ if ( func ) {
+ func.call( deferred, deferred );
+ }
+
+ // All done!
+ return deferred;
+ },
+
+ // Deferred helper
+ when: function( singleValue ) {
+ var
+
+ // count of uncompleted subordinates
+ remaining = arguments.length,
+
+ // count of unprocessed arguments
+ i = remaining,
+
+ // subordinate fulfillment data
+ resolveContexts = Array( i ),
+ resolveValues = slice.call( arguments ),
+
+ // the master Deferred
+ master = jQuery.Deferred(),
+
+ // subordinate callback factory
+ updateFunc = function( i ) {
+ return function( value ) {
+ resolveContexts[ i ] = this;
+ resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
+ if ( !( --remaining ) ) {
+ master.resolveWith( resolveContexts, resolveValues );
+ }
+ };
+ };
+
+ // Single- and empty arguments are adopted like Promise.resolve
+ if ( remaining <= 1 ) {
+ adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
+ !remaining );
+
+ // Use .then() to unwrap secondary thenables (cf. gh-3000)
+ if ( master.state() === "pending" ||
+ isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
+
+ return master.then();
+ }
+ }
+
+ // Multiple arguments are aggregated like Promise.all array elements
+ while ( i-- ) {
+ adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
+ }
+
+ return master.promise();
+ }
+} );
+
+
+// These usually indicate a programmer mistake during development,
+// warn about them ASAP rather than swallowing them by default.
+var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
+
+jQuery.Deferred.exceptionHook = function( error, stack ) {
+
+ // Support: IE 8 - 9 only
+ // Console exists when dev tools are open, which can happen at any time
+ if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
+ window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
+ }
+};
+
+
+
+
+jQuery.readyException = function( error ) {
+ window.setTimeout( function() {
+ throw error;
+ } );
+};
+
+
+
+
+// The deferred used on DOM ready
+var readyList = jQuery.Deferred();
+
+jQuery.fn.ready = function( fn ) {
+
+ readyList
+ .then( fn )
+
+ // Wrap jQuery.readyException in a function so that the lookup
+ // happens at the time of error handling instead of callback
+ // registration.
+ .catch( function( error ) {
+ jQuery.readyException( error );
+ } );
+
+ return this;
+};
+
+jQuery.extend( {
+
+ // Is the DOM ready to be used? Set to true once it occurs.
+ isReady: false,
+
+ // A counter to track how many items to wait for before
+ // the ready event fires. See #6781
+ readyWait: 1,
+
+ // Handle when the DOM is ready
+ ready: function( wait ) {
+
+ // Abort if there are pending holds or we're already ready
+ if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+ return;
+ }
+
+ // Remember that the DOM is ready
+ jQuery.isReady = true;
+
+ // If a normal DOM Ready event fired, decrement, and wait if need be
+ if ( wait !== true && --jQuery.readyWait > 0 ) {
+ return;
+ }
+
+ // If there are functions bound, to execute
+ readyList.resolveWith( document, [ jQuery ] );
+ }
+} );
+
+jQuery.ready.then = readyList.then;
+
+// The ready event handler and self cleanup method
+function completed() {
+ document.removeEventListener( "DOMContentLoaded", completed );
+ window.removeEventListener( "load", completed );
+ jQuery.ready();
+}
+
+// Catch cases where $(document).ready() is called
+// after the browser event has already occurred.
+// Support: IE <=9 - 10 only
+// Older IE sometimes signals "interactive" too soon
+if ( document.readyState === "complete" ||
+ ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
+
+ // Handle it asynchronously to allow scripts the opportunity to delay ready
+ window.setTimeout( jQuery.ready );
+
+} else {
+
+ // Use the handy event callback
+ document.addEventListener( "DOMContentLoaded", completed );
+
+ // A fallback to window.onload, that will always work
+ window.addEventListener( "load", completed );
+}
+
+
+
+
+// Multifunctional method to get and set values of a collection
+// The value/s can optionally be executed if it's a function
+var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
+ var i = 0,
+ len = elems.length,
+ bulk = key == null;
+
+ // Sets many values
+ if ( toType( key ) === "object" ) {
+ chainable = true;
+ for ( i in key ) {
+ access( elems, fn, i, key[ i ], true, emptyGet, raw );
+ }
+
+ // Sets one value
+ } else if ( value !== undefined ) {
+ chainable = true;
+
+ if ( !isFunction( value ) ) {
+ raw = true;
+ }
+
+ if ( bulk ) {
+
+ // Bulk operations run against the entire set
+ if ( raw ) {
+ fn.call( elems, value );
+ fn = null;
+
+ // ...except when executing function values
+ } else {
+ bulk = fn;
+ fn = function( elem, key, value ) {
+ return bulk.call( jQuery( elem ), value );
+ };
+ }
+ }
+
+ if ( fn ) {
+ for ( ; i < len; i++ ) {
+ fn(
+ elems[ i ], key, raw ?
+ value :
+ value.call( elems[ i ], i, fn( elems[ i ], key ) )
+ );
+ }
+ }
+ }
+
+ if ( chainable ) {
+ return elems;
+ }
+
+ // Gets
+ if ( bulk ) {
+ return fn.call( elems );
+ }
+
+ return len ? fn( elems[ 0 ], key ) : emptyGet;
+};
+
+
+// Matches dashed string for camelizing
+var rmsPrefix = /^-ms-/,
+ rdashAlpha = /-([a-z])/g;
+
+// Used by camelCase as callback to replace()
+function fcamelCase( all, letter ) {
+ return letter.toUpperCase();
+}
+
+// Convert dashed to camelCase; used by the css and data modules
+// Support: IE <=9 - 11, Edge 12 - 15
+// Microsoft forgot to hump their vendor prefix (#9572)
+function camelCase( string ) {
+ return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+}
+var acceptData = function( owner ) {
+
+ // Accepts only:
+ // - Node
+ // - Node.ELEMENT_NODE
+ // - Node.DOCUMENT_NODE
+ // - Object
+ // - Any
+ return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
+};
+
+
+
+
+function Data() {
+ this.expando = jQuery.expando + Data.uid++;
+}
+
+Data.uid = 1;
+
+Data.prototype = {
+
+ cache: function( owner ) {
+
+ // Check if the owner object already has a cache
+ var value = owner[ this.expando ];
+
+ // If not, create one
+ if ( !value ) {
+ value = {};
+
+ // We can accept data for non-element nodes in modern browsers,
+ // but we should not, see #8335.
+ // Always return an empty object.
+ if ( acceptData( owner ) ) {
+
+ // If it is a node unlikely to be stringify-ed or looped over
+ // use plain assignment
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = value;
+
+ // Otherwise secure it in a non-enumerable property
+ // configurable must be true to allow the property to be
+ // deleted when data is removed
+ } else {
+ Object.defineProperty( owner, this.expando, {
+ value: value,
+ configurable: true
+ } );
+ }
+ }
+ }
+
+ return value;
+ },
+ set: function( owner, data, value ) {
+ var prop,
+ cache = this.cache( owner );
+
+ // Handle: [ owner, key, value ] args
+ // Always use camelCase key (gh-2257)
+ if ( typeof data === "string" ) {
+ cache[ camelCase( data ) ] = value;
+
+ // Handle: [ owner, { properties } ] args
+ } else {
+
+ // Copy the properties one-by-one to the cache object
+ for ( prop in data ) {
+ cache[ camelCase( prop ) ] = data[ prop ];
+ }
+ }
+ return cache;
+ },
+ get: function( owner, key ) {
+ return key === undefined ?
+ this.cache( owner ) :
+
+ // Always use camelCase key (gh-2257)
+ owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
+ },
+ access: function( owner, key, value ) {
+
+ // In cases where either:
+ //
+ // 1. No key was specified
+ // 2. A string key was specified, but no value provided
+ //
+ // Take the "read" path and allow the get method to determine
+ // which value to return, respectively either:
+ //
+ // 1. The entire cache object
+ // 2. The data stored at the key
+ //
+ if ( key === undefined ||
+ ( ( key && typeof key === "string" ) && value === undefined ) ) {
+
+ return this.get( owner, key );
+ }
+
+ // When the key is not a string, or both a key and value
+ // are specified, set or extend (existing objects) with either:
+ //
+ // 1. An object of properties
+ // 2. A key and value
+ //
+ this.set( owner, key, value );
+
+ // Since the "set" path can have two possible entry points
+ // return the expected data based on which path was taken[*]
+ return value !== undefined ? value : key;
+ },
+ remove: function( owner, key ) {
+ var i,
+ cache = owner[ this.expando ];
+
+ if ( cache === undefined ) {
+ return;
+ }
+
+ if ( key !== undefined ) {
+
+ // Support array or space separated string of keys
+ if ( Array.isArray( key ) ) {
+
+ // If key is an array of keys...
+ // We always set camelCase keys, so remove that.
+ key = key.map( camelCase );
+ } else {
+ key = camelCase( key );
+
+ // If a key with the spaces exists, use it.
+ // Otherwise, create an array by matching non-whitespace
+ key = key in cache ?
+ [ key ] :
+ ( key.match( rnothtmlwhite ) || [] );
+ }
+
+ i = key.length;
+
+ while ( i-- ) {
+ delete cache[ key[ i ] ];
+ }
+ }
+
+ // Remove the expando if there's no more data
+ if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
+
+ // Support: Chrome <=35 - 45
+ // Webkit & Blink performance suffers when deleting properties
+ // from DOM nodes, so set to undefined instead
+ // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = undefined;
+ } else {
+ delete owner[ this.expando ];
+ }
+ }
+ },
+ hasData: function( owner ) {
+ var cache = owner[ this.expando ];
+ return cache !== undefined && !jQuery.isEmptyObject( cache );
+ }
+};
+var dataPriv = new Data();
+
+var dataUser = new Data();
+
+
+
+// Implementation Summary
+//
+// 1. Enforce API surface and semantic compatibility with 1.9.x branch
+// 2. Improve the module's maintainability by reducing the storage
+// paths to a single mechanism.
+// 3. Use the same single mechanism to support "private" and "user" data.
+// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
+// 5. Avoid exposing implementation details on user objects (eg. expando properties)
+// 6. Provide a clear path for implementation upgrade to WeakMap in 2014
+
+var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
+ rmultiDash = /[A-Z]/g;
+
+function getData( data ) {
+ if ( data === "true" ) {
+ return true;
+ }
+
+ if ( data === "false" ) {
+ return false;
+ }
+
+ if ( data === "null" ) {
+ return null;
+ }
+
+ // Only convert to a number if it doesn't change the string
+ if ( data === +data + "" ) {
+ return +data;
+ }
+
+ if ( rbrace.test( data ) ) {
+ return JSON.parse( data );
+ }
+
+ return data;
+}
+
+function dataAttr( elem, key, data ) {
+ var name;
+
+ // If nothing was found internally, try to fetch any
+ // data from the HTML5 data-* attribute
+ if ( data === undefined && elem.nodeType === 1 ) {
+ name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
+ data = elem.getAttribute( name );
+
+ if ( typeof data === "string" ) {
+ try {
+ data = getData( data );
+ } catch ( e ) {}
+
+ // Make sure we set the data so it isn't changed later
+ dataUser.set( elem, key, data );
+ } else {
+ data = undefined;
+ }
+ }
+ return data;
+}
+
+jQuery.extend( {
+ hasData: function( elem ) {
+ return dataUser.hasData( elem ) || dataPriv.hasData( elem );
+ },
+
+ data: function( elem, name, data ) {
+ return dataUser.access( elem, name, data );
+ },
+
+ removeData: function( elem, name ) {
+ dataUser.remove( elem, name );
+ },
+
+ // TODO: Now that all calls to _data and _removeData have been replaced
+ // with direct calls to dataPriv methods, these can be deprecated.
+ _data: function( elem, name, data ) {
+ return dataPriv.access( elem, name, data );
+ },
+
+ _removeData: function( elem, name ) {
+ dataPriv.remove( elem, name );
+ }
+} );
+
+jQuery.fn.extend( {
+ data: function( key, value ) {
+ var i, name, data,
+ elem = this[ 0 ],
+ attrs = elem && elem.attributes;
+
+ // Gets all values
+ if ( key === undefined ) {
+ if ( this.length ) {
+ data = dataUser.get( elem );
+
+ if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
+ i = attrs.length;
+ while ( i-- ) {
+
+ // Support: IE 11 only
+ // The attrs elements can be null (#14894)
+ if ( attrs[ i ] ) {
+ name = attrs[ i ].name;
+ if ( name.indexOf( "data-" ) === 0 ) {
+ name = camelCase( name.slice( 5 ) );
+ dataAttr( elem, name, data[ name ] );
+ }
+ }
+ }
+ dataPriv.set( elem, "hasDataAttrs", true );
+ }
+ }
+
+ return data;
+ }
+
+ // Sets multiple values
+ if ( typeof key === "object" ) {
+ return this.each( function() {
+ dataUser.set( this, key );
+ } );
+ }
+
+ return access( this, function( value ) {
+ var data;
+
+ // The calling jQuery object (element matches) is not empty
+ // (and therefore has an element appears at this[ 0 ]) and the
+ // `value` parameter was not undefined. An empty jQuery object
+ // will result in `undefined` for elem = this[ 0 ] which will
+ // throw an exception if an attempt to read a data cache is made.
+ if ( elem && value === undefined ) {
+
+ // Attempt to get data from the cache
+ // The key will always be camelCased in Data
+ data = dataUser.get( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // Attempt to "discover" the data in
+ // HTML5 custom data-* attrs
+ data = dataAttr( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // We tried really hard, but the data doesn't exist.
+ return;
+ }
+
+ // Set the data...
+ this.each( function() {
+
+ // We always store the camelCased key
+ dataUser.set( this, key, value );
+ } );
+ }, null, value, arguments.length > 1, null, true );
+ },
+
+ removeData: function( key ) {
+ return this.each( function() {
+ dataUser.remove( this, key );
+ } );
+ }
+} );
+
+
+jQuery.extend( {
+ queue: function( elem, type, data ) {
+ var queue;
+
+ if ( elem ) {
+ type = ( type || "fx" ) + "queue";
+ queue = dataPriv.get( elem, type );
+
+ // Speed up dequeue by getting out quickly if this is just a lookup
+ if ( data ) {
+ if ( !queue || Array.isArray( data ) ) {
+ queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
+ } else {
+ queue.push( data );
+ }
+ }
+ return queue || [];
+ }
+ },
+
+ dequeue: function( elem, type ) {
+ type = type || "fx";
+
+ var queue = jQuery.queue( elem, type ),
+ startLength = queue.length,
+ fn = queue.shift(),
+ hooks = jQuery._queueHooks( elem, type ),
+ next = function() {
+ jQuery.dequeue( elem, type );
+ };
+
+ // If the fx queue is dequeued, always remove the progress sentinel
+ if ( fn === "inprogress" ) {
+ fn = queue.shift();
+ startLength--;
+ }
+
+ if ( fn ) {
+
+ // Add a progress sentinel to prevent the fx queue from being
+ // automatically dequeued
+ if ( type === "fx" ) {
+ queue.unshift( "inprogress" );
+ }
+
+ // Clear up the last queue stop function
+ delete hooks.stop;
+ fn.call( elem, next, hooks );
+ }
+
+ if ( !startLength && hooks ) {
+ hooks.empty.fire();
+ }
+ },
+
+ // Not public - generate a queueHooks object, or return the current one
+ _queueHooks: function( elem, type ) {
+ var key = type + "queueHooks";
+ return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
+ empty: jQuery.Callbacks( "once memory" ).add( function() {
+ dataPriv.remove( elem, [ type + "queue", key ] );
+ } )
+ } );
+ }
+} );
+
+jQuery.fn.extend( {
+ queue: function( type, data ) {
+ var setter = 2;
+
+ if ( typeof type !== "string" ) {
+ data = type;
+ type = "fx";
+ setter--;
+ }
+
+ if ( arguments.length < setter ) {
+ return jQuery.queue( this[ 0 ], type );
+ }
+
+ return data === undefined ?
+ this :
+ this.each( function() {
+ var queue = jQuery.queue( this, type, data );
+
+ // Ensure a hooks for this queue
+ jQuery._queueHooks( this, type );
+
+ if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ dequeue: function( type ) {
+ return this.each( function() {
+ jQuery.dequeue( this, type );
+ } );
+ },
+ clearQueue: function( type ) {
+ return this.queue( type || "fx", [] );
+ },
+
+ // Get a promise resolved when queues of a certain type
+ // are emptied (fx is the type by default)
+ promise: function( type, obj ) {
+ var tmp,
+ count = 1,
+ defer = jQuery.Deferred(),
+ elements = this,
+ i = this.length,
+ resolve = function() {
+ if ( !( --count ) ) {
+ defer.resolveWith( elements, [ elements ] );
+ }
+ };
+
+ if ( typeof type !== "string" ) {
+ obj = type;
+ type = undefined;
+ }
+ type = type || "fx";
+
+ while ( i-- ) {
+ tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
+ if ( tmp && tmp.empty ) {
+ count++;
+ tmp.empty.add( resolve );
+ }
+ }
+ resolve();
+ return defer.promise( obj );
+ }
+} );
+var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
+
+var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
+
+
+var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
+
+var isHiddenWithinTree = function( elem, el ) {
+
+ // isHiddenWithinTree might be called from jQuery#filter function;
+ // in that case, element will be second argument
+ elem = el || elem;
+
+ // Inline style trumps all
+ return elem.style.display === "none" ||
+ elem.style.display === "" &&
+
+ // Otherwise, check computed style
+ // Support: Firefox <=43 - 45
+ // Disconnected elements can have computed display: none, so first confirm that elem is
+ // in the document.
+ jQuery.contains( elem.ownerDocument, elem ) &&
+
+ jQuery.css( elem, "display" ) === "none";
+ };
+
+var swap = function( elem, options, callback, args ) {
+ var ret, name,
+ old = {};
+
+ // Remember the old values, and insert the new ones
+ for ( name in options ) {
+ old[ name ] = elem.style[ name ];
+ elem.style[ name ] = options[ name ];
+ }
+
+ ret = callback.apply( elem, args || [] );
+
+ // Revert the old values
+ for ( name in options ) {
+ elem.style[ name ] = old[ name ];
+ }
+
+ return ret;
+};
+
+
+
+
+function adjustCSS( elem, prop, valueParts, tween ) {
+ var adjusted, scale,
+ maxIterations = 20,
+ currentValue = tween ?
+ function() {
+ return tween.cur();
+ } :
+ function() {
+ return jQuery.css( elem, prop, "" );
+ },
+ initial = currentValue(),
+ unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+ // Starting value computation is required for potential unit mismatches
+ initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
+ rcssNum.exec( jQuery.css( elem, prop ) );
+
+ if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
+
+ // Support: Firefox <=54
+ // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
+ initial = initial / 2;
+
+ // Trust units reported by jQuery.css
+ unit = unit || initialInUnit[ 3 ];
+
+ // Iteratively approximate from a nonzero starting point
+ initialInUnit = +initial || 1;
+
+ while ( maxIterations-- ) {
+
+ // Evaluate and update our best guess (doubling guesses that zero out).
+ // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
+ jQuery.style( elem, prop, initialInUnit + unit );
+ if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
+ maxIterations = 0;
+ }
+ initialInUnit = initialInUnit / scale;
+
+ }
+
+ initialInUnit = initialInUnit * 2;
+ jQuery.style( elem, prop, initialInUnit + unit );
+
+ // Make sure we update the tween properties later on
+ valueParts = valueParts || [];
+ }
+
+ if ( valueParts ) {
+ initialInUnit = +initialInUnit || +initial || 0;
+
+ // Apply relative offset (+=/-=) if specified
+ adjusted = valueParts[ 1 ] ?
+ initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+ +valueParts[ 2 ];
+ if ( tween ) {
+ tween.unit = unit;
+ tween.start = initialInUnit;
+ tween.end = adjusted;
+ }
+ }
+ return adjusted;
+}
+
+
+var defaultDisplayMap = {};
+
+function getDefaultDisplay( elem ) {
+ var temp,
+ doc = elem.ownerDocument,
+ nodeName = elem.nodeName,
+ display = defaultDisplayMap[ nodeName ];
+
+ if ( display ) {
+ return display;
+ }
+
+ temp = doc.body.appendChild( doc.createElement( nodeName ) );
+ display = jQuery.css( temp, "display" );
+
+ temp.parentNode.removeChild( temp );
+
+ if ( display === "none" ) {
+ display = "block";
+ }
+ defaultDisplayMap[ nodeName ] = display;
+
+ return display;
+}
+
+function showHide( elements, show ) {
+ var display, elem,
+ values = [],
+ index = 0,
+ length = elements.length;
+
+ // Determine new display value for elements that need to change
+ for ( ; index < length; index++ ) {
+ elem = elements[ index ];
+ if ( !elem.style ) {
+ continue;
+ }
+
+ display = elem.style.display;
+ if ( show ) {
+
+ // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
+ // check is required in this first loop unless we have a nonempty display value (either
+ // inline or about-to-be-restored)
+ if ( display === "none" ) {
+ values[ index ] = dataPriv.get( elem, "display" ) || null;
+ if ( !values[ index ] ) {
+ elem.style.display = "";
+ }
+ }
+ if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
+ values[ index ] = getDefaultDisplay( elem );
+ }
+ } else {
+ if ( display !== "none" ) {
+ values[ index ] = "none";
+
+ // Remember what we're overwriting
+ dataPriv.set( elem, "display", display );
+ }
+ }
+ }
+
+ // Set the display of the elements in a second loop to avoid constant reflow
+ for ( index = 0; index < length; index++ ) {
+ if ( values[ index ] != null ) {
+ elements[ index ].style.display = values[ index ];
+ }
+ }
+
+ return elements;
+}
+
+jQuery.fn.extend( {
+ show: function() {
+ return showHide( this, true );
+ },
+ hide: function() {
+ return showHide( this );
+ },
+ toggle: function( state ) {
+ if ( typeof state === "boolean" ) {
+ return state ? this.show() : this.hide();
+ }
+
+ return this.each( function() {
+ if ( isHiddenWithinTree( this ) ) {
+ jQuery( this ).show();
+ } else {
+ jQuery( this ).hide();
+ }
+ } );
+ }
+} );
+var rcheckableType = ( /^(?:checkbox|radio)$/i );
+
+var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
+
+var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
+
+
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+ // Support: IE <=9 only
+ option: [ 1, "<select multiple='multiple'>", "</select>" ],
+
+ // XHTML parsers do not magically insert elements in the
+ // same way that tag soup parsers do. So we cannot shorten
+ // this by omitting <tbody> or other required elements.
+ thead: [ 1, "<table>", "</table>" ],
+ col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+ tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+ td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+ _default: [ 0, "", "" ]
+};
+
+// Support: IE <=9 only
+wrapMap.optgroup = wrapMap.option;
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+
+function getAll( context, tag ) {
+
+ // Support: IE <=9 - 11 only
+ // Use typeof to avoid zero-argument method invocation on host objects (#15151)
+ var ret;
+
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ ret = context.getElementsByTagName( tag || "*" );
+
+ } else if ( typeof context.querySelectorAll !== "undefined" ) {
+ ret = context.querySelectorAll( tag || "*" );
+
+ } else {
+ ret = [];
+ }
+
+ if ( tag === undefined || tag && nodeName( context, tag ) ) {
+ return jQuery.merge( [ context ], ret );
+ }
+
+ return ret;
+}
+
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+ var i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ dataPriv.set(
+ elems[ i ],
+ "globalEval",
+ !refElements || dataPriv.get( refElements[ i ], "globalEval" )
+ );
+ }
+}
+
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+ var elem, tmp, tag, wrap, contains, j,
+ fragment = context.createDocumentFragment(),
+ nodes = [],
+ i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ elem = elems[ i ];
+
+ if ( elem || elem === 0 ) {
+
+ // Add nodes directly
+ if ( toType( elem ) === "object" ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+ // Convert non-html into a text node
+ } else if ( !rhtml.test( elem ) ) {
+ nodes.push( context.createTextNode( elem ) );
+
+ // Convert html into DOM nodes
+ } else {
+ tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+ // Deserialize a standard representation
+ tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+ wrap = wrapMap[ tag ] || wrapMap._default;
+ tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+ // Descend through wrappers to the right content
+ j = wrap[ 0 ];
+ while ( j-- ) {
+ tmp = tmp.lastChild;
+ }
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, tmp.childNodes );
+
+ // Remember the top-level container
+ tmp = fragment.firstChild;
+
+ // Ensure the created nodes are orphaned (#12392)
+ tmp.textContent = "";
+ }
+ }
+ }
+
+ // Remove wrapper from fragment
+ fragment.textContent = "";
+
+ i = 0;
+ while ( ( elem = nodes[ i++ ] ) ) {
+
+ // Skip elements already in the context collection (trac-4087)
+ if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+ if ( ignored ) {
+ ignored.push( elem );
+ }
+ continue;
+ }
+
+ contains = jQuery.contains( elem.ownerDocument, elem );
+
+ // Append to fragment
+ tmp = getAll( fragment.appendChild( elem ), "script" );
+
+ // Preserve script evaluation history
+ if ( contains ) {
+ setGlobalEval( tmp );
+ }
+
+ // Capture executables
+ if ( scripts ) {
+ j = 0;
+ while ( ( elem = tmp[ j++ ] ) ) {
+ if ( rscriptType.test( elem.type || "" ) ) {
+ scripts.push( elem );
+ }
+ }
+ }
+ }
+
+ return fragment;
+}
+
+
+( function() {
+ var fragment = document.createDocumentFragment(),
+ div = fragment.appendChild( document.createElement( "div" ) ),
+ input = document.createElement( "input" );
+
+ // Support: Android 4.0 - 4.3 only
+ // Check state lost if the name is set (#11217)
+ // Support: Windows Web Apps (WWA)
+ // `name` and `type` must use .setAttribute for WWA (#14901)
+ input.setAttribute( "type", "radio" );
+ input.setAttribute( "checked", "checked" );
+ input.setAttribute( "name", "t" );
+
+ div.appendChild( input );
+
+ // Support: Android <=4.1 only
+ // Older WebKit doesn't clone checked state correctly in fragments
+ support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+ // Support: IE <=11 only
+ // Make sure textarea (and checkbox) defaultValue is properly cloned
+ div.innerHTML = "<textarea>x</textarea>";
+ support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
+} )();
+var documentElement = document.documentElement;
+
+
+
+var
+ rkeyEvent = /^key/,
+ rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
+ rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
+
+function returnTrue() {
+ return true;
+}
+
+function returnFalse() {
+ return false;
+}
+
+// Support: IE <=9 only
+// See #13393 for more info
+function safeActiveElement() {
+ try {
+ return document.activeElement;
+ } catch ( err ) { }
+}
+
+function on( elem, types, selector, data, fn, one ) {
+ var origFn, type;
+
+ // Types can be a map of types/handlers
+ if ( typeof types === "object" ) {
+
+ // ( types-Object, selector, data )
+ if ( typeof selector !== "string" ) {
+
+ // ( types-Object, data )
+ data = data || selector;
+ selector = undefined;
+ }
+ for ( type in types ) {
+ on( elem, type, selector, data, types[ type ], one );
+ }
+ return elem;
+ }
+
+ if ( data == null && fn == null ) {
+
+ // ( types, fn )
+ fn = selector;
+ data = selector = undefined;
+ } else if ( fn == null ) {
+ if ( typeof selector === "string" ) {
+
+ // ( types, selector, fn )
+ fn = data;
+ data = undefined;
+ } else {
+
+ // ( types, data, fn )
+ fn = data;
+ data = selector;
+ selector = undefined;
+ }
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ } else if ( !fn ) {
+ return elem;
+ }
+
+ if ( one === 1 ) {
+ origFn = fn;
+ fn = function( event ) {
+
+ // Can use an empty set, since event contains the info
+ jQuery().off( event );
+ return origFn.apply( this, arguments );
+ };
+
+ // Use same guid so caller can remove using origFn
+ fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+ }
+ return elem.each( function() {
+ jQuery.event.add( this, types, fn, data, selector );
+ } );
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+ global: {},
+
+ add: function( elem, types, handler, data, selector ) {
+
+ var handleObjIn, eventHandle, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.get( elem );
+
+ // Don't attach events to noData or text/comment nodes (but allow plain objects)
+ if ( !elemData ) {
+ return;
+ }
+
+ // Caller can pass in an object of custom data in lieu of the handler
+ if ( handler.handler ) {
+ handleObjIn = handler;
+ handler = handleObjIn.handler;
+ selector = handleObjIn.selector;
+ }
+
+ // Ensure that invalid selectors throw exceptions at attach time
+ // Evaluate against documentElement in case elem is a non-element node (e.g., document)
+ if ( selector ) {
+ jQuery.find.matchesSelector( documentElement, selector );
+ }
+
+ // Make sure that the handler has a unique ID, used to find/remove it later
+ if ( !handler.guid ) {
+ handler.guid = jQuery.guid++;
+ }
+
+ // Init the element's event structure and main handler, if this is the first
+ if ( !( events = elemData.events ) ) {
+ events = elemData.events = {};
+ }
+ if ( !( eventHandle = elemData.handle ) ) {
+ eventHandle = elemData.handle = function( e ) {
+
+ // Discard the second event of a jQuery.event.trigger() and
+ // when an event is called after a page has unloaded
+ return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
+ jQuery.event.dispatch.apply( elem, arguments ) : undefined;
+ };
+ }
+
+ // Handle multiple events separated by a space
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // There *must* be a type, no attaching namespace-only handlers
+ if ( !type ) {
+ continue;
+ }
+
+ // If event changes its type, use the special event handlers for the changed type
+ special = jQuery.event.special[ type ] || {};
+
+ // If selector defined, determine special event api type, otherwise given type
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+
+ // Update special based on newly reset type
+ special = jQuery.event.special[ type ] || {};
+
+ // handleObj is passed to all event handlers
+ handleObj = jQuery.extend( {
+ type: type,
+ origType: origType,
+ data: data,
+ handler: handler,
+ guid: handler.guid,
+ selector: selector,
+ needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+ namespace: namespaces.join( "." )
+ }, handleObjIn );
+
+ // Init the event handler queue if we're the first
+ if ( !( handlers = events[ type ] ) ) {
+ handlers = events[ type ] = [];
+ handlers.delegateCount = 0;
+
+ // Only use addEventListener if the special events handler returns false
+ if ( !special.setup ||
+ special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+
+ if ( elem.addEventListener ) {
+ elem.addEventListener( type, eventHandle );
+ }
+ }
+ }
+
+ if ( special.add ) {
+ special.add.call( elem, handleObj );
+
+ if ( !handleObj.handler.guid ) {
+ handleObj.handler.guid = handler.guid;
+ }
+ }
+
+ // Add to the element's handler list, delegates in front
+ if ( selector ) {
+ handlers.splice( handlers.delegateCount++, 0, handleObj );
+ } else {
+ handlers.push( handleObj );
+ }
+
+ // Keep track of which events have ever been used, for event optimization
+ jQuery.event.global[ type ] = true;
+ }
+
+ },
+
+ // Detach an event or set of events from an element
+ remove: function( elem, types, handler, selector, mappedTypes ) {
+
+ var j, origCount, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
+
+ if ( !elemData || !( events = elemData.events ) ) {
+ return;
+ }
+
+ // Once for each type.namespace in types; type may be omitted
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // Unbind all events (on this namespace, if provided) for the element
+ if ( !type ) {
+ for ( type in events ) {
+ jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+ }
+ continue;
+ }
+
+ special = jQuery.event.special[ type ] || {};
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+ handlers = events[ type ] || [];
+ tmp = tmp[ 2 ] &&
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
+
+ // Remove matching events
+ origCount = j = handlers.length;
+ while ( j-- ) {
+ handleObj = handlers[ j ];
+
+ if ( ( mappedTypes || origType === handleObj.origType ) &&
+ ( !handler || handler.guid === handleObj.guid ) &&
+ ( !tmp || tmp.test( handleObj.namespace ) ) &&
+ ( !selector || selector === handleObj.selector ||
+ selector === "**" && handleObj.selector ) ) {
+ handlers.splice( j, 1 );
+
+ if ( handleObj.selector ) {
+ handlers.delegateCount--;
+ }
+ if ( special.remove ) {
+ special.remove.call( elem, handleObj );
+ }
+ }
+ }
+
+ // Remove generic event handler if we removed something and no more handlers exist
+ // (avoids potential for endless recursion during removal of special event handlers)
+ if ( origCount && !handlers.length ) {
+ if ( !special.teardown ||
+ special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+
+ jQuery.removeEvent( elem, type, elemData.handle );
+ }
+
+ delete events[ type ];
+ }
+ }
+
+ // Remove data and the expando if it's no longer used
+ if ( jQuery.isEmptyObject( events ) ) {
+ dataPriv.remove( elem, "handle events" );
+ }
+ },
+
+ dispatch: function( nativeEvent ) {
+
+ // Make a writable jQuery.Event from the native event object
+ var event = jQuery.event.fix( nativeEvent );
+
+ var i, j, ret, matched, handleObj, handlerQueue,
+ args = new Array( arguments.length ),
+ handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
+ special = jQuery.event.special[ event.type ] || {};
+
+ // Use the fix-ed jQuery.Event rather than the (read-only) native event
+ args[ 0 ] = event;
+
+ for ( i = 1; i < arguments.length; i++ ) {
+ args[ i ] = arguments[ i ];
+ }
+
+ event.delegateTarget = this;
+
+ // Call the preDispatch hook for the mapped type, and let it bail if desired
+ if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+ return;
+ }
+
+ // Determine handlers
+ handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+ // Run delegates first; they may want to stop propagation beneath us
+ i = 0;
+ while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
+ event.currentTarget = matched.elem;
+
+ j = 0;
+ while ( ( handleObj = matched.handlers[ j++ ] ) &&
+ !event.isImmediatePropagationStopped() ) {
+
+ // Triggered event must either 1) have no namespace, or 2) have namespace(s)
+ // a subset or equal to those in the bound event (both can have no namespace).
+ if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
+
+ event.handleObj = handleObj;
+ event.data = handleObj.data;
+
+ ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
+ handleObj.handler ).apply( matched.elem, args );
+
+ if ( ret !== undefined ) {
+ if ( ( event.result = ret ) === false ) {
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ }
+ }
+ }
+ }
+
+ // Call the postDispatch hook for the mapped type
+ if ( special.postDispatch ) {
+ special.postDispatch.call( this, event );
+ }
+
+ return event.result;
+ },
+
+ handlers: function( event, handlers ) {
+ var i, handleObj, sel, matchedHandlers, matchedSelectors,
+ handlerQueue = [],
+ delegateCount = handlers.delegateCount,
+ cur = event.target;
+
+ // Find delegate handlers
+ if ( delegateCount &&
+
+ // Support: IE <=9
+ // Black-hole SVG <use> instance trees (trac-13180)
+ cur.nodeType &&
+
+ // Support: Firefox <=42
+ // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
+ // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
+ // Support: IE 11 only
+ // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
+ !( event.type === "click" && event.button >= 1 ) ) {
+
+ for ( ; cur !== this; cur = cur.parentNode || this ) {
+
+ // Don't check non-elements (#13208)
+ // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+ if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
+ matchedHandlers = [];
+ matchedSelectors = {};
+ for ( i = 0; i < delegateCount; i++ ) {
+ handleObj = handlers[ i ];
+
+ // Don't conflict with Object.prototype properties (#13203)
+ sel = handleObj.selector + " ";
+
+ if ( matchedSelectors[ sel ] === undefined ) {
+ matchedSelectors[ sel ] = handleObj.needsContext ?
+ jQuery( sel, this ).index( cur ) > -1 :
+ jQuery.find( sel, this, null, [ cur ] ).length;
+ }
+ if ( matchedSelectors[ sel ] ) {
+ matchedHandlers.push( handleObj );
+ }
+ }
+ if ( matchedHandlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
+ }
+ }
+ }
+ }
+
+ // Add the remaining (directly-bound) handlers
+ cur = this;
+ if ( delegateCount < handlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
+ }
+
+ return handlerQueue;
+ },
+
+ addProp: function( name, hook ) {
+ Object.defineProperty( jQuery.Event.prototype, name, {
+ enumerable: true,
+ configurable: true,
+
+ get: isFunction( hook ) ?
+ function() {
+ if ( this.originalEvent ) {
+ return hook( this.originalEvent );
+ }
+ } :
+ function() {
+ if ( this.originalEvent ) {
+ return this.originalEvent[ name ];
+ }
+ },
+
+ set: function( value ) {
+ Object.defineProperty( this, name, {
+ enumerable: true,
+ configurable: true,
+ writable: true,
+ value: value
+ } );
+ }
+ } );
+ },
+
+ fix: function( originalEvent ) {
+ return originalEvent[ jQuery.expando ] ?
+ originalEvent :
+ new jQuery.Event( originalEvent );
+ },
+
+ special: {
+ load: {
+
+ // Prevent triggered image.load events from bubbling to window.load
+ noBubble: true
+ },
+ focus: {
+
+ // Fire native event if possible so blur/focus sequence is correct
+ trigger: function() {
+ if ( this !== safeActiveElement() && this.focus ) {
+ this.focus();
+ return false;
+ }
+ },
+ delegateType: "focusin"
+ },
+ blur: {
+ trigger: function() {
+ if ( this === safeActiveElement() && this.blur ) {
+ this.blur();
+ return false;
+ }
+ },
+ delegateType: "focusout"
+ },
+ click: {
+
+ // For checkbox, fire native event so checked state will be right
+ trigger: function() {
+ if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
+ this.click();
+ return false;
+ }
+ },
+
+ // For cross-browser consistency, don't fire native .click() on links
+ _default: function( event ) {
+ return nodeName( event.target, "a" );
+ }
+ },
+
+ beforeunload: {
+ postDispatch: function( event ) {
+
+ // Support: Firefox 20+
+ // Firefox doesn't alert if the returnValue field is not set.
+ if ( event.result !== undefined && event.originalEvent ) {
+ event.originalEvent.returnValue = event.result;
+ }
+ }
+ }
+ }
+};
+
+jQuery.removeEvent = function( elem, type, handle ) {
+
+ // This "if" is needed for plain objects
+ if ( elem.removeEventListener ) {
+ elem.removeEventListener( type, handle );
+ }
+};
+
+jQuery.Event = function( src, props ) {
+
+ // Allow instantiation without the 'new' keyword
+ if ( !( this instanceof jQuery.Event ) ) {
+ return new jQuery.Event( src, props );
+ }
+
+ // Event object
+ if ( src && src.type ) {
+ this.originalEvent = src;
+ this.type = src.type;
+
+ // Events bubbling up the document may have been marked as prevented
+ // by a handler lower down the tree; reflect the correct value.
+ this.isDefaultPrevented = src.defaultPrevented ||
+ src.defaultPrevented === undefined &&
+
+ // Support: Android <=2.3 only
+ src.returnValue === false ?
+ returnTrue :
+ returnFalse;
+
+ // Create target properties
+ // Support: Safari <=6 - 7 only
+ // Target should not be a text node (#504, #13143)
+ this.target = ( src.target && src.target.nodeType === 3 ) ?
+ src.target.parentNode :
+ src.target;
+
+ this.currentTarget = src.currentTarget;
+ this.relatedTarget = src.relatedTarget;
+
+ // Event type
+ } else {
+ this.type = src;
+ }
+
+ // Put explicitly provided properties onto the event object
+ if ( props ) {
+ jQuery.extend( this, props );
+ }
+
+ // Create a timestamp if incoming event doesn't have one
+ this.timeStamp = src && src.timeStamp || Date.now();
+
+ // Mark it as fixed
+ this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+ constructor: jQuery.Event,
+ isDefaultPrevented: returnFalse,
+ isPropagationStopped: returnFalse,
+ isImmediatePropagationStopped: returnFalse,
+ isSimulated: false,
+
+ preventDefault: function() {
+ var e = this.originalEvent;
+
+ this.isDefaultPrevented = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.preventDefault();
+ }
+ },
+ stopPropagation: function() {
+ var e = this.originalEvent;
+
+ this.isPropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopPropagation();
+ }
+ },
+ stopImmediatePropagation: function() {
+ var e = this.originalEvent;
+
+ this.isImmediatePropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopImmediatePropagation();
+ }
+
+ this.stopPropagation();
+ }
+};
+
+// Includes all common event props including KeyEvent and MouseEvent specific props
+jQuery.each( {
+ altKey: true,
+ bubbles: true,
+ cancelable: true,
+ changedTouches: true,
+ ctrlKey: true,
+ detail: true,
+ eventPhase: true,
+ metaKey: true,
+ pageX: true,
+ pageY: true,
+ shiftKey: true,
+ view: true,
+ "char": true,
+ charCode: true,
+ key: true,
+ keyCode: true,
+ button: true,
+ buttons: true,
+ clientX: true,
+ clientY: true,
+ offsetX: true,
+ offsetY: true,
+ pointerId: true,
+ pointerType: true,
+ screenX: true,
+ screenY: true,
+ targetTouches: true,
+ toElement: true,
+ touches: true,
+
+ which: function( event ) {
+ var button = event.button;
+
+ // Add which for key events
+ if ( event.which == null && rkeyEvent.test( event.type ) ) {
+ return event.charCode != null ? event.charCode : event.keyCode;
+ }
+
+ // Add which for click: 1 === left; 2 === middle; 3 === right
+ if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
+ if ( button & 1 ) {
+ return 1;
+ }
+
+ if ( button & 2 ) {
+ return 3;
+ }
+
+ if ( button & 4 ) {
+ return 2;
+ }
+
+ return 0;
+ }
+
+ return event.which;
+ }
+}, jQuery.event.addProp );
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+//
+// Support: Safari 7 only
+// Safari sends mouseenter too often; see:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
+// for the description of the bug (it existed in older Chrome versions as well).
+jQuery.each( {
+ mouseenter: "mouseover",
+ mouseleave: "mouseout",
+ pointerenter: "pointerover",
+ pointerleave: "pointerout"
+}, function( orig, fix ) {
+ jQuery.event.special[ orig ] = {
+ delegateType: fix,
+ bindType: fix,
+
+ handle: function( event ) {
+ var ret,
+ target = this,
+ related = event.relatedTarget,
+ handleObj = event.handleObj;
+
+ // For mouseenter/leave call the handler if related is outside the target.
+ // NB: No relatedTarget if the mouse left/entered the browser window
+ if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
+ event.type = handleObj.origType;
+ ret = handleObj.handler.apply( this, arguments );
+ event.type = fix;
+ }
+ return ret;
+ }
+ };
+} );
+
+jQuery.fn.extend( {
+
+ on: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn );
+ },
+ one: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn, 1 );
+ },
+ off: function( types, selector, fn ) {
+ var handleObj, type;
+ if ( types && types.preventDefault && types.handleObj ) {
+
+ // ( event ) dispatched jQuery.Event
+ handleObj = types.handleObj;
+ jQuery( types.delegateTarget ).off(
+ handleObj.namespace ?
+ handleObj.origType + "." + handleObj.namespace :
+ handleObj.origType,
+ handleObj.selector,
+ handleObj.handler
+ );
+ return this;
+ }
+ if ( typeof types === "object" ) {
+
+ // ( types-object [, selector] )
+ for ( type in types ) {
+ this.off( type, selector, types[ type ] );
+ }
+ return this;
+ }
+ if ( selector === false || typeof selector === "function" ) {
+
+ // ( types [, fn] )
+ fn = selector;
+ selector = undefined;
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ }
+ return this.each( function() {
+ jQuery.event.remove( this, types, fn, selector );
+ } );
+ }
+} );
+
+
+var
+
+ /* eslint-disable max-len */
+
+ // See https://github.com/eslint/eslint/issues/3229
+ rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
+
+ /* eslint-enable */
+
+ // Support: IE <=10 - 11, Edge 12 - 13 only
+ // In IE/Edge using regex groups here causes severe slowdowns.
+ // See https://connect.microsoft.com/IE/feedback/details/1736512/
+ rnoInnerhtml = /<script|<style|<link/i,
+
+ // checked="checked" or checked
+ rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+ rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
+
+// Prefer a tbody over its parent table for containing new rows
+function manipulationTarget( elem, content ) {
+ if ( nodeName( elem, "table" ) &&
+ nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+
+ return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
+ }
+
+ return elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+ elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
+ return elem;
+}
+function restoreScript( elem ) {
+ if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
+ elem.type = elem.type.slice( 5 );
+ } else {
+ elem.removeAttribute( "type" );
+ }
+
+ return elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+ var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
+
+ if ( dest.nodeType !== 1 ) {
+ return;
+ }
+
+ // 1. Copy private data: events, handlers, etc.
+ if ( dataPriv.hasData( src ) ) {
+ pdataOld = dataPriv.access( src );
+ pdataCur = dataPriv.set( dest, pdataOld );
+ events = pdataOld.events;
+
+ if ( events ) {
+ delete pdataCur.handle;
+ pdataCur.events = {};
+
+ for ( type in events ) {
+ for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( dest, type, events[ type ][ i ] );
+ }
+ }
+ }
+ }
+
+ // 2. Copy user data
+ if ( dataUser.hasData( src ) ) {
+ udataOld = dataUser.access( src );
+ udataCur = jQuery.extend( {}, udataOld );
+
+ dataUser.set( dest, udataCur );
+ }
+}
+
+// Fix IE bugs, see support tests
+function fixInput( src, dest ) {
+ var nodeName = dest.nodeName.toLowerCase();
+
+ // Fails to persist the checked state of a cloned checkbox or radio button.
+ if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
+ dest.checked = src.checked;
+
+ // Fails to return the selected option to the default selected state when cloning options
+ } else if ( nodeName === "input" || nodeName === "textarea" ) {
+ dest.defaultValue = src.defaultValue;
+ }
+}
+
+function domManip( collection, args, callback, ignored ) {
+
+ // Flatten any nested arrays
+ args = concat.apply( [], args );
+
+ var fragment, first, scripts, hasScripts, node, doc,
+ i = 0,
+ l = collection.length,
+ iNoClone = l - 1,
+ value = args[ 0 ],
+ valueIsFunction = isFunction( value );
+
+ // We can't cloneNode fragments that contain checked, in WebKit
+ if ( valueIsFunction ||
+ ( l > 1 && typeof value === "string" &&
+ !support.checkClone && rchecked.test( value ) ) ) {
+ return collection.each( function( index ) {
+ var self = collection.eq( index );
+ if ( valueIsFunction ) {
+ args[ 0 ] = value.call( this, index, self.html() );
+ }
+ domManip( self, args, callback, ignored );
+ } );
+ }
+
+ if ( l ) {
+ fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
+ first = fragment.firstChild;
+
+ if ( fragment.childNodes.length === 1 ) {
+ fragment = first;
+ }
+
+ // Require either new content or an interest in ignored elements to invoke the callback
+ if ( first || ignored ) {
+ scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+ hasScripts = scripts.length;
+
+ // Use the original fragment for the last item
+ // instead of the first because it can end up
+ // being emptied incorrectly in certain situations (#8070).
+ for ( ; i < l; i++ ) {
+ node = fragment;
+
+ if ( i !== iNoClone ) {
+ node = jQuery.clone( node, true, true );
+
+ // Keep references to cloned scripts for later restoration
+ if ( hasScripts ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( scripts, getAll( node, "script" ) );
+ }
+ }
+
+ callback.call( collection[ i ], node, i );
+ }
+
+ if ( hasScripts ) {
+ doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+ // Reenable scripts
+ jQuery.map( scripts, restoreScript );
+
+ // Evaluate executable scripts on first document insertion
+ for ( i = 0; i < hasScripts; i++ ) {
+ node = scripts[ i ];
+ if ( rscriptType.test( node.type || "" ) &&
+ !dataPriv.access( node, "globalEval" ) &&
+ jQuery.contains( doc, node ) ) {
+
+ if ( node.src && ( node.type || "" ).toLowerCase() !== "module" ) {
+
+ // Optional AJAX dependency, but won't run scripts if not present
+ if ( jQuery._evalUrl ) {
+ jQuery._evalUrl( node.src );
+ }
+ } else {
+ DOMEval( node.textContent.replace( rcleanScript, "" ), doc, node );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return collection;
+}
+
+function remove( elem, selector, keepData ) {
+ var node,
+ nodes = selector ? jQuery.filter( selector, elem ) : elem,
+ i = 0;
+
+ for ( ; ( node = nodes[ i ] ) != null; i++ ) {
+ if ( !keepData && node.nodeType === 1 ) {
+ jQuery.cleanData( getAll( node ) );
+ }
+
+ if ( node.parentNode ) {
+ if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
+ setGlobalEval( getAll( node, "script" ) );
+ }
+ node.parentNode.removeChild( node );
+ }
+ }
+
+ return elem;
+}
+
+jQuery.extend( {
+ htmlPrefilter: function( html ) {
+ return html.replace( rxhtmlTag, "<$1></$2>" );
+ },
+
+ clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+ var i, l, srcElements, destElements,
+ clone = elem.cloneNode( true ),
+ inPage = jQuery.contains( elem.ownerDocument, elem );
+
+ // Fix IE cloning issues
+ if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
+ !jQuery.isXMLDoc( elem ) ) {
+
+ // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
+ destElements = getAll( clone );
+ srcElements = getAll( elem );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ fixInput( srcElements[ i ], destElements[ i ] );
+ }
+ }
+
+ // Copy the events from the original to the clone
+ if ( dataAndEvents ) {
+ if ( deepDataAndEvents ) {
+ srcElements = srcElements || getAll( elem );
+ destElements = destElements || getAll( clone );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ cloneCopyEvent( srcElements[ i ], destElements[ i ] );
+ }
+ } else {
+ cloneCopyEvent( elem, clone );
+ }
+ }
+
+ // Preserve script evaluation history
+ destElements = getAll( clone, "script" );
+ if ( destElements.length > 0 ) {
+ setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+ }
+
+ // Return the cloned set
+ return clone;
+ },
+
+ cleanData: function( elems ) {
+ var data, elem, type,
+ special = jQuery.event.special,
+ i = 0;
+
+ for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
+ if ( acceptData( elem ) ) {
+ if ( ( data = elem[ dataPriv.expando ] ) ) {
+ if ( data.events ) {
+ for ( type in data.events ) {
+ if ( special[ type ] ) {
+ jQuery.event.remove( elem, type );
+
+ // This is a shortcut to avoid jQuery.event.remove's overhead
+ } else {
+ jQuery.removeEvent( elem, type, data.handle );
+ }
+ }
+ }
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataPriv.expando ] = undefined;
+ }
+ if ( elem[ dataUser.expando ] ) {
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataUser.expando ] = undefined;
+ }
+ }
+ }
+ }
+} );
+
+jQuery.fn.extend( {
+ detach: function( selector ) {
+ return remove( this, selector, true );
+ },
+
+ remove: function( selector ) {
+ return remove( this, selector );
+ },
+
+ text: function( value ) {
+ return access( this, function( value ) {
+ return value === undefined ?
+ jQuery.text( this ) :
+ this.empty().each( function() {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ this.textContent = value;
+ }
+ } );
+ }, null, value, arguments.length );
+ },
+
+ append: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.appendChild( elem );
+ }
+ } );
+ },
+
+ prepend: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.insertBefore( elem, target.firstChild );
+ }
+ } );
+ },
+
+ before: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this );
+ }
+ } );
+ },
+
+ after: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this.nextSibling );
+ }
+ } );
+ },
+
+ empty: function() {
+ var elem,
+ i = 0;
+
+ for ( ; ( elem = this[ i ] ) != null; i++ ) {
+ if ( elem.nodeType === 1 ) {
+
+ // Prevent memory leaks
+ jQuery.cleanData( getAll( elem, false ) );
+
+ // Remove any remaining nodes
+ elem.textContent = "";
+ }
+ }
+
+ return this;
+ },
+
+ clone: function( dataAndEvents, deepDataAndEvents ) {
+ dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+ deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+ return this.map( function() {
+ return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+ } );
+ },
+
+ html: function( value ) {
+ return access( this, function( value ) {
+ var elem = this[ 0 ] || {},
+ i = 0,
+ l = this.length;
+
+ if ( value === undefined && elem.nodeType === 1 ) {
+ return elem.innerHTML;
+ }
+
+ // See if we can take a shortcut and just use innerHTML
+ if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+ !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
+
+ value = jQuery.htmlPrefilter( value );
+
+ try {
+ for ( ; i < l; i++ ) {
+ elem = this[ i ] || {};
+
+ // Remove element nodes and prevent memory leaks
+ if ( elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem, false ) );
+ elem.innerHTML = value;
+ }
+ }
+
+ elem = 0;
+
+ // If using innerHTML throws an exception, use the fallback method
+ } catch ( e ) {}
+ }
+
+ if ( elem ) {
+ this.empty().append( value );
+ }
+ }, null, value, arguments.length );
+ },
+
+ replaceWith: function() {
+ var ignored = [];
+
+ // Make the changes, replacing each non-ignored context element with the new content
+ return domManip( this, arguments, function( elem ) {
+ var parent = this.parentNode;
+
+ if ( jQuery.inArray( this, ignored ) < 0 ) {
+ jQuery.cleanData( getAll( this ) );
+ if ( parent ) {
+ parent.replaceChild( elem, this );
+ }
+ }
+
+ // Force callback invocation
+ }, ignored );
+ }
+} );
+
+jQuery.each( {
+ appendTo: "append",
+ prependTo: "prepend",
+ insertBefore: "before",
+ insertAfter: "after",
+ replaceAll: "replaceWith"
+}, function( name, original ) {
+ jQuery.fn[ name ] = function( selector ) {
+ var elems,
+ ret = [],
+ insert = jQuery( selector ),
+ last = insert.length - 1,
+ i = 0;
+
+ for ( ; i <= last; i++ ) {
+ elems = i === last ? this : this.clone( true );
+ jQuery( insert[ i ] )[ original ]( elems );
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // .get() because push.apply(_, arraylike) throws on ancient WebKit
+ push.apply( ret, elems.get() );
+ }
+
+ return this.pushStack( ret );
+ };
+} );
+var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
+
+var getStyles = function( elem ) {
+
+ // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
+ // IE throws on elements created in popups
+ // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
+ var view = elem.ownerDocument.defaultView;
+
+ if ( !view || !view.opener ) {
+ view = window;
+ }
+
+ return view.getComputedStyle( elem );
+ };
+
+var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );
+
+
+
+( function() {
+
+ // Executing both pixelPosition & boxSizingReliable tests require only one layout
+ // so they're executed at the same time to save the second computation.
+ function computeStyleTests() {
+
+ // This is a singleton, we need to execute it only once
+ if ( !div ) {
+ return;
+ }
+
+ container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
+ "margin-top:1px;padding:0;border:0";
+ div.style.cssText =
+ "position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
+ "margin:auto;border:1px;padding:1px;" +
+ "width:60%;top:1%";
+ documentElement.appendChild( container ).appendChild( div );
+
+ var divStyle = window.getComputedStyle( div );
+ pixelPositionVal = divStyle.top !== "1%";
+
+ // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
+ reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;
+
+ // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
+ // Some styles come back with percentage values, even though they shouldn't
+ div.style.right = "60%";
+ pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;
+
+ // Support: IE 9 - 11 only
+ // Detect misreporting of content dimensions for box-sizing:border-box elements
+ boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;
+
+ // Support: IE 9 only
+ // Detect overflow:scroll screwiness (gh-3699)
+ div.style.position = "absolute";
+ scrollboxSizeVal = div.offsetWidth === 36 || "absolute";
+
+ documentElement.removeChild( container );
+
+ // Nullify the div so it wouldn't be stored in the memory and
+ // it will also be a sign that checks already performed
+ div = null;
+ }
+
+ function roundPixelMeasures( measure ) {
+ return Math.round( parseFloat( measure ) );
+ }
+
+ var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
+ reliableMarginLeftVal,
+ container = document.createElement( "div" ),
+ div = document.createElement( "div" );
+
+ // Finish early in limited (non-browser) environments
+ if ( !div.style ) {
+ return;
+ }
+
+ // Support: IE <=9 - 11 only
+ // Style of cloned element affects source element cloned (#8908)
+ div.style.backgroundClip = "content-box";
+ div.cloneNode( true ).style.backgroundClip = "";
+ support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+ jQuery.extend( support, {
+ boxSizingReliable: function() {
+ computeStyleTests();
+ return boxSizingReliableVal;
+ },
+ pixelBoxStyles: function() {
+ computeStyleTests();
+ return pixelBoxStylesVal;
+ },
+ pixelPosition: function() {
+ computeStyleTests();
+ return pixelPositionVal;
+ },
+ reliableMarginLeft: function() {
+ computeStyleTests();
+ return reliableMarginLeftVal;
+ },
+ scrollboxSize: function() {
+ computeStyleTests();
+ return scrollboxSizeVal;
+ }
+ } );
+} )();
+
+
+function curCSS( elem, name, computed ) {
+ var width, minWidth, maxWidth, ret,
+
+ // Support: Firefox 51+
+ // Retrieving style before computed somehow
+ // fixes an issue with getting wrong values
+ // on detached elements
+ style = elem.style;
+
+ computed = computed || getStyles( elem );
+
+ // getPropertyValue is needed for:
+ // .css('filter') (IE 9 only, #12537)
+ // .css('--customProperty) (#3144)
+ if ( computed ) {
+ ret = computed.getPropertyValue( name ) || computed[ name ];
+
+ if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+ ret = jQuery.style( elem, name );
+ }
+
+ // A tribute to the "awesome hack by Dean Edwards"
+ // Android Browser returns percentage for some values,
+ // but width seems to be reliably pixels.
+ // This is against the CSSOM draft spec:
+ // https://drafts.csswg.org/cssom/#resolved-values
+ if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
+
+ // Remember the original values
+ width = style.width;
+ minWidth = style.minWidth;
+ maxWidth = style.maxWidth;
+
+ // Put in the new values to get a computed value out
+ style.minWidth = style.maxWidth = style.width = ret;
+ ret = computed.width;
+
+ // Revert the changed values
+ style.width = width;
+ style.minWidth = minWidth;
+ style.maxWidth = maxWidth;
+ }
+ }
+
+ return ret !== undefined ?
+
+ // Support: IE <=9 - 11 only
+ // IE returns zIndex value as an integer.
+ ret + "" :
+ ret;
+}
+
+
+function addGetHookIf( conditionFn, hookFn ) {
+
+ // Define the hook, we'll check on the first run if it's really needed.
+ return {
+ get: function() {
+ if ( conditionFn() ) {
+
+ // Hook not needed (or it's not possible to use it due
+ // to missing dependency), remove it.
+ delete this.get;
+ return;
+ }
+
+ // Hook needed; redefine it so that the support test is not executed again.
+ return ( this.get = hookFn ).apply( this, arguments );
+ }
+ };
+}
+
+
+var
+
+ // Swappable if display is none or starts with table
+ // except "table", "table-cell", or "table-caption"
+ // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+ rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+ rcustomProp = /^--/,
+ cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+ cssNormalTransform = {
+ letterSpacing: "0",
+ fontWeight: "400"
+ },
+
+ cssPrefixes = [ "Webkit", "Moz", "ms" ],
+ emptyStyle = document.createElement( "div" ).style;
+
+// Return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( name ) {
+
+ // Shortcut for names that are not vendor prefixed
+ if ( name in emptyStyle ) {
+ return name;
+ }
+
+ // Check for vendor prefixed names
+ var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
+ i = cssPrefixes.length;
+
+ while ( i-- ) {
+ name = cssPrefixes[ i ] + capName;
+ if ( name in emptyStyle ) {
+ return name;
+ }
+ }
+}
+
+// Return a property mapped along what jQuery.cssProps suggests or to
+// a vendor prefixed property.
+function finalPropName( name ) {
+ var ret = jQuery.cssProps[ name ];
+ if ( !ret ) {
+ ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
+ }
+ return ret;
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+
+ // Any relative (+/-) values have already been
+ // normalized at this point
+ var matches = rcssNum.exec( value );
+ return matches ?
+
+ // Guard against undefined "subtract", e.g., when used as in cssHooks
+ Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
+ value;
+}
+
+function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
+ var i = dimension === "width" ? 1 : 0,
+ extra = 0,
+ delta = 0;
+
+ // Adjustment may not be necessary
+ if ( box === ( isBorderBox ? "border" : "content" ) ) {
+ return 0;
+ }
+
+ for ( ; i < 4; i += 2 ) {
+
+ // Both box models exclude margin
+ if ( box === "margin" ) {
+ delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
+ }
+
+ // If we get here with a content-box, we're seeking "padding" or "border" or "margin"
+ if ( !isBorderBox ) {
+
+ // Add padding
+ delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+ // For "border" or "margin", add border
+ if ( box !== "padding" ) {
+ delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+
+ // But still keep track of it otherwise
+ } else {
+ extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+
+ // If we get here with a border-box (content + padding + border), we're seeking "content" or
+ // "padding" or "margin"
+ } else {
+
+ // For "content", subtract padding
+ if ( box === "content" ) {
+ delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+ }
+
+ // For "content" or "padding", subtract border
+ if ( box !== "margin" ) {
+ delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ }
+ }
+
+ // Account for positive content-box scroll gutter when requested by providing computedVal
+ if ( !isBorderBox && computedVal >= 0 ) {
+
+ // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
+ // Assuming integer scroll gutter, subtract the rest and round down
+ delta += Math.max( 0, Math.ceil(
+ elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+ computedVal -
+ delta -
+ extra -
+ 0.5
+ ) );
+ }
+
+ return delta;
+}
+
+function getWidthOrHeight( elem, dimension, extra ) {
+
+ // Start with computed style
+ var styles = getStyles( elem ),
+ val = curCSS( elem, dimension, styles ),
+ isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ valueIsBorderBox = isBorderBox;
+
+ // Support: Firefox <=54
+ // Return a confounding non-pixel value or feign ignorance, as appropriate.
+ if ( rnumnonpx.test( val ) ) {
+ if ( !extra ) {
+ return val;
+ }
+ val = "auto";
+ }
+
+ // Check for style in case a browser which returns unreliable values
+ // for getComputedStyle silently falls back to the reliable elem.style
+ valueIsBorderBox = valueIsBorderBox &&
+ ( support.boxSizingReliable() || val === elem.style[ dimension ] );
+
+ // Fall back to offsetWidth/offsetHeight when value is "auto"
+ // This happens for inline elements with no explicit setting (gh-3571)
+ // Support: Android <=4.1 - 4.3 only
+ // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
+ if ( val === "auto" ||
+ !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) {
+
+ val = elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ];
+
+ // offsetWidth/offsetHeight provide border-box values
+ valueIsBorderBox = true;
+ }
+
+ // Normalize "" and auto
+ val = parseFloat( val ) || 0;
+
+ // Adjust for the element's box model
+ return ( val +
+ boxModelAdjustment(
+ elem,
+ dimension,
+ extra || ( isBorderBox ? "border" : "content" ),
+ valueIsBorderBox,
+ styles,
+
+ // Provide the current computed size to request scroll gutter calculation (gh-3589)
+ val
+ )
+ ) + "px";
+}
+
+jQuery.extend( {
+
+ // Add in style property hooks for overriding the default
+ // behavior of getting and setting a style property
+ cssHooks: {
+ opacity: {
+ get: function( elem, computed ) {
+ if ( computed ) {
+
+ // We should always get a number back from opacity
+ var ret = curCSS( elem, "opacity" );
+ return ret === "" ? "1" : ret;
+ }
+ }
+ }
+ },
+
+ // Don't automatically add "px" to these possibly-unitless properties
+ cssNumber: {
+ "animationIterationCount": true,
+ "columnCount": true,
+ "fillOpacity": true,
+ "flexGrow": true,
+ "flexShrink": true,
+ "fontWeight": true,
+ "lineHeight": true,
+ "opacity": true,
+ "order": true,
+ "orphans": true,
+ "widows": true,
+ "zIndex": true,
+ "zoom": true
+ },
+
+ // Add in properties whose names you wish to fix before
+ // setting or getting the value
+ cssProps: {},
+
+ // Get and set the style property on a DOM Node
+ style: function( elem, name, value, extra ) {
+
+ // Don't set styles on text and comment nodes
+ if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+ return;
+ }
+
+ // Make sure that we're working with the right name
+ var ret, type, hooks,
+ origName = camelCase( name ),
+ isCustomProp = rcustomProp.test( name ),
+ style = elem.style;
+
+ // Make sure that we're working with the right name. We don't
+ // want to query the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Gets hook for the prefixed version, then unprefixed version
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // Check if we're setting a value
+ if ( value !== undefined ) {
+ type = typeof value;
+
+ // Convert "+=" or "-=" to relative numbers (#7345)
+ if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
+ value = adjustCSS( elem, name, ret );
+
+ // Fixes bug #9237
+ type = "number";
+ }
+
+ // Make sure that null and NaN values aren't set (#7116)
+ if ( value == null || value !== value ) {
+ return;
+ }
+
+ // If a number was passed in, add the unit (except for certain CSS properties)
+ if ( type === "number" ) {
+ value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
+ }
+
+ // background-* props affect original clone's values
+ if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
+ style[ name ] = "inherit";
+ }
+
+ // If a hook was provided, use that value, otherwise just set the specified value
+ if ( !hooks || !( "set" in hooks ) ||
+ ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
+
+ if ( isCustomProp ) {
+ style.setProperty( name, value );
+ } else {
+ style[ name ] = value;
+ }
+ }
+
+ } else {
+
+ // If a hook was provided get the non-computed value from there
+ if ( hooks && "get" in hooks &&
+ ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
+
+ return ret;
+ }
+
+ // Otherwise just get the value from the style object
+ return style[ name ];
+ }
+ },
+
+ css: function( elem, name, extra, styles ) {
+ var val, num, hooks,
+ origName = camelCase( name ),
+ isCustomProp = rcustomProp.test( name );
+
+ // Make sure that we're working with the right name. We don't
+ // want to modify the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Try prefixed name followed by the unprefixed name
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // If a hook was provided get the computed value from there
+ if ( hooks && "get" in hooks ) {
+ val = hooks.get( elem, true, extra );
+ }
+
+ // Otherwise, if a way to get the computed value exists, use that
+ if ( val === undefined ) {
+ val = curCSS( elem, name, styles );
+ }
+
+ // Convert "normal" to computed value
+ if ( val === "normal" && name in cssNormalTransform ) {
+ val = cssNormalTransform[ name ];
+ }
+
+ // Make numeric if forced or a qualifier was provided and val looks numeric
+ if ( extra === "" || extra ) {
+ num = parseFloat( val );
+ return extra === true || isFinite( num ) ? num || 0 : val;
+ }
+
+ return val;
+ }
+} );
+
+jQuery.each( [ "height", "width" ], function( i, dimension ) {
+ jQuery.cssHooks[ dimension ] = {
+ get: function( elem, computed, extra ) {
+ if ( computed ) {
+
+ // Certain elements can have dimension info if we invisibly show them
+ // but it must have a current display style that would benefit
+ return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
+
+ // Support: Safari 8+
+ // Table columns in Safari have non-zero offsetWidth & zero
+ // getBoundingClientRect().width unless display is changed.
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a disconnected node
+ // in IE throws an error.
+ ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
+ swap( elem, cssShow, function() {
+ return getWidthOrHeight( elem, dimension, extra );
+ } ) :
+ getWidthOrHeight( elem, dimension, extra );
+ }
+ },
+
+ set: function( elem, value, extra ) {
+ var matches,
+ styles = getStyles( elem ),
+ isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ subtract = extra && boxModelAdjustment(
+ elem,
+ dimension,
+ extra,
+ isBorderBox,
+ styles
+ );
+
+ // Account for unreliable border-box dimensions by comparing offset* to computed and
+ // faking a content-box to get border and padding (gh-3699)
+ if ( isBorderBox && support.scrollboxSize() === styles.position ) {
+ subtract -= Math.ceil(
+ elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+ parseFloat( styles[ dimension ] ) -
+ boxModelAdjustment( elem, dimension, "border", false, styles ) -
+ 0.5
+ );
+ }
+
+ // Convert to pixels if value adjustment is needed
+ if ( subtract && ( matches = rcssNum.exec( value ) ) &&
+ ( matches[ 3 ] || "px" ) !== "px" ) {
+
+ elem.style[ dimension ] = value;
+ value = jQuery.css( elem, dimension );
+ }
+
+ return setPositiveNumber( elem, value, subtract );
+ }
+ };
+} );
+
+jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
+ function( elem, computed ) {
+ if ( computed ) {
+ return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
+ elem.getBoundingClientRect().left -
+ swap( elem, { marginLeft: 0 }, function() {
+ return elem.getBoundingClientRect().left;
+ } )
+ ) + "px";
+ }
+ }
+);
+
+// These hooks are used by animate to expand properties
+jQuery.each( {
+ margin: "",
+ padding: "",
+ border: "Width"
+}, function( prefix, suffix ) {
+ jQuery.cssHooks[ prefix + suffix ] = {
+ expand: function( value ) {
+ var i = 0,
+ expanded = {},
+
+ // Assumes a single number if not a string
+ parts = typeof value === "string" ? value.split( " " ) : [ value ];
+
+ for ( ; i < 4; i++ ) {
+ expanded[ prefix + cssExpand[ i ] + suffix ] =
+ parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+ }
+
+ return expanded;
+ }
+ };
+
+ if ( prefix !== "margin" ) {
+ jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+ }
+} );
+
+jQuery.fn.extend( {
+ css: function( name, value ) {
+ return access( this, function( elem, name, value ) {
+ var styles, len,
+ map = {},
+ i = 0;
+
+ if ( Array.isArray( name ) ) {
+ styles = getStyles( elem );
+ len = name.length;
+
+ for ( ; i < len; i++ ) {
+ map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+ }
+
+ return map;
+ }
+
+ return value !== undefined ?
+ jQuery.style( elem, name, value ) :
+ jQuery.css( elem, name );
+ }, name, value, arguments.length > 1 );
+ }
+} );
+
+
+function Tween( elem, options, prop, end, easing ) {
+ return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+ constructor: Tween,
+ init: function( elem, options, prop, end, easing, unit ) {
+ this.elem = elem;
+ this.prop = prop;
+ this.easing = easing || jQuery.easing._default;
+ this.options = options;
+ this.start = this.now = this.cur();
+ this.end = end;
+ this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+ },
+ cur: function() {
+ var hooks = Tween.propHooks[ this.prop ];
+
+ return hooks && hooks.get ?
+ hooks.get( this ) :
+ Tween.propHooks._default.get( this );
+ },
+ run: function( percent ) {
+ var eased,
+ hooks = Tween.propHooks[ this.prop ];
+
+ if ( this.options.duration ) {
+ this.pos = eased = jQuery.easing[ this.easing ](
+ percent, this.options.duration * percent, 0, 1, this.options.duration
+ );
+ } else {
+ this.pos = eased = percent;
+ }
+ this.now = ( this.end - this.start ) * eased + this.start;
+
+ if ( this.options.step ) {
+ this.options.step.call( this.elem, this.now, this );
+ }
+
+ if ( hooks && hooks.set ) {
+ hooks.set( this );
+ } else {
+ Tween.propHooks._default.set( this );
+ }
+ return this;
+ }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+ _default: {
+ get: function( tween ) {
+ var result;
+
+ // Use a property on the element directly when it is not a DOM element,
+ // or when there is no matching style property that exists.
+ if ( tween.elem.nodeType !== 1 ||
+ tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
+ return tween.elem[ tween.prop ];
+ }
+
+ // Passing an empty string as a 3rd parameter to .css will automatically
+ // attempt a parseFloat and fallback to a string if the parse fails.
+ // Simple values such as "10px" are parsed to Float;
+ // complex values such as "rotate(1rad)" are returned as-is.
+ result = jQuery.css( tween.elem, tween.prop, "" );
+
+ // Empty strings, null, undefined and "auto" are converted to 0.
+ return !result || result === "auto" ? 0 : result;
+ },
+ set: function( tween ) {
+
+ // Use step hook for back compat.
+ // Use cssHook if its there.
+ // Use .style if available and use plain properties where available.
+ if ( jQuery.fx.step[ tween.prop ] ) {
+ jQuery.fx.step[ tween.prop ]( tween );
+ } else if ( tween.elem.nodeType === 1 &&
+ ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
+ jQuery.cssHooks[ tween.prop ] ) ) {
+ jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+ } else {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+ }
+};
+
+// Support: IE <=9 only
+// Panic based approach to setting things on disconnected nodes
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+ set: function( tween ) {
+ if ( tween.elem.nodeType && tween.elem.parentNode ) {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+};
+
+jQuery.easing = {
+ linear: function( p ) {
+ return p;
+ },
+ swing: function( p ) {
+ return 0.5 - Math.cos( p * Math.PI ) / 2;
+ },
+ _default: "swing"
+};
+
+jQuery.fx = Tween.prototype.init;
+
+// Back compat <1.8 extension point
+jQuery.fx.step = {};
+
+
+
+
+var
+ fxNow, inProgress,
+ rfxtypes = /^(?:toggle|show|hide)$/,
+ rrun = /queueHooks$/;
+
+function schedule() {
+ if ( inProgress ) {
+ if ( document.hidden === false && window.requestAnimationFrame ) {
+ window.requestAnimationFrame( schedule );
+ } else {
+ window.setTimeout( schedule, jQuery.fx.interval );
+ }
+
+ jQuery.fx.tick();
+ }
+}
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+ window.setTimeout( function() {
+ fxNow = undefined;
+ } );
+ return ( fxNow = Date.now() );
+}
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+ var which,
+ i = 0,
+ attrs = { height: type };
+
+ // If we include width, step value is 1 to do all cssExpand values,
+ // otherwise step value is 2 to skip over Left and Right
+ includeWidth = includeWidth ? 1 : 0;
+ for ( ; i < 4; i += 2 - includeWidth ) {
+ which = cssExpand[ i ];
+ attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+ }
+
+ if ( includeWidth ) {
+ attrs.opacity = attrs.width = type;
+ }
+
+ return attrs;
+}
+
+function createTween( value, prop, animation ) {
+ var tween,
+ collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
+ index = 0,
+ length = collection.length;
+ for ( ; index < length; index++ ) {
+ if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
+
+ // We're done with this property
+ return tween;
+ }
+ }
+}
+
+function defaultPrefilter( elem, props, opts ) {
+ var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
+ isBox = "width" in props || "height" in props,
+ anim = this,
+ orig = {},
+ style = elem.style,
+ hidden = elem.nodeType && isHiddenWithinTree( elem ),
+ dataShow = dataPriv.get( elem, "fxshow" );
+
+ // Queue-skipping animations hijack the fx hooks
+ if ( !opts.queue ) {
+ hooks = jQuery._queueHooks( elem, "fx" );
+ if ( hooks.unqueued == null ) {
+ hooks.unqueued = 0;
+ oldfire = hooks.empty.fire;
+ hooks.empty.fire = function() {
+ if ( !hooks.unqueued ) {
+ oldfire();
+ }
+ };
+ }
+ hooks.unqueued++;
+
+ anim.always( function() {
+
+ // Ensure the complete handler is called before this completes
+ anim.always( function() {
+ hooks.unqueued--;
+ if ( !jQuery.queue( elem, "fx" ).length ) {
+ hooks.empty.fire();
+ }
+ } );
+ } );
+ }
+
+ // Detect show/hide animations
+ for ( prop in props ) {
+ value = props[ prop ];
+ if ( rfxtypes.test( value ) ) {
+ delete props[ prop ];
+ toggle = toggle || value === "toggle";
+ if ( value === ( hidden ? "hide" : "show" ) ) {
+
+ // Pretend to be hidden if this is a "show" and
+ // there is still data from a stopped show/hide
+ if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
+ hidden = true;
+
+ // Ignore all other no-op show/hide data
+ } else {
+ continue;
+ }
+ }
+ orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+ }
+ }
+
+ // Bail out if this is a no-op like .hide().hide()
+ propTween = !jQuery.isEmptyObject( props );
+ if ( !propTween && jQuery.isEmptyObject( orig ) ) {
+ return;
+ }
+
+ // Restrict "overflow" and "display" styles during box animations
+ if ( isBox && elem.nodeType === 1 ) {
+
+ // Support: IE <=9 - 11, Edge 12 - 15
+ // Record all 3 overflow attributes because IE does not infer the shorthand
+ // from identically-valued overflowX and overflowY and Edge just mirrors
+ // the overflowX value there.
+ opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+ // Identify a display type, preferring old show/hide data over the CSS cascade
+ restoreDisplay = dataShow && dataShow.display;
+ if ( restoreDisplay == null ) {
+ restoreDisplay = dataPriv.get( elem, "display" );
+ }
+ display = jQuery.css( elem, "display" );
+ if ( display === "none" ) {
+ if ( restoreDisplay ) {
+ display = restoreDisplay;
+ } else {
+
+ // Get nonempty value(s) by temporarily forcing visibility
+ showHide( [ elem ], true );
+ restoreDisplay = elem.style.display || restoreDisplay;
+ display = jQuery.css( elem, "display" );
+ showHide( [ elem ] );
+ }
+ }
+
+ // Animate inline elements as inline-block
+ if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
+ if ( jQuery.css( elem, "float" ) === "none" ) {
+
+ // Restore the original display value at the end of pure show/hide animations
+ if ( !propTween ) {
+ anim.done( function() {
+ style.display = restoreDisplay;
+ } );
+ if ( restoreDisplay == null ) {
+ display = style.display;
+ restoreDisplay = display === "none" ? "" : display;
+ }
+ }
+ style.display = "inline-block";
+ }
+ }
+ }
+
+ if ( opts.overflow ) {
+ style.overflow = "hidden";
+ anim.always( function() {
+ style.overflow = opts.overflow[ 0 ];
+ style.overflowX = opts.overflow[ 1 ];
+ style.overflowY = opts.overflow[ 2 ];
+ } );
+ }
+
+ // Implement show/hide animations
+ propTween = false;
+ for ( prop in orig ) {
+
+ // General show/hide setup for this element animation
+ if ( !propTween ) {
+ if ( dataShow ) {
+ if ( "hidden" in dataShow ) {
+ hidden = dataShow.hidden;
+ }
+ } else {
+ dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
+ }
+
+ // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
+ if ( toggle ) {
+ dataShow.hidden = !hidden;
+ }
+
+ // Show elements before animating them
+ if ( hidden ) {
+ showHide( [ elem ], true );
+ }
+
+ /* eslint-disable no-loop-func */
+
+ anim.done( function() {
+
+ /* eslint-enable no-loop-func */
+
+ // The final step of a "hide" animation is actually hiding the element
+ if ( !hidden ) {
+ showHide( [ elem ] );
+ }
+ dataPriv.remove( elem, "fxshow" );
+ for ( prop in orig ) {
+ jQuery.style( elem, prop, orig[ prop ] );
+ }
+ } );
+ }
+
+ // Per-property setup
+ propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+ if ( !( prop in dataShow ) ) {
+ dataShow[ prop ] = propTween.start;
+ if ( hidden ) {
+ propTween.end = propTween.start;
+ propTween.start = 0;
+ }
+ }
+ }
+}
+
+function propFilter( props, specialEasing ) {
+ var index, name, easing, value, hooks;
+
+ // camelCase, specialEasing and expand cssHook pass
+ for ( index in props ) {
+ name = camelCase( index );
+ easing = specialEasing[ name ];
+ value = props[ index ];
+ if ( Array.isArray( value ) ) {
+ easing = value[ 1 ];
+ value = props[ index ] = value[ 0 ];
+ }
+
+ if ( index !== name ) {
+ props[ name ] = value;
+ delete props[ index ];
+ }
+
+ hooks = jQuery.cssHooks[ name ];
+ if ( hooks && "expand" in hooks ) {
+ value = hooks.expand( value );
+ delete props[ name ];
+
+ // Not quite $.extend, this won't overwrite existing keys.
+ // Reusing 'index' because we have the correct "name"
+ for ( index in value ) {
+ if ( !( index in props ) ) {
+ props[ index ] = value[ index ];
+ specialEasing[ index ] = easing;
+ }
+ }
+ } else {
+ specialEasing[ name ] = easing;
+ }
+ }
+}
+
+function Animation( elem, properties, options ) {
+ var result,
+ stopped,
+ index = 0,
+ length = Animation.prefilters.length,
+ deferred = jQuery.Deferred().always( function() {
+
+ // Don't match elem in the :animated selector
+ delete tick.elem;
+ } ),
+ tick = function() {
+ if ( stopped ) {
+ return false;
+ }
+ var currentTime = fxNow || createFxNow(),
+ remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+
+ // Support: Android 2.3 only
+ // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
+ temp = remaining / animation.duration || 0,
+ percent = 1 - temp,
+ index = 0,
+ length = animation.tweens.length;
+
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( percent );
+ }
+
+ deferred.notifyWith( elem, [ animation, percent, remaining ] );
+
+ // If there's more to do, yield
+ if ( percent < 1 && length ) {
+ return remaining;
+ }
+
+ // If this was an empty animation, synthesize a final progress notification
+ if ( !length ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ }
+
+ // Resolve the animation and report its conclusion
+ deferred.resolveWith( elem, [ animation ] );
+ return false;
+ },
+ animation = deferred.promise( {
+ elem: elem,
+ props: jQuery.extend( {}, properties ),
+ opts: jQuery.extend( true, {
+ specialEasing: {},
+ easing: jQuery.easing._default
+ }, options ),
+ originalProperties: properties,
+ originalOptions: options,
+ startTime: fxNow || createFxNow(),
+ duration: options.duration,
+ tweens: [],
+ createTween: function( prop, end ) {
+ var tween = jQuery.Tween( elem, animation.opts, prop, end,
+ animation.opts.specialEasing[ prop ] || animation.opts.easing );
+ animation.tweens.push( tween );
+ return tween;
+ },
+ stop: function( gotoEnd ) {
+ var index = 0,
+
+ // If we are going to the end, we want to run all the tweens
+ // otherwise we skip this part
+ length = gotoEnd ? animation.tweens.length : 0;
+ if ( stopped ) {
+ return this;
+ }
+ stopped = true;
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( 1 );
+ }
+
+ // Resolve when we played the last frame; otherwise, reject
+ if ( gotoEnd ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ deferred.resolveWith( elem, [ animation, gotoEnd ] );
+ } else {
+ deferred.rejectWith( elem, [ animation, gotoEnd ] );
+ }
+ return this;
+ }
+ } ),
+ props = animation.props;
+
+ propFilter( props, animation.opts.specialEasing );
+
+ for ( ; index < length; index++ ) {
+ result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
+ if ( result ) {
+ if ( isFunction( result.stop ) ) {
+ jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
+ result.stop.bind( result );
+ }
+ return result;
+ }
+ }
+
+ jQuery.map( props, createTween, animation );
+
+ if ( isFunction( animation.opts.start ) ) {
+ animation.opts.start.call( elem, animation );
+ }
+
+ // Attach callbacks from options
+ animation
+ .progress( animation.opts.progress )
+ .done( animation.opts.done, animation.opts.complete )
+ .fail( animation.opts.fail )
+ .always( animation.opts.always );
+
+ jQuery.fx.timer(
+ jQuery.extend( tick, {
+ elem: elem,
+ anim: animation,
+ queue: animation.opts.queue
+ } )
+ );
+
+ return animation;
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+ tweeners: {
+ "*": [ function( prop, value ) {
+ var tween = this.createTween( prop, value );
+ adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
+ return tween;
+ } ]
+ },
+
+ tweener: function( props, callback ) {
+ if ( isFunction( props ) ) {
+ callback = props;
+ props = [ "*" ];
+ } else {
+ props = props.match( rnothtmlwhite );
+ }
+
+ var prop,
+ index = 0,
+ length = props.length;
+
+ for ( ; index < length; index++ ) {
+ prop = props[ index ];
+ Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
+ Animation.tweeners[ prop ].unshift( callback );
+ }
+ },
+
+ prefilters: [ defaultPrefilter ],
+
+ prefilter: function( callback, prepend ) {
+ if ( prepend ) {
+ Animation.prefilters.unshift( callback );
+ } else {
+ Animation.prefilters.push( callback );
+ }
+ }
+} );
+
+jQuery.speed = function( speed, easing, fn ) {
+ var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+ complete: fn || !fn && easing ||
+ isFunction( speed ) && speed,
+ duration: speed,
+ easing: fn && easing || easing && !isFunction( easing ) && easing
+ };
+
+ // Go to the end state if fx are off
+ if ( jQuery.fx.off ) {
+ opt.duration = 0;
+
+ } else {
+ if ( typeof opt.duration !== "number" ) {
+ if ( opt.duration in jQuery.fx.speeds ) {
+ opt.duration = jQuery.fx.speeds[ opt.duration ];
+
+ } else {
+ opt.duration = jQuery.fx.speeds._default;
+ }
+ }
+ }
+
+ // Normalize opt.queue - true/undefined/null -> "fx"
+ if ( opt.queue == null || opt.queue === true ) {
+ opt.queue = "fx";
+ }
+
+ // Queueing
+ opt.old = opt.complete;
+
+ opt.complete = function() {
+ if ( isFunction( opt.old ) ) {
+ opt.old.call( this );
+ }
+
+ if ( opt.queue ) {
+ jQuery.dequeue( this, opt.queue );
+ }
+ };
+
+ return opt;
+};
+
+jQuery.fn.extend( {
+ fadeTo: function( speed, to, easing, callback ) {
+
+ // Show any hidden elements after setting opacity to 0
+ return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
+
+ // Animate to the value specified
+ .end().animate( { opacity: to }, speed, easing, callback );
+ },
+ animate: function( prop, speed, easing, callback ) {
+ var empty = jQuery.isEmptyObject( prop ),
+ optall = jQuery.speed( speed, easing, callback ),
+ doAnimation = function() {
+
+ // Operate on a copy of prop so per-property easing won't be lost
+ var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+ // Empty animations, or finishing resolves immediately
+ if ( empty || dataPriv.get( this, "finish" ) ) {
+ anim.stop( true );
+ }
+ };
+ doAnimation.finish = doAnimation;
+
+ return empty || optall.queue === false ?
+ this.each( doAnimation ) :
+ this.queue( optall.queue, doAnimation );
+ },
+ stop: function( type, clearQueue, gotoEnd ) {
+ var stopQueue = function( hooks ) {
+ var stop = hooks.stop;
+ delete hooks.stop;
+ stop( gotoEnd );
+ };
+
+ if ( typeof type !== "string" ) {
+ gotoEnd = clearQueue;
+ clearQueue = type;
+ type = undefined;
+ }
+ if ( clearQueue && type !== false ) {
+ this.queue( type || "fx", [] );
+ }
+
+ return this.each( function() {
+ var dequeue = true,
+ index = type != null && type + "queueHooks",
+ timers = jQuery.timers,
+ data = dataPriv.get( this );
+
+ if ( index ) {
+ if ( data[ index ] && data[ index ].stop ) {
+ stopQueue( data[ index ] );
+ }
+ } else {
+ for ( index in data ) {
+ if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+ stopQueue( data[ index ] );
+ }
+ }
+ }
+
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this &&
+ ( type == null || timers[ index ].queue === type ) ) {
+
+ timers[ index ].anim.stop( gotoEnd );
+ dequeue = false;
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Start the next in the queue if the last step wasn't forced.
+ // Timers currently will call their complete callbacks, which
+ // will dequeue but only if they were gotoEnd.
+ if ( dequeue || !gotoEnd ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ finish: function( type ) {
+ if ( type !== false ) {
+ type = type || "fx";
+ }
+ return this.each( function() {
+ var index,
+ data = dataPriv.get( this ),
+ queue = data[ type + "queue" ],
+ hooks = data[ type + "queueHooks" ],
+ timers = jQuery.timers,
+ length = queue ? queue.length : 0;
+
+ // Enable finishing flag on private data
+ data.finish = true;
+
+ // Empty the queue first
+ jQuery.queue( this, type, [] );
+
+ if ( hooks && hooks.stop ) {
+ hooks.stop.call( this, true );
+ }
+
+ // Look for any active animations, and finish them
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+ timers[ index ].anim.stop( true );
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Look for any animations in the old queue and finish them
+ for ( index = 0; index < length; index++ ) {
+ if ( queue[ index ] && queue[ index ].finish ) {
+ queue[ index ].finish.call( this );
+ }
+ }
+
+ // Turn off finishing flag
+ delete data.finish;
+ } );
+ }
+} );
+
+jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
+ var cssFn = jQuery.fn[ name ];
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return speed == null || typeof speed === "boolean" ?
+ cssFn.apply( this, arguments ) :
+ this.animate( genFx( name, true ), speed, easing, callback );
+ };
+} );
+
+// Generate shortcuts for custom animations
+jQuery.each( {
+ slideDown: genFx( "show" ),
+ slideUp: genFx( "hide" ),
+ slideToggle: genFx( "toggle" ),
+ fadeIn: { opacity: "show" },
+ fadeOut: { opacity: "hide" },
+ fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return this.animate( props, speed, easing, callback );
+ };
+} );
+
+jQuery.timers = [];
+jQuery.fx.tick = function() {
+ var timer,
+ i = 0,
+ timers = jQuery.timers;
+
+ fxNow = Date.now();
+
+ for ( ; i < timers.length; i++ ) {
+ timer = timers[ i ];
+
+ // Run the timer and safely remove it when done (allowing for external removal)
+ if ( !timer() && timers[ i ] === timer ) {
+ timers.splice( i--, 1 );
+ }
+ }
+
+ if ( !timers.length ) {
+ jQuery.fx.stop();
+ }
+ fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+ jQuery.timers.push( timer );
+ jQuery.fx.start();
+};
+
+jQuery.fx.interval = 13;
+jQuery.fx.start = function() {
+ if ( inProgress ) {
+ return;
+ }
+
+ inProgress = true;
+ schedule();
+};
+
+jQuery.fx.stop = function() {
+ inProgress = null;
+};
+
+jQuery.fx.speeds = {
+ slow: 600,
+ fast: 200,
+
+ // Default speed
+ _default: 400
+};
+
+
+// Based off of the plugin by Clint Helfers, with permission.
+// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
+jQuery.fn.delay = function( time, type ) {
+ time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+ type = type || "fx";
+
+ return this.queue( type, function( next, hooks ) {
+ var timeout = window.setTimeout( next, time );
+ hooks.stop = function() {
+ window.clearTimeout( timeout );
+ };
+ } );
+};
+
+
+( function() {
+ var input = document.createElement( "input" ),
+ select = document.createElement( "select" ),
+ opt = select.appendChild( document.createElement( "option" ) );
+
+ input.type = "checkbox";
+
+ // Support: Android <=4.3 only
+ // Default value for a checkbox should be "on"
+ support.checkOn = input.value !== "";
+
+ // Support: IE <=11 only
+ // Must access selectedIndex to make default options select
+ support.optSelected = opt.selected;
+
+ // Support: IE <=11 only
+ // An input loses its value after becoming a radio
+ input = document.createElement( "input" );
+ input.value = "t";
+ input.type = "radio";
+ support.radioValue = input.value === "t";
+} )();
+
+
+var boolHook,
+ attrHandle = jQuery.expr.attrHandle;
+
+jQuery.fn.extend( {
+ attr: function( name, value ) {
+ return access( this, jQuery.attr, name, value, arguments.length > 1 );
+ },
+
+ removeAttr: function( name ) {
+ return this.each( function() {
+ jQuery.removeAttr( this, name );
+ } );
+ }
+} );
+
+jQuery.extend( {
+ attr: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set attributes on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ // Fallback to prop when attributes are not supported
+ if ( typeof elem.getAttribute === "undefined" ) {
+ return jQuery.prop( elem, name, value );
+ }
+
+ // Attribute hooks are determined by the lowercase version
+ // Grab necessary hook if one is defined
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+ hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
+ ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
+ }
+
+ if ( value !== undefined ) {
+ if ( value === null ) {
+ jQuery.removeAttr( elem, name );
+ return;
+ }
+
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ elem.setAttribute( name, value + "" );
+ return value;
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ ret = jQuery.find.attr( elem, name );
+
+ // Non-existent attributes return null, we normalize to undefined
+ return ret == null ? undefined : ret;
+ },
+
+ attrHooks: {
+ type: {
+ set: function( elem, value ) {
+ if ( !support.radioValue && value === "radio" &&
+ nodeName( elem, "input" ) ) {
+ var val = elem.value;
+ elem.setAttribute( "type", value );
+ if ( val ) {
+ elem.value = val;
+ }
+ return value;
+ }
+ }
+ }
+ },
+
+ removeAttr: function( elem, value ) {
+ var name,
+ i = 0,
+
+ // Attribute names can contain non-HTML whitespace characters
+ // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
+ attrNames = value && value.match( rnothtmlwhite );
+
+ if ( attrNames && elem.nodeType === 1 ) {
+ while ( ( name = attrNames[ i++ ] ) ) {
+ elem.removeAttribute( name );
+ }
+ }
+ }
+} );
+
+// Hooks for boolean attributes
+boolHook = {
+ set: function( elem, value, name ) {
+ if ( value === false ) {
+
+ // Remove boolean attributes when set to false
+ jQuery.removeAttr( elem, name );
+ } else {
+ elem.setAttribute( name, name );
+ }
+ return name;
+ }
+};
+
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
+ var getter = attrHandle[ name ] || jQuery.find.attr;
+
+ attrHandle[ name ] = function( elem, name, isXML ) {
+ var ret, handle,
+ lowercaseName = name.toLowerCase();
+
+ if ( !isXML ) {
+
+ // Avoid an infinite loop by temporarily removing this function from the getter
+ handle = attrHandle[ lowercaseName ];
+ attrHandle[ lowercaseName ] = ret;
+ ret = getter( elem, name, isXML ) != null ?
+ lowercaseName :
+ null;
+ attrHandle[ lowercaseName ] = handle;
+ }
+ return ret;
+ };
+} );
+
+
+
+
+var rfocusable = /^(?:input|select|textarea|button)$/i,
+ rclickable = /^(?:a|area)$/i;
+
+jQuery.fn.extend( {
+ prop: function( name, value ) {
+ return access( this, jQuery.prop, name, value, arguments.length > 1 );
+ },
+
+ removeProp: function( name ) {
+ return this.each( function() {
+ delete this[ jQuery.propFix[ name ] || name ];
+ } );
+ }
+} );
+
+jQuery.extend( {
+ prop: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set properties on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+
+ // Fix name and attach hooks
+ name = jQuery.propFix[ name ] || name;
+ hooks = jQuery.propHooks[ name ];
+ }
+
+ if ( value !== undefined ) {
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ return ( elem[ name ] = value );
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ return elem[ name ];
+ },
+
+ propHooks: {
+ tabIndex: {
+ get: function( elem ) {
+
+ // Support: IE <=9 - 11 only
+ // elem.tabIndex doesn't always return the
+ // correct value when it hasn't been explicitly set
+ // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+ // Use proper attribute retrieval(#12072)
+ var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+ if ( tabindex ) {
+ return parseInt( tabindex, 10 );
+ }
+
+ if (
+ rfocusable.test( elem.nodeName ) ||
+ rclickable.test( elem.nodeName ) &&
+ elem.href
+ ) {
+ return 0;
+ }
+
+ return -1;
+ }
+ }
+ },
+
+ propFix: {
+ "for": "htmlFor",
+ "class": "className"
+ }
+} );
+
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
+// eslint rule "no-unused-expressions" is disabled for this code
+// since it considers such accessions noop
+if ( !support.optSelected ) {
+ jQuery.propHooks.selected = {
+ get: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent && parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ return null;
+ },
+ set: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent ) {
+ parent.selectedIndex;
+
+ if ( parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ }
+ }
+ };
+}
+
+jQuery.each( [
+ "tabIndex",
+ "readOnly",
+ "maxLength",
+ "cellSpacing",
+ "cellPadding",
+ "rowSpan",
+ "colSpan",
+ "useMap",
+ "frameBorder",
+ "contentEditable"
+], function() {
+ jQuery.propFix[ this.toLowerCase() ] = this;
+} );
+
+
+
+
+ // Strip and collapse whitespace according to HTML spec
+ // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
+ function stripAndCollapse( value ) {
+ var tokens = value.match( rnothtmlwhite ) || [];
+ return tokens.join( " " );
+ }
+
+
+function getClass( elem ) {
+ return elem.getAttribute && elem.getAttribute( "class" ) || "";
+}
+
+function classesToArray( value ) {
+ if ( Array.isArray( value ) ) {
+ return value;
+ }
+ if ( typeof value === "string" ) {
+ return value.match( rnothtmlwhite ) || [];
+ }
+ return [];
+}
+
+jQuery.fn.extend( {
+ addClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ classes = classesToArray( value );
+
+ if ( classes.length ) {
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+ if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+ cur += clazz + " ";
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ removeClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ if ( !arguments.length ) {
+ return this.attr( "class", "" );
+ }
+
+ classes = classesToArray( value );
+
+ if ( classes.length ) {
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+
+ // This expression is here for better compressibility (see addClass)
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+
+ // Remove *all* instances
+ while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
+ cur = cur.replace( " " + clazz + " ", " " );
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ toggleClass: function( value, stateVal ) {
+ var type = typeof value,
+ isValidValue = type === "string" || Array.isArray( value );
+
+ if ( typeof stateVal === "boolean" && isValidValue ) {
+ return stateVal ? this.addClass( value ) : this.removeClass( value );
+ }
+
+ if ( isFunction( value ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).toggleClass(
+ value.call( this, i, getClass( this ), stateVal ),
+ stateVal
+ );
+ } );
+ }
+
+ return this.each( function() {
+ var className, i, self, classNames;
+
+ if ( isValidValue ) {
+
+ // Toggle individual class names
+ i = 0;
+ self = jQuery( this );
+ classNames = classesToArray( value );
+
+ while ( ( className = classNames[ i++ ] ) ) {
+
+ // Check each className given, space separated list
+ if ( self.hasClass( className ) ) {
+ self.removeClass( className );
+ } else {
+ self.addClass( className );
+ }
+ }
+
+ // Toggle whole class name
+ } else if ( value === undefined || type === "boolean" ) {
+ className = getClass( this );
+ if ( className ) {
+
+ // Store className if set
+ dataPriv.set( this, "__className__", className );
+ }
+
+ // If the element has a class name or if we're passed `false`,
+ // then remove the whole classname (if there was one, the above saved it).
+ // Otherwise bring back whatever was previously saved (if anything),
+ // falling back to the empty string if nothing was stored.
+ if ( this.setAttribute ) {
+ this.setAttribute( "class",
+ className || value === false ?
+ "" :
+ dataPriv.get( this, "__className__" ) || ""
+ );
+ }
+ }
+ } );
+ },
+
+ hasClass: function( selector ) {
+ var className, elem,
+ i = 0;
+
+ className = " " + selector + " ";
+ while ( ( elem = this[ i++ ] ) ) {
+ if ( elem.nodeType === 1 &&
+ ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+} );
+
+
+
+
+var rreturn = /\r/g;
+
+jQuery.fn.extend( {
+ val: function( value ) {
+ var hooks, ret, valueIsFunction,
+ elem = this[ 0 ];
+
+ if ( !arguments.length ) {
+ if ( elem ) {
+ hooks = jQuery.valHooks[ elem.type ] ||
+ jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+ if ( hooks &&
+ "get" in hooks &&
+ ( ret = hooks.get( elem, "value" ) ) !== undefined
+ ) {
+ return ret;
+ }
+
+ ret = elem.value;
+
+ // Handle most common string cases
+ if ( typeof ret === "string" ) {
+ return ret.replace( rreturn, "" );
+ }
+
+ // Handle cases where value is null/undef or number
+ return ret == null ? "" : ret;
+ }
+
+ return;
+ }
+
+ valueIsFunction = isFunction( value );
+
+ return this.each( function( i ) {
+ var val;
+
+ if ( this.nodeType !== 1 ) {
+ return;
+ }
+
+ if ( valueIsFunction ) {
+ val = value.call( this, i, jQuery( this ).val() );
+ } else {
+ val = value;
+ }
+
+ // Treat null/undefined as ""; convert numbers to string
+ if ( val == null ) {
+ val = "";
+
+ } else if ( typeof val === "number" ) {
+ val += "";
+
+ } else if ( Array.isArray( val ) ) {
+ val = jQuery.map( val, function( value ) {
+ return value == null ? "" : value + "";
+ } );
+ }
+
+ hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+ // If set returns undefined, fall back to normal setting
+ if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
+ this.value = val;
+ }
+ } );
+ }
+} );
+
+jQuery.extend( {
+ valHooks: {
+ option: {
+ get: function( elem ) {
+
+ var val = jQuery.find.attr( elem, "value" );
+ return val != null ?
+ val :
+
+ // Support: IE <=10 - 11 only
+ // option.text throws exceptions (#14686, #14858)
+ // Strip and collapse whitespace
+ // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+ stripAndCollapse( jQuery.text( elem ) );
+ }
+ },
+ select: {
+ get: function( elem ) {
+ var value, option, i,
+ options = elem.options,
+ index = elem.selectedIndex,
+ one = elem.type === "select-one",
+ values = one ? null : [],
+ max = one ? index + 1 : options.length;
+
+ if ( index < 0 ) {
+ i = max;
+
+ } else {
+ i = one ? index : 0;
+ }
+
+ // Loop through all the selected options
+ for ( ; i < max; i++ ) {
+ option = options[ i ];
+
+ // Support: IE <=9 only
+ // IE8-9 doesn't update selected after form reset (#2551)
+ if ( ( option.selected || i === index ) &&
+
+ // Don't return options that are disabled or in a disabled optgroup
+ !option.disabled &&
+ ( !option.parentNode.disabled ||
+ !nodeName( option.parentNode, "optgroup" ) ) ) {
+
+ // Get the specific value for the option
+ value = jQuery( option ).val();
+
+ // We don't need an array for one selects
+ if ( one ) {
+ return value;
+ }
+
+ // Multi-Selects return an array
+ values.push( value );
+ }
+ }
+
+ return values;
+ },
+
+ set: function( elem, value ) {
+ var optionSet, option,
+ options = elem.options,
+ values = jQuery.makeArray( value ),
+ i = options.length;
+
+ while ( i-- ) {
+ option = options[ i ];
+
+ /* eslint-disable no-cond-assign */
+
+ if ( option.selected =
+ jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+ ) {
+ optionSet = true;
+ }
+
+ /* eslint-enable no-cond-assign */
+ }
+
+ // Force browsers to behave consistently when non-matching value is set
+ if ( !optionSet ) {
+ elem.selectedIndex = -1;
+ }
+ return values;
+ }
+ }
+ }
+} );
+
+// Radios and checkboxes getter/setter
+jQuery.each( [ "radio", "checkbox" ], function() {
+ jQuery.valHooks[ this ] = {
+ set: function( elem, value ) {
+ if ( Array.isArray( value ) ) {
+ return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
+ }
+ }
+ };
+ if ( !support.checkOn ) {
+ jQuery.valHooks[ this ].get = function( elem ) {
+ return elem.getAttribute( "value" ) === null ? "on" : elem.value;
+ };
+ }
+} );
+
+
+
+
+// Return jQuery for attributes-only inclusion
+
+
+support.focusin = "onfocusin" in window;
+
+
+var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
+ stopPropagationCallback = function( e ) {
+ e.stopPropagation();
+ };
+
+jQuery.extend( jQuery.event, {
+
+ trigger: function( event, data, elem, onlyHandlers ) {
+
+ var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
+ eventPath = [ elem || document ],
+ type = hasOwn.call( event, "type" ) ? event.type : event,
+ namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
+
+ cur = lastElement = tmp = elem = elem || document;
+
+ // Don't do events on text and comment nodes
+ if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+ return;
+ }
+
+ // focus/blur morphs to focusin/out; ensure we're not firing them right now
+ if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+ return;
+ }
+
+ if ( type.indexOf( "." ) > -1 ) {
+
+ // Namespaced trigger; create a regexp to match event type in handle()
+ namespaces = type.split( "." );
+ type = namespaces.shift();
+ namespaces.sort();
+ }
+ ontype = type.indexOf( ":" ) < 0 && "on" + type;
+
+ // Caller can pass in a jQuery.Event object, Object, or just an event type string
+ event = event[ jQuery.expando ] ?
+ event :
+ new jQuery.Event( type, typeof event === "object" && event );
+
+ // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+ event.isTrigger = onlyHandlers ? 2 : 3;
+ event.namespace = namespaces.join( "." );
+ event.rnamespace = event.namespace ?
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
+ null;
+
+ // Clean up the event in case it is being reused
+ event.result = undefined;
+ if ( !event.target ) {
+ event.target = elem;
+ }
+
+ // Clone any incoming data and prepend the event, creating the handler arg list
+ data = data == null ?
+ [ event ] :
+ jQuery.makeArray( data, [ event ] );
+
+ // Allow special events to draw outside the lines
+ special = jQuery.event.special[ type ] || {};
+ if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+ return;
+ }
+
+ // Determine event propagation path in advance, per W3C events spec (#9951)
+ // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+ if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {
+
+ bubbleType = special.delegateType || type;
+ if ( !rfocusMorph.test( bubbleType + type ) ) {
+ cur = cur.parentNode;
+ }
+ for ( ; cur; cur = cur.parentNode ) {
+ eventPath.push( cur );
+ tmp = cur;
+ }
+
+ // Only add window if we got to document (e.g., not plain obj or detached DOM)
+ if ( tmp === ( elem.ownerDocument || document ) ) {
+ eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+ }
+ }
+
+ // Fire handlers on the event path
+ i = 0;
+ while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
+ lastElement = cur;
+ event.type = i > 1 ?
+ bubbleType :
+ special.bindType || type;
+
+ // jQuery handler
+ handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
+ dataPriv.get( cur, "handle" );
+ if ( handle ) {
+ handle.apply( cur, data );
+ }
+
+ // Native handler
+ handle = ontype && cur[ ontype ];
+ if ( handle && handle.apply && acceptData( cur ) ) {
+ event.result = handle.apply( cur, data );
+ if ( event.result === false ) {
+ event.preventDefault();
+ }
+ }
+ }
+ event.type = type;
+
+ // If nobody prevented the default action, do it now
+ if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+ if ( ( !special._default ||
+ special._default.apply( eventPath.pop(), data ) === false ) &&
+ acceptData( elem ) ) {
+
+ // Call a native DOM method on the target with the same name as the event.
+ // Don't do default actions on window, that's where global variables be (#6170)
+ if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {
+
+ // Don't re-trigger an onFOO event when we call its FOO() method
+ tmp = elem[ ontype ];
+
+ if ( tmp ) {
+ elem[ ontype ] = null;
+ }
+
+ // Prevent re-triggering of the same event, since we already bubbled it above
+ jQuery.event.triggered = type;
+
+ if ( event.isPropagationStopped() ) {
+ lastElement.addEventListener( type, stopPropagationCallback );
+ }
+
+ elem[ type ]();
+
+ if ( event.isPropagationStopped() ) {
+ lastElement.removeEventListener( type, stopPropagationCallback );
+ }
+
+ jQuery.event.triggered = undefined;
+
+ if ( tmp ) {
+ elem[ ontype ] = tmp;
+ }
+ }
+ }
+ }
+
+ return event.result;
+ },
+
+ // Piggyback on a donor event to simulate a different one
+ // Used only for `focus(in | out)` events
+ simulate: function( type, elem, event ) {
+ var e = jQuery.extend(
+ new jQuery.Event(),
+ event,
+ {
+ type: type,
+ isSimulated: true
+ }
+ );
+
+ jQuery.event.trigger( e, null, elem );
+ }
+
+} );
+
+jQuery.fn.extend( {
+
+ trigger: function( type, data ) {
+ return this.each( function() {
+ jQuery.event.trigger( type, data, this );
+ } );
+ },
+ triggerHandler: function( type, data ) {
+ var elem = this[ 0 ];
+ if ( elem ) {
+ return jQuery.event.trigger( type, data, elem, true );
+ }
+ }
+} );
+
+
+// Support: Firefox <=44
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
+ jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+ // Attach a single capturing handler on the document while someone wants focusin/focusout
+ var handler = function( event ) {
+ jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
+ };
+
+ jQuery.event.special[ fix ] = {
+ setup: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix );
+
+ if ( !attaches ) {
+ doc.addEventListener( orig, handler, true );
+ }
+ dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
+ },
+ teardown: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix ) - 1;
+
+ if ( !attaches ) {
+ doc.removeEventListener( orig, handler, true );
+ dataPriv.remove( doc, fix );
+
+ } else {
+ dataPriv.access( doc, fix, attaches );
+ }
+ }
+ };
+ } );
+}
+var location = window.location;
+
+var nonce = Date.now();
+
+var rquery = ( /\?/ );
+
+
+
+// Cross-browser xml parsing
+jQuery.parseXML = function( data ) {
+ var xml;
+ if ( !data || typeof data !== "string" ) {
+ return null;
+ }
+
+ // Support: IE 9 - 11 only
+ // IE throws on parseFromString with invalid input.
+ try {
+ xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
+ } catch ( e ) {
+ xml = undefined;
+ }
+
+ if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
+ jQuery.error( "Invalid XML: " + data );
+ }
+ return xml;
+};
+
+
+var
+ rbracket = /\[\]$/,
+ rCRLF = /\r?\n/g,
+ rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+ rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+function buildParams( prefix, obj, traditional, add ) {
+ var name;
+
+ if ( Array.isArray( obj ) ) {
+
+ // Serialize array item.
+ jQuery.each( obj, function( i, v ) {
+ if ( traditional || rbracket.test( prefix ) ) {
+
+ // Treat each array item as a scalar.
+ add( prefix, v );
+
+ } else {
+
+ // Item is non-scalar (array or object), encode its numeric index.
+ buildParams(
+ prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
+ v,
+ traditional,
+ add
+ );
+ }
+ } );
+
+ } else if ( !traditional && toType( obj ) === "object" ) {
+
+ // Serialize object item.
+ for ( name in obj ) {
+ buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+ }
+
+ } else {
+
+ // Serialize scalar item.
+ add( prefix, obj );
+ }
+}
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+jQuery.param = function( a, traditional ) {
+ var prefix,
+ s = [],
+ add = function( key, valueOrFunction ) {
+
+ // If value is a function, invoke it and use its return value
+ var value = isFunction( valueOrFunction ) ?
+ valueOrFunction() :
+ valueOrFunction;
+
+ s[ s.length ] = encodeURIComponent( key ) + "=" +
+ encodeURIComponent( value == null ? "" : value );
+ };
+
+ // If an array was passed in, assume that it is an array of form elements.
+ if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+
+ // Serialize the form elements
+ jQuery.each( a, function() {
+ add( this.name, this.value );
+ } );
+
+ } else {
+
+ // If traditional, encode the "old" way (the way 1.3.2 or older
+ // did it), otherwise encode params recursively.
+ for ( prefix in a ) {
+ buildParams( prefix, a[ prefix ], traditional, add );
+ }
+ }
+
+ // Return the resulting serialization
+ return s.join( "&" );
+};
+
+jQuery.fn.extend( {
+ serialize: function() {
+ return jQuery.param( this.serializeArray() );
+ },
+ serializeArray: function() {
+ return this.map( function() {
+
+ // Can add propHook for "elements" to filter or add form elements
+ var elements = jQuery.prop( this, "elements" );
+ return elements ? jQuery.makeArray( elements ) : this;
+ } )
+ .filter( function() {
+ var type = this.type;
+
+ // Use .is( ":disabled" ) so that fieldset[disabled] works
+ return this.name && !jQuery( this ).is( ":disabled" ) &&
+ rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+ ( this.checked || !rcheckableType.test( type ) );
+ } )
+ .map( function( i, elem ) {
+ var val = jQuery( this ).val();
+
+ if ( val == null ) {
+ return null;
+ }
+
+ if ( Array.isArray( val ) ) {
+ return jQuery.map( val, function( val ) {
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } );
+ }
+
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } ).get();
+ }
+} );
+
+
+var
+ r20 = /%20/g,
+ rhash = /#.*$/,
+ rantiCache = /([?&])_=[^&]*/,
+ rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
+
+ // #7653, #8125, #8152: local protocol detection
+ rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+ rnoContent = /^(?:GET|HEAD)$/,
+ rprotocol = /^\/\//,
+
+ /* Prefilters
+ * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+ * 2) These are called:
+ * - BEFORE asking for a transport
+ * - AFTER param serialization (s.data is a string if s.processData is true)
+ * 3) key is the dataType
+ * 4) the catchall symbol "*" can be used
+ * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+ */
+ prefilters = {},
+
+ /* Transports bindings
+ * 1) key is the dataType
+ * 2) the catchall symbol "*" can be used
+ * 3) selection will start with transport dataType and THEN go to "*" if needed
+ */
+ transports = {},
+
+ // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+ allTypes = "*/".concat( "*" ),
+
+ // Anchor tag for parsing the document origin
+ originAnchor = document.createElement( "a" );
+ originAnchor.href = location.href;
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+ // dataTypeExpression is optional and defaults to "*"
+ return function( dataTypeExpression, func ) {
+
+ if ( typeof dataTypeExpression !== "string" ) {
+ func = dataTypeExpression;
+ dataTypeExpression = "*";
+ }
+
+ var dataType,
+ i = 0,
+ dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
+
+ if ( isFunction( func ) ) {
+
+ // For each dataType in the dataTypeExpression
+ while ( ( dataType = dataTypes[ i++ ] ) ) {
+
+ // Prepend if requested
+ if ( dataType[ 0 ] === "+" ) {
+ dataType = dataType.slice( 1 ) || "*";
+ ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
+
+ // Otherwise append
+ } else {
+ ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
+ }
+ }
+ }
+ };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+ var inspected = {},
+ seekingTransport = ( structure === transports );
+
+ function inspect( dataType ) {
+ var selected;
+ inspected[ dataType ] = true;
+ jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+ var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+ if ( typeof dataTypeOrTransport === "string" &&
+ !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+
+ options.dataTypes.unshift( dataTypeOrTransport );
+ inspect( dataTypeOrTransport );
+ return false;
+ } else if ( seekingTransport ) {
+ return !( selected = dataTypeOrTransport );
+ }
+ } );
+ return selected;
+ }
+
+ return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+ var key, deep,
+ flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+ for ( key in src ) {
+ if ( src[ key ] !== undefined ) {
+ ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
+ }
+ }
+ if ( deep ) {
+ jQuery.extend( true, target, deep );
+ }
+
+ return target;
+}
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+ var ct, type, finalDataType, firstDataType,
+ contents = s.contents,
+ dataTypes = s.dataTypes;
+
+ // Remove auto dataType and get content-type in the process
+ while ( dataTypes[ 0 ] === "*" ) {
+ dataTypes.shift();
+ if ( ct === undefined ) {
+ ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
+ }
+ }
+
+ // Check if we're dealing with a known content-type
+ if ( ct ) {
+ for ( type in contents ) {
+ if ( contents[ type ] && contents[ type ].test( ct ) ) {
+ dataTypes.unshift( type );
+ break;
+ }
+ }
+ }
+
+ // Check to see if we have a response for the expected dataType
+ if ( dataTypes[ 0 ] in responses ) {
+ finalDataType = dataTypes[ 0 ];
+ } else {
+
+ // Try convertible dataTypes
+ for ( type in responses ) {
+ if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
+ finalDataType = type;
+ break;
+ }
+ if ( !firstDataType ) {
+ firstDataType = type;
+ }
+ }
+
+ // Or just use first one
+ finalDataType = finalDataType || firstDataType;
+ }
+
+ // If we found a dataType
+ // We add the dataType to the list if needed
+ // and return the corresponding response
+ if ( finalDataType ) {
+ if ( finalDataType !== dataTypes[ 0 ] ) {
+ dataTypes.unshift( finalDataType );
+ }
+ return responses[ finalDataType ];
+ }
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+ var conv2, current, conv, tmp, prev,
+ converters = {},
+
+ // Work with a copy of dataTypes in case we need to modify it for conversion
+ dataTypes = s.dataTypes.slice();
+
+ // Create converters map with lowercased keys
+ if ( dataTypes[ 1 ] ) {
+ for ( conv in s.converters ) {
+ converters[ conv.toLowerCase() ] = s.converters[ conv ];
+ }
+ }
+
+ current = dataTypes.shift();
+
+ // Convert to each sequential dataType
+ while ( current ) {
+
+ if ( s.responseFields[ current ] ) {
+ jqXHR[ s.responseFields[ current ] ] = response;
+ }
+
+ // Apply the dataFilter if provided
+ if ( !prev && isSuccess && s.dataFilter ) {
+ response = s.dataFilter( response, s.dataType );
+ }
+
+ prev = current;
+ current = dataTypes.shift();
+
+ if ( current ) {
+
+ // There's only work to do if current dataType is non-auto
+ if ( current === "*" ) {
+
+ current = prev;
+
+ // Convert response if prev dataType is non-auto and differs from current
+ } else if ( prev !== "*" && prev !== current ) {
+
+ // Seek a direct converter
+ conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+ // If none found, seek a pair
+ if ( !conv ) {
+ for ( conv2 in converters ) {
+
+ // If conv2 outputs current
+ tmp = conv2.split( " " );
+ if ( tmp[ 1 ] === current ) {
+
+ // If prev can be converted to accepted input
+ conv = converters[ prev + " " + tmp[ 0 ] ] ||
+ converters[ "* " + tmp[ 0 ] ];
+ if ( conv ) {
+
+ // Condense equivalence converters
+ if ( conv === true ) {
+ conv = converters[ conv2 ];
+
+ // Otherwise, insert the intermediate dataType
+ } else if ( converters[ conv2 ] !== true ) {
+ current = tmp[ 0 ];
+ dataTypes.unshift( tmp[ 1 ] );
+ }
+ break;
+ }
+ }
+ }
+ }
+
+ // Apply converter (if not an equivalence)
+ if ( conv !== true ) {
+
+ // Unless errors are allowed to bubble, catch and return them
+ if ( conv && s.throws ) {
+ response = conv( response );
+ } else {
+ try {
+ response = conv( response );
+ } catch ( e ) {
+ return {
+ state: "parsererror",
+ error: conv ? e : "No conversion from " + prev + " to " + current
+ };
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return { state: "success", data: response };
+}
+
+jQuery.extend( {
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // Last-Modified header cache for next request
+ lastModified: {},
+ etag: {},
+
+ ajaxSettings: {
+ url: location.href,
+ type: "GET",
+ isLocal: rlocalProtocol.test( location.protocol ),
+ global: true,
+ processData: true,
+ async: true,
+ contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+
+ /*
+ timeout: 0,
+ data: null,
+ dataType: null,
+ username: null,
+ password: null,
+ cache: null,
+ throws: false,
+ traditional: false,
+ headers: {},
+ */
+
+ accepts: {
+ "*": allTypes,
+ text: "text/plain",
+ html: "text/html",
+ xml: "application/xml, text/xml",
+ json: "application/json, text/javascript"
+ },
+
+ contents: {
+ xml: /\bxml\b/,
+ html: /\bhtml/,
+ json: /\bjson\b/
+ },
+
+ responseFields: {
+ xml: "responseXML",
+ text: "responseText",
+ json: "responseJSON"
+ },
+
+ // Data converters
+ // Keys separate source (or catchall "*") and destination types with a single space
+ converters: {
+
+ // Convert anything to text
+ "* text": String,
+
+ // Text to html (true = no transformation)
+ "text html": true,
+
+ // Evaluate text as a json expression
+ "text json": JSON.parse,
+
+ // Parse text as xml
+ "text xml": jQuery.parseXML
+ },
+
+ // For options that shouldn't be deep extended:
+ // you can add your own custom options here if
+ // and when you create one that shouldn't be
+ // deep extended (see ajaxExtend)
+ flatOptions: {
+ url: true,
+ context: true
+ }
+ },
+
+ // Creates a full fledged settings object into target
+ // with both ajaxSettings and settings fields.
+ // If target is omitted, writes into ajaxSettings.
+ ajaxSetup: function( target, settings ) {
+ return settings ?
+
+ // Building a settings object
+ ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+ // Extending ajaxSettings
+ ajaxExtend( jQuery.ajaxSettings, target );
+ },
+
+ ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+ ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+ // Main method
+ ajax: function( url, options ) {
+
+ // If url is an object, simulate pre-1.5 signature
+ if ( typeof url === "object" ) {
+ options = url;
+ url = undefined;
+ }
+
+ // Force options to be an object
+ options = options || {};
+
+ var transport,
+
+ // URL without anti-cache param
+ cacheURL,
+
+ // Response headers
+ responseHeadersString,
+ responseHeaders,
+
+ // timeout handle
+ timeoutTimer,
+
+ // Url cleanup var
+ urlAnchor,
+
+ // Request state (becomes false upon send and true upon completion)
+ completed,
+
+ // To know if global events are to be dispatched
+ fireGlobals,
+
+ // Loop variable
+ i,
+
+ // uncached part of the url
+ uncached,
+
+ // Create the final options object
+ s = jQuery.ajaxSetup( {}, options ),
+
+ // Callbacks context
+ callbackContext = s.context || s,
+
+ // Context for global events is callbackContext if it is a DOM node or jQuery collection
+ globalEventContext = s.context &&
+ ( callbackContext.nodeType || callbackContext.jquery ) ?
+ jQuery( callbackContext ) :
+ jQuery.event,
+
+ // Deferreds
+ deferred = jQuery.Deferred(),
+ completeDeferred = jQuery.Callbacks( "once memory" ),
+
+ // Status-dependent callbacks
+ statusCode = s.statusCode || {},
+
+ // Headers (they are sent all at once)
+ requestHeaders = {},
+ requestHeadersNames = {},
+
+ // Default abort message
+ strAbort = "canceled",
+
+ // Fake xhr
+ jqXHR = {
+ readyState: 0,
+
+ // Builds headers hashtable if needed
+ getResponseHeader: function( key ) {
+ var match;
+ if ( completed ) {
+ if ( !responseHeaders ) {
+ responseHeaders = {};
+ while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
+ responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
+ }
+ }
+ match = responseHeaders[ key.toLowerCase() ];
+ }
+ return match == null ? null : match;
+ },
+
+ // Raw string
+ getAllResponseHeaders: function() {
+ return completed ? responseHeadersString : null;
+ },
+
+ // Caches the header
+ setRequestHeader: function( name, value ) {
+ if ( completed == null ) {
+ name = requestHeadersNames[ name.toLowerCase() ] =
+ requestHeadersNames[ name.toLowerCase() ] || name;
+ requestHeaders[ name ] = value;
+ }
+ return this;
+ },
+
+ // Overrides response content-type header
+ overrideMimeType: function( type ) {
+ if ( completed == null ) {
+ s.mimeType = type;
+ }
+ return this;
+ },
+
+ // Status-dependent callbacks
+ statusCode: function( map ) {
+ var code;
+ if ( map ) {
+ if ( completed ) {
+
+ // Execute the appropriate callbacks
+ jqXHR.always( map[ jqXHR.status ] );
+ } else {
+
+ // Lazy-add the new callbacks in a way that preserves old ones
+ for ( code in map ) {
+ statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+ }
+ }
+ }
+ return this;
+ },
+
+ // Cancel the request
+ abort: function( statusText ) {
+ var finalText = statusText || strAbort;
+ if ( transport ) {
+ transport.abort( finalText );
+ }
+ done( 0, finalText );
+ return this;
+ }
+ };
+
+ // Attach deferreds
+ deferred.promise( jqXHR );
+
+ // Add protocol if not provided (prefilters might expect it)
+ // Handle falsy url in the settings object (#10093: consistency with old signature)
+ // We also use the url parameter if available
+ s.url = ( ( url || s.url || location.href ) + "" )
+ .replace( rprotocol, location.protocol + "//" );
+
+ // Alias method option to type as per ticket #12004
+ s.type = options.method || options.type || s.method || s.type;
+
+ // Extract dataTypes list
+ s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
+
+ // A cross-domain request is in order when the origin doesn't match the current origin.
+ if ( s.crossDomain == null ) {
+ urlAnchor = document.createElement( "a" );
+
+ // Support: IE <=8 - 11, Edge 12 - 15
+ // IE throws exception on accessing the href property if url is malformed,
+ // e.g. http://example.com:80x/
+ try {
+ urlAnchor.href = s.url;
+
+ // Support: IE <=8 - 11 only
+ // Anchor's host property isn't correctly set when s.url is relative
+ urlAnchor.href = urlAnchor.href;
+ s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
+ urlAnchor.protocol + "//" + urlAnchor.host;
+ } catch ( e ) {
+
+ // If there is an error parsing the URL, assume it is crossDomain,
+ // it can be rejected by the transport if it is invalid
+ s.crossDomain = true;
+ }
+ }
+
+ // Convert data if not already a string
+ if ( s.data && s.processData && typeof s.data !== "string" ) {
+ s.data = jQuery.param( s.data, s.traditional );
+ }
+
+ // Apply prefilters
+ inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+ // If request was aborted inside a prefilter, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // We can fire global events as of now if asked to
+ // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
+ fireGlobals = jQuery.event && s.global;
+
+ // Watch for a new set of requests
+ if ( fireGlobals && jQuery.active++ === 0 ) {
+ jQuery.event.trigger( "ajaxStart" );
+ }
+
+ // Uppercase the type
+ s.type = s.type.toUpperCase();
+
+ // Determine if request has content
+ s.hasContent = !rnoContent.test( s.type );
+
+ // Save the URL in case we're toying with the If-Modified-Since
+ // and/or If-None-Match header later on
+ // Remove hash to simplify url manipulation
+ cacheURL = s.url.replace( rhash, "" );
+
+ // More options handling for requests with no content
+ if ( !s.hasContent ) {
+
+ // Remember the hash so we can put it back
+ uncached = s.url.slice( cacheURL.length );
+
+ // If data is available and should be processed, append data to url
+ if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
+ cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
+
+ // #9682: remove data so that it's not used in an eventual retry
+ delete s.data;
+ }
+
+ // Add or update anti-cache param if needed
+ if ( s.cache === false ) {
+ cacheURL = cacheURL.replace( rantiCache, "$1" );
+ uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
+ }
+
+ // Put hash and anti-cache on the URL that will be requested (gh-1732)
+ s.url = cacheURL + uncached;
+
+ // Change '%20' to '+' if this is encoded form body content (gh-2658)
+ } else if ( s.data && s.processData &&
+ ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
+ s.data = s.data.replace( r20, "+" );
+ }
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+ }
+ if ( jQuery.etag[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+ }
+ }
+
+ // Set the correct header, if data is being sent
+ if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+ jqXHR.setRequestHeader( "Content-Type", s.contentType );
+ }
+
+ // Set the Accepts header for the server, depending on the dataType
+ jqXHR.setRequestHeader(
+ "Accept",
+ s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
+ s.accepts[ s.dataTypes[ 0 ] ] +
+ ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+ s.accepts[ "*" ]
+ );
+
+ // Check for headers option
+ for ( i in s.headers ) {
+ jqXHR.setRequestHeader( i, s.headers[ i ] );
+ }
+
+ // Allow custom headers/mimetypes and early abort
+ if ( s.beforeSend &&
+ ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
+
+ // Abort if not done already and return
+ return jqXHR.abort();
+ }
+
+ // Aborting is no longer a cancellation
+ strAbort = "abort";
+
+ // Install callbacks on deferreds
+ completeDeferred.add( s.complete );
+ jqXHR.done( s.success );
+ jqXHR.fail( s.error );
+
+ // Get transport
+ transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+ // If no transport, we auto-abort
+ if ( !transport ) {
+ done( -1, "No Transport" );
+ } else {
+ jqXHR.readyState = 1;
+
+ // Send global event
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+ }
+
+ // If request was aborted inside ajaxSend, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // Timeout
+ if ( s.async && s.timeout > 0 ) {
+ timeoutTimer = window.setTimeout( function() {
+ jqXHR.abort( "timeout" );
+ }, s.timeout );
+ }
+
+ try {
+ completed = false;
+ transport.send( requestHeaders, done );
+ } catch ( e ) {
+
+ // Rethrow post-completion exceptions
+ if ( completed ) {
+ throw e;
+ }
+
+ // Propagate others as results
+ done( -1, e );
+ }
+ }
+
+ // Callback for when everything is done
+ function done( status, nativeStatusText, responses, headers ) {
+ var isSuccess, success, error, response, modified,
+ statusText = nativeStatusText;
+
+ // Ignore repeat invocations
+ if ( completed ) {
+ return;
+ }
+
+ completed = true;
+
+ // Clear timeout if it exists
+ if ( timeoutTimer ) {
+ window.clearTimeout( timeoutTimer );
+ }
+
+ // Dereference transport for early garbage collection
+ // (no matter how long the jqXHR object will be used)
+ transport = undefined;
+
+ // Cache response headers
+ responseHeadersString = headers || "";
+
+ // Set readyState
+ jqXHR.readyState = status > 0 ? 4 : 0;
+
+ // Determine if successful
+ isSuccess = status >= 200 && status < 300 || status === 304;
+
+ // Get response data
+ if ( responses ) {
+ response = ajaxHandleResponses( s, jqXHR, responses );
+ }
+
+ // Convert no matter what (that way responseXXX fields are always set)
+ response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+ // If successful, handle type chaining
+ if ( isSuccess ) {
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ modified = jqXHR.getResponseHeader( "Last-Modified" );
+ if ( modified ) {
+ jQuery.lastModified[ cacheURL ] = modified;
+ }
+ modified = jqXHR.getResponseHeader( "etag" );
+ if ( modified ) {
+ jQuery.etag[ cacheURL ] = modified;
+ }
+ }
+
+ // if no content
+ if ( status === 204 || s.type === "HEAD" ) {
+ statusText = "nocontent";
+
+ // if not modified
+ } else if ( status === 304 ) {
+ statusText = "notmodified";
+
+ // If we have data, let's convert it
+ } else {
+ statusText = response.state;
+ success = response.data;
+ error = response.error;
+ isSuccess = !error;
+ }
+ } else {
+
+ // Extract error from statusText and normalize for non-aborts
+ error = statusText;
+ if ( status || !statusText ) {
+ statusText = "error";
+ if ( status < 0 ) {
+ status = 0;
+ }
+ }
+ }
+
+ // Set data for the fake xhr object
+ jqXHR.status = status;
+ jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+ // Success/Error
+ if ( isSuccess ) {
+ deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+ } else {
+ deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+ }
+
+ // Status-dependent callbacks
+ jqXHR.statusCode( statusCode );
+ statusCode = undefined;
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+ [ jqXHR, s, isSuccess ? success : error ] );
+ }
+
+ // Complete
+ completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+
+ // Handle the global AJAX counter
+ if ( !( --jQuery.active ) ) {
+ jQuery.event.trigger( "ajaxStop" );
+ }
+ }
+ }
+
+ return jqXHR;
+ },
+
+ getJSON: function( url, data, callback ) {
+ return jQuery.get( url, data, callback, "json" );
+ },
+
+ getScript: function( url, callback ) {
+ return jQuery.get( url, undefined, callback, "script" );
+ }
+} );
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+ jQuery[ method ] = function( url, data, callback, type ) {
+
+ // Shift arguments if data argument was omitted
+ if ( isFunction( data ) ) {
+ type = type || callback;
+ callback = data;
+ data = undefined;
+ }
+
+ // The url can be an options object (which then must have .url)
+ return jQuery.ajax( jQuery.extend( {
+ url: url,
+ type: method,
+ dataType: type,
+ data: data,
+ success: callback
+ }, jQuery.isPlainObject( url ) && url ) );
+ };
+} );
+
+
+jQuery._evalUrl = function( url ) {
+ return jQuery.ajax( {
+ url: url,
+
+ // Make this explicit, since user can override this through ajaxSetup (#11264)
+ type: "GET",
+ dataType: "script",
+ cache: true,
+ async: false,
+ global: false,
+ "throws": true
+ } );
+};
+
+
+jQuery.fn.extend( {
+ wrapAll: function( html ) {
+ var wrap;
+
+ if ( this[ 0 ] ) {
+ if ( isFunction( html ) ) {
+ html = html.call( this[ 0 ] );
+ }
+
+ // The elements to wrap the target around
+ wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
+
+ if ( this[ 0 ].parentNode ) {
+ wrap.insertBefore( this[ 0 ] );
+ }
+
+ wrap.map( function() {
+ var elem = this;
+
+ while ( elem.firstElementChild ) {
+ elem = elem.firstElementChild;
+ }
+
+ return elem;
+ } ).append( this );
+ }
+
+ return this;
+ },
+
+ wrapInner: function( html ) {
+ if ( isFunction( html ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).wrapInner( html.call( this, i ) );
+ } );
+ }
+
+ return this.each( function() {
+ var self = jQuery( this ),
+ contents = self.contents();
+
+ if ( contents.length ) {
+ contents.wrapAll( html );
+
+ } else {
+ self.append( html );
+ }
+ } );
+ },
+
+ wrap: function( html ) {
+ var htmlIsFunction = isFunction( html );
+
+ return this.each( function( i ) {
+ jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
+ } );
+ },
+
+ unwrap: function( selector ) {
+ this.parent( selector ).not( "body" ).each( function() {
+ jQuery( this ).replaceWith( this.childNodes );
+ } );
+ return this;
+ }
+} );
+
+
+jQuery.expr.pseudos.hidden = function( elem ) {
+ return !jQuery.expr.pseudos.visible( elem );
+};
+jQuery.expr.pseudos.visible = function( elem ) {
+ return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
+};
+
+
+
+
+jQuery.ajaxSettings.xhr = function() {
+ try {
+ return new window.XMLHttpRequest();
+ } catch ( e ) {}
+};
+
+var xhrSuccessStatus = {
+
+ // File protocol always yields status code 0, assume 200
+ 0: 200,
+
+ // Support: IE <=9 only
+ // #1450: sometimes IE returns 1223 when it should be 204
+ 1223: 204
+ },
+ xhrSupported = jQuery.ajaxSettings.xhr();
+
+support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+support.ajax = xhrSupported = !!xhrSupported;
+
+jQuery.ajaxTransport( function( options ) {
+ var callback, errorCallback;
+
+ // Cross domain only allowed if supported through XMLHttpRequest
+ if ( support.cors || xhrSupported && !options.crossDomain ) {
+ return {
+ send: function( headers, complete ) {
+ var i,
+ xhr = options.xhr();
+
+ xhr.open(
+ options.type,
+ options.url,
+ options.async,
+ options.username,
+ options.password
+ );
+
+ // Apply custom fields if provided
+ if ( options.xhrFields ) {
+ for ( i in options.xhrFields ) {
+ xhr[ i ] = options.xhrFields[ i ];
+ }
+ }
+
+ // Override mime type if needed
+ if ( options.mimeType && xhr.overrideMimeType ) {
+ xhr.overrideMimeType( options.mimeType );
+ }
+
+ // X-Requested-With header
+ // For cross-domain requests, seeing as conditions for a preflight are
+ // akin to a jigsaw puzzle, we simply never set it to be sure.
+ // (it can always be set on a per-request basis or even using ajaxSetup)
+ // For same-domain requests, won't change header if already provided.
+ if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
+ headers[ "X-Requested-With" ] = "XMLHttpRequest";
+ }
+
+ // Set headers
+ for ( i in headers ) {
+ xhr.setRequestHeader( i, headers[ i ] );
+ }
+
+ // Callback
+ callback = function( type ) {
+ return function() {
+ if ( callback ) {
+ callback = errorCallback = xhr.onload =
+ xhr.onerror = xhr.onabort = xhr.ontimeout =
+ xhr.onreadystatechange = null;
+
+ if ( type === "abort" ) {
+ xhr.abort();
+ } else if ( type === "error" ) {
+
+ // Support: IE <=9 only
+ // On a manual native abort, IE9 throws
+ // errors on any property access that is not readyState
+ if ( typeof xhr.status !== "number" ) {
+ complete( 0, "error" );
+ } else {
+ complete(
+
+ // File: protocol always yields status 0; see #8605, #14207
+ xhr.status,
+ xhr.statusText
+ );
+ }
+ } else {
+ complete(
+ xhrSuccessStatus[ xhr.status ] || xhr.status,
+ xhr.statusText,
+
+ // Support: IE <=9 only
+ // IE9 has no XHR2 but throws on binary (trac-11426)
+ // For XHR2 non-text, let the caller handle it (gh-2498)
+ ( xhr.responseType || "text" ) !== "text" ||
+ typeof xhr.responseText !== "string" ?
+ { binary: xhr.response } :
+ { text: xhr.responseText },
+ xhr.getAllResponseHeaders()
+ );
+ }
+ }
+ };
+ };
+
+ // Listen to events
+ xhr.onload = callback();
+ errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );
+
+ // Support: IE 9 only
+ // Use onreadystatechange to replace onabort
+ // to handle uncaught aborts
+ if ( xhr.onabort !== undefined ) {
+ xhr.onabort = errorCallback;
+ } else {
+ xhr.onreadystatechange = function() {
+
+ // Check readyState before timeout as it changes
+ if ( xhr.readyState === 4 ) {
+
+ // Allow onerror to be called first,
+ // but that will not handle a native abort
+ // Also, save errorCallback to a variable
+ // as xhr.onerror cannot be accessed
+ window.setTimeout( function() {
+ if ( callback ) {
+ errorCallback();
+ }
+ } );
+ }
+ };
+ }
+
+ // Create the abort callback
+ callback = callback( "abort" );
+
+ try {
+
+ // Do send the request (this may raise an exception)
+ xhr.send( options.hasContent && options.data || null );
+ } catch ( e ) {
+
+ // #14683: Only rethrow if this hasn't been notified as an error yet
+ if ( callback ) {
+ throw e;
+ }
+ }
+ },
+
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
+jQuery.ajaxPrefilter( function( s ) {
+ if ( s.crossDomain ) {
+ s.contents.script = false;
+ }
+} );
+
+// Install script dataType
+jQuery.ajaxSetup( {
+ accepts: {
+ script: "text/javascript, application/javascript, " +
+ "application/ecmascript, application/x-ecmascript"
+ },
+ contents: {
+ script: /\b(?:java|ecma)script\b/
+ },
+ converters: {
+ "text script": function( text ) {
+ jQuery.globalEval( text );
+ return text;
+ }
+ }
+} );
+
+// Handle cache's special case and crossDomain
+jQuery.ajaxPrefilter( "script", function( s ) {
+ if ( s.cache === undefined ) {
+ s.cache = false;
+ }
+ if ( s.crossDomain ) {
+ s.type = "GET";
+ }
+} );
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function( s ) {
+
+ // This transport only deals with cross domain requests
+ if ( s.crossDomain ) {
+ var script, callback;
+ return {
+ send: function( _, complete ) {
+ script = jQuery( "<script>" ).prop( {
+ charset: s.scriptCharset,
+ src: s.url
+ } ).on(
+ "load error",
+ callback = function( evt ) {
+ script.remove();
+ callback = null;
+ if ( evt ) {
+ complete( evt.type === "error" ? 404 : 200, evt.type );
+ }
+ }
+ );
+
+ // Use native DOM manipulation to avoid our domManip AJAX trickery
+ document.head.appendChild( script[ 0 ] );
+ },
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+var oldCallbacks = [],
+ rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup( {
+ jsonp: "callback",
+ jsonpCallback: function() {
+ var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
+ this[ callback ] = true;
+ return callback;
+ }
+} );
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+ var callbackName, overwritten, responseContainer,
+ jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+ "url" :
+ typeof s.data === "string" &&
+ ( s.contentType || "" )
+ .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
+ rjsonp.test( s.data ) && "data"
+ );
+
+ // Handle iff the expected data type is "jsonp" or we have a parameter to set
+ if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+ // Get callback name, remembering preexisting value associated with it
+ callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
+ s.jsonpCallback() :
+ s.jsonpCallback;
+
+ // Insert callback into url or form data
+ if ( jsonProp ) {
+ s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+ } else if ( s.jsonp !== false ) {
+ s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+ }
+
+ // Use data converter to retrieve json after script execution
+ s.converters[ "script json" ] = function() {
+ if ( !responseContainer ) {
+ jQuery.error( callbackName + " was not called" );
+ }
+ return responseContainer[ 0 ];
+ };
+
+ // Force json dataType
+ s.dataTypes[ 0 ] = "json";
+
+ // Install callback
+ overwritten = window[ callbackName ];
+ window[ callbackName ] = function() {
+ responseContainer = arguments;
+ };
+
+ // Clean-up function (fires after converters)
+ jqXHR.always( function() {
+
+ // If previous value didn't exist - remove it
+ if ( overwritten === undefined ) {
+ jQuery( window ).removeProp( callbackName );
+
+ // Otherwise restore preexisting value
+ } else {
+ window[ callbackName ] = overwritten;
+ }
+
+ // Save back as free
+ if ( s[ callbackName ] ) {
+
+ // Make sure that re-using the options doesn't screw things around
+ s.jsonpCallback = originalSettings.jsonpCallback;
+
+ // Save the callback name for future use
+ oldCallbacks.push( callbackName );
+ }
+
+ // Call if it was a function and we have a response
+ if ( responseContainer && isFunction( overwritten ) ) {
+ overwritten( responseContainer[ 0 ] );
+ }
+
+ responseContainer = overwritten = undefined;
+ } );
+
+ // Delegate to script
+ return "script";
+ }
+} );
+
+
+
+
+// Support: Safari 8 only
+// In Safari 8 documents created via document.implementation.createHTMLDocument
+// collapse sibling forms: the second one becomes a child of the first one.
+// Because of that, this security measure has to be disabled in Safari 8.
+// https://bugs.webkit.org/show_bug.cgi?id=137337
+support.createHTMLDocument = ( function() {
+ var body = document.implementation.createHTMLDocument( "" ).body;
+ body.innerHTML = "<form></form><form></form>";
+ return body.childNodes.length === 2;
+} )();
+
+
+// Argument "data" should be string of html
+// context (optional): If specified, the fragment will be created in this context,
+// defaults to document
+// keepScripts (optional): If true, will include scripts passed in the html string
+jQuery.parseHTML = function( data, context, keepScripts ) {
+ if ( typeof data !== "string" ) {
+ return [];
+ }
+ if ( typeof context === "boolean" ) {
+ keepScripts = context;
+ context = false;
+ }
+
+ var base, parsed, scripts;
+
+ if ( !context ) {
+
+ // Stop scripts or inline event handlers from being executed immediately
+ // by using document.implementation
+ if ( support.createHTMLDocument ) {
+ context = document.implementation.createHTMLDocument( "" );
+
+ // Set the base href for the created document
+ // so any parsed elements with URLs
+ // are based on the document's URL (gh-2965)
+ base = context.createElement( "base" );
+ base.href = document.location.href;
+ context.head.appendChild( base );
+ } else {
+ context = document;
+ }
+ }
+
+ parsed = rsingleTag.exec( data );
+ scripts = !keepScripts && [];
+
+ // Single tag
+ if ( parsed ) {
+ return [ context.createElement( parsed[ 1 ] ) ];
+ }
+
+ parsed = buildFragment( [ data ], context, scripts );
+
+ if ( scripts && scripts.length ) {
+ jQuery( scripts ).remove();
+ }
+
+ return jQuery.merge( [], parsed.childNodes );
+};
+
+
+/**
+ * Load a url into a page
+ */
+jQuery.fn.load = function( url, params, callback ) {
+ var selector, type, response,
+ self = this,
+ off = url.indexOf( " " );
+
+ if ( off > -1 ) {
+ selector = stripAndCollapse( url.slice( off ) );
+ url = url.slice( 0, off );
+ }
+
+ // If it's a function
+ if ( isFunction( params ) ) {
+
+ // We assume that it's the callback
+ callback = params;
+ params = undefined;
+
+ // Otherwise, build a param string
+ } else if ( params && typeof params === "object" ) {
+ type = "POST";
+ }
+
+ // If we have elements to modify, make the request
+ if ( self.length > 0 ) {
+ jQuery.ajax( {
+ url: url,
+
+ // If "type" variable is undefined, then "GET" method will be used.
+ // Make value of this field explicit since
+ // user can override it through ajaxSetup method
+ type: type || "GET",
+ dataType: "html",
+ data: params
+ } ).done( function( responseText ) {
+
+ // Save response for use in complete callback
+ response = arguments;
+
+ self.html( selector ?
+
+ // If a selector was specified, locate the right elements in a dummy div
+ // Exclude scripts to avoid IE 'Permission Denied' errors
+ jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+ // Otherwise use the full result
+ responseText );
+
+ // If the request succeeds, this function gets "data", "status", "jqXHR"
+ // but they are ignored because response was set above.
+ // If it fails, this function gets "jqXHR", "status", "error"
+ } ).always( callback && function( jqXHR, status ) {
+ self.each( function() {
+ callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
+ } );
+ } );
+ }
+
+ return this;
+};
+
+
+
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [
+ "ajaxStart",
+ "ajaxStop",
+ "ajaxComplete",
+ "ajaxError",
+ "ajaxSuccess",
+ "ajaxSend"
+], function( i, type ) {
+ jQuery.fn[ type ] = function( fn ) {
+ return this.on( type, fn );
+ };
+} );
+
+
+
+
+jQuery.expr.pseudos.animated = function( elem ) {
+ return jQuery.grep( jQuery.timers, function( fn ) {
+ return elem === fn.elem;
+ } ).length;
+};
+
+
+
+
+jQuery.offset = {
+ setOffset: function( elem, options, i ) {
+ var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
+ position = jQuery.css( elem, "position" ),
+ curElem = jQuery( elem ),
+ props = {};
+
+ // Set position first, in-case top/left are set even on static elem
+ if ( position === "static" ) {
+ elem.style.position = "relative";
+ }
+
+ curOffset = curElem.offset();
+ curCSSTop = jQuery.css( elem, "top" );
+ curCSSLeft = jQuery.css( elem, "left" );
+ calculatePosition = ( position === "absolute" || position === "fixed" ) &&
+ ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
+
+ // Need to be able to calculate position if either
+ // top or left is auto and position is either absolute or fixed
+ if ( calculatePosition ) {
+ curPosition = curElem.position();
+ curTop = curPosition.top;
+ curLeft = curPosition.left;
+
+ } else {
+ curTop = parseFloat( curCSSTop ) || 0;
+ curLeft = parseFloat( curCSSLeft ) || 0;
+ }
+
+ if ( isFunction( options ) ) {
+
+ // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
+ options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
+ }
+
+ if ( options.top != null ) {
+ props.top = ( options.top - curOffset.top ) + curTop;
+ }
+ if ( options.left != null ) {
+ props.left = ( options.left - curOffset.left ) + curLeft;
+ }
+
+ if ( "using" in options ) {
+ options.using.call( elem, props );
+
+ } else {
+ curElem.css( props );
+ }
+ }
+};
+
+jQuery.fn.extend( {
+
+ // offset() relates an element's border box to the document origin
+ offset: function( options ) {
+
+ // Preserve chaining for setter
+ if ( arguments.length ) {
+ return options === undefined ?
+ this :
+ this.each( function( i ) {
+ jQuery.offset.setOffset( this, options, i );
+ } );
+ }
+
+ var rect, win,
+ elem = this[ 0 ];
+
+ if ( !elem ) {
+ return;
+ }
+
+ // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a
+ // disconnected node in IE throws an error
+ if ( !elem.getClientRects().length ) {
+ return { top: 0, left: 0 };
+ }
+
+ // Get document-relative position by adding viewport scroll to viewport-relative gBCR
+ rect = elem.getBoundingClientRect();
+ win = elem.ownerDocument.defaultView;
+ return {
+ top: rect.top + win.pageYOffset,
+ left: rect.left + win.pageXOffset
+ };
+ },
+
+ // position() relates an element's margin box to its offset parent's padding box
+ // This corresponds to the behavior of CSS absolute positioning
+ position: function() {
+ if ( !this[ 0 ] ) {
+ return;
+ }
+
+ var offsetParent, offset, doc,
+ elem = this[ 0 ],
+ parentOffset = { top: 0, left: 0 };
+
+ // position:fixed elements are offset from the viewport, which itself always has zero offset
+ if ( jQuery.css( elem, "position" ) === "fixed" ) {
+
+ // Assume position:fixed implies availability of getBoundingClientRect
+ offset = elem.getBoundingClientRect();
+
+ } else {
+ offset = this.offset();
+
+ // Account for the *real* offset parent, which can be the document or its root element
+ // when a statically positioned element is identified
+ doc = elem.ownerDocument;
+ offsetParent = elem.offsetParent || doc.documentElement;
+ while ( offsetParent &&
+ ( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
+ jQuery.css( offsetParent, "position" ) === "static" ) {
+
+ offsetParent = offsetParent.parentNode;
+ }
+ if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {
+
+ // Incorporate borders into its offset, since they are outside its content origin
+ parentOffset = jQuery( offsetParent ).offset();
+ parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
+ parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
+ }
+ }
+
+ // Subtract parent offsets and element margins
+ return {
+ top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+ left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
+ };
+ },
+
+ // This method will return documentElement in the following cases:
+ // 1) For the element inside the iframe without offsetParent, this method will return
+ // documentElement of the parent window
+ // 2) For the hidden or detached element
+ // 3) For body or html element, i.e. in case of the html node - it will return itself
+ //
+ // but those exceptions were never presented as a real life use-cases
+ // and might be considered as more preferable results.
+ //
+ // This logic, however, is not guaranteed and can change at any point in the future
+ offsetParent: function() {
+ return this.map( function() {
+ var offsetParent = this.offsetParent;
+
+ while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+ offsetParent = offsetParent.offsetParent;
+ }
+
+ return offsetParent || documentElement;
+ } );
+ }
+} );
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
+ var top = "pageYOffset" === prop;
+
+ jQuery.fn[ method ] = function( val ) {
+ return access( this, function( elem, method, val ) {
+
+ // Coalesce documents and windows
+ var win;
+ if ( isWindow( elem ) ) {
+ win = elem;
+ } else if ( elem.nodeType === 9 ) {
+ win = elem.defaultView;
+ }
+
+ if ( val === undefined ) {
+ return win ? win[ prop ] : elem[ method ];
+ }
+
+ if ( win ) {
+ win.scrollTo(
+ !top ? val : win.pageXOffset,
+ top ? val : win.pageYOffset
+ );
+
+ } else {
+ elem[ method ] = val;
+ }
+ }, method, val, arguments.length );
+ };
+} );
+
+// Support: Safari <=7 - 9.1, Chrome <=37 - 49
+// Add the top/left cssHooks using jQuery.fn.position
+// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
+// getComputedStyle returns percent when specified for top/left/bottom/right;
+// rather than make the css module depend on the offset module, just check for it here
+jQuery.each( [ "top", "left" ], function( i, prop ) {
+ jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
+ function( elem, computed ) {
+ if ( computed ) {
+ computed = curCSS( elem, prop );
+
+ // If curCSS returns percentage, fallback to offset
+ return rnumnonpx.test( computed ) ?
+ jQuery( elem ).position()[ prop ] + "px" :
+ computed;
+ }
+ }
+ );
+} );
+
+
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+ jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
+ function( defaultExtra, funcName ) {
+
+ // Margin is only for outerHeight, outerWidth
+ jQuery.fn[ funcName ] = function( margin, value ) {
+ var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+ extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+ return access( this, function( elem, type, value ) {
+ var doc;
+
+ if ( isWindow( elem ) ) {
+
+ // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
+ return funcName.indexOf( "outer" ) === 0 ?
+ elem[ "inner" + name ] :
+ elem.document.documentElement[ "client" + name ];
+ }
+
+ // Get document width or height
+ if ( elem.nodeType === 9 ) {
+ doc = elem.documentElement;
+
+ // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
+ // whichever is greatest
+ return Math.max(
+ elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+ elem.body[ "offset" + name ], doc[ "offset" + name ],
+ doc[ "client" + name ]
+ );
+ }
+
+ return value === undefined ?
+
+ // Get width or height on the element, requesting but not forcing parseFloat
+ jQuery.css( elem, type, extra ) :
+
+ // Set width or height on the element
+ jQuery.style( elem, type, value, extra );
+ }, type, chainable ? margin : undefined, chainable );
+ };
+ } );
+} );
+
+
+jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
+ "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+ "change select submit keydown keypress keyup contextmenu" ).split( " " ),
+ function( i, name ) {
+
+ // Handle event binding
+ jQuery.fn[ name ] = function( data, fn ) {
+ return arguments.length > 0 ?
+ this.on( name, null, data, fn ) :
+ this.trigger( name );
+ };
+} );
+
+jQuery.fn.extend( {
+ hover: function( fnOver, fnOut ) {
+ return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+ }
+} );
+
+
+
+
+jQuery.fn.extend( {
+
+ bind: function( types, data, fn ) {
+ return this.on( types, null, data, fn );
+ },
+ unbind: function( types, fn ) {
+ return this.off( types, null, fn );
+ },
+
+ delegate: function( selector, types, data, fn ) {
+ return this.on( types, selector, data, fn );
+ },
+ undelegate: function( selector, types, fn ) {
+
+ // ( namespace ) or ( selector, types [, fn] )
+ return arguments.length === 1 ?
+ this.off( selector, "**" ) :
+ this.off( types, selector || "**", fn );
+ }
+} );
+
+// Bind a function to a context, optionally partially applying any
+// arguments.
+// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
+// However, it is not slated for removal any time soon
+jQuery.proxy = function( fn, context ) {
+ var tmp, args, proxy;
+
+ if ( typeof context === "string" ) {
+ tmp = fn[ context ];
+ context = fn;
+ fn = tmp;
+ }
+
+ // Quick check to determine if target is callable, in the spec
+ // this throws a TypeError, but we will just return undefined.
+ if ( !isFunction( fn ) ) {
+ return undefined;
+ }
+
+ // Simulated bind
+ args = slice.call( arguments, 2 );
+ proxy = function() {
+ return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
+ };
+
+ // Set the guid of unique handler to the same of original handler, so it can be removed
+ proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+ return proxy;
+};
+
+jQuery.holdReady = function( hold ) {
+ if ( hold ) {
+ jQuery.readyWait++;
+ } else {
+ jQuery.ready( true );
+ }
+};
+jQuery.isArray = Array.isArray;
+jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
+jQuery.isFunction = isFunction;
+jQuery.isWindow = isWindow;
+jQuery.camelCase = camelCase;
+jQuery.type = toType;
+
+jQuery.now = Date.now;
+
+jQuery.isNumeric = function( obj ) {
+
+ // As of jQuery 3.0, isNumeric is limited to
+ // strings and numbers (primitives or objects)
+ // that can be coerced to finite numbers (gh-2662)
+ var type = jQuery.type( obj );
+ return ( type === "number" || type === "string" ) &&
+
+ // parseFloat NaNs numeric-cast false positives ("")
+ // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
+ // subtraction forces infinities to NaN
+ !isNaN( obj - parseFloat( obj ) );
+};
+
+
+
+
+// Register as a named AMD module, since jQuery can be concatenated with other
+// files that may use define, but not via a proper concatenation script that
+// understands anonymous AMD modules. A named AMD is safest and most robust
+// way to register. Lowercase jquery is used because AMD module names are
+// derived from file names, and jQuery is normally delivered in a lowercase
+// file name. Do this after creating the global so that if an AMD module wants
+// to call noConflict to hide this version of jQuery, it will work.
+
+// Note that for maximum portability, libraries that are not jQuery should
+// declare themselves as anonymous modules, and avoid setting a global if an
+// AMD loader is present. jQuery is a special case. For more information, see
+// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
+
+if ( typeof define === "function" && define.amd ) {
+ define( "jquery", [], function() {
+ return jQuery;
+ } );
+}
+
+
+
+
+var
+
+ // Map over jQuery in case of overwrite
+ _jQuery = window.jQuery,
+
+ // Map over the $ in case of overwrite
+ _$ = window.$;
+
+jQuery.noConflict = function( deep ) {
+ if ( window.$ === jQuery ) {
+ window.$ = _$;
+ }
+
+ if ( deep && window.jQuery === jQuery ) {
+ window.jQuery = _jQuery;
+ }
+
+ return jQuery;
+};
+
+// Expose jQuery and $ identifiers, even in AMD
+// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
+// and CommonJS for browser emulators (#13566)
+if ( !noGlobal ) {
+ window.jQuery = window.$ = jQuery;
+}
+
+
+
+
+return jQuery;
+} );
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/language_data.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/language_data.js?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/language_data.js (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/language_data.js Thu Sep 19 07:32:46 2019
@@ -0,0 +1,297 @@
+/*
+ * language_data.js
+ * ~~~~~~~~~~~~~~~~
+ *
+ * This script contains the language-specific data used by searchtools.js,
+ * namely the list of stopwords, stemmer, scorer and splitter.
+ *
+ * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
+
+
+/* Non-minified version JS is _stemmer.js if file is provided */
+/**
+ * Porter Stemmer
+ */
+var Stemmer = function() {
+
+ var step2list = {
+ ational: 'ate',
+ tional: 'tion',
+ enci: 'ence',
+ anci: 'ance',
+ izer: 'ize',
+ bli: 'ble',
+ alli: 'al',
+ entli: 'ent',
+ eli: 'e',
+ ousli: 'ous',
+ ization: 'ize',
+ ation: 'ate',
+ ator: 'ate',
+ alism: 'al',
+ iveness: 'ive',
+ fulness: 'ful',
+ ousness: 'ous',
+ aliti: 'al',
+ iviti: 'ive',
+ biliti: 'ble',
+ logi: 'log'
+ };
+
+ var step3list = {
+ icate: 'ic',
+ ative: '',
+ alize: 'al',
+ iciti: 'ic',
+ ical: 'ic',
+ ful: '',
+ ness: ''
+ };
+
+ var c = "[^aeiou]"; // consonant
+ var v = "[aeiouy]"; // vowel
+ var C = c + "[^aeiouy]*"; // consonant sequence
+ var V = v + "[aeiou]*"; // vowel sequence
+
+ var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0
+ var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1
+ var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1
+ var s_v = "^(" + C + ")?" + v; // vowel in stem
+
+ this.stemWord = function (w) {
+ var stem;
+ var suffix;
+ var firstch;
+ var origword = w;
+
+ if (w.length < 3)
+ return w;
+
+ var re;
+ var re2;
+ var re3;
+ var re4;
+
+ firstch = w.substr(0,1);
+ if (firstch == "y")
+ w = firstch.toUpperCase() + w.substr(1);
+
+ // Step 1a
+ re = /^(.+?)(ss|i)es$/;
+ re2 = /^(.+?)([^s])s$/;
+
+ if (re.test(w))
+ w = w.replace(re,"$1$2");
+ else if (re2.test(w))
+ w = w.replace(re2,"$1$2");
+
+ // Step 1b
+ re = /^(.+?)eed$/;
+ re2 = /^(.+?)(ed|ing)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ re = new RegExp(mgr0);
+ if (re.test(fp[1])) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+ }
+ else if (re2.test(w)) {
+ var fp = re2.exec(w);
+ stem = fp[1];
+ re2 = new RegExp(s_v);
+ if (re2.test(stem)) {
+ w = stem;
+ re2 = /(at|bl|iz)$/;
+ re3 = new RegExp("([^aeiouylsz])\\1$");
+ re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+ if (re2.test(w))
+ w = w + "e";
+ else if (re3.test(w)) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+ else if (re4.test(w))
+ w = w + "e";
+ }
+ }
+
+ // Step 1c
+ re = /^(.+?)y$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(s_v);
+ if (re.test(stem))
+ w = stem + "i";
+ }
+
+ // Step 2
+ re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ suffix = fp[2];
+ re = new RegExp(mgr0);
+ if (re.test(stem))
+ w = stem + step2list[suffix];
+ }
+
+ // Step 3
+ re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ suffix = fp[2];
+ re = new RegExp(mgr0);
+ if (re.test(stem))
+ w = stem + step3list[suffix];
+ }
+
+ // Step 4
+ re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
+ re2 = /^(.+?)(s|t)(ion)$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(mgr1);
+ if (re.test(stem))
+ w = stem;
+ }
+ else if (re2.test(w)) {
+ var fp = re2.exec(w);
+ stem = fp[1] + fp[2];
+ re2 = new RegExp(mgr1);
+ if (re2.test(stem))
+ w = stem;
+ }
+
+ // Step 5
+ re = /^(.+?)e$/;
+ if (re.test(w)) {
+ var fp = re.exec(w);
+ stem = fp[1];
+ re = new RegExp(mgr1);
+ re2 = new RegExp(meq1);
+ re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+ if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
+ w = stem;
+ }
+ re = /ll$/;
+ re2 = new RegExp(mgr1);
+ if (re.test(w) && re2.test(w)) {
+ re = /.$/;
+ w = w.replace(re,"");
+ }
+
+ // and turn initial Y back to y
+ if (firstch == "y")
+ w = firstch.toLowerCase() + w.substr(1);
+ return w;
+ }
+}
+
+
+
+
+
+var splitChars = (function() {
+ var result = {};
+ var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648,
+ 1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702,
+ 2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971,
+ 2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345,
+ 3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761,
+ 3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823,
+ 4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125,
+ 8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695,
+ 11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587,
+ 43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141];
+ var i, j, start, end;
+ for (i = 0; i < singles.length; i++) {
+ result[singles[i]] = true;
+ }
+ var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709],
+ [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161],
+ [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568],
+ [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807],
+ [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047],
+ [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383],
+ [2385, 2391], [2402, 2405], [2419, 2424], [2432, 2436], [2445, 2446], [2449, 2450],
+ [2483, 2485], [2490, 2492], [2494, 2509], [2511, 2523], [2530, 2533], [2546, 2547],
+ [2554, 2564], [2571, 2574], [2577, 2578], [2618, 2648], [2655, 2661], [2672, 2673],
+ [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820],
+ [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946],
+ [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023],
+ [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173],
+ [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332],
+ [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481],
+ [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718],
+ [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791],
+ [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095],
+ [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205],
+ [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687],
+ [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968],
+ [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869],
+ [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102],
+ [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271],
+ [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592],
+ [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822],
+ [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167],
+ [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959],
+ [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143],
+ [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318],
+ [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483],
+ [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101],
+ [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567],
+ [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292],
+ [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444],
+ [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783],
+ [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311],
+ [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511],
+ [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774],
+ [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071],
+ [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263],
+ [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519],
+ [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647],
+ [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967],
+ [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295],
+ [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274],
+ [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007],
+ [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381],
+ [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]];
+ for (i = 0; i < ranges.length; i++) {
+ start = ranges[i][0];
+ end = ranges[i][1];
+ for (j = start; j <= end; j++) {
+ result[j] = true;
+ }
+ }
+ return result;
+})();
+
+function splitQuery(query) {
+ var result = [];
+ var start = -1;
+ for (var i = 0; i < query.length; i++) {
+ if (splitChars[query.charCodeAt(i)]) {
+ if (start !== -1) {
+ result.push(query.slice(start, i));
+ start = -1;
+ }
+ } else if (start === -1) {
+ start = i;
+ }
+ }
+ if (start !== -1) {
+ result.push(query.slice(start));
+ }
+ return result;
+}
+
+
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/minus.png
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/minus.png?rev=372328&view=auto
==============================================================================
Binary file - no diff available.
Propchange: www-releases/trunk/9.0.0/tools/clang/docs/_static/minus.png
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/plus.png
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/plus.png?rev=372328&view=auto
==============================================================================
Binary file - no diff available.
Propchange: www-releases/trunk/9.0.0/tools/clang/docs/_static/plus.png
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/pygments.css
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/pygments.css?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/pygments.css (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/pygments.css Thu Sep 19 07:32:46 2019
@@ -0,0 +1,69 @@
+.highlight .hll { background-color: #ffffcc }
+.highlight { background: #f0f0f0; }
+.highlight .c { color: #60a0b0; font-style: italic } /* Comment */
+.highlight .err { border: 1px solid #FF0000 } /* Error */
+.highlight .k { color: #007020; font-weight: bold } /* Keyword */
+.highlight .o { color: #666666 } /* Operator */
+.highlight .ch { color: #60a0b0; font-style: italic } /* Comment.Hashbang */
+.highlight .cm { color: #60a0b0; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #007020 } /* Comment.Preproc */
+.highlight .cpf { color: #60a0b0; font-style: italic } /* Comment.PreprocFile */
+.highlight .c1 { color: #60a0b0; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #60a0b0; background-color: #fff0f0 } /* Comment.Special */
+.highlight .gd { color: #A00000 } /* Generic.Deleted */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gr { color: #FF0000 } /* Generic.Error */
+.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.highlight .gi { color: #00A000 } /* Generic.Inserted */
+.highlight .go { color: #888888 } /* Generic.Output */
+.highlight .gp { color: #c65d09; font-weight: bold } /* Generic.Prompt */
+.highlight .gs { font-weight: bold } /* Generic.Strong */
+.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.highlight .gt { color: #0044DD } /* Generic.Traceback */
+.highlight .kc { color: #007020; font-weight: bold } /* Keyword.Constant */
+.highlight .kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
+.highlight .kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
+.highlight .kp { color: #007020 } /* Keyword.Pseudo */
+.highlight .kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
+.highlight .kt { color: #902000 } /* Keyword.Type */
+.highlight .m { color: #40a070 } /* Literal.Number */
+.highlight .s { color: #4070a0 } /* Literal.String */
+.highlight .na { color: #4070a0 } /* Name.Attribute */
+.highlight .nb { color: #007020 } /* Name.Builtin */
+.highlight .nc { color: #0e84b5; font-weight: bold } /* Name.Class */
+.highlight .no { color: #60add5 } /* Name.Constant */
+.highlight .nd { color: #555555; font-weight: bold } /* Name.Decorator */
+.highlight .ni { color: #d55537; font-weight: bold } /* Name.Entity */
+.highlight .ne { color: #007020 } /* Name.Exception */
+.highlight .nf { color: #06287e } /* Name.Function */
+.highlight .nl { color: #002070; font-weight: bold } /* Name.Label */
+.highlight .nn { color: #0e84b5; font-weight: bold } /* Name.Namespace */
+.highlight .nt { color: #062873; font-weight: bold } /* Name.Tag */
+.highlight .nv { color: #bb60d5 } /* Name.Variable */
+.highlight .ow { color: #007020; font-weight: bold } /* Operator.Word */
+.highlight .w { color: #bbbbbb } /* Text.Whitespace */
+.highlight .mb { color: #40a070 } /* Literal.Number.Bin */
+.highlight .mf { color: #40a070 } /* Literal.Number.Float */
+.highlight .mh { color: #40a070 } /* Literal.Number.Hex */
+.highlight .mi { color: #40a070 } /* Literal.Number.Integer */
+.highlight .mo { color: #40a070 } /* Literal.Number.Oct */
+.highlight .sa { color: #4070a0 } /* Literal.String.Affix */
+.highlight .sb { color: #4070a0 } /* Literal.String.Backtick */
+.highlight .sc { color: #4070a0 } /* Literal.String.Char */
+.highlight .dl { color: #4070a0 } /* Literal.String.Delimiter */
+.highlight .sd { color: #4070a0; font-style: italic } /* Literal.String.Doc */
+.highlight .s2 { color: #4070a0 } /* Literal.String.Double */
+.highlight .se { color: #4070a0; font-weight: bold } /* Literal.String.Escape */
+.highlight .sh { color: #4070a0 } /* Literal.String.Heredoc */
+.highlight .si { color: #70a0d0; font-style: italic } /* Literal.String.Interpol */
+.highlight .sx { color: #c65d09 } /* Literal.String.Other */
+.highlight .sr { color: #235388 } /* Literal.String.Regex */
+.highlight .s1 { color: #4070a0 } /* Literal.String.Single */
+.highlight .ss { color: #517918 } /* Literal.String.Symbol */
+.highlight .bp { color: #007020 } /* Name.Builtin.Pseudo */
+.highlight .fm { color: #06287e } /* Name.Function.Magic */
+.highlight .vc { color: #bb60d5 } /* Name.Variable.Class */
+.highlight .vg { color: #bb60d5 } /* Name.Variable.Global */
+.highlight .vi { color: #bb60d5 } /* Name.Variable.Instance */
+.highlight .vm { color: #bb60d5 } /* Name.Variable.Magic */
+.highlight .il { color: #40a070 } /* Literal.Number.Integer.Long */
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/searchtools.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/searchtools.js?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/searchtools.js (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/searchtools.js Thu Sep 19 07:32:46 2019
@@ -0,0 +1,481 @@
+/*
+ * searchtools.js
+ * ~~~~~~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilities for the full-text search.
+ *
+ * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+if (!Scorer) {
+ /**
+ * Simple result scoring code.
+ */
+ var Scorer = {
+ // Implement the following function to further tweak the score for each result
+ // The function takes a result array [filename, title, anchor, descr, score]
+ // and returns the new score.
+ /*
+ score: function(result) {
+ return result[4];
+ },
+ */
+
+ // query matches the full name of an object
+ objNameMatch: 11,
+ // or matches in the last dotted part of the object name
+ objPartialMatch: 6,
+ // Additive scores depending on the priority of the object
+ objPrio: {0: 15, // used to be importantResults
+ 1: 5, // used to be objectResults
+ 2: -5}, // used to be unimportantResults
+ // Used when the priority is not in the mapping.
+ objPrioDefault: 0,
+
+ // query found in title
+ title: 15,
+ // query found in terms
+ term: 5
+ };
+}
+
+if (!splitQuery) {
+ function splitQuery(query) {
+ return query.split(/\s+/);
+ }
+}
+
+/**
+ * Search Module
+ */
+var Search = {
+
+ _index : null,
+ _queued_query : null,
+ _pulse_status : -1,
+
+ init : function() {
+ var params = $.getQueryParameters();
+ if (params.q) {
+ var query = params.q[0];
+ $('input[name="q"]')[0].value = query;
+ this.performSearch(query);
+ }
+ },
+
+ loadIndex : function(url) {
+ $.ajax({type: "GET", url: url, data: null,
+ dataType: "script", cache: true,
+ complete: function(jqxhr, textstatus) {
+ if (textstatus != "success") {
+ document.getElementById("searchindexloader").src = url;
+ }
+ }});
+ },
+
+ setIndex : function(index) {
+ var q;
+ this._index = index;
+ if ((q = this._queued_query) !== null) {
+ this._queued_query = null;
+ Search.query(q);
+ }
+ },
+
+ hasIndex : function() {
+ return this._index !== null;
+ },
+
+ deferQuery : function(query) {
+ this._queued_query = query;
+ },
+
+ stopPulse : function() {
+ this._pulse_status = 0;
+ },
+
+ startPulse : function() {
+ if (this._pulse_status >= 0)
+ return;
+ function pulse() {
+ var i;
+ Search._pulse_status = (Search._pulse_status + 1) % 4;
+ var dotString = '';
+ for (i = 0; i < Search._pulse_status; i++)
+ dotString += '.';
+ Search.dots.text(dotString);
+ if (Search._pulse_status > -1)
+ window.setTimeout(pulse, 500);
+ }
+ pulse();
+ },
+
+ /**
+ * perform a search for something (or wait until index is loaded)
+ */
+ performSearch : function(query) {
+ // create the required interface elements
+ this.out = $('#search-results');
+ this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+ this.dots = $('<span></span>').appendTo(this.title);
+ this.status = $('<p style="display: none"></p>').appendTo(this.out);
+ this.output = $('<ul class="search"/>').appendTo(this.out);
+
+ $('#search-progress').text(_('Preparing search...'));
+ this.startPulse();
+
+ // index already loaded, the browser was quick!
+ if (this.hasIndex())
+ this.query(query);
+ else
+ this.deferQuery(query);
+ },
+
+ /**
+ * execute search (requires search index to be loaded)
+ */
+ query : function(query) {
+ var i;
+
+ // stem the searchterms and add them to the correct list
+ var stemmer = new Stemmer();
+ var searchterms = [];
+ var excluded = [];
+ var hlterms = [];
+ var tmp = splitQuery(query);
+ var objectterms = [];
+ for (i = 0; i < tmp.length; i++) {
+ if (tmp[i] !== "") {
+ objectterms.push(tmp[i].toLowerCase());
+ }
+
+ if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) ||
+ tmp[i] === "") {
+ // skip this "word"
+ continue;
+ }
+ // stem the word
+ var word = stemmer.stemWord(tmp[i].toLowerCase());
+ // prevent stemmer from cutting word smaller than two chars
+ if(word.length < 3 && tmp[i].length >= 3) {
+ word = tmp[i];
+ }
+ var toAppend;
+ // select the correct list
+ if (word[0] == '-') {
+ toAppend = excluded;
+ word = word.substr(1);
+ }
+ else {
+ toAppend = searchterms;
+ hlterms.push(tmp[i].toLowerCase());
+ }
+ // only add if not already in the list
+ if (!$u.contains(toAppend, word))
+ toAppend.push(word);
+ }
+ var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
+
+ // console.debug('SEARCH: searching for:');
+ // console.info('required: ', searchterms);
+ // console.info('excluded: ', excluded);
+
+ // prepare search
+ var terms = this._index.terms;
+ var titleterms = this._index.titleterms;
+
+ // array of [filename, title, anchor, descr, score]
+ var results = [];
+ $('#search-progress').empty();
+
+ // lookup as object
+ for (i = 0; i < objectterms.length; i++) {
+ var others = [].concat(objectterms.slice(0, i),
+ objectterms.slice(i+1, objectterms.length));
+ results = results.concat(this.performObjectSearch(objectterms[i], others));
+ }
+
+ // lookup as search terms in fulltext
+ results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms));
+
+ // let the scorer override scores with a custom scoring function
+ if (Scorer.score) {
+ for (i = 0; i < results.length; i++)
+ results[i][4] = Scorer.score(results[i]);
+ }
+
+ // now sort the results by score (in opposite order of appearance, since the
+ // display function below uses pop() to retrieve items) and then
+ // alphabetically
+ results.sort(function(a, b) {
+ var left = a[4];
+ var right = b[4];
+ if (left > right) {
+ return 1;
+ } else if (left < right) {
+ return -1;
+ } else {
+ // same score: sort alphabetically
+ left = a[1].toLowerCase();
+ right = b[1].toLowerCase();
+ return (left > right) ? -1 : ((left < right) ? 1 : 0);
+ }
+ });
+
+ // for debugging
+ //Search.lastresults = results.slice(); // a copy
+ //console.info('search results:', Search.lastresults);
+
+ // print the results
+ var resultCount = results.length;
+ function displayNextItem() {
+ // results left, load the summary and display it
+ if (results.length) {
+ var item = results.pop();
+ var listItem = $('<li style="display:none"></li>');
+ if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') {
+ // dirhtml builder
+ var dirname = item[0] + '/';
+ if (dirname.match(/\/index\/$/)) {
+ dirname = dirname.substring(0, dirname.length-6);
+ } else if (dirname == 'index/') {
+ dirname = '';
+ }
+ listItem.append($('<a/>').attr('href',
+ DOCUMENTATION_OPTIONS.URL_ROOT + dirname +
+ highlightstring + item[2]).html(item[1]));
+ } else {
+ // normal html builders
+ listItem.append($('<a/>').attr('href',
+ item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
+ highlightstring + item[2]).html(item[1]));
+ }
+ if (item[3]) {
+ listItem.append($('<span> (' + item[3] + ')</span>'));
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+ var suffix = DOCUMENTATION_OPTIONS.SOURCELINK_SUFFIX;
+ if (suffix === undefined) {
+ suffix = '.txt';
+ }
+ $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[5] + (item[5].slice(-suffix.length) === suffix ? '' : suffix),
+ dataType: "text",
+ complete: function(jqxhr, textstatus) {
+ var data = jqxhr.responseText;
+ if (data !== '' && data !== undefined) {
+ listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+ }
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ }});
+ } else {
+ // no source available, just display title
+ Search.output.append(listItem);
+ listItem.slideDown(5, function() {
+ displayNextItem();
+ });
+ }
+ }
+ // search finished, update title and status message
+ else {
+ Search.stopPulse();
+ Search.title.text(_('Search Results'));
+ if (!resultCount)
+ Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+ else
+ Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+ Search.status.fadeIn(500);
+ }
+ }
+ displayNextItem();
+ },
+
+ /**
+ * search for object names
+ */
+ performObjectSearch : function(object, otherterms) {
+ var filenames = this._index.filenames;
+ var docnames = this._index.docnames;
+ var objects = this._index.objects;
+ var objnames = this._index.objnames;
+ var titles = this._index.titles;
+
+ var i;
+ var results = [];
+
+ for (var prefix in objects) {
+ for (var name in objects[prefix]) {
+ var fullname = (prefix ? prefix + '.' : '') + name;
+ if (fullname.toLowerCase().indexOf(object) > -1) {
+ var score = 0;
+ var parts = fullname.split('.');
+ // check for different match types: exact matches of full name or
+ // "last name" (i.e. last dotted part)
+ if (fullname == object || parts[parts.length - 1] == object) {
+ score += Scorer.objNameMatch;
+ // matches in last name
+ } else if (parts[parts.length - 1].indexOf(object) > -1) {
+ score += Scorer.objPartialMatch;
+ }
+ var match = objects[prefix][name];
+ var objname = objnames[match[1]][2];
+ var title = titles[match[0]];
+ // If more than one term searched for, we require other words to be
+ // found in the name/title/description
+ if (otherterms.length > 0) {
+ var haystack = (prefix + ' ' + name + ' ' +
+ objname + ' ' + title).toLowerCase();
+ var allfound = true;
+ for (i = 0; i < otherterms.length; i++) {
+ if (haystack.indexOf(otherterms[i]) == -1) {
+ allfound = false;
+ break;
+ }
+ }
+ if (!allfound) {
+ continue;
+ }
+ }
+ var descr = objname + _(', in ') + title;
+
+ var anchor = match[3];
+ if (anchor === '')
+ anchor = fullname;
+ else if (anchor == '-')
+ anchor = objnames[match[1]][1] + '-' + fullname;
+ // add custom score for some objects according to scorer
+ if (Scorer.objPrio.hasOwnProperty(match[2])) {
+ score += Scorer.objPrio[match[2]];
+ } else {
+ score += Scorer.objPrioDefault;
+ }
+ results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]);
+ }
+ }
+ }
+
+ return results;
+ },
+
+ /**
+ * search for full-text terms in the index
+ */
+ performTermsSearch : function(searchterms, excluded, terms, titleterms) {
+ var docnames = this._index.docnames;
+ var filenames = this._index.filenames;
+ var titles = this._index.titles;
+
+ var i, j, file;
+ var fileMap = {};
+ var scoreMap = {};
+ var results = [];
+
+ // perform the search on the required terms
+ for (i = 0; i < searchterms.length; i++) {
+ var word = searchterms[i];
+ var files = [];
+ var _o = [
+ {files: terms[word], score: Scorer.term},
+ {files: titleterms[word], score: Scorer.title}
+ ];
+
+ // no match but word was a required one
+ if ($u.every(_o, function(o){return o.files === undefined;})) {
+ break;
+ }
+ // found search word in contents
+ $u.each(_o, function(o) {
+ var _files = o.files;
+ if (_files === undefined)
+ return
+
+ if (_files.length === undefined)
+ _files = [_files];
+ files = files.concat(_files);
+
+ // set score for the word in each file to Scorer.term
+ for (j = 0; j < _files.length; j++) {
+ file = _files[j];
+ if (!(file in scoreMap))
+ scoreMap[file] = {}
+ scoreMap[file][word] = o.score;
+ }
+ });
+
+ // create the mapping
+ for (j = 0; j < files.length; j++) {
+ file = files[j];
+ if (file in fileMap)
+ fileMap[file].push(word);
+ else
+ fileMap[file] = [word];
+ }
+ }
+
+ // now check if the files don't contain excluded terms
+ for (file in fileMap) {
+ var valid = true;
+
+ // check if all requirements are matched
+ if (fileMap[file].length != searchterms.length)
+ continue;
+
+ // ensure that none of the excluded terms is in the search result
+ for (i = 0; i < excluded.length; i++) {
+ if (terms[excluded[i]] == file ||
+ titleterms[excluded[i]] == file ||
+ $u.contains(terms[excluded[i]] || [], file) ||
+ $u.contains(titleterms[excluded[i]] || [], file)) {
+ valid = false;
+ break;
+ }
+ }
+
+ // if we have still a valid result we can add it to the result list
+ if (valid) {
+ // select one (max) score for the file.
+ // for better ranking, we should calculate ranking by using words statistics like basic tf-idf...
+ var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]}));
+ results.push([docnames[file], titles[file], '', null, score, filenames[file]]);
+ }
+ }
+ return results;
+ },
+
+ /**
+ * helper function to return a node containing the
+ * search summary for a given text. keywords is a list
+ * of stemmed words, hlwords is the list of normal, unstemmed
+ * words. the first one is used to find the occurrence, the
+ * latter for highlighting it.
+ */
+ makeSearchSummary : function(text, keywords, hlwords) {
+ var textLower = text.toLowerCase();
+ var start = 0;
+ $.each(keywords, function() {
+ var i = textLower.indexOf(this.toLowerCase());
+ if (i > -1)
+ start = i;
+ });
+ start = Math.max(start - 120, 0);
+ var excerpt = ((start > 0) ? '...' : '') +
+ $.trim(text.substr(start, 240)) +
+ ((start + 240 - text.length) ? '...' : '');
+ var rv = $('<div class="context"></div>').text(excerpt);
+ $.each(hlwords, function() {
+ rv = rv.highlightText(this, 'highlighted');
+ });
+ return rv;
+ }
+};
+
+$(document).ready(function() {
+ Search.init();
+});
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/underscore.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/underscore.js?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/underscore.js (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/underscore.js Thu Sep 19 07:32:46 2019
@@ -0,0 +1,1692 @@
+// Underscore.js 1.9.1
+// http://underscorejs.org
+// (c) 2009-2018 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` (`self`) in the browser, `global`
+ // on the server, or `this` in some virtual machines. We use `self`
+ // instead of `window` for `WebWorker` support.
+ var root = typeof self == 'object' && self.self === self && self ||
+ typeof global == 'object' && global.global === global && global ||
+ this ||
+ {};
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype;
+ var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var push = ArrayProto.push,
+ slice = ArrayProto.slice,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeCreate = Object.create;
+
+ // Naked function reference for surrogate-prototype-swapping.
+ var Ctor = function(){};
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) {
+ if (obj instanceof _) return obj;
+ if (!(this instanceof _)) return new _(obj);
+ this._wrapped = obj;
+ };
+
+ // Export the Underscore object for **Node.js**, with
+ // backwards-compatibility for their old module API. If we're in
+ // the browser, add `_` as a global object.
+ // (`nodeType` is checked to ensure that `module`
+ // and `exports` are not HTML elements.)
+ if (typeof exports != 'undefined' && !exports.nodeType) {
+ if (typeof module != 'undefined' && !module.nodeType && module.exports) {
+ exports = module.exports = _;
+ }
+ exports._ = _;
+ } else {
+ root._ = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.9.1';
+
+ // Internal function that returns an efficient (for current engines) version
+ // of the passed-in callback, to be repeatedly applied in other Underscore
+ // functions.
+ var optimizeCb = function(func, context, argCount) {
+ if (context === void 0) return func;
+ switch (argCount == null ? 3 : argCount) {
+ case 1: return function(value) {
+ return func.call(context, value);
+ };
+ // The 2-argument case is omitted because weâre not using it.
+ case 3: return function(value, index, collection) {
+ return func.call(context, value, index, collection);
+ };
+ case 4: return function(accumulator, value, index, collection) {
+ return func.call(context, accumulator, value, index, collection);
+ };
+ }
+ return function() {
+ return func.apply(context, arguments);
+ };
+ };
+
+ var builtinIteratee;
+
+ // An internal function to generate callbacks that can be applied to each
+ // element in a collection, returning the desired result â either `identity`,
+ // an arbitrary callback, a property matcher, or a property accessor.
+ var cb = function(value, context, argCount) {
+ if (_.iteratee !== builtinIteratee) return _.iteratee(value, context);
+ if (value == null) return _.identity;
+ if (_.isFunction(value)) return optimizeCb(value, context, argCount);
+ if (_.isObject(value) && !_.isArray(value)) return _.matcher(value);
+ return _.property(value);
+ };
+
+ // External wrapper for our callback generator. Users may customize
+ // `_.iteratee` if they want additional predicate/iteratee shorthand styles.
+ // This abstraction hides the internal-only argCount argument.
+ _.iteratee = builtinIteratee = function(value, context) {
+ return cb(value, context, Infinity);
+ };
+
+ // Some functions take a variable number of arguments, or a few expected
+ // arguments at the beginning and then a variable number of values to operate
+ // on. This helper accumulates all remaining arguments past the functionâs
+ // argument length (or an explicit `startIndex`), into an array that becomes
+ // the last argument. Similar to ES6âs "rest parameter".
+ var restArguments = function(func, startIndex) {
+ startIndex = startIndex == null ? func.length - 1 : +startIndex;
+ return function() {
+ var length = Math.max(arguments.length - startIndex, 0),
+ rest = Array(length),
+ index = 0;
+ for (; index < length; index++) {
+ rest[index] = arguments[index + startIndex];
+ }
+ switch (startIndex) {
+ case 0: return func.call(this, rest);
+ case 1: return func.call(this, arguments[0], rest);
+ case 2: return func.call(this, arguments[0], arguments[1], rest);
+ }
+ var args = Array(startIndex + 1);
+ for (index = 0; index < startIndex; index++) {
+ args[index] = arguments[index];
+ }
+ args[startIndex] = rest;
+ return func.apply(this, args);
+ };
+ };
+
+ // An internal function for creating a new object that inherits from another.
+ var baseCreate = function(prototype) {
+ if (!_.isObject(prototype)) return {};
+ if (nativeCreate) return nativeCreate(prototype);
+ Ctor.prototype = prototype;
+ var result = new Ctor;
+ Ctor.prototype = null;
+ return result;
+ };
+
+ var shallowProperty = function(key) {
+ return function(obj) {
+ return obj == null ? void 0 : obj[key];
+ };
+ };
+
+ var has = function(obj, path) {
+ return obj != null && hasOwnProperty.call(obj, path);
+ }
+
+ var deepGet = function(obj, path) {
+ var length = path.length;
+ for (var i = 0; i < length; i++) {
+ if (obj == null) return void 0;
+ obj = obj[path[i]];
+ }
+ return length ? obj : void 0;
+ };
+
+ // Helper for collection methods to determine whether a collection
+ // should be iterated as an array or as an object.
+ // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
+ // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094
+ var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
+ var getLength = shallowProperty('length');
+ var isArrayLike = function(collection) {
+ var length = getLength(collection);
+ return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
+ };
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles raw objects in addition to array-likes. Treats all
+ // sparse array-likes as if they were dense.
+ _.each = _.forEach = function(obj, iteratee, context) {
+ iteratee = optimizeCb(iteratee, context);
+ var i, length;
+ if (isArrayLike(obj)) {
+ for (i = 0, length = obj.length; i < length; i++) {
+ iteratee(obj[i], i, obj);
+ }
+ } else {
+ var keys = _.keys(obj);
+ for (i = 0, length = keys.length; i < length; i++) {
+ iteratee(obj[keys[i]], keys[i], obj);
+ }
+ }
+ return obj;
+ };
+
+ // Return the results of applying the iteratee to each element.
+ _.map = _.collect = function(obj, iteratee, context) {
+ iteratee = cb(iteratee, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length,
+ results = Array(length);
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ results[index] = iteratee(obj[currentKey], currentKey, obj);
+ }
+ return results;
+ };
+
+ // Create a reducing function iterating left or right.
+ var createReduce = function(dir) {
+ // Wrap code that reassigns argument variables in a separate function than
+ // the one that accesses `arguments.length` to avoid a perf hit. (#1991)
+ var reducer = function(obj, iteratee, memo, initial) {
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length,
+ index = dir > 0 ? 0 : length - 1;
+ if (!initial) {
+ memo = obj[keys ? keys[index] : index];
+ index += dir;
+ }
+ for (; index >= 0 && index < length; index += dir) {
+ var currentKey = keys ? keys[index] : index;
+ memo = iteratee(memo, obj[currentKey], currentKey, obj);
+ }
+ return memo;
+ };
+
+ return function(obj, iteratee, memo, context) {
+ var initial = arguments.length >= 3;
+ return reducer(obj, optimizeCb(iteratee, context, 4), memo, initial);
+ };
+ };
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`.
+ _.reduce = _.foldl = _.inject = createReduce(1);
+
+ // The right-associative version of reduce, also known as `foldr`.
+ _.reduceRight = _.foldr = createReduce(-1);
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, predicate, context) {
+ var keyFinder = isArrayLike(obj) ? _.findIndex : _.findKey;
+ var key = keyFinder(obj, predicate, context);
+ if (key !== void 0 && key !== -1) return obj[key];
+ };
+
+ // Return all the elements that pass a truth test.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, predicate, context) {
+ var results = [];
+ predicate = cb(predicate, context);
+ _.each(obj, function(value, index, list) {
+ if (predicate(value, index, list)) results.push(value);
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, predicate, context) {
+ return _.filter(obj, _.negate(cb(predicate)), context);
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length;
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ if (!predicate(obj[currentKey], currentKey, obj)) return false;
+ }
+ return true;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Aliased as `any`.
+ _.some = _.any = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length;
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ if (predicate(obj[currentKey], currentKey, obj)) return true;
+ }
+ return false;
+ };
+
+ // Determine if the array or object contains a given item (using `===`).
+ // Aliased as `includes` and `include`.
+ _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) {
+ if (!isArrayLike(obj)) obj = _.values(obj);
+ if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+ return _.indexOf(obj, item, fromIndex) >= 0;
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = restArguments(function(obj, path, args) {
+ var contextPath, func;
+ if (_.isFunction(path)) {
+ func = path;
+ } else if (_.isArray(path)) {
+ contextPath = path.slice(0, -1);
+ path = path[path.length - 1];
+ }
+ return _.map(obj, function(context) {
+ var method = func;
+ if (!method) {
+ if (contextPath && contextPath.length) {
+ context = deepGet(context, contextPath);
+ }
+ if (context == null) return void 0;
+ method = context[path];
+ }
+ return method == null ? method : method.apply(context, args);
+ });
+ });
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, _.property(key));
+ };
+
+ // Convenience version of a common use case of `filter`: selecting only objects
+ // containing specific `key:value` pairs.
+ _.where = function(obj, attrs) {
+ return _.filter(obj, _.matcher(attrs));
+ };
+
+ // Convenience version of a common use case of `find`: getting the first object
+ // containing specific `key:value` pairs.
+ _.findWhere = function(obj, attrs) {
+ return _.find(obj, _.matcher(attrs));
+ };
+
+ // Return the maximum element (or element-based computation).
+ _.max = function(obj, iteratee, context) {
+ var result = -Infinity, lastComputed = -Infinity,
+ value, computed;
+ if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {
+ obj = isArrayLike(obj) ? obj : _.values(obj);
+ for (var i = 0, length = obj.length; i < length; i++) {
+ value = obj[i];
+ if (value != null && value > result) {
+ result = value;
+ }
+ }
+ } else {
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(v, index, list) {
+ computed = iteratee(v, index, list);
+ if (computed > lastComputed || computed === -Infinity && result === -Infinity) {
+ result = v;
+ lastComputed = computed;
+ }
+ });
+ }
+ return result;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iteratee, context) {
+ var result = Infinity, lastComputed = Infinity,
+ value, computed;
+ if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {
+ obj = isArrayLike(obj) ? obj : _.values(obj);
+ for (var i = 0, length = obj.length; i < length; i++) {
+ value = obj[i];
+ if (value != null && value < result) {
+ result = value;
+ }
+ }
+ } else {
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(v, index, list) {
+ computed = iteratee(v, index, list);
+ if (computed < lastComputed || computed === Infinity && result === Infinity) {
+ result = v;
+ lastComputed = computed;
+ }
+ });
+ }
+ return result;
+ };
+
+ // Shuffle a collection.
+ _.shuffle = function(obj) {
+ return _.sample(obj, Infinity);
+ };
+
+ // Sample **n** random values from a collection using the modern version of the
+ // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/FisherâYates_shuffle).
+ // If **n** is not specified, returns a single random element.
+ // The internal `guard` argument allows it to work with `map`.
+ _.sample = function(obj, n, guard) {
+ if (n == null || guard) {
+ if (!isArrayLike(obj)) obj = _.values(obj);
+ return obj[_.random(obj.length - 1)];
+ }
+ var sample = isArrayLike(obj) ? _.clone(obj) : _.values(obj);
+ var length = getLength(sample);
+ n = Math.max(Math.min(n, length), 0);
+ var last = length - 1;
+ for (var index = 0; index < n; index++) {
+ var rand = _.random(index, last);
+ var temp = sample[index];
+ sample[index] = sample[rand];
+ sample[rand] = temp;
+ }
+ return sample.slice(0, n);
+ };
+
+ // Sort the object's values by a criterion produced by an iteratee.
+ _.sortBy = function(obj, iteratee, context) {
+ var index = 0;
+ iteratee = cb(iteratee, context);
+ return _.pluck(_.map(obj, function(value, key, list) {
+ return {
+ value: value,
+ index: index++,
+ criteria: iteratee(value, key, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria;
+ var b = right.criteria;
+ if (a !== b) {
+ if (a > b || a === void 0) return 1;
+ if (a < b || b === void 0) return -1;
+ }
+ return left.index - right.index;
+ }), 'value');
+ };
+
+ // An internal function used for aggregate "group by" operations.
+ var group = function(behavior, partition) {
+ return function(obj, iteratee, context) {
+ var result = partition ? [[], []] : {};
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(value, index) {
+ var key = iteratee(value, index, obj);
+ behavior(result, value, key);
+ });
+ return result;
+ };
+ };
+
+ // Groups the object's values by a criterion. Pass either a string attribute
+ // to group by, or a function that returns the criterion.
+ _.groupBy = group(function(result, value, key) {
+ if (has(result, key)) result[key].push(value); else result[key] = [value];
+ });
+
+ // Indexes the object's values by a criterion, similar to `groupBy`, but for
+ // when you know that your index values will be unique.
+ _.indexBy = group(function(result, value, key) {
+ result[key] = value;
+ });
+
+ // Counts instances of an object that group by a certain criterion. Pass
+ // either a string attribute to count by, or a function that returns the
+ // criterion.
+ _.countBy = group(function(result, value, key) {
+ if (has(result, key)) result[key]++; else result[key] = 1;
+ });
+
+ var reStrSymbol = /[^\ud800-\udfff]|[\ud800-\udbff][\udc00-\udfff]|[\ud800-\udfff]/g;
+ // Safely create a real, live array from anything iterable.
+ _.toArray = function(obj) {
+ if (!obj) return [];
+ if (_.isArray(obj)) return slice.call(obj);
+ if (_.isString(obj)) {
+ // Keep surrogate pair characters together
+ return obj.match(reStrSymbol);
+ }
+ if (isArrayLike(obj)) return _.map(obj, _.identity);
+ return _.values(obj);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ if (obj == null) return 0;
+ return isArrayLike(obj) ? obj.length : _.keys(obj).length;
+ };
+
+ // Split a collection into two arrays: one whose elements all satisfy the given
+ // predicate, and one whose elements all do not satisfy the predicate.
+ _.partition = group(function(result, value, pass) {
+ result[pass ? 0 : 1].push(value);
+ }, true);
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head` and `take`. The **guard** check
+ // allows it to work with `_.map`.
+ _.first = _.head = _.take = function(array, n, guard) {
+ if (array == null || array.length < 1) return n == null ? void 0 : [];
+ if (n == null || guard) return array[0];
+ return _.initial(array, array.length - n);
+ };
+
+ // Returns everything but the last entry of the array. Especially useful on
+ // the arguments object. Passing **n** will return all the values in
+ // the array, excluding the last N.
+ _.initial = function(array, n, guard) {
+ return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));
+ };
+
+ // Get the last element of an array. Passing **n** will return the last N
+ // values in the array.
+ _.last = function(array, n, guard) {
+ if (array == null || array.length < 1) return n == null ? void 0 : [];
+ if (n == null || guard) return array[array.length - 1];
+ return _.rest(array, Math.max(0, array.length - n));
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+ // Especially useful on the arguments object. Passing an **n** will return
+ // the rest N values in the array.
+ _.rest = _.tail = _.drop = function(array, n, guard) {
+ return slice.call(array, n == null || guard ? 1 : n);
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, Boolean);
+ };
+
+ // Internal implementation of a recursive `flatten` function.
+ var flatten = function(input, shallow, strict, output) {
+ output = output || [];
+ var idx = output.length;
+ for (var i = 0, length = getLength(input); i < length; i++) {
+ var value = input[i];
+ if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {
+ // Flatten current level of array or arguments object.
+ if (shallow) {
+ var j = 0, len = value.length;
+ while (j < len) output[idx++] = value[j++];
+ } else {
+ flatten(value, shallow, strict, output);
+ idx = output.length;
+ }
+ } else if (!strict) {
+ output[idx++] = value;
+ }
+ }
+ return output;
+ };
+
+ // Flatten out an array, either recursively (by default), or just one level.
+ _.flatten = function(array, shallow) {
+ return flatten(array, shallow, false);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = restArguments(function(array, otherArrays) {
+ return _.difference(array, otherArrays);
+ });
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // The faster algorithm will not work with an iteratee if the iteratee
+ // is not a one-to-one function, so providing an iteratee will disable
+ // the faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iteratee, context) {
+ if (!_.isBoolean(isSorted)) {
+ context = iteratee;
+ iteratee = isSorted;
+ isSorted = false;
+ }
+ if (iteratee != null) iteratee = cb(iteratee, context);
+ var result = [];
+ var seen = [];
+ for (var i = 0, length = getLength(array); i < length; i++) {
+ var value = array[i],
+ computed = iteratee ? iteratee(value, i, array) : value;
+ if (isSorted && !iteratee) {
+ if (!i || seen !== computed) result.push(value);
+ seen = computed;
+ } else if (iteratee) {
+ if (!_.contains(seen, computed)) {
+ seen.push(computed);
+ result.push(value);
+ }
+ } else if (!_.contains(result, value)) {
+ result.push(value);
+ }
+ }
+ return result;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = restArguments(function(arrays) {
+ return _.uniq(flatten(arrays, true, true));
+ });
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays.
+ _.intersection = function(array) {
+ var result = [];
+ var argsLength = arguments.length;
+ for (var i = 0, length = getLength(array); i < length; i++) {
+ var item = array[i];
+ if (_.contains(result, item)) continue;
+ var j;
+ for (j = 1; j < argsLength; j++) {
+ if (!_.contains(arguments[j], item)) break;
+ }
+ if (j === argsLength) result.push(item);
+ }
+ return result;
+ };
+
+ // Take the difference between one array and a number of other arrays.
+ // Only the elements present in just the first array will remain.
+ _.difference = restArguments(function(array, rest) {
+ rest = flatten(rest, true, true);
+ return _.filter(array, function(value){
+ return !_.contains(rest, value);
+ });
+ });
+
+ // Complement of _.zip. Unzip accepts an array of arrays and groups
+ // each array's elements on shared indices.
+ _.unzip = function(array) {
+ var length = array && _.max(array, getLength).length || 0;
+ var result = Array(length);
+
+ for (var index = 0; index < length; index++) {
+ result[index] = _.pluck(array, index);
+ }
+ return result;
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = restArguments(_.unzip);
+
+ // Converts lists into objects. Pass either a single array of `[key, value]`
+ // pairs, or two parallel arrays of the same length -- one of keys, and one of
+ // the corresponding values. Passing by pairs is the reverse of _.pairs.
+ _.object = function(list, values) {
+ var result = {};
+ for (var i = 0, length = getLength(list); i < length; i++) {
+ if (values) {
+ result[list[i]] = values[i];
+ } else {
+ result[list[i][0]] = list[i][1];
+ }
+ }
+ return result;
+ };
+
+ // Generator function to create the findIndex and findLastIndex functions.
+ var createPredicateIndexFinder = function(dir) {
+ return function(array, predicate, context) {
+ predicate = cb(predicate, context);
+ var length = getLength(array);
+ var index = dir > 0 ? 0 : length - 1;
+ for (; index >= 0 && index < length; index += dir) {
+ if (predicate(array[index], index, array)) return index;
+ }
+ return -1;
+ };
+ };
+
+ // Returns the first index on an array-like that passes a predicate test.
+ _.findIndex = createPredicateIndexFinder(1);
+ _.findLastIndex = createPredicateIndexFinder(-1);
+
+ // Use a comparator function to figure out the smallest index at which
+ // an object should be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iteratee, context) {
+ iteratee = cb(iteratee, context, 1);
+ var value = iteratee(obj);
+ var low = 0, high = getLength(array);
+ while (low < high) {
+ var mid = Math.floor((low + high) / 2);
+ if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
+ }
+ return low;
+ };
+
+ // Generator function to create the indexOf and lastIndexOf functions.
+ var createIndexFinder = function(dir, predicateFind, sortedIndex) {
+ return function(array, item, idx) {
+ var i = 0, length = getLength(array);
+ if (typeof idx == 'number') {
+ if (dir > 0) {
+ i = idx >= 0 ? idx : Math.max(idx + length, i);
+ } else {
+ length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;
+ }
+ } else if (sortedIndex && idx && length) {
+ idx = sortedIndex(array, item);
+ return array[idx] === item ? idx : -1;
+ }
+ if (item !== item) {
+ idx = predicateFind(slice.call(array, i, length), _.isNaN);
+ return idx >= 0 ? idx + i : -1;
+ }
+ for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {
+ if (array[idx] === item) return idx;
+ }
+ return -1;
+ };
+ };
+
+ // Return the position of the first occurrence of an item in an array,
+ // or -1 if the item is not included in the array.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex);
+ _.lastIndexOf = createIndexFinder(-1, _.findLastIndex);
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (stop == null) {
+ stop = start || 0;
+ start = 0;
+ }
+ if (!step) {
+ step = stop < start ? -1 : 1;
+ }
+
+ var length = Math.max(Math.ceil((stop - start) / step), 0);
+ var range = Array(length);
+
+ for (var idx = 0; idx < length; idx++, start += step) {
+ range[idx] = start;
+ }
+
+ return range;
+ };
+
+ // Chunk a single array into multiple arrays, each containing `count` or fewer
+ // items.
+ _.chunk = function(array, count) {
+ if (count == null || count < 1) return [];
+ var result = [];
+ var i = 0, length = array.length;
+ while (i < length) {
+ result.push(slice.call(array, i, i += count));
+ }
+ return result;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Determines whether to execute a function as a constructor
+ // or a normal function with the provided arguments.
+ var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {
+ if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
+ var self = baseCreate(sourceFunc.prototype);
+ var result = sourceFunc.apply(self, args);
+ if (_.isObject(result)) return result;
+ return self;
+ };
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
+ // available.
+ _.bind = restArguments(function(func, context, args) {
+ if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
+ var bound = restArguments(function(callArgs) {
+ return executeBound(func, bound, context, this, args.concat(callArgs));
+ });
+ return bound;
+ });
+
+ // Partially apply a function by creating a version that has had some of its
+ // arguments pre-filled, without changing its dynamic `this` context. _ acts
+ // as a placeholder by default, allowing any combination of arguments to be
+ // pre-filled. Set `_.partial.placeholder` for a custom placeholder argument.
+ _.partial = restArguments(function(func, boundArgs) {
+ var placeholder = _.partial.placeholder;
+ var bound = function() {
+ var position = 0, length = boundArgs.length;
+ var args = Array(length);
+ for (var i = 0; i < length; i++) {
+ args[i] = boundArgs[i] === placeholder ? arguments[position++] : boundArgs[i];
+ }
+ while (position < arguments.length) args.push(arguments[position++]);
+ return executeBound(func, bound, this, this, args);
+ };
+ return bound;
+ });
+
+ _.partial.placeholder = _;
+
+ // Bind a number of an object's methods to that object. Remaining arguments
+ // are the method names to be bound. Useful for ensuring that all callbacks
+ // defined on an object belong to it.
+ _.bindAll = restArguments(function(obj, keys) {
+ keys = flatten(keys, false, false);
+ var index = keys.length;
+ if (index < 1) throw new Error('bindAll must be passed function names');
+ while (index--) {
+ var key = keys[index];
+ obj[key] = _.bind(obj[key], obj);
+ }
+ });
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memoize = function(key) {
+ var cache = memoize.cache;
+ var address = '' + (hasher ? hasher.apply(this, arguments) : key);
+ if (!has(cache, address)) cache[address] = func.apply(this, arguments);
+ return cache[address];
+ };
+ memoize.cache = {};
+ return memoize;
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = restArguments(function(func, wait, args) {
+ return setTimeout(function() {
+ return func.apply(null, args);
+ }, wait);
+ });
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = _.partial(_.delay, _, 1);
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time. Normally, the throttled function will run
+ // as much as it can, without ever going more than once per `wait` duration;
+ // but if you'd like to disable the execution on the leading edge, pass
+ // `{leading: false}`. To disable execution on the trailing edge, ditto.
+ _.throttle = function(func, wait, options) {
+ var timeout, context, args, result;
+ var previous = 0;
+ if (!options) options = {};
+
+ var later = function() {
+ previous = options.leading === false ? 0 : _.now();
+ timeout = null;
+ result = func.apply(context, args);
+ if (!timeout) context = args = null;
+ };
+
+ var throttled = function() {
+ var now = _.now();
+ if (!previous && options.leading === false) previous = now;
+ var remaining = wait - (now - previous);
+ context = this;
+ args = arguments;
+ if (remaining <= 0 || remaining > wait) {
+ if (timeout) {
+ clearTimeout(timeout);
+ timeout = null;
+ }
+ previous = now;
+ result = func.apply(context, args);
+ if (!timeout) context = args = null;
+ } else if (!timeout && options.trailing !== false) {
+ timeout = setTimeout(later, remaining);
+ }
+ return result;
+ };
+
+ throttled.cancel = function() {
+ clearTimeout(timeout);
+ previous = 0;
+ timeout = context = args = null;
+ };
+
+ return throttled;
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds. If `immediate` is passed, trigger the function on the
+ // leading edge, instead of the trailing.
+ _.debounce = function(func, wait, immediate) {
+ var timeout, result;
+
+ var later = function(context, args) {
+ timeout = null;
+ if (args) result = func.apply(context, args);
+ };
+
+ var debounced = restArguments(function(args) {
+ if (timeout) clearTimeout(timeout);
+ if (immediate) {
+ var callNow = !timeout;
+ timeout = setTimeout(later, wait);
+ if (callNow) result = func.apply(this, args);
+ } else {
+ timeout = _.delay(later, wait, this, args);
+ }
+
+ return result;
+ });
+
+ debounced.cancel = function() {
+ clearTimeout(timeout);
+ timeout = null;
+ };
+
+ return debounced;
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return _.partial(wrapper, func);
+ };
+
+ // Returns a negated version of the passed-in predicate.
+ _.negate = function(predicate) {
+ return function() {
+ return !predicate.apply(this, arguments);
+ };
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var args = arguments;
+ var start = args.length - 1;
+ return function() {
+ var i = start;
+ var result = args[start].apply(this, arguments);
+ while (i--) result = args[i].call(this, result);
+ return result;
+ };
+ };
+
+ // Returns a function that will only be executed on and after the Nth call.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ };
+
+ // Returns a function that will only be executed up to (but not including) the Nth call.
+ _.before = function(times, func) {
+ var memo;
+ return function() {
+ if (--times > 0) {
+ memo = func.apply(this, arguments);
+ }
+ if (times <= 1) func = null;
+ return memo;
+ };
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = _.partial(_.before, 2);
+
+ _.restArguments = restArguments;
+
+ // Object Functions
+ // ----------------
+
+ // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
+ var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
+ var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
+ 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];
+
+ var collectNonEnumProps = function(obj, keys) {
+ var nonEnumIdx = nonEnumerableProps.length;
+ var constructor = obj.constructor;
+ var proto = _.isFunction(constructor) && constructor.prototype || ObjProto;
+
+ // Constructor is a special case.
+ var prop = 'constructor';
+ if (has(obj, prop) && !_.contains(keys, prop)) keys.push(prop);
+
+ while (nonEnumIdx--) {
+ prop = nonEnumerableProps[nonEnumIdx];
+ if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) {
+ keys.push(prop);
+ }
+ }
+ };
+
+ // Retrieve the names of an object's own properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`.
+ _.keys = function(obj) {
+ if (!_.isObject(obj)) return [];
+ if (nativeKeys) return nativeKeys(obj);
+ var keys = [];
+ for (var key in obj) if (has(obj, key)) keys.push(key);
+ // Ahem, IE < 9.
+ if (hasEnumBug) collectNonEnumProps(obj, keys);
+ return keys;
+ };
+
+ // Retrieve all the property names of an object.
+ _.allKeys = function(obj) {
+ if (!_.isObject(obj)) return [];
+ var keys = [];
+ for (var key in obj) keys.push(key);
+ // Ahem, IE < 9.
+ if (hasEnumBug) collectNonEnumProps(obj, keys);
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var values = Array(length);
+ for (var i = 0; i < length; i++) {
+ values[i] = obj[keys[i]];
+ }
+ return values;
+ };
+
+ // Returns the results of applying the iteratee to each element of the object.
+ // In contrast to _.map it returns an object.
+ _.mapObject = function(obj, iteratee, context) {
+ iteratee = cb(iteratee, context);
+ var keys = _.keys(obj),
+ length = keys.length,
+ results = {};
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys[index];
+ results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
+ }
+ return results;
+ };
+
+ // Convert an object into a list of `[key, value]` pairs.
+ // The opposite of _.object.
+ _.pairs = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var pairs = Array(length);
+ for (var i = 0; i < length; i++) {
+ pairs[i] = [keys[i], obj[keys[i]]];
+ }
+ return pairs;
+ };
+
+ // Invert the keys and values of an object. The values must be serializable.
+ _.invert = function(obj) {
+ var result = {};
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ result[obj[keys[i]]] = keys[i];
+ }
+ return result;
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`.
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // An internal function for creating assigner functions.
+ var createAssigner = function(keysFunc, defaults) {
+ return function(obj) {
+ var length = arguments.length;
+ if (defaults) obj = Object(obj);
+ if (length < 2 || obj == null) return obj;
+ for (var index = 1; index < length; index++) {
+ var source = arguments[index],
+ keys = keysFunc(source),
+ l = keys.length;
+ for (var i = 0; i < l; i++) {
+ var key = keys[i];
+ if (!defaults || obj[key] === void 0) obj[key] = source[key];
+ }
+ }
+ return obj;
+ };
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = createAssigner(_.allKeys);
+
+ // Assigns a given object with all the own properties in the passed-in object(s).
+ // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
+ _.extendOwn = _.assign = createAssigner(_.keys);
+
+ // Returns the first key on an object that passes a predicate test.
+ _.findKey = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = _.keys(obj), key;
+ for (var i = 0, length = keys.length; i < length; i++) {
+ key = keys[i];
+ if (predicate(obj[key], key, obj)) return key;
+ }
+ };
+
+ // Internal pick helper function to determine if `obj` has key `key`.
+ var keyInObj = function(value, key, obj) {
+ return key in obj;
+ };
+
+ // Return a copy of the object only containing the whitelisted properties.
+ _.pick = restArguments(function(obj, keys) {
+ var result = {}, iteratee = keys[0];
+ if (obj == null) return result;
+ if (_.isFunction(iteratee)) {
+ if (keys.length > 1) iteratee = optimizeCb(iteratee, keys[1]);
+ keys = _.allKeys(obj);
+ } else {
+ iteratee = keyInObj;
+ keys = flatten(keys, false, false);
+ obj = Object(obj);
+ }
+ for (var i = 0, length = keys.length; i < length; i++) {
+ var key = keys[i];
+ var value = obj[key];
+ if (iteratee(value, key, obj)) result[key] = value;
+ }
+ return result;
+ });
+
+ // Return a copy of the object without the blacklisted properties.
+ _.omit = restArguments(function(obj, keys) {
+ var iteratee = keys[0], context;
+ if (_.isFunction(iteratee)) {
+ iteratee = _.negate(iteratee);
+ if (keys.length > 1) context = keys[1];
+ } else {
+ keys = _.map(flatten(keys, false, false), String);
+ iteratee = function(value, key) {
+ return !_.contains(keys, key);
+ };
+ }
+ return _.pick(obj, iteratee, context);
+ });
+
+ // Fill in a given object with default properties.
+ _.defaults = createAssigner(_.allKeys, true);
+
+ // Creates an object that inherits from the given prototype object.
+ // If additional properties are provided then they will be added to the
+ // created object.
+ _.create = function(prototype, props) {
+ var result = baseCreate(prototype);
+ if (props) _.extendOwn(result, props);
+ return result;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ if (!_.isObject(obj)) return obj;
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Returns whether an object has a given set of `key:value` pairs.
+ _.isMatch = function(object, attrs) {
+ var keys = _.keys(attrs), length = keys.length;
+ if (object == null) return !length;
+ var obj = Object(object);
+ for (var i = 0; i < length; i++) {
+ var key = keys[i];
+ if (attrs[key] !== obj[key] || !(key in obj)) return false;
+ }
+ return true;
+ };
+
+
+ // Internal recursive comparison function for `isEqual`.
+ var eq, deepEq;
+ eq = function(a, b, aStack, bStack) {
+ // Identical objects are equal. `0 === -0`, but they aren't identical.
+ // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
+ if (a === b) return a !== 0 || 1 / a === 1 / b;
+ // `null` or `undefined` only equal to itself (strict comparison).
+ if (a == null || b == null) return false;
+ // `NaN`s are equivalent, but non-reflexive.
+ if (a !== a) return b !== b;
+ // Exhaust primitive checks
+ var type = typeof a;
+ if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
+ return deepEq(a, b, aStack, bStack);
+ };
+
+ // Internal recursive comparison function for `isEqual`.
+ deepEq = function(a, b, aStack, bStack) {
+ // Unwrap any wrapped objects.
+ if (a instanceof _) a = a._wrapped;
+ if (b instanceof _) b = b._wrapped;
+ // Compare `[[Class]]` names.
+ var className = toString.call(a);
+ if (className !== toString.call(b)) return false;
+ switch (className) {
+ // Strings, numbers, regular expressions, dates, and booleans are compared by value.
+ case '[object RegExp]':
+ // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')
+ case '[object String]':
+ // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+ // equivalent to `new String("5")`.
+ return '' + a === '' + b;
+ case '[object Number]':
+ // `NaN`s are equivalent, but non-reflexive.
+ // Object(NaN) is equivalent to NaN.
+ if (+a !== +a) return +b !== +b;
+ // An `egal` comparison is performed for other numeric values.
+ return +a === 0 ? 1 / +a === 1 / b : +a === +b;
+ case '[object Date]':
+ case '[object Boolean]':
+ // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+ // millisecond representations. Note that invalid dates with millisecond representations
+ // of `NaN` are not equivalent.
+ return +a === +b;
+ case '[object Symbol]':
+ return SymbolProto.valueOf.call(a) === SymbolProto.valueOf.call(b);
+ }
+
+ var areArrays = className === '[object Array]';
+ if (!areArrays) {
+ if (typeof a != 'object' || typeof b != 'object') return false;
+
+ // Objects with different constructors are not equivalent, but `Object`s or `Array`s
+ // from different frames are.
+ var aCtor = a.constructor, bCtor = b.constructor;
+ if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&
+ _.isFunction(bCtor) && bCtor instanceof bCtor)
+ && ('constructor' in a && 'constructor' in b)) {
+ return false;
+ }
+ }
+ // Assume equality for cyclic structures. The algorithm for detecting cyclic
+ // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+
+ // Initializing stack of traversed objects.
+ // It's done here since we only need them for objects and arrays comparison.
+ aStack = aStack || [];
+ bStack = bStack || [];
+ var length = aStack.length;
+ while (length--) {
+ // Linear search. Performance is inversely proportional to the number of
+ // unique nested structures.
+ if (aStack[length] === a) return bStack[length] === b;
+ }
+
+ // Add the first object to the stack of traversed objects.
+ aStack.push(a);
+ bStack.push(b);
+
+ // Recursively compare objects and arrays.
+ if (areArrays) {
+ // Compare array lengths to determine if a deep comparison is necessary.
+ length = a.length;
+ if (length !== b.length) return false;
+ // Deep compare the contents, ignoring non-numeric properties.
+ while (length--) {
+ if (!eq(a[length], b[length], aStack, bStack)) return false;
+ }
+ } else {
+ // Deep compare objects.
+ var keys = _.keys(a), key;
+ length = keys.length;
+ // Ensure that both objects contain the same number of properties before comparing deep equality.
+ if (_.keys(b).length !== length) return false;
+ while (length--) {
+ // Deep compare each member
+ key = keys[length];
+ if (!(has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
+ }
+ }
+ // Remove the first object from the stack of traversed objects.
+ aStack.pop();
+ bStack.pop();
+ return true;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ return eq(a, b);
+ };
+
+ // Is a given array, string, or object empty?
+ // An "empty" object has no enumerable own-properties.
+ _.isEmpty = function(obj) {
+ if (obj == null) return true;
+ if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
+ return _.keys(obj).length === 0;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType === 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) === '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ var type = typeof obj;
+ return type === 'function' || type === 'object' && !!obj;
+ };
+
+ // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError, isMap, isWeakMap, isSet, isWeakSet.
+ _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error', 'Symbol', 'Map', 'WeakMap', 'Set', 'WeakSet'], function(name) {
+ _['is' + name] = function(obj) {
+ return toString.call(obj) === '[object ' + name + ']';
+ };
+ });
+
+ // Define a fallback version of the method in browsers (ahem, IE < 9), where
+ // there isn't any inspectable "Arguments" type.
+ if (!_.isArguments(arguments)) {
+ _.isArguments = function(obj) {
+ return has(obj, 'callee');
+ };
+ }
+
+ // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,
+ // IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
+ var nodelist = root.document && root.document.childNodes;
+ if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
+ _.isFunction = function(obj) {
+ return typeof obj == 'function' || false;
+ };
+ }
+
+ // Is a given object a finite number?
+ _.isFinite = function(obj) {
+ return !_.isSymbol(obj) && isFinite(obj) && !isNaN(parseFloat(obj));
+ };
+
+ // Is the given value `NaN`?
+ _.isNaN = function(obj) {
+ return _.isNumber(obj) && isNaN(obj);
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false || toString.call(obj) === '[object Boolean]';
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Shortcut function for checking if an object has a given property directly
+ // on itself (in other words, not on a prototype).
+ _.has = function(obj, path) {
+ if (!_.isArray(path)) {
+ return has(obj, path);
+ }
+ var length = path.length;
+ for (var i = 0; i < length; i++) {
+ var key = path[i];
+ if (obj == null || !hasOwnProperty.call(obj, key)) {
+ return false;
+ }
+ obj = obj[key];
+ }
+ return !!length;
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iteratees.
+ _.identity = function(value) {
+ return value;
+ };
+
+ // Predicate-generating functions. Often useful outside of Underscore.
+ _.constant = function(value) {
+ return function() {
+ return value;
+ };
+ };
+
+ _.noop = function(){};
+
+ // Creates a function that, when passed an object, will traverse that objectâs
+ // properties down the given `path`, specified as an array of keys or indexes.
+ _.property = function(path) {
+ if (!_.isArray(path)) {
+ return shallowProperty(path);
+ }
+ return function(obj) {
+ return deepGet(obj, path);
+ };
+ };
+
+ // Generates a function for a given object that returns a given property.
+ _.propertyOf = function(obj) {
+ if (obj == null) {
+ return function(){};
+ }
+ return function(path) {
+ return !_.isArray(path) ? obj[path] : deepGet(obj, path);
+ };
+ };
+
+ // Returns a predicate for checking whether an object has a given set of
+ // `key:value` pairs.
+ _.matcher = _.matches = function(attrs) {
+ attrs = _.extendOwn({}, attrs);
+ return function(obj) {
+ return _.isMatch(obj, attrs);
+ };
+ };
+
+ // Run a function **n** times.
+ _.times = function(n, iteratee, context) {
+ var accum = Array(Math.max(0, n));
+ iteratee = optimizeCb(iteratee, context, 1);
+ for (var i = 0; i < n; i++) accum[i] = iteratee(i);
+ return accum;
+ };
+
+ // Return a random integer between min and max (inclusive).
+ _.random = function(min, max) {
+ if (max == null) {
+ max = min;
+ min = 0;
+ }
+ return min + Math.floor(Math.random() * (max - min + 1));
+ };
+
+ // A (possibly faster) way to get the current timestamp as an integer.
+ _.now = Date.now || function() {
+ return new Date().getTime();
+ };
+
+ // List of HTML entities for escaping.
+ var escapeMap = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ "'": ''',
+ '`': '`'
+ };
+ var unescapeMap = _.invert(escapeMap);
+
+ // Functions for escaping and unescaping strings to/from HTML interpolation.
+ var createEscaper = function(map) {
+ var escaper = function(match) {
+ return map[match];
+ };
+ // Regexes for identifying a key that needs to be escaped.
+ var source = '(?:' + _.keys(map).join('|') + ')';
+ var testRegexp = RegExp(source);
+ var replaceRegexp = RegExp(source, 'g');
+ return function(string) {
+ string = string == null ? '' : '' + string;
+ return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
+ };
+ };
+ _.escape = createEscaper(escapeMap);
+ _.unescape = createEscaper(unescapeMap);
+
+ // Traverses the children of `obj` along `path`. If a child is a function, it
+ // is invoked with its parent as context. Returns the value of the final
+ // child, or `fallback` if any child is undefined.
+ _.result = function(obj, path, fallback) {
+ if (!_.isArray(path)) path = [path];
+ var length = path.length;
+ if (!length) {
+ return _.isFunction(fallback) ? fallback.call(obj) : fallback;
+ }
+ for (var i = 0; i < length; i++) {
+ var prop = obj == null ? void 0 : obj[path[i]];
+ if (prop === void 0) {
+ prop = fallback;
+ i = length; // Ensure we don't continue iterating.
+ }
+ obj = _.isFunction(prop) ? prop.call(obj) : prop;
+ }
+ return obj;
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = ++idCounter + '';
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate: /<%([\s\S]+?)%>/g,
+ interpolate: /<%=([\s\S]+?)%>/g,
+ escape: /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escapeRegExp = /\\|'|\r|\n|\u2028|\u2029/g;
+
+ var escapeChar = function(match) {
+ return '\\' + escapes[match];
+ };
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ // NB: `oldSettings` only exists for backwards compatibility.
+ _.template = function(text, settings, oldSettings) {
+ if (!settings && oldSettings) settings = oldSettings;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset).replace(escapeRegExp, escapeChar);
+ index = offset + match.length;
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ } else if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ } else if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+
+ // Adobe VMs need the match returned to produce the correct offset.
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + 'return __p;\n';
+
+ var render;
+ try {
+ render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled source as a convenience for precompilation.
+ var argument = settings.variable || 'obj';
+ template.source = 'function(' + argument + '){\n' + source + '}';
+
+ return template;
+ };
+
+ // Add a "chain" function. Start chaining a wrapped Underscore object.
+ _.chain = function(obj) {
+ var instance = _(obj);
+ instance._chain = true;
+ return instance;
+ };
+
+ // OOP
+ // ---------------
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+
+ // Helper function to continue chaining intermediate results.
+ var chainResult = function(instance, obj) {
+ return instance._chain ? _(obj).chain() : obj;
+ };
+
+ // Add your own custom functions to the Underscore object.
+ _.mixin = function(obj) {
+ _.each(_.functions(obj), function(name) {
+ var func = _[name] = obj[name];
+ _.prototype[name] = function() {
+ var args = [this._wrapped];
+ push.apply(args, arguments);
+ return chainResult(this, func.apply(_, args));
+ };
+ });
+ return _;
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ var obj = this._wrapped;
+ method.apply(obj, arguments);
+ if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];
+ return chainResult(this, obj);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ _.each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ return chainResult(this, method.apply(this._wrapped, arguments));
+ };
+ });
+
+ // Extracts the result from a wrapped and chained object.
+ _.prototype.value = function() {
+ return this._wrapped;
+ };
+
+ // Provide unwrapping proxy for some methods used in engine operations
+ // such as arithmetic and JSON stringification.
+ _.prototype.valueOf = _.prototype.toJSON = _.prototype.value;
+
+ _.prototype.toString = function() {
+ return String(this._wrapped);
+ };
+
+ // AMD registration happens at the end for compatibility with AMD loaders
+ // that may not enforce next-turn semantics on modules. Even though general
+ // practice for AMD registration is to be anonymous, underscore registers
+ // as a named module because, like jQuery, it is a base library that is
+ // popular enough to be bundled in a third party lib, but not be part of
+ // an AMD load request. Those cases could generate an error when an
+ // anonymous define() is called outside of a loader request.
+ if (typeof define == 'function' && define.amd) {
+ define('underscore', [], function() {
+ return _;
+ });
+ }
+}());
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/up-pressed.png
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/up-pressed.png?rev=372328&view=auto
==============================================================================
Binary file - no diff available.
Propchange: www-releases/trunk/9.0.0/tools/clang/docs/_static/up-pressed.png
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/up.png
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/up.png?rev=372328&view=auto
==============================================================================
Binary file - no diff available.
Propchange: www-releases/trunk/9.0.0/tools/clang/docs/_static/up.png
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Added: www-releases/trunk/9.0.0/tools/clang/docs/_static/websupport.js
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/_static/websupport.js?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/_static/websupport.js (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/_static/websupport.js Thu Sep 19 07:32:46 2019
@@ -0,0 +1,808 @@
+/*
+ * websupport.js
+ * ~~~~~~~~~~~~~
+ *
+ * sphinx.websupport utilities for all documentation.
+ *
+ * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+(function($) {
+ $.fn.autogrow = function() {
+ return this.each(function() {
+ var textarea = this;
+
+ $.fn.autogrow.resize(textarea);
+
+ $(textarea)
+ .focus(function() {
+ textarea.interval = setInterval(function() {
+ $.fn.autogrow.resize(textarea);
+ }, 500);
+ })
+ .blur(function() {
+ clearInterval(textarea.interval);
+ });
+ });
+ };
+
+ $.fn.autogrow.resize = function(textarea) {
+ var lineHeight = parseInt($(textarea).css('line-height'), 10);
+ var lines = textarea.value.split('\n');
+ var columns = textarea.cols;
+ var lineCount = 0;
+ $.each(lines, function() {
+ lineCount += Math.ceil(this.length / columns) || 1;
+ });
+ var height = lineHeight * (lineCount + 1);
+ $(textarea).css('height', height);
+ };
+})(jQuery);
+
+(function($) {
+ var comp, by;
+
+ function init() {
+ initEvents();
+ initComparator();
+ }
+
+ function initEvents() {
+ $(document).on("click", 'a.comment-close', function(event) {
+ event.preventDefault();
+ hide($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.vote', function(event) {
+ event.preventDefault();
+ handleVote($(this));
+ });
+ $(document).on("click", 'a.reply', function(event) {
+ event.preventDefault();
+ openReply($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.close-reply', function(event) {
+ event.preventDefault();
+ closeReply($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.sort-option', function(event) {
+ event.preventDefault();
+ handleReSort($(this));
+ });
+ $(document).on("click", 'a.show-proposal', function(event) {
+ event.preventDefault();
+ showProposal($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.hide-proposal', function(event) {
+ event.preventDefault();
+ hideProposal($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.show-propose-change', function(event) {
+ event.preventDefault();
+ showProposeChange($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.hide-propose-change', function(event) {
+ event.preventDefault();
+ hideProposeChange($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.accept-comment', function(event) {
+ event.preventDefault();
+ acceptComment($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.delete-comment', function(event) {
+ event.preventDefault();
+ deleteComment($(this).attr('id').substring(2));
+ });
+ $(document).on("click", 'a.comment-markup', function(event) {
+ event.preventDefault();
+ toggleCommentMarkupBox($(this).attr('id').substring(2));
+ });
+ }
+
+ /**
+ * Set comp, which is a comparator function used for sorting and
+ * inserting comments into the list.
+ */
+ function setComparator() {
+ // If the first three letters are "asc", sort in ascending order
+ // and remove the prefix.
+ if (by.substring(0,3) == 'asc') {
+ var i = by.substring(3);
+ comp = function(a, b) { return a[i] - b[i]; };
+ } else {
+ // Otherwise sort in descending order.
+ comp = function(a, b) { return b[by] - a[by]; };
+ }
+
+ // Reset link styles and format the selected sort option.
+ $('a.sel').attr('href', '#').removeClass('sel');
+ $('a.by' + by).removeAttr('href').addClass('sel');
+ }
+
+ /**
+ * Create a comp function. If the user has preferences stored in
+ * the sortBy cookie, use those, otherwise use the default.
+ */
+ function initComparator() {
+ by = 'rating'; // Default to sort by rating.
+ // If the sortBy cookie is set, use that instead.
+ if (document.cookie.length > 0) {
+ var start = document.cookie.indexOf('sortBy=');
+ if (start != -1) {
+ start = start + 7;
+ var end = document.cookie.indexOf(";", start);
+ if (end == -1) {
+ end = document.cookie.length;
+ by = unescape(document.cookie.substring(start, end));
+ }
+ }
+ }
+ setComparator();
+ }
+
+ /**
+ * Show a comment div.
+ */
+ function show(id) {
+ $('#ao' + id).hide();
+ $('#ah' + id).show();
+ var context = $.extend({id: id}, opts);
+ var popup = $(renderTemplate(popupTemplate, context)).hide();
+ popup.find('textarea[name="proposal"]').hide();
+ popup.find('a.by' + by).addClass('sel');
+ var form = popup.find('#cf' + id);
+ form.submit(function(event) {
+ event.preventDefault();
+ addComment(form);
+ });
+ $('#s' + id).after(popup);
+ popup.slideDown('fast', function() {
+ getComments(id);
+ });
+ }
+
+ /**
+ * Hide a comment div.
+ */
+ function hide(id) {
+ $('#ah' + id).hide();
+ $('#ao' + id).show();
+ var div = $('#sc' + id);
+ div.slideUp('fast', function() {
+ div.remove();
+ });
+ }
+
+ /**
+ * Perform an ajax request to get comments for a node
+ * and insert the comments into the comments tree.
+ */
+ function getComments(id) {
+ $.ajax({
+ type: 'GET',
+ url: opts.getCommentsURL,
+ data: {node: id},
+ success: function(data, textStatus, request) {
+ var ul = $('#cl' + id);
+ var speed = 100;
+ $('#cf' + id)
+ .find('textarea[name="proposal"]')
+ .data('source', data.source);
+
+ if (data.comments.length === 0) {
+ ul.html('<li>No comments yet.</li>');
+ ul.data('empty', true);
+ } else {
+ // If there are comments, sort them and put them in the list.
+ var comments = sortComments(data.comments);
+ speed = data.comments.length * 100;
+ appendComments(comments, ul);
+ ul.data('empty', false);
+ }
+ $('#cn' + id).slideUp(speed + 200);
+ ul.slideDown(speed);
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem retrieving the comments.');
+ },
+ dataType: 'json'
+ });
+ }
+
+ /**
+ * Add a comment via ajax and insert the comment into the comment tree.
+ */
+ function addComment(form) {
+ var node_id = form.find('input[name="node"]').val();
+ var parent_id = form.find('input[name="parent"]').val();
+ var text = form.find('textarea[name="comment"]').val();
+ var proposal = form.find('textarea[name="proposal"]').val();
+
+ if (text == '') {
+ showError('Please enter a comment.');
+ return;
+ }
+
+ // Disable the form that is being submitted.
+ form.find('textarea,input').attr('disabled', 'disabled');
+
+ // Send the comment to the server.
+ $.ajax({
+ type: "POST",
+ url: opts.addCommentURL,
+ dataType: 'json',
+ data: {
+ node: node_id,
+ parent: parent_id,
+ text: text,
+ proposal: proposal
+ },
+ success: function(data, textStatus, error) {
+ // Reset the form.
+ if (node_id) {
+ hideProposeChange(node_id);
+ }
+ form.find('textarea')
+ .val('')
+ .add(form.find('input'))
+ .removeAttr('disabled');
+ var ul = $('#cl' + (node_id || parent_id));
+ if (ul.data('empty')) {
+ $(ul).empty();
+ ul.data('empty', false);
+ }
+ insertComment(data.comment);
+ var ao = $('#ao' + node_id);
+ ao.find('img').attr({'src': opts.commentBrightImage});
+ if (node_id) {
+ // if this was a "root" comment, remove the commenting box
+ // (the user can get it back by reopening the comment popup)
+ $('#ca' + node_id).slideUp();
+ }
+ },
+ error: function(request, textStatus, error) {
+ form.find('textarea,input').removeAttr('disabled');
+ showError('Oops, there was a problem adding the comment.');
+ }
+ });
+ }
+
+ /**
+ * Recursively append comments to the main comment list and children
+ * lists, creating the comment tree.
+ */
+ function appendComments(comments, ul) {
+ $.each(comments, function() {
+ var div = createCommentDiv(this);
+ ul.append($(document.createElement('li')).html(div));
+ appendComments(this.children, div.find('ul.comment-children'));
+ // To avoid stagnating data, don't store the comments children in data.
+ this.children = null;
+ div.data('comment', this);
+ });
+ }
+
+ /**
+ * After adding a new comment, it must be inserted in the correct
+ * location in the comment tree.
+ */
+ function insertComment(comment) {
+ var div = createCommentDiv(comment);
+
+ // To avoid stagnating data, don't store the comments children in data.
+ comment.children = null;
+ div.data('comment', comment);
+
+ var ul = $('#cl' + (comment.node || comment.parent));
+ var siblings = getChildren(ul);
+
+ var li = $(document.createElement('li'));
+ li.hide();
+
+ // Determine where in the parents children list to insert this comment.
+ for(var i=0; i < siblings.length; i++) {
+ if (comp(comment, siblings[i]) <= 0) {
+ $('#cd' + siblings[i].id)
+ .parent()
+ .before(li.html(div));
+ li.slideDown('fast');
+ return;
+ }
+ }
+
+ // If we get here, this comment rates lower than all the others,
+ // or it is the only comment in the list.
+ ul.append(li.html(div));
+ li.slideDown('fast');
+ }
+
+ function acceptComment(id) {
+ $.ajax({
+ type: 'POST',
+ url: opts.acceptCommentURL,
+ data: {id: id},
+ success: function(data, textStatus, request) {
+ $('#cm' + id).fadeOut('fast');
+ $('#cd' + id).removeClass('moderate');
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem accepting the comment.');
+ }
+ });
+ }
+
+ function deleteComment(id) {
+ $.ajax({
+ type: 'POST',
+ url: opts.deleteCommentURL,
+ data: {id: id},
+ success: function(data, textStatus, request) {
+ var div = $('#cd' + id);
+ if (data == 'delete') {
+ // Moderator mode: remove the comment and all children immediately
+ div.slideUp('fast', function() {
+ div.remove();
+ });
+ return;
+ }
+ // User mode: only mark the comment as deleted
+ div
+ .find('span.user-id:first')
+ .text('[deleted]').end()
+ .find('div.comment-text:first')
+ .text('[deleted]').end()
+ .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
+ ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
+ .remove();
+ var comment = div.data('comment');
+ comment.username = '[deleted]';
+ comment.text = '[deleted]';
+ div.data('comment', comment);
+ },
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem deleting the comment.');
+ }
+ });
+ }
+
+ function showProposal(id) {
+ $('#sp' + id).hide();
+ $('#hp' + id).show();
+ $('#pr' + id).slideDown('fast');
+ }
+
+ function hideProposal(id) {
+ $('#hp' + id).hide();
+ $('#sp' + id).show();
+ $('#pr' + id).slideUp('fast');
+ }
+
+ function showProposeChange(id) {
+ $('#pc' + id).hide();
+ $('#hc' + id).show();
+ var textarea = $('#pt' + id);
+ textarea.val(textarea.data('source'));
+ $.fn.autogrow.resize(textarea[0]);
+ textarea.slideDown('fast');
+ }
+
+ function hideProposeChange(id) {
+ $('#hc' + id).hide();
+ $('#pc' + id).show();
+ var textarea = $('#pt' + id);
+ textarea.val('').removeAttr('disabled');
+ textarea.slideUp('fast');
+ }
+
+ function toggleCommentMarkupBox(id) {
+ $('#mb' + id).toggle();
+ }
+
+ /** Handle when the user clicks on a sort by link. */
+ function handleReSort(link) {
+ var classes = link.attr('class').split(/\s+/);
+ for (var i=0; i<classes.length; i++) {
+ if (classes[i] != 'sort-option') {
+ by = classes[i].substring(2);
+ }
+ }
+ setComparator();
+ // Save/update the sortBy cookie.
+ var expiration = new Date();
+ expiration.setDate(expiration.getDate() + 365);
+ document.cookie= 'sortBy=' + escape(by) +
+ ';expires=' + expiration.toUTCString();
+ $('ul.comment-ul').each(function(index, ul) {
+ var comments = getChildren($(ul), true);
+ comments = sortComments(comments);
+ appendComments(comments, $(ul).empty());
+ });
+ }
+
+ /**
+ * Function to process a vote when a user clicks an arrow.
+ */
+ function handleVote(link) {
+ if (!opts.voting) {
+ showError("You'll need to login to vote.");
+ return;
+ }
+
+ var id = link.attr('id');
+ if (!id) {
+ // Didn't click on one of the voting arrows.
+ return;
+ }
+ // If it is an unvote, the new vote value is 0,
+ // Otherwise it's 1 for an upvote, or -1 for a downvote.
+ var value = 0;
+ if (id.charAt(1) != 'u') {
+ value = id.charAt(0) == 'u' ? 1 : -1;
+ }
+ // The data to be sent to the server.
+ var d = {
+ comment_id: id.substring(2),
+ value: value
+ };
+
+ // Swap the vote and unvote links.
+ link.hide();
+ $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
+ .show();
+
+ // The div the comment is displayed in.
+ var div = $('div#cd' + d.comment_id);
+ var data = div.data('comment');
+
+ // If this is not an unvote, and the other vote arrow has
+ // already been pressed, unpress it.
+ if ((d.value !== 0) && (data.vote === d.value * -1)) {
+ $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
+ $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
+ }
+
+ // Update the comments rating in the local data.
+ data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
+ data.vote = d.value;
+ div.data('comment', data);
+
+ // Change the rating text.
+ div.find('.rating:first')
+ .text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
+
+ // Send the vote information to the server.
+ $.ajax({
+ type: "POST",
+ url: opts.processVoteURL,
+ data: d,
+ error: function(request, textStatus, error) {
+ showError('Oops, there was a problem casting that vote.');
+ }
+ });
+ }
+
+ /**
+ * Open a reply form used to reply to an existing comment.
+ */
+ function openReply(id) {
+ // Swap out the reply link for the hide link
+ $('#rl' + id).hide();
+ $('#cr' + id).show();
+
+ // Add the reply li to the children ul.
+ var div = $(renderTemplate(replyTemplate, {id: id})).hide();
+ $('#cl' + id)
+ .prepend(div)
+ // Setup the submit handler for the reply form.
+ .find('#rf' + id)
+ .submit(function(event) {
+ event.preventDefault();
+ addComment($('#rf' + id));
+ closeReply(id);
+ })
+ .find('input[type=button]')
+ .click(function() {
+ closeReply(id);
+ });
+ div.slideDown('fast', function() {
+ $('#rf' + id).find('textarea').focus();
+ });
+ }
+
+ /**
+ * Close the reply form opened with openReply.
+ */
+ function closeReply(id) {
+ // Remove the reply div from the DOM.
+ $('#rd' + id).slideUp('fast', function() {
+ $(this).remove();
+ });
+
+ // Swap out the hide link for the reply link
+ $('#cr' + id).hide();
+ $('#rl' + id).show();
+ }
+
+ /**
+ * Recursively sort a tree of comments using the comp comparator.
+ */
+ function sortComments(comments) {
+ comments.sort(comp);
+ $.each(comments, function() {
+ this.children = sortComments(this.children);
+ });
+ return comments;
+ }
+
+ /**
+ * Get the children comments from a ul. If recursive is true,
+ * recursively include childrens' children.
+ */
+ function getChildren(ul, recursive) {
+ var children = [];
+ ul.children().children("[id^='cd']")
+ .each(function() {
+ var comment = $(this).data('comment');
+ if (recursive)
+ comment.children = getChildren($(this).find('#cl' + comment.id), true);
+ children.push(comment);
+ });
+ return children;
+ }
+
+ /** Create a div to display a comment in. */
+ function createCommentDiv(comment) {
+ if (!comment.displayed && !opts.moderator) {
+ return $('<div class="moderate">Thank you! Your comment will show up '
+ + 'once it is has been approved by a moderator.</div>');
+ }
+ // Prettify the comment rating.
+ comment.pretty_rating = comment.rating + ' point' +
+ (comment.rating == 1 ? '' : 's');
+ // Make a class (for displaying not yet moderated comments differently)
+ comment.css_class = comment.displayed ? '' : ' moderate';
+ // Create a div for this comment.
+ var context = $.extend({}, opts, comment);
+ var div = $(renderTemplate(commentTemplate, context));
+
+ // If the user has voted on this comment, highlight the correct arrow.
+ if (comment.vote) {
+ var direction = (comment.vote == 1) ? 'u' : 'd';
+ div.find('#' + direction + 'v' + comment.id).hide();
+ div.find('#' + direction + 'u' + comment.id).show();
+ }
+
+ if (opts.moderator || comment.text != '[deleted]') {
+ div.find('a.reply').show();
+ if (comment.proposal_diff)
+ div.find('#sp' + comment.id).show();
+ if (opts.moderator && !comment.displayed)
+ div.find('#cm' + comment.id).show();
+ if (opts.moderator || (opts.username == comment.username))
+ div.find('#dc' + comment.id).show();
+ }
+ return div;
+ }
+
+ /**
+ * A simple template renderer. Placeholders such as <%id%> are replaced
+ * by context['id'] with items being escaped. Placeholders such as <#id#>
+ * are not escaped.
+ */
+ function renderTemplate(template, context) {
+ var esc = $(document.createElement('div'));
+
+ function handle(ph, escape) {
+ var cur = context;
+ $.each(ph.split('.'), function() {
+ cur = cur[this];
+ });
+ return escape ? esc.text(cur || "").html() : cur;
+ }
+
+ return template.replace(/<([%#])([\w\.]*)\1>/g, function() {
+ return handle(arguments[2], arguments[1] == '%' ? true : false);
+ });
+ }
+
+ /** Flash an error message briefly. */
+ function showError(message) {
+ $(document.createElement('div')).attr({'class': 'popup-error'})
+ .append($(document.createElement('div'))
+ .attr({'class': 'error-message'}).text(message))
+ .appendTo('body')
+ .fadeIn("slow")
+ .delay(2000)
+ .fadeOut("slow");
+ }
+
+ /** Add a link the user uses to open the comments popup. */
+ $.fn.comment = function() {
+ return this.each(function() {
+ var id = $(this).attr('id').substring(1);
+ var count = COMMENT_METADATA[id];
+ var title = count + ' comment' + (count == 1 ? '' : 's');
+ var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
+ var addcls = count == 0 ? ' nocomment' : '';
+ $(this)
+ .append(
+ $(document.createElement('a')).attr({
+ href: '#',
+ 'class': 'sphinx-comment-open' + addcls,
+ id: 'ao' + id
+ })
+ .append($(document.createElement('img')).attr({
+ src: image,
+ alt: 'comment',
+ title: title
+ }))
+ .click(function(event) {
+ event.preventDefault();
+ show($(this).attr('id').substring(2));
+ })
+ )
+ .append(
+ $(document.createElement('a')).attr({
+ href: '#',
+ 'class': 'sphinx-comment-close hidden',
+ id: 'ah' + id
+ })
+ .append($(document.createElement('img')).attr({
+ src: opts.closeCommentImage,
+ alt: 'close',
+ title: 'close'
+ }))
+ .click(function(event) {
+ event.preventDefault();
+ hide($(this).attr('id').substring(2));
+ })
+ );
+ });
+ };
+
+ var opts = {
+ processVoteURL: '/_process_vote',
+ addCommentURL: '/_add_comment',
+ getCommentsURL: '/_get_comments',
+ acceptCommentURL: '/_accept_comment',
+ deleteCommentURL: '/_delete_comment',
+ commentImage: '/static/_static/comment.png',
+ closeCommentImage: '/static/_static/comment-close.png',
+ loadingImage: '/static/_static/ajax-loader.gif',
+ commentBrightImage: '/static/_static/comment-bright.png',
+ upArrow: '/static/_static/up.png',
+ downArrow: '/static/_static/down.png',
+ upArrowPressed: '/static/_static/up-pressed.png',
+ downArrowPressed: '/static/_static/down-pressed.png',
+ voting: false,
+ moderator: false
+ };
+
+ if (typeof COMMENT_OPTIONS != "undefined") {
+ opts = jQuery.extend(opts, COMMENT_OPTIONS);
+ }
+
+ var popupTemplate = '\
+ <div class="sphinx-comments" id="sc<%id%>">\
+ <p class="sort-options">\
+ Sort by:\
+ <a href="#" class="sort-option byrating">best rated</a>\
+ <a href="#" class="sort-option byascage">newest</a>\
+ <a href="#" class="sort-option byage">oldest</a>\
+ </p>\
+ <div class="comment-header">Comments</div>\
+ <div class="comment-loading" id="cn<%id%>">\
+ loading comments... <img src="<%loadingImage%>" alt="" /></div>\
+ <ul id="cl<%id%>" class="comment-ul"></ul>\
+ <div id="ca<%id%>">\
+ <p class="add-a-comment">Add a comment\
+ (<a href="#" class="comment-markup" id="ab<%id%>">markup</a>):</p>\
+ <div class="comment-markup-box" id="mb<%id%>">\
+ reStructured text markup: <i>*emph*</i>, <b>**strong**</b>, \
+ <code>``code``</code>, \
+ code blocks: <code>::</code> and an indented block after blank line</div>\
+ <form method="post" id="cf<%id%>" class="comment-form" action="">\
+ <textarea name="comment" cols="80"></textarea>\
+ <p class="propose-button">\
+ <a href="#" id="pc<%id%>" class="show-propose-change">\
+ Propose a change ▹\
+ </a>\
+ <a href="#" id="hc<%id%>" class="hide-propose-change">\
+ Propose a change ▿\
+ </a>\
+ </p>\
+ <textarea name="proposal" id="pt<%id%>" cols="80"\
+ spellcheck="false"></textarea>\
+ <input type="submit" value="Add comment" />\
+ <input type="hidden" name="node" value="<%id%>" />\
+ <input type="hidden" name="parent" value="" />\
+ </form>\
+ </div>\
+ </div>';
+
+ var commentTemplate = '\
+ <div id="cd<%id%>" class="sphinx-comment<%css_class%>">\
+ <div class="vote">\
+ <div class="arrow">\
+ <a href="#" id="uv<%id%>" class="vote" title="vote up">\
+ <img src="<%upArrow%>" />\
+ </a>\
+ <a href="#" id="uu<%id%>" class="un vote" title="vote up">\
+ <img src="<%upArrowPressed%>" />\
+ </a>\
+ </div>\
+ <div class="arrow">\
+ <a href="#" id="dv<%id%>" class="vote" title="vote down">\
+ <img src="<%downArrow%>" id="da<%id%>" />\
+ </a>\
+ <a href="#" id="du<%id%>" class="un vote" title="vote down">\
+ <img src="<%downArrowPressed%>" />\
+ </a>\
+ </div>\
+ </div>\
+ <div class="comment-content">\
+ <p class="tagline comment">\
+ <span class="user-id"><%username%></span>\
+ <span class="rating"><%pretty_rating%></span>\
+ <span class="delta"><%time.delta%></span>\
+ </p>\
+ <div class="comment-text comment"><#text#></div>\
+ <p class="comment-opts comment">\
+ <a href="#" class="reply hidden" id="rl<%id%>">reply ▹</a>\
+ <a href="#" class="close-reply" id="cr<%id%>">reply ▿</a>\
+ <a href="#" id="sp<%id%>" class="show-proposal">proposal ▹</a>\
+ <a href="#" id="hp<%id%>" class="hide-proposal">proposal ▿</a>\
+ <a href="#" id="dc<%id%>" class="delete-comment hidden">delete</a>\
+ <span id="cm<%id%>" class="moderation hidden">\
+ <a href="#" id="ac<%id%>" class="accept-comment">accept</a>\
+ </span>\
+ </p>\
+ <pre class="proposal" id="pr<%id%>">\
+<#proposal_diff#>\
+ </pre>\
+ <ul class="comment-children" id="cl<%id%>"></ul>\
+ </div>\
+ <div class="clearleft"></div>\
+ </div>\
+ </div>';
+
+ var replyTemplate = '\
+ <li>\
+ <div class="reply-div" id="rd<%id%>">\
+ <form id="rf<%id%>">\
+ <textarea name="comment" cols="80"></textarea>\
+ <input type="submit" value="Add reply" />\
+ <input type="button" value="Cancel" />\
+ <input type="hidden" name="parent" value="<%id%>" />\
+ <input type="hidden" name="node" value="" />\
+ </form>\
+ </div>\
+ </li>';
+
+ $(document).ready(function() {
+ init();
+ });
+})(jQuery);
+
+$(document).ready(function() {
+ // add comment anchors for all paragraphs that are commentable
+ $('.sphinx-has-comment').comment();
+
+ // highlight search words in search results
+ $("div.context").each(function() {
+ var params = $.getQueryParameters();
+ var terms = (params.q) ? params.q[0].split(/\s+/) : [];
+ var result = $(this);
+ $.each(terms, function() {
+ result.highlightText(this.toLowerCase(), 'highlighted');
+ });
+ });
+
+ // directly open comment window if requested
+ var anchor = document.location.hash;
+ if (anchor.substring(0, 9) == '#comment-') {
+ $('#ao' + anchor.substring(9)).click();
+ document.location.hash = '#s' + anchor.substring(9);
+ }
+});
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/checkers.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/checkers.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/checkers.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/checkers.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,2490 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>1. Available Checkers — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../_static/jquery.js"></script>
+ <script type="text/javascript" src="../_static/underscore.js"></script>
+ <script type="text/javascript" src="../_static/doctools.js"></script>
+ <script type="text/javascript" src="../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../genindex.html" />
+ <link rel="search" title="Search" href="../search.html" />
+ <link rel="next" title="2. User Docs" href="user-docs.html" />
+ <link rel="prev" title="Clang Static Analyzer" href="../ClangStaticAnalyzer.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>1. Available Checkers</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="../ClangStaticAnalyzer.html">Clang Static Analyzer</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="user-docs.html">2. User Docs</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="available-checkers">
+<h1><a class="toc-backref" href="#id26">1. Available Checkers</a><a class="headerlink" href="#available-checkers" title="Permalink to this headline">¶</a></h1>
+<p>The analyzer performs checks that are categorized into families or âcheckersâ.</p>
+<p>The default set of checkers covers a variety of checks targeted at finding security and API usage bugs,
+dead code, and other logic errors. See the <a class="reference internal" href="#default-checkers"><span class="std std-ref">Default Checkers</span></a> checkers list below.</p>
+<p>In addition to these, the analyzer contains a number of <a class="reference internal" href="#alpha-checkers"><span class="std std-ref">Experimental Checkers</span></a> (aka <em>alpha</em> checkers).
+These checkers are under development and are switched off by default. They may crash or emit a higher number of false positives.</p>
+<p>The <a class="reference internal" href="#id11"><span class="std std-ref">debug</span></a> package contains checkers for analyzer developers for debugging purposes.</p>
+<div class="contents topic" id="table-of-contents">
+<p class="topic-title first">Table of Contents</p>
+<ul class="simple">
+<li><a class="reference internal" href="#available-checkers" id="id26">Available Checkers</a><ul>
+<li><a class="reference internal" href="#default-checkers" id="id27">Default Checkers</a><ul>
+<li><a class="reference internal" href="#core" id="id28">core</a><ul>
+<li><a class="reference internal" href="#core-callandmessage-c-c-objc" id="id29">core.CallAndMessage (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#core-dividezero-c-c-objc" id="id30">core.DivideZero (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#core-nonnullparamchecker-c-c-objc" id="id31">core.NonNullParamChecker (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#core-nulldereference-c-c-objc" id="id32">core.NullDereference (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#core-stackaddressescape-c" id="id33">core.StackAddressEscape (C)</a></li>
+<li><a class="reference internal" href="#core-undefinedbinaryoperatorresult-c" id="id34">core.UndefinedBinaryOperatorResult (C)</a></li>
+<li><a class="reference internal" href="#core-vlasize-c" id="id35">core.VLASize (C)</a></li>
+<li><a class="reference internal" href="#core-uninitialized-arraysubscript-c" id="id36">core.uninitialized.ArraySubscript (C)</a></li>
+<li><a class="reference internal" href="#core-uninitialized-assign-c" id="id37">core.uninitialized.Assign (C)</a></li>
+<li><a class="reference internal" href="#core-uninitialized-branch-c" id="id38">core.uninitialized.Branch (C)</a></li>
+<li><a class="reference internal" href="#core-uninitialized-capturedblockvariable-c" id="id39">core.uninitialized.CapturedBlockVariable (C)</a></li>
+<li><a class="reference internal" href="#core-uninitialized-undefreturn-c" id="id40">core.uninitialized.UndefReturn (C)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#cplusplus" id="id41">cplusplus</a><ul>
+<li><a class="reference internal" href="#cplusplus-innerpointer" id="id42">cplusplus.InnerPointer</a></li>
+<li><a class="reference internal" href="#cplusplus-newdelete-c" id="id43">cplusplus.NewDelete (C++)</a></li>
+<li><a class="reference internal" href="#cplusplus-newdeleteleaks-c" id="id44">cplusplus.NewDeleteLeaks (C++)</a></li>
+<li><a class="reference internal" href="#cplusplus-selfassignment-c" id="id45">cplusplus.SelfAssignment (C++)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#deadcode" id="id46">deadcode</a><ul>
+<li><a class="reference internal" href="#deadcode-deadstores-c" id="id47">deadcode.DeadStores (C)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#nullability" id="id48">nullability</a><ul>
+<li><a class="reference internal" href="#nullability-nullpassedtononnull-objc" id="id49">nullability.NullPassedToNonnull (ObjC)</a></li>
+<li><a class="reference internal" href="#nullability-nullreturnedfromnonnull-objc" id="id50">nullability.NullReturnedFromNonnull (ObjC)</a></li>
+<li><a class="reference internal" href="#nullability-nullabledereferenced-objc" id="id51">nullability.NullableDereferenced (ObjC)</a></li>
+<li><a class="reference internal" href="#nullability-nullablepassedtononnull-objc" id="id52">nullability.NullablePassedToNonnull (ObjC)</a></li>
+<li><a class="reference internal" href="#nullability-nullablereturnedfromnonnull-objc" id="id53">nullability.NullableReturnedFromNonnull (ObjC)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#optin" id="id54">optin</a><ul>
+<li><a class="reference internal" href="#optin-cplusplus-uninitializedobject-c" id="id55">optin.cplusplus.UninitializedObject (C++)</a></li>
+<li><a class="reference internal" href="#optin-cplusplus-virtualcall-c" id="id56">optin.cplusplus.VirtualCall (C++)</a></li>
+<li><a class="reference internal" href="#optin-mpi-mpi-checker-c" id="id57">optin.mpi.MPI-Checker (C)</a></li>
+<li><a class="reference internal" href="#optin-osx-cocoa-localizability-emptylocalizationcontextchecker-objc" id="id58">optin.osx.cocoa.localizability.EmptyLocalizationContextChecker (ObjC)</a></li>
+<li><a class="reference internal" href="#optin-osx-cocoa-localizability-nonlocalizedstringchecker-objc" id="id59">optin.osx.cocoa.localizability.NonLocalizedStringChecker (ObjC)</a></li>
+<li><a class="reference internal" href="#optin-performance-gcdantipattern" id="id60">optin.performance.GCDAntipattern</a></li>
+<li><a class="reference internal" href="#optin-performance-padding" id="id61">optin.performance.Padding</a></li>
+<li><a class="reference internal" href="#optin-portability-unixapi" id="id62">optin.portability.UnixAPI</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#security" id="id63">security</a><ul>
+<li><a class="reference internal" href="#security-floatloopcounter-c" id="id64">security.FloatLoopCounter (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-uncheckedreturn-c" id="id65">security.insecureAPI.UncheckedReturn (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-bcmp-c" id="id66">security.insecureAPI.bcmp (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-bcopy-c" id="id67">security.insecureAPI.bcopy (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-bzero-c" id="id68">security.insecureAPI.bzero (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-getpw-c" id="id69">security.insecureAPI.getpw (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-gets-c" id="id70">security.insecureAPI.gets (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-mkstemp-c" id="id71">security.insecureAPI.mkstemp (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-mktemp-c" id="id72">security.insecureAPI.mktemp (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-rand-c" id="id73">security.insecureAPI.rand (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-strcpy-c" id="id74">security.insecureAPI.strcpy (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-vfork-c" id="id75">security.insecureAPI.vfork (C)</a></li>
+<li><a class="reference internal" href="#security-insecureapi-deprecatedorunsafebufferhandling-c" id="id76">security.insecureAPI.DeprecatedOrUnsafeBufferHandling (C)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#unix" id="id77">unix</a><ul>
+<li><a class="reference internal" href="#unix-api-c" id="id78">unix.API (C)</a></li>
+<li><a class="reference internal" href="#unix-malloc-c" id="id79">unix.Malloc (C)</a></li>
+<li><a class="reference internal" href="#unix-mallocsizeof-c" id="id80">unix.MallocSizeof (C)</a></li>
+<li><a class="reference internal" href="#unix-mismatcheddeallocator-c-c" id="id81">unix.MismatchedDeallocator (C, C++)</a></li>
+<li><a class="reference internal" href="#unix-vfork-c" id="id82">unix.Vfork (C)</a></li>
+<li><a class="reference internal" href="#unix-cstring-badsizearg-c" id="id83">unix.cstring.BadSizeArg (C)</a></li>
+<li><a class="reference internal" href="#unix-cstrisng-nullarg-c" id="id84">unix.cstrisng.NullArg (C)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#osx" id="id85">osx</a><ul>
+<li><a class="reference internal" href="#osx-api-c" id="id86">osx.API (C)</a></li>
+<li><a class="reference internal" href="#osx-numberobjectconversion-c-c-objc" id="id87">osx.NumberObjectConversion (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#osx-objcproperty-objc" id="id88">osx.ObjCProperty (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-seckeychainapi-c" id="id89">osx.SecKeychainAPI (C)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-atsync-objc" id="id90">osx.cocoa.AtSync (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-autoreleasewrite" id="id91">osx.cocoa.AutoreleaseWrite</a></li>
+<li><a class="reference internal" href="#osx-cocoa-classrelease-objc" id="id92">osx.cocoa.ClassRelease (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-dealloc-objc" id="id93">osx.cocoa.Dealloc (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-incompatiblemethodtypes-objc" id="id94">osx.cocoa.IncompatibleMethodTypes (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-loops" id="id95">osx.cocoa.Loops</a></li>
+<li><a class="reference internal" href="#osx-cocoa-missingsupercall-objc" id="id96">osx.cocoa.MissingSuperCall (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-nsautoreleasepool-objc" id="id97">osx.cocoa.NSAutoreleasePool (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-nserror-objc" id="id98">osx.cocoa.NSError (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-nilarg-objc" id="id99">osx.cocoa.NilArg (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-nonnilreturnvalue" id="id100">osx.cocoa.NonNilReturnValue</a></li>
+<li><a class="reference internal" href="#osx-cocoa-objcgenerics-objc" id="id101">osx.cocoa.ObjCGenerics (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-retaincount-objc" id="id102">osx.cocoa.RetainCount (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-runloopautoreleaseleak" id="id103">osx.cocoa.RunLoopAutoreleaseLeak</a></li>
+<li><a class="reference internal" href="#osx-cocoa-selfinit-objc" id="id104">osx.cocoa.SelfInit (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-superdealloc-objc" id="id105">osx.cocoa.SuperDealloc (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-unusedivars-objc" id="id106">osx.cocoa.UnusedIvars (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-cocoa-variadicmethodtypes-objc" id="id107">osx.cocoa.VariadicMethodTypes (ObjC)</a></li>
+<li><a class="reference internal" href="#osx-corefoundation-cferror-c" id="id108">osx.coreFoundation.CFError (C)</a></li>
+<li><a class="reference internal" href="#osx-corefoundation-cfnumber-c" id="id109">osx.coreFoundation.CFNumber (C)</a></li>
+<li><a class="reference internal" href="#osx-corefoundation-cfretainrelease-c" id="id110">osx.coreFoundation.CFRetainRelease (C)</a></li>
+<li><a class="reference internal" href="#osx-corefoundation-containers-outofbounds-c" id="id111">osx.coreFoundation.containers.OutOfBounds (C)</a></li>
+<li><a class="reference internal" href="#osx-corefoundation-containers-pointersizedvalues-c" id="id112">osx.coreFoundation.containers.PointerSizedValues (C)</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li><a class="reference internal" href="#experimental-checkers" id="id113">Experimental Checkers</a><ul>
+<li><a class="reference internal" href="#alpha-clone" id="id114">alpha.clone</a><ul>
+<li><a class="reference internal" href="#alpha-clone-clonechecker-c-c-objc" id="id115">alpha.clone.CloneChecker (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-core-boolassignment-objc" id="id116">alpha.core.BoolAssignment (ObjC)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-core" id="id117">alpha.core</a><ul>
+<li><a class="reference internal" href="#alpha-core-callandmessageuninitrefarg-c-c-objc" id="id118">alpha.core.CallAndMessageUnInitRefArg (C,C++, ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-core-castsize-c" id="id119">alpha.core.CastSize (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-casttostruct-c-c" id="id120">alpha.core.CastToStruct (C, C++)</a></li>
+<li><a class="reference internal" href="#alpha-core-conversion-c-c-objc" id="id121">alpha.core.Conversion (C, C++, ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-core-dynamictypechecker-objc" id="id122">alpha.core.DynamicTypeChecker (ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-core-fixedaddr-c" id="id123">alpha.core.FixedAddr (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-identicalexpr-c-c" id="id124">alpha.core.IdenticalExpr (C, C++)</a></li>
+<li><a class="reference internal" href="#alpha-core-pointerarithm-c" id="id125">alpha.core.PointerArithm (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-pointersub-c" id="id126">alpha.core.PointerSub (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-sizeofptr-c" id="id127">alpha.core.SizeofPtr (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-stackaddressasyncescape-c" id="id128">alpha.core.StackAddressAsyncEscape (C)</a></li>
+<li><a class="reference internal" href="#alpha-core-testafterdivzero-c" id="id129">alpha.core.TestAfterDivZero (C)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-cplusplus" id="id130">alpha.cplusplus</a><ul>
+<li><a class="reference internal" href="#alpha-cplusplus-deletewithnonvirtualdtor-c" id="id131">alpha.cplusplus.DeleteWithNonVirtualDtor (C++)</a></li>
+<li><a class="reference internal" href="#alpha-cplusplus-enumcastoutofrange-c" id="id132">alpha.cplusplus.EnumCastOutOfRange (C++)</a></li>
+<li><a class="reference internal" href="#alpha-cplusplus-invalidatediterator-c" id="id133">alpha.cplusplus.InvalidatedIterator (C++)</a></li>
+<li><a class="reference internal" href="#alpha-cplusplus-iteratorrange-c" id="id134">alpha.cplusplus.IteratorRange (C++)</a></li>
+<li><a class="reference internal" href="#alpha-cplusplus-mismatchediterator-c" id="id135">alpha.cplusplus.MismatchedIterator (C++)</a></li>
+<li><a class="reference internal" href="#alpha-cplusplus-misusedmovedobject-c" id="id136">alpha.cplusplus.MisusedMovedObject (C++)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-deadcode" id="id137">alpha.deadcode</a><ul>
+<li><a class="reference internal" href="#alpha-deadcode-unreachablecode-c-c" id="id138">alpha.deadcode.UnreachableCode (C, C++)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-llvm" id="id139">alpha.llvm</a><ul>
+<li><a class="reference internal" href="#alpha-llvm-conventions" id="id140">alpha.llvm.Conventions</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-osx" id="id141">alpha.osx</a><ul>
+<li><a class="reference internal" href="#alpha-osx-cocoa-directivarassignment-objc" id="id142">alpha.osx.cocoa.DirectIvarAssignment (ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-osx-cocoa-directivarassignmentforannotatedfunctions-objc" id="id143">alpha.osx.cocoa.DirectIvarAssignmentForAnnotatedFunctions (ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-osx-cocoa-instancevariableinvalidation-objc" id="id144">alpha.osx.cocoa.InstanceVariableInvalidation (ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-osx-cocoa-missinginvalidationmethod-objc" id="id145">alpha.osx.cocoa.MissingInvalidationMethod (ObjC)</a></li>
+<li><a class="reference internal" href="#alpha-osx-cocoa-localizability-pluralmisusechecker-objc" id="id146">alpha.osx.cocoa.localizability.PluralMisuseChecker (ObjC)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-security" id="id147">alpha.security</a><ul>
+<li><a class="reference internal" href="#alpha-security-arraybound-c" id="id148">alpha.security.ArrayBound (C)</a></li>
+<li><a class="reference internal" href="#alpha-security-arrayboundv2-c" id="id149">alpha.security.ArrayBoundV2 (C)</a></li>
+<li><a class="reference internal" href="#alpha-security-mallocoverflow-c" id="id150">alpha.security.MallocOverflow (C)</a></li>
+<li><a class="reference internal" href="#alpha-security-mmapwriteexec-c" id="id151">alpha.security.MmapWriteExec (C)</a></li>
+<li><a class="reference internal" href="#alpha-security-returnptrrange-c" id="id152">alpha.security.ReturnPtrRange (C)</a></li>
+<li><a class="reference internal" href="#alpha-security-taint-taintpropagation-c-c" id="id153">alpha.security.taint.TaintPropagation (C, C++)</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#alpha-unix" id="id154">alpha.unix</a><ul>
+<li><a class="reference internal" href="#alpha-unix-blockincriticalsection-c" id="id155">alpha.unix.BlockInCriticalSection (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-chroot-c" id="id156">alpha.unix.Chroot (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-pthreadlock-c" id="id157">alpha.unix.PthreadLock (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-simplestream-c" id="id158">alpha.unix.SimpleStream (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-stream-c" id="id159">alpha.unix.Stream (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-cstring-bufferoverlap-c" id="id160">alpha.unix.cstring.BufferOverlap (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-cstring-notnullterminated-c" id="id161">alpha.unix.cstring.NotNullTerminated (C)</a></li>
+<li><a class="reference internal" href="#alpha-unix-cstring-outofbounds-c" id="id162">alpha.unix.cstring.OutOfBounds (C)</a></li>
+<li><a class="reference internal" href="#alpha-nondeterminism-pointeriteration-c" id="id163">alpha.nondeterminism.PointerIteration (C++)</a></li>
+<li><a class="reference internal" href="#alpha-nondeterminism-pointersorting-c" id="id164">alpha.nondeterminism.PointerSorting (C++)</a></li>
+</ul>
+</li>
+</ul>
+</li>
+<li><a class="reference internal" href="#debug-checkers" id="id165">Debug Checkers</a><ul>
+<li><a class="reference internal" href="#debug" id="id166">debug</a><ul>
+<li><a class="reference internal" href="#debug-analysisorder" id="id167">debug.AnalysisOrder</a></li>
+<li><a class="reference internal" href="#debug-configdumper" id="id168">debug.ConfigDumper</a></li>
+<li><a class="reference internal" href="#debug-dumpcfg-display" id="id169">debug.DumpCFG Display</a></li>
+<li><a class="reference internal" href="#debug-dumpcallgraph" id="id170">debug.DumpCallGraph</a></li>
+<li><a class="reference internal" href="#debug-dumpcalls" id="id171">debug.DumpCalls</a></li>
+<li><a class="reference internal" href="#debug-dumpdominators" id="id172">debug.DumpDominators</a></li>
+<li><a class="reference internal" href="#debug-dumplivevars" id="id173">debug.DumpLiveVars</a></li>
+<li><a class="reference internal" href="#debug-dumptraversal" id="id174">debug.DumpTraversal</a></li>
+<li><a class="reference internal" href="#debug-exprinspection" id="id175">debug.ExprInspection</a></li>
+<li><a class="reference internal" href="#debug-stats" id="id176">debug.Stats</a></li>
+<li><a class="reference internal" href="#debug-tainttest" id="id177">debug.TaintTest</a></li>
+<li><a class="reference internal" href="#debug-viewcfg" id="id178">debug.ViewCFG</a></li>
+<li><a class="reference internal" href="#debug-viewcallgraph" id="id179">debug.ViewCallGraph</a></li>
+<li><a class="reference internal" href="#debug-viewexplodedgraph" id="id180">debug.ViewExplodedGraph</a></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="default-checkers">
+<span id="id1"></span><h2><a class="toc-backref" href="#id27">1.1. Default Checkers</a><a class="headerlink" href="#default-checkers" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="core">
+<span id="core-checkers"></span><h3><a class="toc-backref" href="#id28">1.1.1. core</a><a class="headerlink" href="#core" title="Permalink to this headline">¶</a></h3>
+<p>Models core language features and contains general-purpose checkers such as division by zero,
+null pointer dereference, usage of uninitialized values, etc.
+<em>These checkers must be always switched on as other checker rely on them.</em></p>
+<div class="section" id="core-callandmessage-c-c-objc">
+<span id="core-callandmessage"></span><h4><a class="toc-backref" href="#id29">1.1.1.1. core.CallAndMessage (C, C++, ObjC)</a><a class="headerlink" href="#core-callandmessage-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<blockquote>
+<div>Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers).</div></blockquote>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="c1">//C</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="p">(</span><span class="o">*</span><span class="n">foo</span><span class="p">)(</span><span class="kt">void</span><span class="p">);</span>
+ <span class="n">foo</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">foo</span><span class="p">();</span> <span class="c1">// warn: function pointer is null</span>
+ <span class="p">}</span>
+
+ <span class="c1">// C++</span>
+ <span class="k">class</span> <span class="n">C</span> <span class="p">{</span>
+ <span class="nl">public</span><span class="p">:</span>
+ <span class="kt">void</span> <span class="n">f</span><span class="p">();</span>
+ <span class="p">};</span>
+
+ <span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">C</span> <span class="o">*</span><span class="n">pc</span><span class="p">;</span>
+ <span class="n">pc</span><span class="o">-></span><span class="n">f</span><span class="p">();</span> <span class="c1">// warn: object pointer is uninitialized</span>
+ <span class="p">}</span>
+
+ <span class="c1">// C++</span>
+ <span class="k">class</span> <span class="n">C</span> <span class="p">{</span>
+ <span class="nl">public</span><span class="p">:</span>
+ <span class="kt">void</span> <span class="n">f</span><span class="p">();</span>
+ <span class="p">};</span>
+
+ <span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">C</span> <span class="o">*</span><span class="n">pc</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">pc</span><span class="o">-></span><span class="n">f</span><span class="p">();</span> <span class="c1">// warn: object pointer is null</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Objective-C</span>
+ <span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="bp">NSObject</span>
+ <span class="k">@property</span> <span class="p">(</span><span class="k">readwrite</span><span class="p">,</span><span class="k">assign</span><span class="p">)</span> <span class="kt">id</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">-</span> <span class="p">(</span><span class="kt">long</span> <span class="kt">double</span><span class="p">)</span><span class="n">longDoubleM</span><span class="p">;</span>
+ <span class="k">@end</span>
+
+ <span class="kt">void</span> <span class="n">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">MyClass</span> <span class="o">*</span><span class="n">obj1</span><span class="p">;</span>
+ <span class="kt">long</span> <span class="kt">double</span> <span class="n">ld1</span> <span class="o">=</span> <span class="p">[</span><span class="n">obj1</span> <span class="n">longDoubleM</span><span class="p">];</span>
+ <span class="c1">// warn: receiver is uninitialized</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Objective-C</span>
+ <span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="bp">NSObject</span>
+ <span class="k">@property</span> <span class="p">(</span><span class="k">readwrite</span><span class="p">,</span><span class="k">assign</span><span class="p">)</span> <span class="kt">id</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">-</span> <span class="p">(</span><span class="kt">long</span> <span class="kt">double</span><span class="p">)</span><span class="n">longDoubleM</span><span class="p">;</span>
+ <span class="k">@end</span>
+
+ <span class="kt">void</span> <span class="n">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">MyClass</span> <span class="o">*</span><span class="n">obj1</span><span class="p">;</span>
+ <span class="kt">id</span> <span class="n">i</span> <span class="o">=</span> <span class="n">obj1</span><span class="p">.</span><span class="n">x</span><span class="p">;</span> <span class="c1">// warn: uninitialized object pointer</span>
+ <span class="p">}</span>
+
+ <span class="c1">// Objective-C</span>
+ <span class="k">@interface</span> <span class="nc">Subscriptable</span> : <span class="bp">NSObject</span>
+ <span class="o">-</span> <span class="p">(</span><span class="kt">id</span><span class="p">)</span><span class="nl">objectAtIndexedSubscript</span><span class="p">:(</span><span class="kt">unsigned</span> <span class="kt">int</span><span class="p">)</span><span class="n">index</span><span class="p">;</span>
+ <span class="k">@end</span>
+
+ <span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="nc">Subscriptable</span>
+ <span class="k">@property</span> <span class="p">(</span><span class="k">readwrite</span><span class="p">,</span><span class="k">assign</span><span class="p">)</span> <span class="kt">id</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">-</span> <span class="p">(</span><span class="kt">long</span> <span class="kt">double</span><span class="p">)</span><span class="n">longDoubleM</span><span class="p">;</span>
+ <span class="k">@end</span>
+
+ <span class="kt">void</span> <span class="n">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">MyClass</span> <span class="o">*</span><span class="n">obj1</span><span class="p">;</span>
+ <span class="kt">id</span> <span class="n">i</span> <span class="o">=</span> <span class="n">obj1</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span> <span class="c1">// warn: uninitialized object pointer</span>
+ <span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-dividezero-c-c-objc">
+<span id="core-dividezero"></span><h4><a class="toc-backref" href="#id30">1.1.1.2. core.DivideZero (C, C++, ObjC)</a><a class="headerlink" href="#core-dividezero-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<blockquote>
+<div>Check for division by zero.</div></blockquote>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">z</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">z</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">/</span> <span class="n">z</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">x</span> <span class="o">%</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-nonnullparamchecker-c-c-objc">
+<span id="core-nonnullparamchecker"></span><h4><a class="toc-backref" href="#id31">1.1.1.3. core.NonNullParamChecker (C, C++, ObjC)</a><a class="headerlink" href="#core-nonnullparamchecker-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for null pointers passed as arguments to a function whose arguments are references or marked with the ânonnullâ attribute.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="nf">f</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="n">__attribute__</span><span class="p">((</span><span class="n">nonnull</span><span class="p">));</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">p</span><span class="p">)</span>
+ <span class="n">f</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-nulldereference-c-c-objc">
+<span id="core-nulldereference"></span><h4><a class="toc-backref" href="#id32">1.1.1.4. core.NullDereference (C, C++, ObjC)</a><a class="headerlink" href="#core-nulldereference-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for dereferences of null pointers.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="c1">// C</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">p</span><span class="p">)</span>
+ <span class="k">return</span><span class="p">;</span>
+
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="n">p</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">p</span><span class="p">)</span>
+ <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C++</span>
+<span class="k">class</span> <span class="n">C</span> <span class="p">{</span>
+<span class="nl">public</span><span class="p">:</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">C</span> <span class="o">*</span><span class="n">pc</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">k</span> <span class="o">=</span> <span class="n">pc</span><span class="o">-></span><span class="n">x</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// Objective-C</span>
+<span class="k">@interface</span> <span class="bp">MyClass</span> <span class="p">{</span>
+<span class="k">@public</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="kt">void</span> <span class="n">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">MyClass</span> <span class="o">*</span><span class="n">obj</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">obj</span><span class="o">-></span><span class="n">x</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-stackaddressescape-c">
+<span id="core-stackaddressescape"></span><h4><a class="toc-backref" href="#id33">1.1.1.5. core.StackAddressEscape (C)</a><a class="headerlink" href="#core-stackaddressescape-c" title="Permalink to this headline">¶</a></h4>
+<p>Check that addresses to stack memory do not escape the function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">char</span> <span class="k">const</span> <span class="o">*</span><span class="n">p</span><span class="p">;</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="k">const</span> <span class="n">str</span><span class="p">[]</span> <span class="o">=</span> <span class="s">"string"</span><span class="p">;</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="n">str</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span><span class="o">*</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">__builtin_alloca</span><span class="p">(</span><span class="mi">12</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">static</span> <span class="kt">int</span> <span class="o">*</span><span class="n">x</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">y</span><span class="p">;</span>
+ <span class="n">x</span> <span class="o">=</span> <span class="o">&</span><span class="n">y</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-undefinedbinaryoperatorresult-c">
+<span id="core-undefinedbinaryoperatorresult"></span><h4><a class="toc-backref" href="#id34">1.1.1.6. core.UndefinedBinaryOperatorResult (C)</a><a class="headerlink" href="#core-undefinedbinaryoperatorresult-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for undefined results of binary operators.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">x</span> <span class="o">+</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn: left operand is garbage</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-vlasize-c">
+<span id="core-vlasize"></span><h4><a class="toc-backref" href="#id35">1.1.1.7. core.VLASize (C)</a><a class="headerlink" href="#core-vlasize-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for declarations of Variable Length Arrays of undefined or zero size.</p>
+<blockquote>
+<div>Check for declarations of VLA of undefined or zero size.</div></blockquote>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">vla1</span><span class="p">[</span><span class="n">x</span><span class="p">];</span> <span class="c1">// warn: garbage as size</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">vla2</span><span class="p">[</span><span class="n">x</span><span class="p">];</span> <span class="c1">// warn: zero size</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-uninitialized-arraysubscript-c">
+<span id="core-uninitialized-arraysubscript"></span><h4><a class="toc-backref" href="#id36">1.1.1.8. core.uninitialized.ArraySubscript (C)</a><a class="headerlink" href="#core-uninitialized-arraysubscript-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for uninitialized values used as array subscripts.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">i</span><span class="p">,</span> <span class="n">a</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="n">a</span><span class="p">[</span><span class="n">i</span><span class="p">];</span> <span class="c1">// warn: array subscript is undefined</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-uninitialized-assign-c">
+<span id="core-uninitialized-assign"></span><h4><a class="toc-backref" href="#id37">1.1.1.9. core.uninitialized.Assign (C)</a><a class="headerlink" href="#core-uninitialized-assign-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for assigning uninitialized values.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="n">x</span> <span class="o">|=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn: left expression is uninitialized</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-uninitialized-branch-c">
+<span id="core-uninitialized-branch"></span><h4><a class="toc-backref" href="#id38">1.1.1.10. core.uninitialized.Branch (C)</a><a class="headerlink" href="#core-uninitialized-branch-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for uninitialized values used as branch conditions.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="c1">// warn</span>
+ <span class="k">return</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-uninitialized-capturedblockvariable-c">
+<span id="core-uninitialized-capturedblockvariable"></span><h4><a class="toc-backref" href="#id39">1.1.1.11. core.uninitialized.CapturedBlockVariable (C)</a><a class="headerlink" href="#core-uninitialized-capturedblockvariable-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for blocks that capture uninitialized values.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">^</span><span class="p">{</span> <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">x</span><span class="p">;</span> <span class="p">}();</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="core-uninitialized-undefreturn-c">
+<span id="core-uninitialized-undefreturn"></span><h4><a class="toc-backref" href="#id40">1.1.1.12. core.uninitialized.UndefReturn (C)</a><a class="headerlink" href="#core-uninitialized-undefreturn-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for uninitialized values being returned to the caller.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="cplusplus">
+<span id="cplusplus-checkers"></span><h3><a class="toc-backref" href="#id41">1.1.2. cplusplus</a><a class="headerlink" href="#cplusplus" title="Permalink to this headline">¶</a></h3>
+<p>C++ Checkers.</p>
+<div class="section" id="cplusplus-innerpointer">
+<span id="id2"></span><h4><a class="toc-backref" href="#id42">1.1.2.1. cplusplus.InnerPointer</a><a class="headerlink" href="#cplusplus-innerpointer" title="Permalink to this headline">¶</a></h4>
+<p>Check for inner pointers of C++ containers used after re/deallocation.</p>
+</div>
+<div class="section" id="cplusplus-newdelete-c">
+<span id="cplusplus-newdelete"></span><h4><a class="toc-backref" href="#id43">1.1.2.2. cplusplus.NewDelete (C++)</a><a class="headerlink" href="#cplusplus-newdelete-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for double-free and use-after-free problems. Traces memory managed by new/delete.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">f</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">testUseMiddleArgAfterDelete</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">delete</span> <span class="n">p</span><span class="p">;</span>
+ <span class="n">f</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn: use after free</span>
+<span class="p">}</span>
+
+<span class="k">class</span> <span class="nc">SomeClass</span> <span class="p">{</span>
+<span class="k">public</span><span class="o">:</span>
+ <span class="kt">void</span> <span class="n">f</span><span class="p">();</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">SomeClass</span> <span class="o">*</span><span class="n">c</span> <span class="o">=</span> <span class="k">new</span> <span class="n">SomeClass</span><span class="p">;</span>
+ <span class="k">delete</span> <span class="n">c</span><span class="p">;</span>
+ <span class="n">c</span><span class="o">-></span><span class="n">f</span><span class="p">();</span> <span class="c1">// warn: use after free</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">__builtin_alloca</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span>
+ <span class="k">delete</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn: deleting memory allocated by alloca</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">;</span>
+ <span class="k">delete</span> <span class="n">p</span><span class="p">;</span>
+ <span class="k">delete</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn: attempt to free released</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">i</span><span class="p">;</span>
+ <span class="k">delete</span> <span class="o">&</span><span class="n">i</span><span class="p">;</span> <span class="c1">// warn: delete address of local</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
+ <span class="k">delete</span><span class="p">[]</span> <span class="p">(</span><span class="o">++</span><span class="n">p</span><span class="p">);</span>
+ <span class="c1">// warn: argument to 'delete[]' is offset by 4 bytes</span>
+ <span class="c1">// from the start of memory allocated by 'new[]'</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="cplusplus-newdeleteleaks-c">
+<span id="cplusplus-newdeleteleaks"></span><h4><a class="toc-backref" href="#id44">1.1.2.3. cplusplus.NewDeleteLeaks (C++)</a><a class="headerlink" href="#cplusplus-newdeleteleaks-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for memory leaks. Traces memory managed by new/delete.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">;</span>
+<span class="p">}</span> <span class="c1">// warn</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="cplusplus-selfassignment-c">
+<span id="cplusplus-selfassignment"></span><h4><a class="toc-backref" href="#id45">1.1.2.4. cplusplus.SelfAssignment (C++)</a><a class="headerlink" href="#cplusplus-selfassignment-c" title="Permalink to this headline">¶</a></h4>
+<p>Checks C++ copy and move assignment operators for self assignment.</p>
+</div>
+</div>
+<div class="section" id="deadcode">
+<span id="deadcode-checkers"></span><h3><a class="toc-backref" href="#id46">1.1.3. deadcode</a><a class="headerlink" href="#deadcode" title="Permalink to this headline">¶</a></h3>
+<p>Dead Code Checkers.</p>
+<div class="section" id="deadcode-deadstores-c">
+<span id="deadcode-deadstores"></span><h4><a class="toc-backref" href="#id47">1.1.3.1. deadcode.DeadStores (C)</a><a class="headerlink" href="#deadcode-deadstores-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for values stored to variables that are never read afterwards.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="nullability">
+<span id="nullability-checkers"></span><h3><a class="toc-backref" href="#id48">1.1.4. nullability</a><a class="headerlink" href="#nullability" title="Permalink to this headline">¶</a></h3>
+<p>Objective C checkers that warn for null pointer passing and dereferencing errors.</p>
+<div class="section" id="nullability-nullpassedtononnull-objc">
+<span id="nullability-nullpassedtononnull"></span><h4><a class="toc-backref" href="#id49">1.1.4.1. nullability.NullPassedToNonnull (ObjC)</a><a class="headerlink" href="#nullability-nullpassedtononnull-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns when a null pointer is passed to a pointer which has a _Nonnull type.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="n">name</span> <span class="o">!=</span> <span class="nb">nil</span><span class="p">)</span>
+ <span class="k">return</span><span class="p">;</span>
+<span class="c1">// Warning: nil passed to a callee that requires a non-null 1st parameter</span>
+<span class="bp">NSString</span> <span class="o">*</span><span class="n">greeting</span> <span class="o">=</span> <span class="p">[</span><span class="s">@"Hello "</span> <span class="nl">stringByAppendingString</span><span class="p">:</span><span class="n">name</span><span class="p">];</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="nullability-nullreturnedfromnonnull-objc">
+<span id="nullability-nullreturnedfromnonnull"></span><h4><a class="toc-backref" href="#id50">1.1.4.2. nullability.NullReturnedFromNonnull (ObjC)</a><a class="headerlink" href="#nullability-nullreturnedfromnonnull-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns when a null pointer is returned from a function that has _Nonnull return type.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="p">-</span> <span class="p">(</span><span class="n">nonnull</span> <span class="kt">id</span><span class="p">)</span><span class="nf">firstChild</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">result</span> <span class="o">=</span> <span class="nb">nil</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">([</span><span class="n">_children</span> <span class="n">count</span><span class="p">]</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span>
+ <span class="n">result</span> <span class="o">=</span> <span class="n">_children</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
+
+ <span class="c1">// Warning: nil returned from a method that is expected</span>
+ <span class="c1">// to return a non-null value</span>
+ <span class="k">return</span> <span class="n">result</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="nullability-nullabledereferenced-objc">
+<span id="nullability-nullabledereferenced"></span><h4><a class="toc-backref" href="#id51">1.1.4.3. nullability.NullableDereferenced (ObjC)</a><a class="headerlink" href="#nullability-nullabledereferenced-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns when a nullable pointer is dereferenced.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">struct</span> <span class="n">LinkedList</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">data</span><span class="p">;</span>
+ <span class="k">struct</span> <span class="n">LinkedList</span> <span class="o">*</span><span class="n">next</span><span class="p">;</span>
+<span class="p">};</span>
+
+<span class="k">struct</span> <span class="n">LinkedList</span> <span class="o">*</span> <span class="n">_Nullable</span> <span class="nf">getNext</span><span class="p">(</span><span class="k">struct</span> <span class="n">LinkedList</span> <span class="o">*</span><span class="n">l</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">updateNextData</span><span class="p">(</span><span class="k">struct</span> <span class="n">LinkedList</span> <span class="o">*</span><span class="n">list</span><span class="p">,</span> <span class="kt">int</span> <span class="n">newData</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">LinkedList</span> <span class="o">*</span><span class="n">next</span> <span class="o">=</span> <span class="n">getNext</span><span class="p">(</span><span class="n">list</span><span class="p">);</span>
+ <span class="c1">// Warning: Nullable pointer is dereferenced</span>
+ <span class="n">next</span><span class="o">-></span><span class="n">data</span> <span class="o">=</span> <span class="mi">7</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="nullability-nullablepassedtononnull-objc">
+<span id="nullability-nullablepassedtononnull"></span><h4><a class="toc-backref" href="#id52">1.1.4.4. nullability.NullablePassedToNonnull (ObjC)</a><a class="headerlink" href="#nullability-nullablepassedtononnull-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns when a nullable pointer is passed to a pointer which has a _Nonnull type.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">typedef</span> <span class="k">struct</span> <span class="n">Dummy</span> <span class="p">{</span> <span class="kt">int</span> <span class="n">val</span><span class="p">;</span> <span class="p">}</span> <span class="n">Dummy</span><span class="p">;</span>
+<span class="n">Dummy</span> <span class="o">*</span><span class="n">_Nullable</span> <span class="nf">returnsNullable</span><span class="p">();</span>
+<span class="kt">void</span> <span class="nf">takesNonnull</span><span class="p">(</span><span class="n">Dummy</span> <span class="o">*</span><span class="n">_Nonnull</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">Dummy</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">returnsNullable</span><span class="p">();</span>
+ <span class="n">takesNonnull</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="nullability-nullablereturnedfromnonnull-objc">
+<span id="nullability-nullablereturnedfromnonnull"></span><h4><a class="toc-backref" href="#id53">1.1.4.5. nullability.NullableReturnedFromNonnull (ObjC)</a><a class="headerlink" href="#nullability-nullablereturnedfromnonnull-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns when a nullable pointer is returned from a function that has _Nonnull return type.</p>
+</div>
+</div>
+<div class="section" id="optin">
+<span id="optin-checkers"></span><h3><a class="toc-backref" href="#id54">1.1.5. optin</a><a class="headerlink" href="#optin" title="Permalink to this headline">¶</a></h3>
+<p>Checkers for portability, performance or coding style specific rules.</p>
+<div class="section" id="optin-cplusplus-uninitializedobject-c">
+<span id="optin-cplusplus-uninitializedobject"></span><h4><a class="toc-backref" href="#id55">1.1.5.1. optin.cplusplus.UninitializedObject (C++)</a><a class="headerlink" href="#optin-cplusplus-uninitializedobject-c" title="Permalink to this headline">¶</a></h4>
+<p>This checker reports uninitialized fields in objects created after a constructor
+call. It doesnât only find direct uninitialized fields, but rather makes a deep
+inspection of the object, analyzing all of itâs fields subfields.
+The checker regards inherited fields as direct fields, so one will recieve
+warnings for uninitialized inherited data members as well.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="c1">// With Pedantic and CheckPointeeInitialization set to true</span>
+
+<span class="k">struct</span> <span class="n">A</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">B</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// note: uninitialized field 'this->b.x'</span>
+ <span class="c1">// note: uninitialized field 'this->bptr->x'</span>
+ <span class="kt">int</span> <span class="n">y</span><span class="p">;</span> <span class="c1">// note: uninitialized field 'this->b.y'</span>
+ <span class="c1">// note: uninitialized field 'this->bptr->y'</span>
+ <span class="p">};</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">iptr</span><span class="p">;</span> <span class="c1">// note: uninitialized pointer 'this->iptr'</span>
+ <span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">;</span> <span class="c1">// note: uninitialized pointee 'this->cptr'</span>
+
+ <span class="n">A</span> <span class="p">(</span><span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">)</span> <span class="o">:</span> <span class="n">bptr</span><span class="p">(</span><span class="n">bptr</span><span class="p">),</span> <span class="n">cptr</span><span class="p">(</span><span class="n">cptr</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">f</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">A</span><span class="o">::</span><span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="n">c</span><span class="p">;</span>
+ <span class="n">A</span> <span class="n">a</span><span class="p">(</span><span class="o">&</span><span class="n">b</span><span class="p">,</span> <span class="o">&</span><span class="n">c</span><span class="p">);</span> <span class="c1">// warning: 6 uninitialized fields</span>
+ <span class="c1">// after the constructor call</span>
+<span class="p">}</span>
+
+<span class="c1">// With Pedantic set to false and</span>
+<span class="c1">// CheckPointeeInitialization set to true</span>
+<span class="c1">// (every field is uninitialized)</span>
+
+<span class="k">struct</span> <span class="n">A</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">B</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">y</span><span class="p">;</span>
+ <span class="p">};</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">iptr</span><span class="p">;</span>
+ <span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">;</span>
+
+ <span class="n">A</span> <span class="p">(</span><span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">)</span> <span class="o">:</span> <span class="n">bptr</span><span class="p">(</span><span class="n">bptr</span><span class="p">),</span> <span class="n">cptr</span><span class="p">(</span><span class="n">cptr</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">f</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">A</span><span class="o">::</span><span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="n">c</span><span class="p">;</span>
+ <span class="n">A</span> <span class="n">a</span><span class="p">(</span><span class="o">&</span><span class="n">b</span><span class="p">,</span> <span class="o">&</span><span class="n">c</span><span class="p">);</span> <span class="c1">// no warning</span>
+<span class="p">}</span>
+
+<span class="c1">// With Pedantic set to true and</span>
+<span class="c1">// CheckPointeeInitialization set to false</span>
+<span class="c1">// (pointees are regarded as initialized)</span>
+
+<span class="k">struct</span> <span class="n">A</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">B</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// note: uninitialized field 'this->b.x'</span>
+ <span class="kt">int</span> <span class="n">y</span><span class="p">;</span> <span class="c1">// note: uninitialized field 'this->b.y'</span>
+ <span class="p">};</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">iptr</span><span class="p">;</span> <span class="c1">// note: uninitialized pointer 'this->iptr'</span>
+ <span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">;</span>
+
+ <span class="n">A</span> <span class="p">(</span><span class="n">B</span> <span class="o">*</span><span class="n">bptr</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">cptr</span><span class="p">)</span> <span class="o">:</span> <span class="n">bptr</span><span class="p">(</span><span class="n">bptr</span><span class="p">),</span> <span class="n">cptr</span><span class="p">(</span><span class="n">cptr</span><span class="p">)</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">f</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">A</span><span class="o">::</span><span class="n">B</span> <span class="n">b</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="n">c</span><span class="p">;</span>
+ <span class="n">A</span> <span class="n">a</span><span class="p">(</span><span class="o">&</span><span class="n">b</span><span class="p">,</span> <span class="o">&</span><span class="n">c</span><span class="p">);</span> <span class="c1">// warning: 3 uninitialized fields</span>
+ <span class="c1">// after the constructor call</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p><strong>Options</strong></p>
+<p>This checker has several options which can be set from command line (e.g.
+<code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">optin.cplusplus.UninitializedObject:Pedantic=true</span></code>):</p>
+<ul class="simple">
+<li><code class="docutils literal notranslate"><span class="pre">Pedantic</span></code> (boolean). If to false, the checker wonât emit warnings for
+objects that donât have at least one initialized field. Defaults to false.</li>
+<li><code class="docutils literal notranslate"><span class="pre">NotesAsWarnings</span></code> (boolean). If set to true, the checker will emit a
+warning for each uninitalized field, as opposed to emitting one warning per
+constructor call, and listing the uninitialized fields that belongs to it in
+notes. <em>Defaults to false</em>.</li>
+<li><code class="docutils literal notranslate"><span class="pre">CheckPointeeInitialization</span></code> (boolean). If set to false, the checker will
+not analyze the pointee of pointer/reference fields, and will only check
+whether the object itself is initialized. <em>Defaults to false</em>.</li>
+<li><code class="docutils literal notranslate"><span class="pre">IgnoreRecordsWithField</span></code> (string). If supplied, the checker will not analyze
+structures that have a field with a name or type name that matches the given
+pattern. <em>Defaults to ââ</em>.</li>
+</ul>
+</div>
+<div class="section" id="optin-cplusplus-virtualcall-c">
+<span id="optin-cplusplus-virtualcall"></span><h4><a class="toc-backref" href="#id56">1.1.5.2. optin.cplusplus.VirtualCall (C++)</a><a class="headerlink" href="#optin-cplusplus-virtualcall-c" title="Permalink to this headline">¶</a></h4>
+<p>Check virtual function calls during construction or destruction.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">A</span> <span class="p">{</span>
+<span class="k">public</span><span class="o">:</span>
+ <span class="n">A</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">f</span><span class="p">();</span> <span class="c1">// warn</span>
+ <span class="p">}</span>
+ <span class="k">virtual</span> <span class="kt">void</span> <span class="n">f</span><span class="p">();</span>
+<span class="p">};</span>
+
+<span class="k">class</span> <span class="nc">A</span> <span class="p">{</span>
+<span class="k">public</span><span class="o">:</span>
+ <span class="o">~</span><span class="n">A</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">this</span><span class="o">-></span><span class="n">f</span><span class="p">();</span> <span class="c1">// warn</span>
+ <span class="p">}</span>
+ <span class="k">virtual</span> <span class="kt">void</span> <span class="n">f</span><span class="p">();</span>
+<span class="p">};</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="optin-mpi-mpi-checker-c">
+<span id="optin-mpi-mpi-checker"></span><h4><a class="toc-backref" href="#id57">1.1.5.3. optin.mpi.MPI-Checker (C)</a><a class="headerlink" href="#optin-mpi-mpi-checker-c" title="Permalink to this headline">¶</a></h4>
+<p>Checks MPI code.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">buf</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">MPI_Request</span> <span class="n">sendReq1</span><span class="p">;</span>
+ <span class="n">MPI_Ireduce</span><span class="p">(</span><span class="n">MPI_IN_PLACE</span><span class="p">,</span> <span class="o">&</span><span class="n">buf</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">MPI_DOUBLE</span><span class="p">,</span> <span class="n">MPI_SUM</span><span class="p">,</span>
+ <span class="mi">0</span><span class="p">,</span> <span class="n">MPI_COMM_WORLD</span><span class="p">,</span> <span class="o">&</span><span class="n">sendReq1</span><span class="p">);</span>
+<span class="p">}</span> <span class="c1">// warn: request 'sendReq1' has no matching wait.</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">double</span> <span class="n">buf</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">MPI_Request</span> <span class="n">sendReq</span><span class="p">;</span>
+ <span class="n">MPI_Isend</span><span class="p">(</span><span class="o">&</span><span class="n">buf</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">MPI_DOUBLE</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">MPI_COMM_WORLD</span><span class="p">,</span> <span class="o">&</span><span class="n">sendReq</span><span class="p">);</span>
+ <span class="n">MPI_Irecv</span><span class="p">(</span><span class="o">&</span><span class="n">buf</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">MPI_DOUBLE</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">MPI_COMM_WORLD</span><span class="p">,</span> <span class="o">&</span><span class="n">sendReq</span><span class="p">);</span> <span class="c1">// warn</span>
+ <span class="n">MPI_Isend</span><span class="p">(</span><span class="o">&</span><span class="n">buf</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">MPI_DOUBLE</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">MPI_COMM_WORLD</span><span class="p">,</span> <span class="o">&</span><span class="n">sendReq</span><span class="p">);</span> <span class="c1">// warn</span>
+ <span class="n">MPI_Wait</span><span class="p">(</span><span class="o">&</span><span class="n">sendReq</span><span class="p">,</span> <span class="n">MPI_STATUS_IGNORE</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">missingNonBlocking</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">rank</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">MPI_Comm_rank</span><span class="p">(</span><span class="n">MPI_COMM_WORLD</span><span class="p">,</span> <span class="o">&</span><span class="n">rank</span><span class="p">);</span>
+ <span class="n">MPI_Request</span> <span class="n">sendReq1</span><span class="p">[</span><span class="mi">10</span><span class="p">][</span><span class="mi">10</span><span class="p">][</span><span class="mi">10</span><span class="p">];</span>
+ <span class="n">MPI_Wait</span><span class="p">(</span><span class="o">&</span><span class="n">sendReq1</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="mi">7</span><span class="p">][</span><span class="mi">9</span><span class="p">],</span> <span class="n">MPI_STATUS_IGNORE</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="optin-osx-cocoa-localizability-emptylocalizationcontextchecker-objc">
+<span id="optin-osx-cocoa-localizability-emptylocalizationcontextchecker"></span><h4><a class="toc-backref" href="#id58">1.1.5.4. optin.osx.cocoa.localizability.EmptyLocalizationContextChecker (ObjC)</a><a class="headerlink" href="#optin-osx-cocoa-localizability-emptylocalizationcontextchecker-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check that NSLocalizedString macros include a comment for context.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">test</span> <span class="p">{</span>
+ <span class="bp">NSString</span> <span class="o">*</span><span class="n">string</span> <span class="o">=</span> <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"LocalizedString"</span><span class="p">,</span> <span class="nb">nil</span><span class="p">);</span> <span class="c1">// warn</span>
+ <span class="bp">NSString</span> <span class="o">*</span><span class="n">string2</span> <span class="o">=</span> <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"LocalizedString"</span><span class="p">,</span> <span class="s">@" "</span><span class="p">);</span> <span class="c1">// warn</span>
+ <span class="bp">NSString</span> <span class="o">*</span><span class="n">string3</span> <span class="o">=</span> <span class="n">NSLocalizedStringWithDefaultValue</span><span class="p">(</span>
+ <span class="s">@"LocalizedString"</span><span class="p">,</span> <span class="nb">nil</span><span class="p">,</span> <span class="p">[[</span><span class="bp">NSBundle</span> <span class="n">alloc</span><span class="p">]</span> <span class="n">init</span><span class="p">],</span> <span class="nb">nil</span><span class="p">,</span><span class="s">@""</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="optin-osx-cocoa-localizability-nonlocalizedstringchecker-objc">
+<span id="optin-osx-cocoa-localizability-nonlocalizedstringchecker"></span><h4><a class="toc-backref" href="#id59">1.1.5.5. optin.osx.cocoa.localizability.NonLocalizedStringChecker (ObjC)</a><a class="headerlink" href="#optin-osx-cocoa-localizability-nonlocalizedstringchecker-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns about uses of non-localized NSStrings passed to UI methods expecting localized NSStrings.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="bp">NSString</span> <span class="o">*</span><span class="n">alarmText</span> <span class="o">=</span>
+ <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"Enabled"</span><span class="p">,</span> <span class="s">@"Indicates alarm is turned on"</span><span class="p">);</span>
+<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">isEnabled</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">alarmText</span> <span class="o">=</span> <span class="s">@"Disabled"</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="bp">UILabel</span> <span class="o">*</span><span class="n">alarmStateLabel</span> <span class="o">=</span> <span class="p">[[</span><span class="bp">UILabel</span> <span class="n">alloc</span><span class="p">]</span> <span class="n">init</span><span class="p">];</span>
+
+<span class="c1">// Warning: User-facing text should use localized string macro</span>
+<span class="p">[</span><span class="n">alarmStateLabel</span> <span class="nl">setText</span><span class="p">:</span><span class="n">alarmText</span><span class="p">];</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="optin-performance-gcdantipattern">
+<span id="id3"></span><h4><a class="toc-backref" href="#id60">1.1.5.6. optin.performance.GCDAntipattern</a><a class="headerlink" href="#optin-performance-gcdantipattern" title="Permalink to this headline">¶</a></h4>
+<p>Check for performance anti-patterns when using Grand Central Dispatch.</p>
+</div>
+<div class="section" id="optin-performance-padding">
+<span id="id4"></span><h4><a class="toc-backref" href="#id61">1.1.5.7. optin.performance.Padding</a><a class="headerlink" href="#optin-performance-padding" title="Permalink to this headline">¶</a></h4>
+<p>Check for excessively padded structs.</p>
+</div>
+<div class="section" id="optin-portability-unixapi">
+<span id="id5"></span><h4><a class="toc-backref" href="#id62">1.1.5.8. optin.portability.UnixAPI</a><a class="headerlink" href="#optin-portability-unixapi" title="Permalink to this headline">¶</a></h4>
+<p>Finds implementation-defined behavior in UNIX/Posix functions.</p>
+</div>
+</div>
+<div class="section" id="security">
+<span id="security-checkers"></span><h3><a class="toc-backref" href="#id63">1.1.6. security</a><a class="headerlink" href="#security" title="Permalink to this headline">¶</a></h3>
+<p>Security related checkers.</p>
+<div class="section" id="security-floatloopcounter-c">
+<span id="security-floatloopcounter"></span><h4><a class="toc-backref" href="#id64">1.1.6.1. security.FloatLoopCounter (C)</a><a class="headerlink" href="#security-floatloopcounter-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on using a floating point value as a loop counter (CERT: FLP30-C, FLP30-CPP).</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">for</span> <span class="p">(</span><span class="kt">float</span> <span class="n">x</span> <span class="o">=</span> <span class="mf">0.1f</span><span class="p">;</span> <span class="n">x</span> <span class="o"><=</span> <span class="mf">1.0f</span><span class="p">;</span> <span class="n">x</span> <span class="o">+=</span> <span class="mf">0.1f</span><span class="p">)</span> <span class="p">{}</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-uncheckedreturn-c">
+<span id="security-insecureapi-uncheckedreturn"></span><h4><a class="toc-backref" href="#id65">1.1.6.2. security.insecureAPI.UncheckedReturn (C)</a><a class="headerlink" href="#security-insecureapi-uncheckedreturn-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of functions whose return values must be always checked.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">setuid</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-bcmp-c">
+<span id="security-insecureapi-bcmp"></span><h4><a class="toc-backref" href="#id66">1.1.6.3. security.insecureAPI.bcmp (C)</a><a class="headerlink" href="#security-insecureapi-bcmp-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the âbcmpâ function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">bcmp</span><span class="p">(</span><span class="n">ptr0</span><span class="p">,</span> <span class="n">ptr1</span><span class="p">,</span> <span class="n">n</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-bcopy-c">
+<span id="security-insecureapi-bcopy"></span><h4><a class="toc-backref" href="#id67">1.1.6.4. security.insecureAPI.bcopy (C)</a><a class="headerlink" href="#security-insecureapi-bcopy-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the âbcopyâ function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">bcopy</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">dst</span><span class="p">,</span> <span class="n">n</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-bzero-c">
+<span id="security-insecureapi-bzero"></span><h4><a class="toc-backref" href="#id68">1.1.6.5. security.insecureAPI.bzero (C)</a><a class="headerlink" href="#security-insecureapi-bzero-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the âbzeroâ function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">bzero</span><span class="p">(</span><span class="n">ptr</span><span class="p">,</span> <span class="n">n</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-getpw-c">
+<span id="security-insecureapi-getpw"></span><h4><a class="toc-backref" href="#id69">1.1.6.6. security.insecureAPI.getpw (C)</a><a class="headerlink" href="#security-insecureapi-getpw-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the âgetpwâ function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">buff</span><span class="p">[</span><span class="mi">1024</span><span class="p">];</span>
+ <span class="n">getpw</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">buff</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-gets-c">
+<span id="security-insecureapi-gets"></span><h4><a class="toc-backref" href="#id70">1.1.6.7. security.insecureAPI.gets (C)</a><a class="headerlink" href="#security-insecureapi-gets-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the âgetsâ function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">buff</span><span class="p">[</span><span class="mi">1024</span><span class="p">];</span>
+ <span class="n">gets</span><span class="p">(</span><span class="n">buff</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-mkstemp-c">
+<span id="security-insecureapi-mkstemp"></span><h4><a class="toc-backref" href="#id71">1.1.6.8. security.insecureAPI.mkstemp (C)</a><a class="headerlink" href="#security-insecureapi-mkstemp-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn when âmkstempâ is passed fewer than 6 Xâs in the format string.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">mkstemp</span><span class="p">(</span><span class="s">"XX"</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-mktemp-c">
+<span id="security-insecureapi-mktemp"></span><h4><a class="toc-backref" href="#id72">1.1.6.9. security.insecureAPI.mktemp (C)</a><a class="headerlink" href="#security-insecureapi-mktemp-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the <code class="docutils literal notranslate"><span class="pre">mktemp</span></code> function.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">x</span> <span class="o">=</span> <span class="n">mktemp</span><span class="p">(</span><span class="s">"/tmp/zxcv"</span><span class="p">);</span> <span class="c1">// warn: insecure, use mkstemp</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-rand-c">
+<span id="security-insecureapi-rand"></span><h4><a class="toc-backref" href="#id73">1.1.6.10. security.insecureAPI.rand (C)</a><a class="headerlink" href="#security-insecureapi-rand-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of inferior random number generating functions (only if arc4random function is available):
+<code class="docutils literal notranslate"><span class="pre">drand48,</span> <span class="pre">erand48,</span> <span class="pre">jrand48,</span> <span class="pre">lcong48,</span> <span class="pre">lrand48,</span> <span class="pre">mrand48,</span> <span class="pre">nrand48,</span> <span class="pre">random,</span> <span class="pre">rand_r</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">random</span><span class="p">();</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-strcpy-c">
+<span id="security-insecureapi-strcpy"></span><h4><a class="toc-backref" href="#id74">1.1.6.11. security.insecureAPI.strcpy (C)</a><a class="headerlink" href="#security-insecureapi-strcpy-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on uses of the <code class="docutils literal notranslate"><span class="pre">strcpy</span></code> and <code class="docutils literal notranslate"><span class="pre">strcat</span></code> functions.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">x</span><span class="p">[</span><span class="mi">4</span><span class="p">];</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">y</span> <span class="o">=</span> <span class="s">"abcd"</span><span class="p">;</span>
+
+ <span class="n">strcpy</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-vfork-c">
+<span id="security-insecureapi-vfork"></span><h4><a class="toc-backref" href="#id75">1.1.6.12. security.insecureAPI.vfork (C)</a><a class="headerlink" href="#security-insecureapi-vfork-c" title="Permalink to this headline">¶</a></h4>
+<blockquote>
+<div>Warn on uses of the âvforkâ function.</div></blockquote>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">vfork</span><span class="p">();</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="security-insecureapi-deprecatedorunsafebufferhandling-c">
+<span id="security-insecureapi-deprecatedorunsafebufferhandling"></span><h4><a class="toc-backref" href="#id76">1.1.6.13. security.insecureAPI.DeprecatedOrUnsafeBufferHandling (C)</a><a class="headerlink" href="#security-insecureapi-deprecatedorunsafebufferhandling-c" title="Permalink to this headline">¶</a></h4>
+<blockquote>
+<div>Warn on occurrences of unsafe or deprecated buffer handling functions, which now have a secure variant: <code class="docutils literal notranslate"><span class="pre">sprintf,</span> <span class="pre">vsprintf,</span> <span class="pre">scanf,</span> <span class="pre">wscanf,</span> <span class="pre">fscanf,</span> <span class="pre">fwscanf,</span> <span class="pre">vscanf,</span> <span class="pre">vwscanf,</span> <span class="pre">vfscanf,</span> <span class="pre">vfwscanf,</span> <span class="pre">sscanf,</span> <span class="pre">swscanf,</span> <span class="pre">vsscanf,</span> <span class="pre">vswscanf,</span> <span class="pre">swprintf,</span> <span class="pre">snprintf,</span> <span class="pre">vswprintf,</span> <span class="pre">vsnprintf,</span> <span class="pre">memcpy,</span> <span class="pre">memmove,</span> <span class="pre">strncpy,</span> <span class="pre">strncat,</span> <span class="pre">memset</span></code></div></blockquote>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">buf</span> <span class="p">[</span><span class="mi">5</span><span class="p">];</span>
+ <span class="n">strncpy</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="s">"a"</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="unix">
+<span id="unix-checkers"></span><h3><a class="toc-backref" href="#id77">1.1.7. unix</a><a class="headerlink" href="#unix" title="Permalink to this headline">¶</a></h3>
+<p>POSIX/Unix checkers.</p>
+<div class="section" id="unix-api-c">
+<span id="unix-api"></span><h4><a class="toc-backref" href="#id78">1.1.7.1. unix.API (C)</a><a class="headerlink" href="#unix-api-c" title="Permalink to this headline">¶</a></h4>
+<p>Check calls to various UNIX/Posix functions: <code class="docutils literal notranslate"><span class="pre">open,</span> <span class="pre">pthread_once,</span> <span class="pre">calloc,</span> <span class="pre">malloc,</span> <span class="pre">realloc,</span> <span class="pre">alloca</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span>
+<span class="c1">// Currently the check is performed for apple targets only.</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">path</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">fd</span> <span class="o">=</span> <span class="n">open</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">O_CREAT</span><span class="p">);</span>
+ <span class="c1">// warn: call to 'open' requires a third argument when the</span>
+ <span class="c1">// 'O_CREAT' flag is set</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">f</span><span class="p">();</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">pthread_once_t</span> <span class="n">pred</span> <span class="o">=</span> <span class="p">{</span><span class="mh">0x30B1BCBA</span><span class="p">,</span> <span class="p">{</span><span class="mi">0</span><span class="p">}};</span>
+ <span class="n">pthread_once</span><span class="p">(</span><span class="o">&</span><span class="n">pred</span><span class="p">,</span> <span class="n">f</span><span class="p">);</span>
+ <span class="c1">// warn: call to 'pthread_once' uses the local variable</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="c1">// warn: allocation size of 0 bytes</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">calloc</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">42</span><span class="p">);</span> <span class="c1">// warn: allocation size of 0 bytes</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="n">realloc</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span> <span class="c1">// warn: allocation size of 0 bytes</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">alloca</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="c1">// warn: allocation size of 0 bytes</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">valloc</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="c1">// warn: allocation size of 0 bytes</span>
+<span class="p">}</span>
+
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-malloc-c">
+<span id="unix-malloc"></span><h4><a class="toc-backref" href="#id79">1.1.7.2. unix.Malloc (C)</a><a class="headerlink" href="#unix-malloc-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for memory leaks, double free, and use-after-free problems. Traces memory managed by malloc()/free().</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn: attempt to free released memory</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+ <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn: use after free</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">p</span><span class="p">)</span>
+ <span class="k">return</span><span class="p">;</span> <span class="c1">// warn: memory is never released</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span><span class="p">[]</span> <span class="o">=</span> <span class="p">{</span> <span class="mi">1</span> <span class="p">};</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">a</span><span class="p">);</span> <span class="c1">// warn: argument is not allocated by malloc</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">char</span><span class="p">));</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="n">p</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn: argument to free() is offset by -4 bytes</span>
+<span class="p">}</span>
+
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-mallocsizeof-c">
+<span id="unix-mallocsizeof"></span><h4><a class="toc-backref" href="#id80">1.1.7.3. unix.MallocSizeof (C)</a><a class="headerlink" href="#unix-mallocsizeof-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for dubious <code class="docutils literal notranslate"><span class="pre">malloc</span></code> arguments involving <code class="docutils literal notranslate"><span class="pre">sizeof</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">long</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">short</span><span class="p">));</span>
+ <span class="c1">// warn: result is converted to 'long *', which is</span>
+ <span class="c1">// incompatible with operand type 'short'</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-mismatcheddeallocator-c-c">
+<span id="unix-mismatcheddeallocator"></span><h4><a class="toc-backref" href="#id81">1.1.7.4. unix.MismatchedDeallocator (C, C++)</a><a class="headerlink" href="#unix-mismatcheddeallocator-c-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for mismatched deallocators.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="c1">// C, C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span>
+ <span class="n">delete</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C, C++</span>
+<span class="kt">void</span> <span class="nf">__attribute</span><span class="p">((</span><span class="n">ownership_returns</span><span class="p">(</span><span class="n">malloc</span><span class="p">)))</span> <span class="o">*</span><span class="n">user_malloc</span><span class="p">(</span><span class="kt">size_t</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">user_malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span>
+ <span class="n">delete</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C, C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">new</span> <span class="kt">int</span><span class="p">;</span>
+ <span class="n">free</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C, C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">new</span> <span class="kt">int</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span>
+ <span class="n">realloc</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">long</span><span class="p">));</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C, C++</span>
+<span class="n">template</span> <span class="o"><</span><span class="kr">typename</span> <span class="n">T</span><span class="o">></span>
+<span class="k">struct</span> <span class="n">SimpleSmartPointer</span> <span class="p">{</span>
+ <span class="n">T</span> <span class="o">*</span><span class="n">ptr</span><span class="p">;</span>
+
+ <span class="n">explicit</span> <span class="nf">SimpleSmartPointer</span><span class="p">(</span><span class="n">T</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="mi">0</span><span class="p">)</span> <span class="o">:</span> <span class="n">ptr</span><span class="p">(</span><span class="n">p</span><span class="p">)</span> <span class="p">{}</span>
+ <span class="o">~</span><span class="n">SimpleSmartPointer</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">delete</span> <span class="n">ptr</span><span class="p">;</span> <span class="c1">// warn</span>
+ <span class="p">}</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">SimpleSmartPointer</span><span class="o"><</span><span class="kt">int</span><span class="o">></span> <span class="n">a</span><span class="p">((</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="mi">4</span><span class="p">));</span>
+<span class="p">}</span>
+
+<span class="c1">// C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">operator</span> <span class="n">new</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span>
+ <span class="n">delete</span><span class="p">[]</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// Objective-C, C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="n">NSUInteger</span> <span class="n">dataLength</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">new</span> <span class="kt">int</span><span class="p">;</span>
+ <span class="n">NSData</span> <span class="o">*</span><span class="n">d</span> <span class="o">=</span> <span class="p">[</span><span class="n">NSData</span> <span class="nl">dataWithBytesNoCopy</span><span class="p">:</span><span class="n">p</span>
+ <span class="nl">length</span><span class="p">:</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span> <span class="nl">freeWhenDone</span><span class="p">:</span><span class="mi">1</span><span class="p">];</span>
+ <span class="c1">// warn +dataWithBytesNoCopy:length:freeWhenDone: cannot take</span>
+ <span class="c1">// ownership of memory allocated by 'new'</span>
+<span class="p">}</span>
+
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-vfork-c">
+<span id="unix-vfork"></span><h4><a class="toc-backref" href="#id82">1.1.7.5. unix.Vfork (C)</a><a class="headerlink" href="#unix-vfork-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for proper usage of <code class="docutils literal notranslate"><span class="pre">vfork</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">pid_t</span> <span class="n">pid</span> <span class="o">=</span> <span class="n">vfork</span><span class="p">();</span> <span class="c1">// warn</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">pid</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+
+ <span class="k">switch</span> <span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="mi">0</span><span class="o">:</span>
+ <span class="n">pid</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="n">execl</span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="s">""</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
+ <span class="n">_exit</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="mi">1</span><span class="o">:</span>
+ <span class="n">x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn: this assignment is prohibited</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">case</span> <span class="mi">2</span><span class="o">:</span>
+ <span class="n">foo</span><span class="p">();</span> <span class="c1">// warn: this function call is prohibited</span>
+ <span class="k">break</span><span class="p">;</span>
+ <span class="k">default</span><span class="o">:</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn: return is prohibited</span>
+ <span class="p">}</span>
+
+ <span class="k">while</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-cstring-badsizearg-c">
+<span id="unix-cstring-badsizearg"></span><h4><a class="toc-backref" href="#id83">1.1.7.6. unix.cstring.BadSizeArg (C)</a><a class="headerlink" href="#unix-cstring-badsizearg-c" title="Permalink to this headline">¶</a></h4>
+<p>Check the size argument passed into C string functions for common erroneous patterns. Use <code class="docutils literal notranslate"><span class="pre">-Wno-strncat-size</span></code> compiler option to mute other <code class="docutils literal notranslate"><span class="pre">strncat</span></code>-related compiler warnings.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">dest</span><span class="p">[</span><span class="mi">3</span><span class="p">];</span>
+ <span class="n">strncat</span><span class="p">(</span><span class="n">dest</span><span class="p">,</span> <span class="s">"""""""""""""""""""""""""*"</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">dest</span><span class="p">));</span>
+ <span class="c1">// warn: potential buffer overflow</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="unix-cstrisng-nullarg-c">
+<span id="unix-cstrisng-nullarg"></span><h4><a class="toc-backref" href="#id84">1.1.7.7. unix.cstrisng.NullArg (C)</a><a class="headerlink" href="#unix-cstrisng-nullarg-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for null pointers being passed as arguments to C string functions:
+<code class="docutils literal notranslate"><span class="pre">strlen,</span> <span class="pre">strnlen,</span> <span class="pre">strcpy,</span> <span class="pre">strncpy,</span> <span class="pre">strcat,</span> <span class="pre">strncat,</span> <span class="pre">strcmp,</span> <span class="pre">strncmp,</span> <span class="pre">strcasecmp,</span> <span class="pre">strncasecmp</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">strlen</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="osx">
+<span id="osx-checkers"></span><h3><a class="toc-backref" href="#id85">1.1.8. osx</a><a class="headerlink" href="#osx" title="Permalink to this headline">¶</a></h3>
+<p>macOS checkers.</p>
+<div class="section" id="osx-api-c">
+<span id="osx-api"></span><h4><a class="toc-backref" href="#id86">1.1.8.1. osx.API (C)</a><a class="headerlink" href="#osx-api-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for proper uses of various Apple APIs.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">dispatch_once_t</span> <span class="n">pred</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">dispatch_once</span><span class="p">(</span><span class="o">&</span><span class="n">pred</span><span class="p">,</span> <span class="o">^</span><span class="p">(){});</span> <span class="c1">// warn: dispatch_once uses local</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-numberobjectconversion-c-c-objc">
+<span id="osx-numberobjectconversion"></span><h4><a class="toc-backref" href="#id87">1.1.8.2. osx.NumberObjectConversion (C, C++, ObjC)</a><a class="headerlink" href="#osx-numberobjectconversion-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for erroneous conversions of objects representing numbers into numbers.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="bp">NSNumber</span> <span class="o">*</span><span class="n">photoCount</span> <span class="o">=</span> <span class="p">[</span><span class="n">albumDescriptor</span> <span class="nl">objectForKey</span><span class="p">:</span><span class="s">@"PhotoCount"</span><span class="p">];</span>
+<span class="c1">// Warning: Comparing a pointer value of type 'NSNumber *'</span>
+<span class="c1">// to a scalar integer value</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">photoCount</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">self</span> <span class="n">displayPhotos</span><span class="p">];</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-objcproperty-objc">
+<span id="osx-objcproperty"></span><h4><a class="toc-backref" href="#id88">1.1.8.3. osx.ObjCProperty (ObjC)</a><a class="headerlink" href="#osx-objcproperty-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for proper uses of Objective-C properties.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="bp">NSNumber</span> <span class="o">*</span><span class="n">photoCount</span> <span class="o">=</span> <span class="p">[</span><span class="n">albumDescriptor</span> <span class="nl">objectForKey</span><span class="p">:</span><span class="s">@"PhotoCount"</span><span class="p">];</span>
+<span class="c1">// Warning: Comparing a pointer value of type 'NSNumber *'</span>
+<span class="c1">// to a scalar integer value</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">photoCount</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">self</span> <span class="n">displayPhotos</span><span class="p">];</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-seckeychainapi-c">
+<span id="osx-seckeychainapi"></span><h4><a class="toc-backref" href="#id89">1.1.8.4. osx.SecKeychainAPI (C)</a><a class="headerlink" href="#osx-seckeychainapi-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for proper uses of Secure Keychain APIs.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">unsigned</span> <span class="kt">int</span> <span class="o">*</span><span class="n">ptr</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">UInt32</span> <span class="n">length</span><span class="p">;</span>
+
+ <span class="n">SecKeychainItemFreeContent</span><span class="p">(</span><span class="n">ptr</span><span class="p">,</span> <span class="o">&</span><span class="n">length</span><span class="p">);</span>
+ <span class="c1">// warn: trying to free data which has not been allocated</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">unsigned</span> <span class="kt">int</span> <span class="o">*</span><span class="n">ptr</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">UInt32</span> <span class="o">*</span><span class="n">length</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">outData</span><span class="p">;</span>
+
+ <span class="n">OSStatus</span> <span class="n">st</span> <span class="o">=</span>
+ <span class="n">SecKeychainItemCopyContent</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">length</span><span class="p">,</span> <span class="n">outData</span><span class="p">);</span>
+ <span class="c1">// warn: data is not released</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">unsigned</span> <span class="kt">int</span> <span class="o">*</span><span class="n">ptr</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">UInt32</span> <span class="o">*</span><span class="n">length</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">outData</span><span class="p">;</span>
+
+ <span class="n">OSStatus</span> <span class="n">st</span> <span class="o">=</span>
+ <span class="n">SecKeychainItemCopyContent</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">length</span><span class="p">,</span> <span class="o">&</span><span class="n">outData</span><span class="p">);</span>
+
+ <span class="n">SecKeychainItemFreeContent</span><span class="p">(</span><span class="n">ptr</span><span class="p">,</span> <span class="n">outData</span><span class="p">);</span>
+ <span class="c1">// warn: only call free if a non-NULL buffer was returned</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">unsigned</span> <span class="kt">int</span> <span class="o">*</span><span class="n">ptr</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">UInt32</span> <span class="o">*</span><span class="n">length</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">outData</span><span class="p">;</span>
+
+ <span class="n">OSStatus</span> <span class="n">st</span> <span class="o">=</span>
+ <span class="n">SecKeychainItemCopyContent</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">length</span><span class="p">,</span> <span class="o">&</span><span class="n">outData</span><span class="p">);</span>
+
+ <span class="n">st</span> <span class="o">=</span> <span class="n">SecKeychainItemCopyContent</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">ptr</span><span class="p">,</span> <span class="n">length</span><span class="p">,</span> <span class="o">&</span><span class="n">outData</span><span class="p">);</span>
+ <span class="c1">// warn: release data before another call to the allocator</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">st</span> <span class="o">==</span> <span class="n">noErr</span><span class="p">)</span>
+ <span class="n">SecKeychainItemFreeContent</span><span class="p">(</span><span class="n">ptr</span><span class="p">,</span> <span class="n">outData</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">SecKeychainItemRef</span> <span class="n">itemRef</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">SecKeychainAttributeInfo</span> <span class="o">*</span><span class="n">info</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">SecItemClass</span> <span class="o">*</span><span class="n">itemClass</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="n">SecKeychainAttributeList</span> <span class="o">*</span><span class="n">attrList</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">UInt32</span> <span class="o">*</span><span class="n">length</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">outData</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+
+ <span class="n">OSStatus</span> <span class="n">st</span> <span class="o">=</span>
+ <span class="n">SecKeychainItemCopyAttributesAndData</span><span class="p">(</span><span class="n">itemRef</span><span class="p">,</span> <span class="n">info</span><span class="p">,</span>
+ <span class="n">itemClass</span><span class="p">,</span> <span class="o">&</span><span class="n">attrList</span><span class="p">,</span>
+ <span class="n">length</span><span class="p">,</span> <span class="o">&</span><span class="n">outData</span><span class="p">);</span>
+
+ <span class="n">SecKeychainItemFreeContent</span><span class="p">(</span><span class="n">attrList</span><span class="p">,</span> <span class="n">outData</span><span class="p">);</span>
+ <span class="c1">// warn: deallocator doesn't match the allocator</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-atsync-objc">
+<span id="osx-cocoa-atsync"></span><h4><a class="toc-backref" href="#id90">1.1.8.5. osx.cocoa.AtSync (ObjC)</a><a class="headerlink" href="#osx-cocoa-atsync-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for nil pointers used as mutexes for @synchronized.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">id</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">x</span><span class="p">)</span>
+ <span class="k">@synchronized</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="p">{}</span> <span class="c1">// warn: nil value used as mutex</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">y</span><span class="p">;</span>
+ <span class="k">@synchronized</span><span class="p">(</span><span class="n">y</span><span class="p">)</span> <span class="p">{}</span> <span class="c1">// warn: uninitialized value used as mutex</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-autoreleasewrite">
+<span id="id6"></span><h4><a class="toc-backref" href="#id91">1.1.8.6. osx.cocoa.AutoreleaseWrite</a><a class="headerlink" href="#osx-cocoa-autoreleasewrite" title="Permalink to this headline">¶</a></h4>
+<p>Warn about potentially crashing writes to autoreleasing objects from different autoreleasing pools in Objective-C.</p>
+</div>
+<div class="section" id="osx-cocoa-classrelease-objc">
+<span id="osx-cocoa-classrelease"></span><h4><a class="toc-backref" href="#id92">1.1.8.7. osx.cocoa.ClassRelease (ObjC)</a><a class="headerlink" href="#osx-cocoa-classrelease-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for sending âretainâ, âreleaseâ, or âautoreleaseâ directly to a Class.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="bp">NSObject</span>
+<span class="k">@end</span>
+
+<span class="kt">void</span> <span class="n">test</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">[</span><span class="bp">MyClass</span> <span class="k">release</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-dealloc-objc">
+<span id="osx-cocoa-dealloc"></span><h4><a class="toc-backref" href="#id93">1.1.8.8. osx.cocoa.Dealloc (ObjC)</a><a class="headerlink" href="#osx-cocoa-dealloc-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about Objective-C classes that lack a correct implementation of -dealloc</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">MyObject</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">_myproperty</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObject</span> <span class="c1">// warn: lacks 'dealloc'</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MyObject</span> : <span class="bp">NSObject</span> <span class="p">{}</span>
+<span class="k">@property</span><span class="p">(</span><span class="k">assign</span><span class="p">)</span> <span class="kt">id</span> <span class="n">myproperty</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObject</span> <span class="c1">// warn: does not send 'dealloc' to super</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">dealloc</span> <span class="p">{</span>
+ <span class="nb">self</span><span class="p">.</span><span class="n">myproperty</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MyObject</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">_myproperty</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@property</span><span class="p">(</span><span class="k">retain</span><span class="p">)</span> <span class="kt">id</span> <span class="n">myproperty</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObject</span>
+<span class="k">@synthesize</span> <span class="n">myproperty</span> <span class="o">=</span> <span class="n">_myproperty</span><span class="p">;</span>
+ <span class="c1">// warn: var was retained but wasn't released</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">dealloc</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">super</span> <span class="n">dealloc</span><span class="p">];</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MyObject</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">_myproperty</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@property</span><span class="p">(</span><span class="k">assign</span><span class="p">)</span> <span class="kt">id</span> <span class="n">myproperty</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObject</span>
+<span class="k">@synthesize</span> <span class="n">myproperty</span> <span class="o">=</span> <span class="n">_myproperty</span><span class="p">;</span>
+ <span class="c1">// warn: var wasn't retained but was released</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">dealloc</span> <span class="p">{</span>
+ <span class="p">[</span><span class="n">_myproperty</span> <span class="k">release</span><span class="p">];</span>
+ <span class="p">[</span><span class="nb">super</span> <span class="n">dealloc</span><span class="p">];</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-incompatiblemethodtypes-objc">
+<span id="osx-cocoa-incompatiblemethodtypes"></span><h4><a class="toc-backref" href="#id94">1.1.8.9. osx.cocoa.IncompatibleMethodTypes (ObjC)</a><a class="headerlink" href="#osx-cocoa-incompatiblemethodtypes-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about Objective-C method signatures with type incompatibilities.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">MyClass1</span> : <span class="bp">NSObject</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="nf">foo</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyClass1</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="nf">foo</span> <span class="p">{</span> <span class="k">return</span> <span class="mi">1</span><span class="p">;</span> <span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MyClass2</span> : <span class="nc">MyClass1</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="nf">foo</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyClass2</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="nf">foo</span> <span class="p">{</span> <span class="k">return</span> <span class="mf">1.0</span><span class="p">;</span> <span class="p">}</span> <span class="c1">// warn</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-loops">
+<span id="id7"></span><h4><a class="toc-backref" href="#id95">1.1.8.10. osx.cocoa.Loops</a><a class="headerlink" href="#osx-cocoa-loops" title="Permalink to this headline">¶</a></h4>
+<p>Improved modeling of loops using Cocoa collection types.</p>
+</div>
+<div class="section" id="osx-cocoa-missingsupercall-objc">
+<span id="osx-cocoa-missingsupercall"></span><h4><a class="toc-backref" href="#id96">1.1.8.11. osx.cocoa.MissingSuperCall (ObjC)</a><a class="headerlink" href="#osx-cocoa-missingsupercall-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about Objective-C methods that lack a necessary call to super.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">Test</span> : <span class="bp">UIViewController</span>
+<span class="k">@end</span>
+<span class="k">@implementation</span> <span class="nc">test</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">viewDidLoad</span> <span class="p">{}</span> <span class="c1">// warn</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-nsautoreleasepool-objc">
+<span id="osx-cocoa-nsautoreleasepool"></span><h4><a class="toc-backref" href="#id97">1.1.8.12. osx.cocoa.NSAutoreleasePool (ObjC)</a><a class="headerlink" href="#osx-cocoa-nsautoreleasepool-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn for suboptimal uses of NSAutoreleasePool in Objective-C GC mode.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">NSAutoreleasePool</span> <span class="o">*</span><span class="n">pool</span> <span class="o">=</span> <span class="p">[[</span><span class="bp">NSAutoreleasePool</span> <span class="n">alloc</span><span class="p">]</span> <span class="n">init</span><span class="p">];</span>
+ <span class="p">[</span><span class="n">pool</span> <span class="k">release</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-nserror-objc">
+<span id="osx-cocoa-nserror"></span><h4><a class="toc-backref" href="#id98">1.1.8.13. osx.cocoa.NSError (ObjC)</a><a class="headerlink" href="#osx-cocoa-nserror-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check usage of NSError parameters.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">A</span> : <span class="bp">NSObject</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">foo:</span><span class="p">(</span><span class="bp">NSError</span> <span class="s">""""""""""""""""""""""""</span><span class="p">)</span><span class="nv">error</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">A</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">foo:</span><span class="p">(</span><span class="bp">NSError</span> <span class="s">""""""""""""""""""""""""</span><span class="p">)</span><span class="nv">error</span> <span class="p">{</span>
+ <span class="c1">// warn: method accepting NSError"""""""""""""""""""""""" should have a non-void</span>
+ <span class="c1">// return value</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">A</span> : <span class="bp">NSObject</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">BOOL</span><span class="p">)</span><span class="nf">foo:</span><span class="p">(</span><span class="bp">NSError</span> <span class="s">""""""""""""""""""""""""</span><span class="p">)</span><span class="nv">error</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">A</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">BOOL</span><span class="p">)</span><span class="nf">foo:</span><span class="p">(</span><span class="bp">NSError</span> <span class="s">""""""""""""""""""""""""</span><span class="p">)</span><span class="nv">error</span> <span class="p">{</span>
+ <span class="o">*</span><span class="n">error</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn: potential null dereference</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-nilarg-objc">
+<span id="osx-cocoa-nilarg"></span><h4><a class="toc-backref" href="#id99">1.1.8.14. osx.cocoa.NilArg (ObjC)</a><a class="headerlink" href="#osx-cocoa-nilarg-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for prohibited nil arguments to ObjC method calls.</p>
+<blockquote>
+<div><ul class="simple">
+<li>caseInsensitiveCompare:</li>
+<li>compare:</li>
+<li>compare:options:</li>
+<li>compare:options:range:</li>
+<li>compare:options:range:locale:</li>
+<li>componentsSeparatedByCharactersInSet:</li>
+<li>initWithFormat:</li>
+</ul>
+</div></blockquote>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="n">NSComparisonResult</span> <span class="nf">test</span><span class="p">(</span><span class="bp">NSString</span> <span class="o">*</span><span class="n">s</span><span class="p">)</span> <span class="p">{</span>
+ <span class="bp">NSString</span> <span class="o">*</span><span class="n">aString</span> <span class="o">=</span> <span class="nb">nil</span><span class="p">;</span>
+ <span class="k">return</span> <span class="p">[</span><span class="n">s</span> <span class="nl">caseInsensitiveCompare</span><span class="p">:</span><span class="n">aString</span><span class="p">];</span>
+ <span class="c1">// warn: argument to 'NSString' method</span>
+ <span class="c1">// 'caseInsensitiveCompare:' cannot be nil</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-nonnilreturnvalue">
+<span id="id8"></span><h4><a class="toc-backref" href="#id100">1.1.8.15. osx.cocoa.NonNilReturnValue</a><a class="headerlink" href="#osx-cocoa-nonnilreturnvalue" title="Permalink to this headline">¶</a></h4>
+<p>Models the APIs that are guaranteed to return a non-nil value.</p>
+</div>
+<div class="section" id="osx-cocoa-objcgenerics-objc">
+<span id="osx-cocoa-objcgenerics"></span><h4><a class="toc-backref" href="#id101">1.1.8.16. osx.cocoa.ObjCGenerics (ObjC)</a><a class="headerlink" href="#osx-cocoa-objcgenerics-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for type errors when using Objective-C generics.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="bp">NSMutableArray</span> <span class="o">*</span><span class="n">names</span> <span class="o">=</span> <span class="p">[</span><span class="bp">NSMutableArray</span> <span class="n">array</span><span class="p">];</span>
+<span class="bp">NSMutableArray</span> <span class="o">*</span><span class="n">birthDates</span> <span class="o">=</span> <span class="n">names</span><span class="p">;</span>
+
+<span class="c1">// Warning: Conversion from value of type 'NSDate *'</span>
+<span class="c1">// to incompatible type 'NSString *'</span>
+<span class="p">[</span><span class="n">birthDates</span> <span class="nl">addObject</span><span class="p">:</span> <span class="p">[</span><span class="bp">NSDate</span> <span class="n">date</span><span class="p">]];</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-retaincount-objc">
+<span id="osx-cocoa-retaincount"></span><h4><a class="toc-backref" href="#id102">1.1.8.17. osx.cocoa.RetainCount (ObjC)</a><a class="headerlink" href="#osx-cocoa-retaincount-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for leaks and improper reference count management</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="bp">NSString</span> <span class="o">*</span><span class="n">s</span> <span class="o">=</span> <span class="p">[[</span><span class="bp">NSString</span> <span class="n">alloc</span><span class="p">]</span> <span class="n">init</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="n">CFStringRef</span> <span class="nf">test</span><span class="p">(</span><span class="kt">char</span> <span class="o">*</span><span class="n">bytes</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">CFStringCreateWithCStringNoCopy</span><span class="p">(</span>
+ <span class="mi">0</span><span class="p">,</span> <span class="n">bytes</span><span class="p">,</span> <span class="n">NSNEXTSTEPStringEncoding</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-runloopautoreleaseleak">
+<span id="id9"></span><h4><a class="toc-backref" href="#id103">1.1.8.18. osx.cocoa.RunLoopAutoreleaseLeak</a><a class="headerlink" href="#osx-cocoa-runloopautoreleaseleak" title="Permalink to this headline">¶</a></h4>
+<p>Check for leaked memory in autorelease pools that will never be drained.</p>
+</div>
+<div class="section" id="osx-cocoa-selfinit-objc">
+<span id="osx-cocoa-selfinit"></span><h4><a class="toc-backref" href="#id104">1.1.8.19. osx.cocoa.SelfInit (ObjC)</a><a class="headerlink" href="#osx-cocoa-selfinit-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check that âselfâ is properly initialized inside an initializer method.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">MyObj</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="kt">id</span> <span class="n">x</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">id</span><span class="p">)</span><span class="nf">init</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObj</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">id</span><span class="p">)</span><span class="nf">init</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">super</span> <span class="n">init</span><span class="p">];</span>
+ <span class="n">x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn: instance variable used while 'self' is not</span>
+ <span class="c1">// initialized</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MyObj</span> : <span class="bp">NSObject</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">id</span><span class="p">)</span><span class="nf">init</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObj</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">id</span><span class="p">)</span><span class="nf">init</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">super</span> <span class="n">init</span><span class="p">];</span>
+ <span class="k">return</span> <span class="nb">self</span><span class="p">;</span> <span class="c1">// warn: returning uninitialized 'self'</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-superdealloc-objc">
+<span id="osx-cocoa-superdealloc"></span><h4><a class="toc-backref" href="#id105">1.1.8.20. osx.cocoa.SuperDealloc (ObjC)</a><a class="headerlink" href="#osx-cocoa-superdealloc-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about improper use of â[super dealloc]â in Objective-C.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">SuperDeallocThenReleaseIvarClass</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="bp">NSObject</span> <span class="o">*</span><span class="n">_ivar</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">SuperDeallocThenReleaseIvarClass</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">dealloc</span> <span class="p">{</span>
+ <span class="p">[</span><span class="nb">super</span> <span class="n">dealloc</span><span class="p">];</span>
+ <span class="p">[</span><span class="n">_ivar</span> <span class="k">release</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-unusedivars-objc">
+<span id="osx-cocoa-unusedivars"></span><h4><a class="toc-backref" href="#id106">1.1.8.21. osx.cocoa.UnusedIvars (ObjC)</a><a class="headerlink" href="#osx-cocoa-unusedivars-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about private ivars that are never used.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="nc">MyObj</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+<span class="k">@private</span>
+ <span class="kt">id</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MyObj</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-cocoa-variadicmethodtypes-objc">
+<span id="osx-cocoa-variadicmethodtypes"></span><h4><a class="toc-backref" href="#id107">1.1.8.22. osx.cocoa.VariadicMethodTypes (ObjC)</a><a class="headerlink" href="#osx-cocoa-variadicmethodtypes-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for passing non-Objective-C types to variadic collection
+initialization methods that expect only Objective-C types.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="p">[</span><span class="bp">NSSet</span> <span class="nl">setWithObjects</span><span class="p">:</span><span class="s">@"Foo"</span><span class="p">,</span> <span class="s">"Bar"</span><span class="p">,</span> <span class="nb">nil</span><span class="p">];</span>
+ <span class="c1">// warn: argument should be an ObjC pointer type, not 'char *'</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-corefoundation-cferror-c">
+<span id="osx-corefoundation-cferror"></span><h4><a class="toc-backref" href="#id108">1.1.8.23. osx.coreFoundation.CFError (C)</a><a class="headerlink" href="#osx-corefoundation-cferror-c" title="Permalink to this headline">¶</a></h4>
+<p>Check usage of CFErrorRef* parameters</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="n">CFErrorRef</span> <span class="o">*</span><span class="n">error</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// warn: function accepting CFErrorRef* should have a</span>
+ <span class="c1">// non-void return</span>
+<span class="p">}</span>
+
+<span class="kt">int</span> <span class="nf">foo</span><span class="p">(</span><span class="n">CFErrorRef</span> <span class="o">*</span><span class="n">error</span><span class="p">)</span> <span class="p">{</span>
+ <span class="o">*</span><span class="n">error</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn: potential null dereference</span>
+ <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-corefoundation-cfnumber-c">
+<span id="osx-corefoundation-cfnumber"></span><h4><a class="toc-backref" href="#id109">1.1.8.24. osx.coreFoundation.CFNumber (C)</a><a class="headerlink" href="#osx-corefoundation-cfnumber-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for proper uses of CFNumber APIs.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="n">CFNumberRef</span> <span class="nf">test</span><span class="p">(</span><span class="kt">unsigned</span> <span class="kt">char</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="n">CFNumberCreate</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">kCFNumberSInt16Type</span><span class="p">,</span> <span class="o">&</span><span class="n">x</span><span class="p">);</span>
+ <span class="c1">// warn: 8 bit integer is used to initialize a 16 bit integer</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-corefoundation-cfretainrelease-c">
+<span id="osx-corefoundation-cfretainrelease"></span><h4><a class="toc-backref" href="#id110">1.1.8.25. osx.coreFoundation.CFRetainRelease (C)</a><a class="headerlink" href="#osx-corefoundation-cfretainrelease-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for null arguments to CFRetain/CFRelease/CFMakeCollectable.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="n">CFTypeRef</span> <span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">p</span><span class="p">)</span>
+ <span class="n">CFRetain</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">x</span><span class="p">,</span> <span class="n">CFTypeRef</span> <span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">p</span><span class="p">)</span>
+ <span class="k">return</span><span class="p">;</span>
+
+ <span class="n">CFRelease</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-corefoundation-containers-outofbounds-c">
+<span id="osx-corefoundation-containers-outofbounds"></span><h4><a class="toc-backref" href="#id111">1.1.8.26. osx.coreFoundation.containers.OutOfBounds (C)</a><a class="headerlink" href="#osx-corefoundation-containers-outofbounds-c" title="Permalink to this headline">¶</a></h4>
+<p>Checks for index out-of-bounds when using âCFArrayâ API.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">CFArrayRef</span> <span class="n">A</span> <span class="o">=</span> <span class="n">CFArrayCreate</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="o">&</span><span class="n">kCFTypeArrayCallBacks</span><span class="p">);</span>
+ <span class="n">CFArrayGetValueAtIndex</span><span class="p">(</span><span class="n">A</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="osx-corefoundation-containers-pointersizedvalues-c">
+<span id="osx-corefoundation-containers-pointersizedvalues"></span><h4><a class="toc-backref" href="#id112">1.1.8.27. osx.coreFoundation.containers.PointerSizedValues (C)</a><a class="headerlink" href="#osx-corefoundation-containers-pointersizedvalues-c" title="Permalink to this headline">¶</a></h4>
+<p>Warns if âCFArrayâ, âCFDictionaryâ, âCFSetâ are created with non-pointer-size values.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">[]</span> <span class="o">=</span> <span class="p">{</span> <span class="mi">1</span> <span class="p">};</span>
+ <span class="n">CFArrayRef</span> <span class="n">A</span> <span class="o">=</span> <span class="n">CFArrayCreate</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="p">(</span><span class="k">const</span> <span class="kt">void</span> <span class="s">""""""""""""""""""""""""</span><span class="p">)</span><span class="n">x</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span>
+ <span class="o">&</span><span class="n">kCFTypeArrayCallBacks</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+</div>
+<div class="section" id="experimental-checkers">
+<span id="alpha-checkers"></span><h2><a class="toc-backref" href="#id113">1.2. Experimental Checkers</a><a class="headerlink" href="#experimental-checkers" title="Permalink to this headline">¶</a></h2>
+<p><em>These are checkers with known issues or limitations that keep them from being on by default. They are likely to have false positives. Bug reports and especially patches are welcome.</em></p>
+<div class="section" id="alpha-clone">
+<h3><a class="toc-backref" href="#id114">1.2.1. alpha.clone</a><a class="headerlink" href="#alpha-clone" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-clone-clonechecker-c-c-objc">
+<span id="alpha-clone-clonechecker"></span><h4><a class="toc-backref" href="#id115">1.2.1.1. alpha.clone.CloneChecker (C, C++, ObjC)</a><a class="headerlink" href="#alpha-clone-clonechecker-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Reports similar pieces of code.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">log</span><span class="p">();</span>
+
+<span class="kt">int</span> <span class="nf">max</span><span class="p">(</span><span class="kt">int</span> <span class="n">a</span><span class="p">,</span> <span class="kt">int</span> <span class="n">b</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// warn</span>
+ <span class="n">log</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">a</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">b</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="kt">int</span> <span class="nf">maxClone</span><span class="p">(</span><span class="kt">int</span> <span class="n">x</span><span class="p">,</span> <span class="kt">int</span> <span class="n">y</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// similar code here</span>
+ <span class="n">log</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">x</span> <span class="o">></span> <span class="n">y</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">x</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">y</span><span class="p">;</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-boolassignment-objc">
+<span id="alpha-core-boolassignment"></span><h4><a class="toc-backref" href="#id116">1.2.1.2. alpha.core.BoolAssignment (ObjC)</a><a class="headerlink" href="#alpha-core-boolassignment-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warn about assigning non-{0,1} values to boolean variables.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">BOOL</span> <span class="n">b</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-core">
+<h3><a class="toc-backref" href="#id117">1.2.2. alpha.core</a><a class="headerlink" href="#alpha-core" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-core-callandmessageuninitrefarg-c-c-objc">
+<span id="alpha-core-callandmessageuninitrefarg"></span><h4><a class="toc-backref" href="#id118">1.2.2.1. alpha.core.CallAndMessageUnInitRefArg (C,C++, ObjC)</a><a class="headerlink" href="#alpha-core-callandmessageuninitrefarg-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for logical errors for function calls and Objective-C
+message expressions (e.g., uninitialized arguments, null function pointers, and pointer to undefined variables).</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">t</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="o">&</span><span class="n">p</span> <span class="o">=</span> <span class="n">t</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="o">&</span><span class="n">s</span> <span class="o">=</span> <span class="n">p</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="o">&</span><span class="n">q</span> <span class="o">=</span> <span class="n">s</span><span class="p">;</span>
+ <span class="n">foo</span><span class="p">(</span><span class="n">q</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="n">foo</span><span class="p">(</span><span class="o">&</span><span class="n">x</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-castsize-c">
+<span id="alpha-core-castsize"></span><h4><a class="toc-backref" href="#id119">1.2.2.2. alpha.core.CastSize (C)</a><a class="headerlink" href="#alpha-core-castsize-c" title="Permalink to this headline">¶</a></h4>
+<p>Check when casting a mallocâed type <code class="docutils literal notranslate"><span class="pre">T</span></code>, whether the size is a multiple of the size of <code class="docutils literal notranslate"><span class="pre">T</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">x</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">11</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-casttostruct-c-c">
+<span id="alpha-core-casttostruct"></span><h4><a class="toc-backref" href="#id120">1.2.2.3. alpha.core.CastToStruct (C, C++)</a><a class="headerlink" href="#alpha-core-casttostruct-c-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for cast from non-struct pointer to struct pointer.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="c1">// C</span>
+<span class="k">struct</span> <span class="n">s</span> <span class="p">{};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">s</span> <span class="o">*</span><span class="n">ps</span> <span class="o">=</span> <span class="p">(</span><span class="k">struct</span> <span class="n">s</span> <span class="o">*</span><span class="p">)</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C++</span>
+<span class="k">class</span> <span class="nc">c</span> <span class="p">{};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">c</span> <span class="o">*</span><span class="n">pc</span> <span class="o">=</span> <span class="p">(</span><span class="n">c</span> <span class="o">*</span><span class="p">)</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-conversion-c-c-objc">
+<span id="alpha-core-conversion"></span><h4><a class="toc-backref" href="#id121">1.2.2.4. alpha.core.Conversion (C, C++, ObjC)</a><a class="headerlink" href="#alpha-core-conversion-c-c-objc" title="Permalink to this headline">¶</a></h4>
+<p>Loss of sign/precision in implicit conversions.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">unsigned</span> <span class="n">U</span><span class="p">,</span> <span class="kt">signed</span> <span class="n">S</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">S</span> <span class="o">></span> <span class="mi">10</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">U</span> <span class="o"><</span> <span class="n">S</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">S</span> <span class="o"><</span> <span class="o">-</span><span class="mi">10</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">U</span> <span class="o"><</span> <span class="n">S</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// warn (loss of sign)</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">long</span> <span class="kt">long</span> <span class="n">A</span> <span class="o">=</span> <span class="mi">1LL</span> <span class="o"><<</span> <span class="mi">60</span><span class="p">;</span>
+ <span class="kt">short</span> <span class="n">X</span> <span class="o">=</span> <span class="n">A</span><span class="p">;</span> <span class="c1">// warn (loss of precision)</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-dynamictypechecker-objc">
+<span id="alpha-core-dynamictypechecker"></span><h4><a class="toc-backref" href="#id122">1.2.2.5. alpha.core.DynamicTypeChecker (ObjC)</a><a class="headerlink" href="#alpha-core-dynamictypechecker-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for cases where the dynamic and the static type of an object are unrelated.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="kt">id</span> <span class="n">date</span> <span class="o">=</span> <span class="p">[</span><span class="bp">NSDate</span> <span class="n">date</span><span class="p">];</span>
+
+<span class="c1">// Warning: Object has a dynamic type 'NSDate *' which is</span>
+<span class="c1">// incompatible with static type 'NSNumber *'"</span>
+<span class="bp">NSNumber</span> <span class="o">*</span><span class="n">number</span> <span class="o">=</span> <span class="n">date</span><span class="p">;</span>
+<span class="p">[</span><span class="n">number</span> <span class="n">doubleValue</span><span class="p">];</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-fixedaddr-c">
+<span id="alpha-core-fixedaddr"></span><h4><a class="toc-backref" href="#id123">1.2.2.6. alpha.core.FixedAddr (C)</a><a class="headerlink" href="#alpha-core-fixedaddr-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for assignment of a fixed address to a pointer.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">;</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span> <span class="mh">0x10000</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-identicalexpr-c-c">
+<span id="alpha-core-identicalexpr"></span><h4><a class="toc-backref" href="#id124">1.2.2.7. alpha.core.IdenticalExpr (C, C++)</a><a class="headerlink" href="#alpha-core-identicalexpr-c-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn about unintended use of identical expressions in operators.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="c1">// C</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span> <span class="o">=</span> <span class="mi">5</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">b</span> <span class="o">=</span> <span class="n">a</span> <span class="o">|</span> <span class="mi">4</span> <span class="o">|</span> <span class="n">a</span><span class="p">;</span> <span class="c1">// warn: identical expr on both sides</span>
+<span class="p">}</span>
+
+<span class="c1">// C++</span>
+<span class="kt">bool</span> <span class="nf">f</span><span class="p">(</span><span class="kt">void</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">bool</span> <span class="n">b</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">f</span><span class="p">())</span> <span class="p">{</span> <span class="c1">// warn: true and false branches are identical</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">i</span><span class="o">--</span><span class="p">;</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">f</span><span class="p">());</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="k">do</span> <span class="p">{</span>
+ <span class="n">i</span><span class="o">--</span><span class="p">;</span>
+ <span class="p">}</span> <span class="k">while</span> <span class="p">(</span><span class="n">f</span><span class="p">());</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-pointerarithm-c">
+<span id="alpha-core-pointerarithm"></span><h4><a class="toc-backref" href="#id125">1.2.2.8. alpha.core.PointerArithm (C)</a><a class="headerlink" href="#alpha-core-pointerarithm-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for pointer arithmetic on locations other than array elements.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span><span class="p">;</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="o">&</span><span class="n">x</span> <span class="o">+</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-pointersub-c">
+<span id="alpha-core-pointersub"></span><h4><a class="toc-backref" href="#id126">1.2.2.9. alpha.core.PointerSub (C)</a><a class="headerlink" href="#alpha-core-pointersub-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for pointer subtractions on two pointers pointing to different memory chunks.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">d</span> <span class="o">=</span> <span class="o">&</span><span class="n">y</span> <span class="o">-</span> <span class="o">&</span><span class="n">x</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-sizeofptr-c">
+<span id="alpha-core-sizeofptr"></span><h4><a class="toc-backref" href="#id127">1.2.2.10. alpha.core.SizeofPtr (C)</a><a class="headerlink" href="#alpha-core-sizeofptr-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn about unintended use of <code class="docutils literal notranslate"><span class="pre">sizeof()</span></code> on pointer expressions.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="k">struct</span> <span class="n">s</span> <span class="p">{};</span>
+
+<span class="kt">int</span> <span class="nf">test</span><span class="p">(</span><span class="k">struct</span> <span class="n">s</span> <span class="o">*</span><span class="n">p</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+ <span class="c1">// warn: sizeof(ptr) can produce an unexpected result</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-stackaddressasyncescape-c">
+<span id="alpha-core-stackaddressasyncescape"></span><h4><a class="toc-backref" href="#id128">1.2.2.11. alpha.core.StackAddressAsyncEscape (C)</a><a class="headerlink" href="#alpha-core-stackaddressasyncescape-c" title="Permalink to this headline">¶</a></h4>
+<p>Check that addresses to stack memory do not escape the function that involves dispatch_after or dispatch_async.
+This checker is a part of <code class="docutils literal notranslate"><span class="pre">core.StackAddressEscape</span></code>, but is temporarily disabled until some false positives are fixed.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="n">dispatch_block_t</span> <span class="nf">test_block_inside_block_async_leak</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">123</span><span class="p">;</span>
+ <span class="kt">void</span> <span class="p">(</span><span class="o">^</span><span class="n">inner</span><span class="p">)(</span><span class="kt">void</span><span class="p">)</span> <span class="o">=</span> <span class="o">^</span><span class="kt">void</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">++</span><span class="n">y</span><span class="p">;</span>
+ <span class="p">};</span>
+ <span class="kt">void</span> <span class="p">(</span><span class="o">^</span><span class="n">outer</span><span class="p">)(</span><span class="kt">void</span><span class="p">)</span> <span class="o">=</span> <span class="o">^</span><span class="kt">void</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">z</span> <span class="o">=</span> <span class="n">x</span><span class="p">;</span>
+ <span class="o">++</span><span class="n">z</span><span class="p">;</span>
+ <span class="n">inner</span><span class="p">();</span>
+ <span class="p">};</span>
+ <span class="k">return</span> <span class="n">outer</span><span class="p">;</span> <span class="c1">// warn: address of stack-allocated block is captured by a</span>
+ <span class="c1">// returned block</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-core-testafterdivzero-c">
+<span id="alpha-core-testafterdivzero"></span><h4><a class="toc-backref" href="#id129">1.2.2.12. alpha.core.TestAfterDivZero (C)</a><a class="headerlink" href="#alpha-core-testafterdivzero-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for division by variable that is later compared against 0.
+Either the comparison is useless or there is division by zero.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">var</span> <span class="o">=</span> <span class="mi">77</span> <span class="o">/</span> <span class="n">x</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">x</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> <span class="p">}</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus">
+<h3><a class="toc-backref" href="#id130">1.2.3. alpha.cplusplus</a><a class="headerlink" href="#alpha-cplusplus" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-cplusplus-deletewithnonvirtualdtor-c">
+<span id="alpha-cplusplus-deletewithnonvirtualdtor"></span><h4><a class="toc-backref" href="#id131">1.2.3.1. alpha.cplusplus.DeleteWithNonVirtualDtor (C++)</a><a class="headerlink" href="#alpha-cplusplus-deletewithnonvirtualdtor-c" title="Permalink to this headline">¶</a></h4>
+<p>Reports destructions of polymorphic objects with a non-virtual destructor in their base class.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">NonVirtual</span> <span class="o">*</span><span class="nf">create</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">NonVirtual</span> <span class="o">*</span><span class="n">x</span> <span class="o">=</span> <span class="k">new</span> <span class="n">NVDerived</span><span class="p">();</span> <span class="c1">// note: conversion from derived to base</span>
+ <span class="c1">// happened here</span>
+ <span class="k">return</span> <span class="n">x</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">sink</span><span class="p">(</span><span class="n">NonVirtual</span> <span class="o">*</span><span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">delete</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// warn: destruction of a polymorphic object with no virtual</span>
+ <span class="c1">// destructor</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus-enumcastoutofrange-c">
+<span id="alpha-cplusplus-enumcastoutofrange"></span><h4><a class="toc-backref" href="#id132">1.2.3.2. alpha.cplusplus.EnumCastOutOfRange (C++)</a><a class="headerlink" href="#alpha-cplusplus-enumcastoutofrange-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for integer to enumeration casts that could result in undefined values.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="k">enum</span> <span class="n">TestEnum</span> <span class="p">{</span>
+ <span class="n">A</span> <span class="o">=</span> <span class="mi">0</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">foo</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">TestEnum</span> <span class="n">t</span> <span class="o">=</span> <span class="k">static_cast</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">);</span>
+ <span class="c1">// warn: the value provided to the cast expression is not in</span>
+ <span class="n">the</span> <span class="n">valid</span> <span class="n">range</span> <span class="n">of</span> <span class="n">values</span> <span class="k">for</span> <span class="n">the</span> <span class="k">enum</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus-invalidatediterator-c">
+<span id="alpha-cplusplus-invalidatediterator"></span><h4><a class="toc-backref" href="#id133">1.2.3.3. alpha.cplusplus.InvalidatedIterator (C++)</a><a class="headerlink" href="#alpha-cplusplus-invalidatediterator-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for use of invalidated iterators.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">bad_copy_assign_operator_list1</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">list</span> <span class="o">&</span><span class="n">L1</span><span class="p">,</span>
+ <span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">list</span> <span class="o">&</span><span class="n">L2</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">i0</span> <span class="o">=</span> <span class="n">L1</span><span class="p">.</span><span class="n">cbegin</span><span class="p">();</span>
+ <span class="n">L1</span> <span class="o">=</span> <span class="n">L2</span><span class="p">;</span>
+ <span class="o">*</span><span class="n">i0</span><span class="p">;</span> <span class="c1">// warn: invalidated iterator accessed</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus-iteratorrange-c">
+<span id="alpha-cplusplus-iteratorrange"></span><h4><a class="toc-backref" href="#id134">1.2.3.4. alpha.cplusplus.IteratorRange (C++)</a><a class="headerlink" href="#alpha-cplusplus-iteratorrange-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for iterators used outside their valid ranges.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">simple_bad_end</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span> <span class="o">&</span><span class="n">v</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">auto</span> <span class="n">i</span> <span class="o">=</span> <span class="n">v</span><span class="p">.</span><span class="n">end</span><span class="p">();</span>
+ <span class="o">*</span><span class="n">i</span><span class="p">;</span> <span class="c1">// warn: iterator accessed outside of its range</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus-mismatchediterator-c">
+<span id="alpha-cplusplus-mismatchediterator"></span><h4><a class="toc-backref" href="#id135">1.2.3.5. alpha.cplusplus.MismatchedIterator (C++)</a><a class="headerlink" href="#alpha-cplusplus-mismatchediterator-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for use of iterators of different containers where iterators of the same container are expected.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">bad_insert3</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">vector</span> <span class="o">&</span><span class="n">v1</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">vector</span> <span class="o">&</span><span class="n">v2</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">v2</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">v1</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v2</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v2</span><span class="p">.</span><span class="n">cend</span><span class="p">());</span> <span class="c1">// warn: container accessed</span>
+ <span class="c1">// using foreign</span>
+ <span class="c1">// iterator argument</span>
+ <span class="n">v1</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">v1</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v1</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v2</span><span class="p">.</span><span class="n">cend</span><span class="p">());</span> <span class="c1">// warn: iterators of</span>
+ <span class="c1">// different containers</span>
+ <span class="c1">// used where the same</span>
+ <span class="c1">// container is</span>
+ <span class="c1">// expected</span>
+ <span class="n">v1</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">v1</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v2</span><span class="p">.</span><span class="n">cbegin</span><span class="p">(),</span> <span class="n">v1</span><span class="p">.</span><span class="n">cend</span><span class="p">());</span> <span class="c1">// warn: iterators of</span>
+ <span class="c1">// different containers</span>
+ <span class="c1">// used where the same</span>
+ <span class="c1">// container is</span>
+ <span class="c1">// expected</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-cplusplus-misusedmovedobject-c">
+<span id="alpha-cplusplus-misusedmovedobject"></span><h4><a class="toc-backref" href="#id136">1.2.3.6. alpha.cplusplus.MisusedMovedObject (C++)</a><a class="headerlink" href="#alpha-cplusplus-misusedmovedobject-c" title="Permalink to this headline">¶</a></h4>
+<p>Method calls on a moved-from object and copying a moved-from object will be reported.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span> <span class="k">struct</span> <span class="n">A</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="n">foo</span><span class="p">()</span> <span class="p">{}</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">f</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">A</span> <span class="n">a</span><span class="p">;</span>
+ <span class="n">A</span> <span class="n">b</span> <span class="o">=</span> <span class="n">std</span><span class="o">::</span><span class="n">move</span><span class="p">(</span><span class="n">a</span><span class="p">);</span> <span class="c1">// note: 'a' became 'moved-from' here</span>
+ <span class="n">a</span><span class="p">.</span><span class="n">foo</span><span class="p">();</span> <span class="c1">// warn: method call on a 'moved-from' object 'a'</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-deadcode">
+<h3><a class="toc-backref" href="#id137">1.2.4. alpha.deadcode</a><a class="headerlink" href="#alpha-deadcode" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-deadcode-unreachablecode-c-c">
+<span id="alpha-deadcode-unreachablecode"></span><h4><a class="toc-backref" href="#id138">1.2.4.1. alpha.deadcode.UnreachableCode (C, C++)</a><a class="headerlink" href="#alpha-deadcode-unreachablecode-c-c" title="Permalink to this headline">¶</a></h4>
+<p>Check unreachable code.</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="c1">// C</span>
+<span class="kt">int</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="k">while</span><span class="p">(</span><span class="n">x</span><span class="p">);</span>
+ <span class="k">return</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// C++</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span> <span class="o">=</span> <span class="mi">2</span><span class="p">;</span>
+
+ <span class="k">while</span> <span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span>
+ <span class="n">a</span><span class="o">--</span><span class="p">;</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span>
+ <span class="n">a</span><span class="o">++</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// Objective-C</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="n">id</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span><span class="p">;</span>
+ <span class="p">[</span><span class="n">x</span> <span class="n">retain</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-llvm">
+<h3><a class="toc-backref" href="#id139">1.2.5. alpha.llvm</a><a class="headerlink" href="#alpha-llvm" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-llvm-conventions">
+<span id="id10"></span><h4><a class="toc-backref" href="#id140">1.2.5.1. alpha.llvm.Conventions</a><a class="headerlink" href="#alpha-llvm-conventions" title="Permalink to this headline">¶</a></h4>
+<p>Check code for LLVM codebase conventions:</p>
+<ul class="simple">
+<li>A StringRef should not be bound to a temporary std::string whose lifetime is shorter than the StringRefâs.</li>
+<li>Clang AST nodes should not have fields that can allocate memory.</li>
+</ul>
+</div>
+</div>
+<div class="section" id="alpha-osx">
+<h3><a class="toc-backref" href="#id141">1.2.6. alpha.osx</a><a class="headerlink" href="#alpha-osx" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-osx-cocoa-directivarassignment-objc">
+<span id="alpha-osx-cocoa-directivarassignment"></span><h4><a class="toc-backref" href="#id142">1.2.6.1. alpha.osx.cocoa.DirectIvarAssignment (ObjC)</a><a class="headerlink" href="#alpha-osx-cocoa-directivarassignment-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for direct assignments to instance variables.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="bp">NSObject</span> <span class="p">{}</span>
+<span class="k">@property</span> <span class="p">(</span><span class="k">readonly</span><span class="p">)</span> <span class="kt">id</span> <span class="n">A</span><span class="p">;</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">foo</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="bp">MyClass</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">foo</span> <span class="p">{</span>
+ <span class="n">_A</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-osx-cocoa-directivarassignmentforannotatedfunctions-objc">
+<span id="alpha-osx-cocoa-directivarassignmentforannotatedfunctions"></span><h4><a class="toc-backref" href="#id143">1.2.6.2. alpha.osx.cocoa.DirectIvarAssignmentForAnnotatedFunctions (ObjC)</a><a class="headerlink" href="#alpha-osx-cocoa-directivarassignmentforannotatedfunctions-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check for direct assignments to instance variables in
+the methods annotated with <code class="docutils literal notranslate"><span class="pre">objc_no_direct_instance_variable_assignment</span></code>.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@interface</span> <span class="bp">MyClass</span> : <span class="bp">NSObject</span> <span class="p">{}</span>
+<span class="k">@property</span> <span class="p">(</span><span class="k">readonly</span><span class="p">)</span> <span class="kt">id</span> <span class="n">A</span><span class="p">;</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">fAnnotated</span> <span class="n">__attribute__</span><span class="p">((</span>
+ <span class="n">annotate</span><span class="p">(</span><span class="s">"objc_no_direct_instance_variable_assignment"</span><span class="p">)));</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">fNotAnnotated</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="bp">MyClass</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">fAnnotated</span> <span class="p">{</span>
+ <span class="n">_A</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">fNotAnnotated</span> <span class="p">{</span>
+ <span class="n">_A</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="c1">// no warn</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-osx-cocoa-instancevariableinvalidation-objc">
+<span id="alpha-osx-cocoa-instancevariableinvalidation"></span><h4><a class="toc-backref" href="#id144">1.2.6.3. alpha.osx.cocoa.InstanceVariableInvalidation (ObjC)</a><a class="headerlink" href="#alpha-osx-cocoa-instancevariableinvalidation-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check that the invalidatable instance variables are
+invalidated in the methods annotated with objc_instance_variable_invalidator.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@protocol</span> <span class="nc">Invalidation</span> <span class="o"><</span><span class="bp">NSObject</span><span class="o">></span>
+<span class="o">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="n">invalidate</span>
+ <span class="n">__attribute__</span><span class="p">((</span><span class="n">annotate</span><span class="p">(</span><span class="s">"objc_instance_variable_invalidator"</span><span class="p">)));</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">InvalidationImpObj</span> : <span class="bp">NSObject</span> <span class="o"><</span><span class="n">Invalidation</span><span class="o">></span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">SubclassInvalidationImpObj</span> : <span class="nc">InvalidationImpObj</span> <span class="p">{</span>
+ <span class="n">InvalidationImpObj</span> <span class="o">*</span><span class="n">var</span><span class="p">;</span>
+<span class="p">}</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="nf">invalidate</span><span class="p">;</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">SubclassInvalidationImpObj</span>
+<span class="p">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="nf">invalidate</span> <span class="p">{}</span>
+<span class="k">@end</span>
+<span class="c1">// warn: var needs to be invalidated or set to nil</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-osx-cocoa-missinginvalidationmethod-objc">
+<span id="alpha-osx-cocoa-missinginvalidationmethod"></span><h4><a class="toc-backref" href="#id145">1.2.6.4. alpha.osx.cocoa.MissingInvalidationMethod (ObjC)</a><a class="headerlink" href="#alpha-osx-cocoa-missinginvalidationmethod-objc" title="Permalink to this headline">¶</a></h4>
+<p>Check that the invalidation methods are present in classes that contain invalidatable instance variables.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="k">@protocol</span> <span class="nc">Invalidation</span> <span class="o"><</span><span class="bp">NSObject</span><span class="o">></span>
+<span class="o">-</span> <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">invalidate</span>
+ <span class="n">__attribute__</span><span class="p">((</span><span class="n">annotate</span><span class="p">(</span><span class="s">"objc_instance_variable_invalidator"</span><span class="p">)));</span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">NeedInvalidation</span> : <span class="bp">NSObject</span> <span class="o"><</span><span class="n">Invalidation</span><span class="o">></span>
+<span class="k">@end</span>
+
+<span class="k">@interface</span> <span class="nc">MissingInvalidationMethodDecl</span> : <span class="bp">NSObject</span> <span class="p">{</span>
+ <span class="n">NeedInvalidation</span> <span class="o">*</span><span class="n">Var</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+<span class="k">@end</span>
+
+<span class="k">@implementation</span> <span class="nc">MissingInvalidationMethodDecl</span>
+<span class="k">@end</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-osx-cocoa-localizability-pluralmisusechecker-objc">
+<span id="alpha-osx-cocoa-localizability-pluralmisusechecker"></span><h4><a class="toc-backref" href="#id146">1.2.6.5. alpha.osx.cocoa.localizability.PluralMisuseChecker (ObjC)</a><a class="headerlink" href="#alpha-osx-cocoa-localizability-pluralmisusechecker-objc" title="Permalink to this headline">¶</a></h4>
+<p>Warns against using one vs. many plural pattern in code when generating localized strings.</p>
+<div class="highlight-objc notranslate"><div class="highlight"><pre><span></span><span class="bp">NSString</span> <span class="o">*</span><span class="n">reminderText</span> <span class="o">=</span>
+ <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"None"</span><span class="p">,</span> <span class="s">@"Indicates no reminders"</span><span class="p">);</span>
+<span class="k">if</span> <span class="p">(</span><span class="n">reminderCount</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Warning: Plural cases are not supported across all languages.</span>
+ <span class="c1">// Use a .stringsdict file instead</span>
+ <span class="n">reminderText</span> <span class="o">=</span>
+ <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"1 Reminder"</span><span class="p">,</span> <span class="s">@"Indicates single reminder"</span><span class="p">);</span>
+<span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">reminderCount</span> <span class="o">>=</span> <span class="mi">2</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Warning: Plural cases are not supported across all languages.</span>
+ <span class="c1">// Use a .stringsdict file instead</span>
+ <span class="n">reminderText</span> <span class="o">=</span>
+ <span class="p">[</span><span class="bp">NSString</span> <span class="nl">stringWithFormat</span><span class="p">:</span>
+ <span class="n">NSLocalizedString</span><span class="p">(</span><span class="s">@"%@ Reminders"</span><span class="p">,</span> <span class="s">@"Indicates multiple reminders"</span><span class="p">),</span>
+ <span class="n">reminderCount</span><span class="p">];</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-security">
+<h3><a class="toc-backref" href="#id147">1.2.7. alpha.security</a><a class="headerlink" href="#alpha-security" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-security-arraybound-c">
+<span id="alpha-security-arraybound"></span><h4><a class="toc-backref" href="#id148">1.2.7.1. alpha.security.ArrayBound (C)</a><a class="headerlink" href="#alpha-security-arraybound-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn about buffer overflows (older checker).</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">s</span> <span class="o">=</span> <span class="s">""</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="n">c</span> <span class="o">=</span> <span class="n">s</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="k">struct</span> <span class="n">seven_words</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">c</span><span class="p">[</span><span class="mi">7</span><span class="p">];</span>
+<span class="p">};</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">struct</span> <span class="n">seven_words</span> <span class="n">a</span><span class="p">,</span> <span class="o">*</span><span class="n">p</span><span class="p">;</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="o">&</span><span class="n">a</span><span class="p">;</span>
+ <span class="n">p</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span><span class="p">;</span>
+ <span class="n">p</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span><span class="p">;</span>
+ <span class="n">p</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// note: requires unix.Malloc or</span>
+<span class="c1">// alpha.unix.MallocWithAnnotations checks enabled.</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">12</span><span class="p">);</span>
+ <span class="n">p</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="mi">4</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">a</span><span class="p">[</span><span class="mi">2</span><span class="p">];</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">b</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span><span class="o">*</span><span class="p">)</span><span class="n">a</span><span class="p">;</span>
+ <span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">3</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-security-arrayboundv2-c">
+<span id="alpha-security-arrayboundv2"></span><h4><a class="toc-backref" href="#id149">1.2.7.2. alpha.security.ArrayBoundV2 (C)</a><a class="headerlink" href="#alpha-security-arrayboundv2-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn about buffer overflows (newer checker).</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="o">*</span><span class="n">s</span> <span class="o">=</span> <span class="s">""</span><span class="p">;</span>
+ <span class="kt">char</span> <span class="n">c</span> <span class="o">=</span> <span class="n">s</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">buf</span><span class="p">[</span><span class="mi">100</span><span class="p">];</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">buf</span><span class="p">;</span>
+ <span class="n">p</span> <span class="o">=</span> <span class="n">p</span> <span class="o">+</span> <span class="mi">99</span><span class="p">;</span>
+ <span class="n">p</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// note: compiler has internal check for this.</span>
+<span class="c1">// Use -Wno-array-bounds to suppress compiler warning.</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">buf</span><span class="p">[</span><span class="mi">100</span><span class="p">][</span><span class="mi">100</span><span class="p">];</span>
+ <span class="n">buf</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="c1">// note: requires alpha.security.taint check turned on.</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">s</span><span class="p">[]</span> <span class="o">=</span> <span class="s">"abc"</span><span class="p">;</span>
+ <span class="kt">int</span> <span class="n">x</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span>
+ <span class="kt">char</span> <span class="n">c</span> <span class="o">=</span> <span class="n">s</span><span class="p">[</span><span class="n">x</span><span class="p">];</span> <span class="c1">// warn: index is tainted</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-security-mallocoverflow-c">
+<span id="alpha-security-mallocoverflow"></span><h4><a class="toc-backref" href="#id150">1.2.7.3. alpha.security.MallocOverflow (C)</a><a class="headerlink" href="#alpha-security-mallocoverflow-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for overflows in the arguments to malloc().</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="n">n</span> <span class="o">*</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-security-mmapwriteexec-c">
+<span id="alpha-security-mmapwriteexec"></span><h4><a class="toc-backref" href="#id151">1.2.7.4. alpha.security.MmapWriteExec (C)</a><a class="headerlink" href="#alpha-security-mmapwriteexec-c" title="Permalink to this headline">¶</a></h4>
+<p>Warn on mmap() calls that are both writable and executable.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">void</span> <span class="o">*</span><span class="n">c</span> <span class="o">=</span> <span class="n">mmap</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="n">PROT_READ</span> <span class="o">|</span> <span class="n">PROT_WRITE</span> <span class="o">|</span> <span class="n">PROT_EXEC</span><span class="p">,</span>
+ <span class="n">MAP_PRIVATE</span> <span class="o">|</span> <span class="n">MAP_ANON</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span>
+ <span class="c1">// warn: Both PROT_WRITE and PROT_EXEC flags are set. This can lead to</span>
+ <span class="c1">// exploitable memory regions, which could be overwritten with malicious</span>
+ <span class="c1">// code</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-security-returnptrrange-c">
+<span id="alpha-security-returnptrrange"></span><h4><a class="toc-backref" href="#id152">1.2.7.5. alpha.security.ReturnPtrRange (C)</a><a class="headerlink" href="#alpha-security-returnptrrange-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for an out-of-bound pointer being returned to callers.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="k">static</span> <span class="kt">int</span> <span class="n">A</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
+
+<span class="kt">int</span> <span class="o">*</span><span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">A</span> <span class="o">+</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+
+<span class="kt">int</span> <span class="nf">test</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">x</span><span class="p">;</span>
+ <span class="k">return</span> <span class="n">x</span><span class="p">;</span> <span class="c1">// warn: undefined or garbage returned</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-security-taint-taintpropagation-c-c">
+<span id="alpha-security-taint-taintpropagation"></span><h4><a class="toc-backref" href="#id153">1.2.7.6. alpha.security.taint.TaintPropagation (C, C++)</a><a class="headerlink" href="#alpha-security-taint-taintpropagation-c-c" title="Permalink to this headline">¶</a></h4>
+<p>Generate taint information used by other checkers.
+A data is tainted when it comes from an unreliable source.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">x</span> <span class="o">=</span> <span class="n">getchar</span><span class="p">();</span> <span class="c1">// 'x' marked as tainted</span>
+ <span class="n">system</span><span class="p">(</span><span class="o">&</span><span class="n">x</span><span class="p">);</span> <span class="c1">// warn: untrusted data is passed to a system call</span>
+<span class="p">}</span>
+
+<span class="c1">// note: compiler internally checks if the second param to</span>
+<span class="c1">// sprintf is a string literal or not.</span>
+<span class="c1">// Use -Wno-format-security to suppress compiler warning.</span>
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">char</span> <span class="n">s</span><span class="p">[</span><span class="mi">10</span><span class="p">],</span> <span class="n">buf</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
+ <span class="n">fscanf</span><span class="p">(</span><span class="n">stdin</span><span class="p">,</span> <span class="s">"%s"</span><span class="p">,</span> <span class="n">s</span><span class="p">);</span> <span class="c1">// 's' marked as tainted</span>
+
+ <span class="n">sprintf</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">s</span><span class="p">);</span> <span class="c1">// warn: untrusted data as a format string</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">size_t</span> <span class="n">ts</span><span class="p">;</span>
+ <span class="n">scanf</span><span class="p">(</span><span class="s">"%zd"</span><span class="p">,</span> <span class="o">&</span><span class="n">ts</span><span class="p">);</span> <span class="c1">// 'ts' marked as tainted</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span> <span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="n">ts</span> <span class="o">*</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">));</span>
+ <span class="c1">// warn: untrusted data as buffer size</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="alpha-unix">
+<h3><a class="toc-backref" href="#id154">1.2.8. alpha.unix</a><a class="headerlink" href="#alpha-unix" title="Permalink to this headline">¶</a></h3>
+<div class="section" id="alpha-unix-blockincriticalsection-c">
+<span id="alpha-unix-blockincriticalsection"></span><h4><a class="toc-backref" href="#id155">1.2.8.1. alpha.unix.BlockInCriticalSection (C)</a><a class="headerlink" href="#alpha-unix-blockincriticalsection-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for calls to blocking functions inside a critical section.
+Applies to: <code class="docutils literal notranslate"><span class="pre">lock,</span> <span class="pre">unlock,</span> <span class="pre">sleep,</span> <span class="pre">getc,</span> <span class="pre">fgets,</span> <span class="pre">read,</span> <span class="pre">recv,</span> <span class="pre">pthread_mutex_lock,</span></code>
+`` pthread_mutex_unlock, mtx_lock, mtx_timedlock, mtx_trylock, mtx_unlock, lock_guard, unique_lock``</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">mutex</span> <span class="n">m</span><span class="p">;</span>
+ <span class="n">m</span><span class="p">.</span><span class="n">lock</span><span class="p">();</span>
+ <span class="n">sleep</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span> <span class="c1">// warn: a blocking function sleep is called inside a critical</span>
+ <span class="c1">// section</span>
+ <span class="n">m</span><span class="p">.</span><span class="n">unlock</span><span class="p">();</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-chroot-c">
+<span id="alpha-unix-chroot"></span><h4><a class="toc-backref" href="#id156">1.2.8.2. alpha.unix.Chroot (C)</a><a class="headerlink" href="#alpha-unix-chroot-c" title="Permalink to this headline">¶</a></h4>
+<p>Check improper use of chroot.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">f</span><span class="p">();</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">chroot</span><span class="p">(</span><span class="s">"/usr/local"</span><span class="p">);</span>
+ <span class="n">f</span><span class="p">();</span> <span class="c1">// warn: no call of chdir("/") immediately after chroot</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-pthreadlock-c">
+<span id="alpha-unix-pthreadlock"></span><h4><a class="toc-backref" href="#id157">1.2.8.3. alpha.unix.PthreadLock (C)</a><a class="headerlink" href="#alpha-unix-pthreadlock-c" title="Permalink to this headline">¶</a></h4>
+<p>Simple lock -> unlock checker.
+Applies to: <code class="docutils literal notranslate"><span class="pre">pthread_mutex_lock,</span> <span class="pre">pthread_rwlock_rdlock,</span> <span class="pre">pthread_rwlock_wrlock,</span> <span class="pre">lck_mtx_lock,</span> <span class="pre">lck_rw_lock_exclusive</span></code>
+<code class="docutils literal notranslate"><span class="pre">lck_rw_lock_shared,</span> <span class="pre">pthread_mutex_trylock,</span> <span class="pre">pthread_rwlock_tryrdlock,</span> <span class="pre">pthread_rwlock_tryrwlock,</span> <span class="pre">lck_mtx_try_lock,</span>
+<span class="pre">lck_rw_try_lock_exclusive,</span> <span class="pre">lck_rw_try_lock_shared,</span> <span class="pre">pthread_mutex_unlock,</span> <span class="pre">pthread_rwlock_unlock,</span> <span class="pre">lck_mtx_unlock,</span> <span class="pre">lck_rw_done</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="n">pthread_mutex_t</span> <span class="n">mtx</span><span class="p">;</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">pthread_mutex_lock</span><span class="p">(</span><span class="o">&</span><span class="n">mtx</span><span class="p">);</span>
+ <span class="n">pthread_mutex_lock</span><span class="p">(</span><span class="o">&</span><span class="n">mtx</span><span class="p">);</span>
+ <span class="c1">// warn: this lock has already been acquired</span>
+<span class="p">}</span>
+
+<span class="n">lck_mtx_t</span> <span class="n">lck1</span><span class="p">,</span> <span class="n">lck2</span><span class="p">;</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">lck_mtx_lock</span><span class="p">(</span><span class="o">&</span><span class="n">lck1</span><span class="p">);</span>
+ <span class="n">lck_mtx_lock</span><span class="p">(</span><span class="o">&</span><span class="n">lck2</span><span class="p">);</span>
+ <span class="n">lck_mtx_unlock</span><span class="p">(</span><span class="o">&</span><span class="n">lck1</span><span class="p">);</span>
+ <span class="c1">// warn: this was not the most recently acquired lock</span>
+<span class="p">}</span>
+
+<span class="n">lck_mtx_t</span> <span class="n">lck1</span><span class="p">,</span> <span class="n">lck2</span><span class="p">;</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">lck_mtx_try_lock</span><span class="p">(</span><span class="o">&</span><span class="n">lck1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span>
+ <span class="k">return</span><span class="p">;</span>
+
+ <span class="n">lck_mtx_lock</span><span class="p">(</span><span class="o">&</span><span class="n">lck2</span><span class="p">);</span>
+ <span class="n">lck_mtx_unlock</span><span class="p">(</span><span class="o">&</span><span class="n">lck1</span><span class="p">);</span>
+ <span class="c1">// warn: this was not the most recently acquired lock</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-simplestream-c">
+<span id="alpha-unix-simplestream"></span><h4><a class="toc-backref" href="#id158">1.2.8.4. alpha.unix.SimpleStream (C)</a><a class="headerlink" href="#alpha-unix-simplestream-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for misuses of stream APIs. Check for misuses of stream APIs: <code class="docutils literal notranslate"><span class="pre">fopen,</span> <span class="pre">fclose</span></code>
+(demo checker, the subject of the demo (<a class="reference external" href="http://llvm.org/devmtg/2012-11/Zaks-Rose-Checker24Hours.pdf">Slides</a> ,
+<a class="reference external" href="https://youtu.be/kdxlsP5QVPw">Video</a>) by Anna Zaks and Jordan Rose presented at the
+<a class="reference external" href="http://llvm.org/devmtg/2012-11/">2012 LLVM Developersâ Meeting</a>).</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"myfile.txt"</span><span class="p">,</span> <span class="s">"w"</span><span class="p">);</span>
+<span class="p">}</span> <span class="c1">// warn: opened file is never closed</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">F</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"myfile.txt"</span><span class="p">,</span> <span class="s">"w"</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">F</span><span class="p">)</span>
+ <span class="n">fclose</span><span class="p">(</span><span class="n">F</span><span class="p">);</span>
+
+ <span class="n">fclose</span><span class="p">(</span><span class="n">F</span><span class="p">);</span> <span class="c1">// warn: closing a previously closed file stream</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-stream-c">
+<span id="alpha-unix-stream"></span><h4><a class="toc-backref" href="#id159">1.2.8.5. alpha.unix.Stream (C)</a><a class="headerlink" href="#alpha-unix-stream-c" title="Permalink to this headline">¶</a></h4>
+<p>Check stream handling functions: <code class="docutils literal notranslate"><span class="pre">fopen,</span> <span class="pre">tmpfile,</span> <span class="pre">fclose,</span> <span class="pre">fread,</span> <span class="pre">fwrite,</span> <span class="pre">fseek,</span> <span class="pre">ftell,</span> <span class="pre">rewind,</span> <span class="pre">fgetpos,</span></code>
+<code class="docutils literal notranslate"><span class="pre">fsetpos,</span> <span class="pre">clearerr,</span> <span class="pre">feof,</span> <span class="pre">ferror,</span> <span class="pre">fileno</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="s">"r"</span><span class="p">);</span>
+<span class="p">}</span> <span class="c1">// warn: opened file is never closed</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="s">"r"</span><span class="p">);</span>
+ <span class="n">fseek</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">SEEK_SET</span><span class="p">);</span> <span class="c1">// warn: stream pointer might be NULL</span>
+ <span class="n">fclose</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="s">"r"</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="n">p</span><span class="p">)</span>
+ <span class="n">fseek</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">);</span>
+ <span class="c1">// warn: third arg should be SEEK_SET, SEEK_END, or SEEK_CUR</span>
+
+ <span class="n">fclose</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="s">"r"</span><span class="p">);</span>
+ <span class="n">fclose</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+ <span class="n">fclose</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn: already closed</span>
+<span class="p">}</span>
+
+<span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">FILE</span> <span class="o">*</span><span class="n">p</span> <span class="o">=</span> <span class="n">tmpfile</span><span class="p">();</span>
+ <span class="n">ftell</span><span class="p">(</span><span class="n">p</span><span class="p">);</span> <span class="c1">// warn: stream pointer might be NULL</span>
+ <span class="n">fclose</span><span class="p">(</span><span class="n">p</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-cstring-bufferoverlap-c">
+<span id="alpha-unix-cstring-bufferoverlap"></span><h4><a class="toc-backref" href="#id160">1.2.8.6. alpha.unix.cstring.BufferOverlap (C)</a><a class="headerlink" href="#alpha-unix-cstring-bufferoverlap-c" title="Permalink to this headline">¶</a></h4>
+<p>Checks for overlap in two buffer arguments. Applies to: <code class="docutils literal notranslate"><span class="pre">memcpy,</span> <span class="pre">mempcpy</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span><span class="p">};</span>
+ <span class="n">memcpy</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="n">a</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">8</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-cstring-notnullterminated-c">
+<span id="alpha-unix-cstring-notnullterminated"></span><h4><a class="toc-backref" href="#id161">1.2.8.7. alpha.unix.cstring.NotNullTerminated (C)</a><a class="headerlink" href="#alpha-unix-cstring-notnullterminated-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for arguments which are not null-terminated strings; applies to: <code class="docutils literal notranslate"><span class="pre">strlen,</span> <span class="pre">strnlen,</span> <span class="pre">strcpy,</span> <span class="pre">strncpy,</span> <span class="pre">strcat,</span> <span class="pre">strncat</span></code>.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">strlen</span><span class="p">((</span><span class="kt">char</span> <span class="o">*</span><span class="p">)</span><span class="o">&</span><span class="n">test</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-unix-cstring-outofbounds-c">
+<span id="alpha-unix-cstring-outofbounds"></span><h4><a class="toc-backref" href="#id162">1.2.8.8. alpha.unix.cstring.OutOfBounds (C)</a><a class="headerlink" href="#alpha-unix-cstring-outofbounds-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for out-of-bounds access in string functions; applies to:`` strncopy, strncat``.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">y</span> <span class="o">=</span> <span class="n">strlen</span><span class="p">((</span><span class="kt">char</span> <span class="o">*</span><span class="p">)</span><span class="o">&</span><span class="n">test</span><span class="p">);</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-nondeterminism-pointeriteration-c">
+<span id="alpha-nondeterminism-pointeriteration"></span><h4><a class="toc-backref" href="#id163">1.2.8.9. alpha.nondeterminism.PointerIteration (C++)</a><a class="headerlink" href="#alpha-nondeterminism-pointeriteration-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for non-determinism caused by iterating unordered containers of pointers.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="mi">2</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">unordered_set</span><span class="o"><</span><span class="kt">int</span> <span class="o">*></span> <span class="n">UnorderedPtrSet</span> <span class="o">=</span> <span class="p">{</span><span class="o">&</span><span class="n">a</span><span class="p">,</span> <span class="o">&</span><span class="n">b</span><span class="p">};</span>
+
+ <span class="k">for</span> <span class="p">(</span><span class="k">auto</span> <span class="nl">i</span> <span class="p">:</span> <span class="n">UnorderedPtrSet</span><span class="p">)</span> <span class="c1">// warn</span>
+ <span class="n">f</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="alpha-nondeterminism-pointersorting-c">
+<span id="alpha-nondeterminism-pointersorting"></span><h4><a class="toc-backref" href="#id164">1.2.8.10. alpha.nondeterminism.PointerSorting (C++)</a><a class="headerlink" href="#alpha-nondeterminism-pointersorting-c" title="Permalink to this headline">¶</a></h4>
+<p>Check for non-determinism caused by sorting of pointers.</p>
+<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span> <span class="nf">test</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="n">a</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="mi">2</span><span class="p">;</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span> <span class="o">*></span> <span class="n">V</span> <span class="o">=</span> <span class="p">{</span><span class="o">&</span><span class="n">a</span><span class="p">,</span> <span class="o">&</span><span class="n">b</span><span class="p">};</span>
+ <span class="n">std</span><span class="o">::</span><span class="n">sort</span><span class="p">(</span><span class="n">V</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span> <span class="n">V</span><span class="p">.</span><span class="n">end</span><span class="p">());</span> <span class="c1">// warn</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</div>
+</div>
+</div>
+<div class="section" id="debug-checkers">
+<h2><a class="toc-backref" href="#id165">1.3. Debug Checkers</a><a class="headerlink" href="#debug-checkers" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="debug">
+<span id="id11"></span><h3><a class="toc-backref" href="#id166">1.3.1. debug</a><a class="headerlink" href="#debug" title="Permalink to this headline">¶</a></h3>
+<p>Checkers used for debugging the analyzer.
+<a class="reference internal" href="developer-docs/DebugChecks.html"><span class="doc">Debug Checks</span></a> page contains a detailed description.</p>
+<div class="section" id="debug-analysisorder">
+<span id="id12"></span><h4><a class="toc-backref" href="#id167">1.3.1.1. debug.AnalysisOrder</a><a class="headerlink" href="#debug-analysisorder" title="Permalink to this headline">¶</a></h4>
+<p>Print callbacks that are called during analysis in order.</p>
+</div>
+<div class="section" id="debug-configdumper">
+<span id="id13"></span><h4><a class="toc-backref" href="#id168">1.3.1.2. debug.ConfigDumper</a><a class="headerlink" href="#debug-configdumper" title="Permalink to this headline">¶</a></h4>
+<p>Dump config table.</p>
+</div>
+<div class="section" id="debug-dumpcfg-display">
+<span id="id14"></span><h4><a class="toc-backref" href="#id169">1.3.1.3. debug.DumpCFG Display</a><a class="headerlink" href="#debug-dumpcfg-display" title="Permalink to this headline">¶</a></h4>
+<p>Control-Flow Graphs.</p>
+</div>
+<div class="section" id="debug-dumpcallgraph">
+<span id="id15"></span><h4><a class="toc-backref" href="#id170">1.3.1.4. debug.DumpCallGraph</a><a class="headerlink" href="#debug-dumpcallgraph" title="Permalink to this headline">¶</a></h4>
+<p>Display Call Graph.</p>
+</div>
+<div class="section" id="debug-dumpcalls">
+<span id="id16"></span><h4><a class="toc-backref" href="#id171">1.3.1.5. debug.DumpCalls</a><a class="headerlink" href="#debug-dumpcalls" title="Permalink to this headline">¶</a></h4>
+<p>Print calls as they are traversed by the engine.</p>
+</div>
+<div class="section" id="debug-dumpdominators">
+<span id="id17"></span><h4><a class="toc-backref" href="#id172">1.3.1.6. debug.DumpDominators</a><a class="headerlink" href="#debug-dumpdominators" title="Permalink to this headline">¶</a></h4>
+<p>Print the dominance tree for a given CFG.</p>
+</div>
+<div class="section" id="debug-dumplivevars">
+<span id="id18"></span><h4><a class="toc-backref" href="#id173">1.3.1.7. debug.DumpLiveVars</a><a class="headerlink" href="#debug-dumplivevars" title="Permalink to this headline">¶</a></h4>
+<p>Print results of live variable analysis.</p>
+</div>
+<div class="section" id="debug-dumptraversal">
+<span id="id19"></span><h4><a class="toc-backref" href="#id174">1.3.1.8. debug.DumpTraversal</a><a class="headerlink" href="#debug-dumptraversal" title="Permalink to this headline">¶</a></h4>
+<p>Print branch conditions as they are traversed by the engine.</p>
+</div>
+<div class="section" id="debug-exprinspection">
+<span id="id20"></span><h4><a class="toc-backref" href="#id175">1.3.1.9. debug.ExprInspection</a><a class="headerlink" href="#debug-exprinspection" title="Permalink to this headline">¶</a></h4>
+<p>Check the analyzerâs understanding of expressions.</p>
+</div>
+<div class="section" id="debug-stats">
+<span id="id21"></span><h4><a class="toc-backref" href="#id176">1.3.1.10. debug.Stats</a><a class="headerlink" href="#debug-stats" title="Permalink to this headline">¶</a></h4>
+<p>Emit warnings with analyzer statistics.</p>
+</div>
+<div class="section" id="debug-tainttest">
+<span id="id22"></span><h4><a class="toc-backref" href="#id177">1.3.1.11. debug.TaintTest</a><a class="headerlink" href="#debug-tainttest" title="Permalink to this headline">¶</a></h4>
+<p>Mark tainted symbols as such.</p>
+</div>
+<div class="section" id="debug-viewcfg">
+<span id="id23"></span><h4><a class="toc-backref" href="#id178">1.3.1.12. debug.ViewCFG</a><a class="headerlink" href="#debug-viewcfg" title="Permalink to this headline">¶</a></h4>
+<p>View Control-Flow Graphs using GraphViz.</p>
+</div>
+<div class="section" id="debug-viewcallgraph">
+<span id="id24"></span><h4><a class="toc-backref" href="#id179">1.3.1.13. debug.ViewCallGraph</a><a class="headerlink" href="#debug-viewcallgraph" title="Permalink to this headline">¶</a></h4>
+<p>View Call Graph using GraphViz.</p>
+</div>
+<div class="section" id="debug-viewexplodedgraph">
+<span id="id25"></span><h4><a class="toc-backref" href="#id180">1.3.1.14. debug.ViewExplodedGraph</a><a class="headerlink" href="#debug-viewexplodedgraph" title="Permalink to this headline">¶</a></h4>
+<p>View Exploded Graphs using GraphViz.</p>
+</div>
+</div>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="../ClangStaticAnalyzer.html">Clang Static Analyzer</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="user-docs.html">2. User Docs</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,96 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3. Developer Docs — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../_static/jquery.js"></script>
+ <script type="text/javascript" src="../_static/underscore.js"></script>
+ <script type="text/javascript" src="../_static/doctools.js"></script>
+ <script type="text/javascript" src="../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../genindex.html" />
+ <link rel="search" title="Search" href="../search.html" />
+ <link rel="next" title="3.1. Debug Checks" href="developer-docs/DebugChecks.html" />
+ <link rel="prev" title="2. User Docs" href="user-docs.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3. Developer Docs</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="user-docs.html">2. User Docs</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="developer-docs/DebugChecks.html">3.1. Debug Checks</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="developer-docs">
+<h1>3. Developer Docs<a class="headerlink" href="#developer-docs" title="Permalink to this headline">¶</a></h1>
+<p>Contents:</p>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="developer-docs/DebugChecks.html">3.1. Debug Checks</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/DebugChecks.html#general-analysis-dumpers">3.1.1. General Analysis Dumpers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/DebugChecks.html#path-tracking">3.1.2. Path Tracking</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/DebugChecks.html#state-checking">3.1.3. State Checking</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/DebugChecks.html#statistics">3.1.4. Statistics</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/DebugChecks.html#output-testing-checkers">3.1.5. Output testing checkers</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="developer-docs/IPA.html">3.2. Inlining</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/IPA.html#c-inlining">3.2.1. c++-inlining</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/IPA.html#basics-of-implementation">3.2.2. Basics of Implementation</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="developer-docs/InitializerLists.html">3.3. Initializer List</a></li>
+<li class="toctree-l1"><a class="reference internal" href="developer-docs/nullability.html">3.4. Nullability Checks</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/nullability.html#inlining">3.4.1. Inlining</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/nullability.html#annotations-on-multi-level-pointers">3.4.2. Annotations on multi level pointers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/nullability.html#implementation-notes">3.4.3. Implementation notes</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="developer-docs/RegionStore.html">3.5. Region Store</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/RegionStore.html#binding-invalidation">3.5.1. Binding Invalidation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/RegionStore.html#objcivarregions">3.5.2. ObjCIvarRegions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/RegionStore.html#region-invalidation">3.5.3. Region Invalidation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/RegionStore.html#default-bindings">3.5.4. Default Bindings</a></li>
+<li class="toctree-l2"><a class="reference internal" href="developer-docs/RegionStore.html#lazy-bindings-lazycompoundval">3.5.5. Lazy Bindings (LazyCompoundVal)</a></li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="user-docs.html">2. User Docs</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="developer-docs/DebugChecks.html">3.1. Debug Checks</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/DebugChecks.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/DebugChecks.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/DebugChecks.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/DebugChecks.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,332 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3.1. Debug Checks — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../../_static/jquery.js"></script>
+ <script type="text/javascript" src="../../_static/underscore.js"></script>
+ <script type="text/javascript" src="../../_static/doctools.js"></script>
+ <script type="text/javascript" src="../../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../../genindex.html" />
+ <link rel="search" title="Search" href="../../search.html" />
+ <link rel="next" title="3.2. Inlining" href="IPA.html" />
+ <link rel="prev" title="3. Developer Docs" href="../developer-docs.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3.1. Debug Checks</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="../developer-docs.html">3. Developer Docs</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="IPA.html">3.2. Inlining</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="debug-checks">
+<h1>3.1. Debug Checks<a class="headerlink" href="#debug-checks" title="Permalink to this headline">¶</a></h1>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#general-analysis-dumpers" id="id1">General Analysis Dumpers</a></li>
+<li><a class="reference internal" href="#path-tracking" id="id2">Path Tracking</a></li>
+<li><a class="reference internal" href="#state-checking" id="id3">State Checking</a><ul>
+<li><a class="reference internal" href="#exprinspection-checks" id="id4">ExprInspection checks</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#statistics" id="id5">Statistics</a></li>
+<li><a class="reference internal" href="#output-testing-checkers" id="id6">Output testing checkers</a></li>
+</ul>
+</div>
+<p>The analyzer contains a number of checkers which can aid in debugging. Enable
+them by using the â-analyzer-checker=â flag, followed by the name of the
+checker.</p>
+<div class="section" id="general-analysis-dumpers">
+<h2><a class="toc-backref" href="#id1">3.1.1. General Analysis Dumpers</a><a class="headerlink" href="#general-analysis-dumpers" title="Permalink to this headline">¶</a></h2>
+<p>These checkers are used to dump the results of various infrastructural analyses
+to stderr. Some checkers also have âviewâ variants, which will display a graph
+using a âdotâ format viewer (such as Graphviz on macOS) instead.</p>
+<ul class="simple">
+<li>debug.DumpCallGraph, debug.ViewCallGraph: Show the call graph generated for
+the current translation unit. This is used to determine the order in which to
+analyze functions when inlining is enabled.</li>
+<li>debug.DumpCFG, debug.ViewCFG: Show the CFG generated for each top-level
+function being analyzed.</li>
+<li>debug.DumpDominators: Shows the dominance tree for the CFG of each top-level
+function.</li>
+<li>debug.DumpLiveVars: Show the results of live variable analysis for each
+top-level function being analyzed.</li>
+<li>debug.DumpLiveStmts: Show the results of live statement analysis for each
+top-level function being analyzed.</li>
+<li>debug.ViewExplodedGraph: Show the Exploded Graphs generated for the
+analysis of different functions in the input translation unit. When there
+are several functions analyzed, display one graph per function. Beware
+that these graphs may grow very large, even for small functions.</li>
+</ul>
+</div>
+<div class="section" id="path-tracking">
+<h2><a class="toc-backref" href="#id2">3.1.2. Path Tracking</a><a class="headerlink" href="#path-tracking" title="Permalink to this headline">¶</a></h2>
+<p>These checkers print information about the path taken by the analyzer engine.</p>
+<ul class="simple">
+<li>debug.DumpCalls: Prints out every function or method call encountered during a
+path traversal. This is indented to show the call stack, but does NOT do any
+special handling of branches, meaning different paths could end up
+interleaved.</li>
+<li>debug.DumpTraversal: Prints the name of each branch statement encountered
+during a path traversal (âIfStmtâ, âWhileStmtâ, etc). Currently used to check
+whether the analysis engine is doing BFS or DFS.</li>
+</ul>
+</div>
+<div class="section" id="state-checking">
+<h2><a class="toc-backref" href="#id3">3.1.3. State Checking</a><a class="headerlink" href="#state-checking" title="Permalink to this headline">¶</a></h2>
+<p>These checkers will print out information about the analyzer state in the form
+of analysis warnings. They are intended for use with the -verify functionality
+in regression tests.</p>
+<ul class="simple">
+<li>debug.TaintTest: Prints out the word âtaintedâ for every expression that
+carries taint. At the time of this writing, taint was only introduced by the
+checks under experimental.security.taint.TaintPropagation; this checker may
+eventually move to the security.taint package.</li>
+<li>debug.ExprInspection: Responds to certain function calls, which are modeled
+after builtins. These function calls should affect the program state other
+than the evaluation of their arguments; to use them, you will need to declare
+them within your test file. The available functions are described below.</li>
+</ul>
+<p>(FIXME: debug.ExprInspection should probably be renamed, since it no longer only
+inspects expressions.)</p>
+<div class="section" id="exprinspection-checks">
+<h3><a class="toc-backref" href="#id4">3.1.3.1. ExprInspection checks</a><a class="headerlink" href="#exprinspection-checks" title="Permalink to this headline">¶</a></h3>
+<ul>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_eval(bool);</span></code></p>
+<p>Prints TRUE if the argument is known to have a non-zero value, FALSE if the
+argument is known to have a zero or null value, and UNKNOWN if the argument
+isnât sufficiently constrained on this path. You can use this to test other
+values by using expressions like âx == 5â. Note that this functionality is
+currently DISABLED in inlined functions, since different calls to the same
+inlined function could provide different information, making it difficult to
+write proper -verify directives.</p>
+<p>In C, the argument can be typed as âintâ or as â_Boolâ.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>clang_analyzer_eval(x); // expected-warning{{UNKNOWN}}
+if (!x) return;
+clang_analyzer_eval(x); // expected-warning{{TRUE}}
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_checkInlined(bool);</span></code></p>
+<p>If a call occurs within an inlined function, prints TRUE or FALSE according to
+the value of its argument. If a call occurs outside an inlined function,
+nothing is printed.</p>
+<p>The intended use of this checker is to assert that a function is inlined at
+least once (by passing âtrueâ and expecting a warning), or to assert that a
+function is never inlined (by passing âfalseâ and expecting no warning). The
+argument is technically unnecessary but is intended to clarify intent.</p>
+<p>You might wonder why we canât print TRUE if a function is ever inlined and
+FALSE if it is not. The problem is that any inlined function could conceivably
+also be analyzed as a top-level function (in which case both TRUE and FALSE
+would be printed), depending on the value of the -analyzer-inlining option.</p>
+<p>In C, the argument can be typed as âintâ or as â_Boolâ.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">inlined</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">clang_analyzer_checkInlined</span><span class="p">(</span><span class="n">true</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="n">TRUE</span><span class="p">}}</span>
+ <span class="k">return</span> <span class="mi">42</span><span class="p">;</span>
+<span class="p">}</span>
+
+<span class="n">void</span> <span class="n">topLevel</span><span class="p">()</span> <span class="p">{</span>
+ <span class="n">clang_analyzer_checkInlined</span><span class="p">(</span><span class="n">false</span><span class="p">);</span> <span class="o">//</span> <span class="n">no</span><span class="o">-</span><span class="n">warning</span> <span class="p">(</span><span class="ow">not</span> <span class="n">inlined</span><span class="p">)</span>
+ <span class="nb">int</span> <span class="n">value</span> <span class="o">=</span> <span class="n">inlined</span><span class="p">();</span>
+ <span class="o">//</span> <span class="n">This</span> <span class="n">assertion</span> <span class="n">will</span> <span class="ow">not</span> <span class="n">be</span> <span class="n">valid</span> <span class="k">if</span> <span class="n">the</span> <span class="n">previous</span> <span class="n">call</span> <span class="n">was</span> <span class="ow">not</span> <span class="n">inlined</span><span class="o">.</span>
+ <span class="n">clang_analyzer_eval</span><span class="p">(</span><span class="n">value</span> <span class="o">==</span> <span class="mi">42</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="n">TRUE</span><span class="p">}}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_warnIfReached();</span></code></p>
+<p>Generate a warning if this line of code gets reached by the analyzer.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="n">true</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">clang_analyzer_warnIfReached</span><span class="p">();</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="n">REACHABLE</span><span class="p">}}</span>
+<span class="p">}</span>
+<span class="k">else</span> <span class="p">{</span>
+ <span class="n">clang_analyzer_warnIfReached</span><span class="p">();</span> <span class="o">//</span> <span class="n">no</span><span class="o">-</span><span class="n">warning</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_numTimesReached();</span></code></p>
+<p>Same as above, but include the number of times this call expression
+gets reached by the analyzer during the current analysis.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">for</span> <span class="p">(</span><span class="nb">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">x</span> <span class="o"><</span> <span class="mi">3</span><span class="p">;</span> <span class="o">++</span><span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">clang_analyzer_numTimesReached</span><span class="p">();</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="mi">3</span><span class="p">}}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_warnOnDeadSymbol(int);</span></code></p>
+<p>Subscribe for a delayed warning when the symbol that represents the value of
+the argument is garbage-collected by the analyzer.</p>
+<p>When calling âclang_analyzer_warnOnDeadSymbol(x)â, if value of âxâ is a
+symbol, then this symbol is marked by the ExprInspection checker. Then,
+during each garbage collection run, the checker sees if the marked symbol is
+being collected and issues the âSYMBOL DEADâ warning if it does.
+This way you know where exactly, up to the line of code, the symbol dies.</p>
+<p>It is unlikely that you call this function after the symbol is already dead,
+because the very reference to it as the function argument prevents it from
+dying. However, if the argument is not a symbol but a concrete value,
+no warning would be issued.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">do</span> <span class="p">{</span>
+ <span class="nb">int</span> <span class="n">x</span> <span class="o">=</span> <span class="n">generate_some_integer</span><span class="p">();</span>
+ <span class="n">clang_analyzer_warnOnDeadSymbol</span><span class="p">(</span><span class="n">x</span><span class="p">);</span>
+<span class="p">}</span> <span class="k">while</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="n">SYMBOL</span> <span class="n">DEAD</span><span class="p">}}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_explain(a</span> <span class="pre">single</span> <span class="pre">argument</span> <span class="pre">of</span> <span class="pre">any</span> <span class="pre">type);</span></code></p>
+<p>This function explains the value of its argument in a human-readable manner
+in the warning message. You can make as many overrides of its prototype
+in the test code as necessary to explain various integral, pointer,
+or even record-type values. To simplify usage in C code (where overloading
+the function declaration is not allowed), you may append an arbitrary suffix
+to the function name, without affecting functionality.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>void clang_analyzer_explain(int);
+void clang_analyzer_explain(void *);
+
+// Useful in C code
+void clang_analyzer_explain_int(int);
+
+void foo(int param, void *ptr) {
+ clang_analyzer_explain(param); // expected-warning{{argument 'param'}}
+ clang_analyzer_explain_int(param); // expected-warning{{argument 'param'}}
+ if (!ptr)
+ clang_analyzer_explain(ptr); // expected-warning{{memory address '0'}}
+}
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_dump(</span> <span class="pre">/*</span> <span class="pre">a</span> <span class="pre">single</span> <span class="pre">argument</span> <span class="pre">of</span> <span class="pre">any</span> <span class="pre">type</span> <span class="pre">*/);</span></code></p>
+<p>Similar to clang_analyzer_explain, but produces a raw dump of the value,
+same as SVal::dump().</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>void clang_analyzer_dump(int);
+void foo(int x) {
+ clang_analyzer_dump(x); // expected-warning{{reg_$0<x>}}
+}
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">size_t</span> <span class="pre">clang_analyzer_getExtent(void</span> <span class="pre">*);</span></code></p>
+<p>This function returns the value that represents the extent of a memory region
+pointed to by the argument. This value is often difficult to obtain otherwise,
+because no valid code that produces this value. However, it may be useful
+for testing purposes, to see how well does the analyzer model region extents.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">foo</span><span class="p">()</span> <span class="p">{</span>
+ <span class="nb">int</span> <span class="n">x</span><span class="p">,</span> <span class="o">*</span><span class="n">y</span><span class="p">;</span>
+ <span class="n">size_t</span> <span class="n">xs</span> <span class="o">=</span> <span class="n">clang_analyzer_getExtent</span><span class="p">(</span><span class="o">&</span><span class="n">x</span><span class="p">);</span>
+ <span class="n">clang_analyzer_explain</span><span class="p">(</span><span class="n">xs</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="s1">'4'</span><span class="p">}}</span>
+ <span class="n">size_t</span> <span class="n">ys</span> <span class="o">=</span> <span class="n">clang_analyzer_getExtent</span><span class="p">(</span><span class="o">&</span><span class="n">y</span><span class="p">);</span>
+ <span class="n">clang_analyzer_explain</span><span class="p">(</span><span class="n">ys</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="s1">'8'</span><span class="p">}}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_printState();</span></code></p>
+<p>Dumps the current ProgramState to the stderr. Quickly lookup the program state
+at any execution point without ViewExplodedGraph or re-compiling the program.
+This is not very useful for writing tests (apart from testing how ProgramState
+gets printed), but useful for debugging tests. Also, this method doesnât
+produce a warning, so it gets printed on the console before all other
+ExprInspection warnings.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>void foo() {
+ int x = 1;
+ clang_analyzer_printState(); // Read the stderr!
+}
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_hashDump(int);</span></code></p>
+<p>The analyzer can generate a hash to identify reports. To debug what information
+is used to calculate this hash it is possible to dump the hashed string as a
+warning of an arbitrary expression using the function above.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">foo</span><span class="p">()</span> <span class="p">{</span>
+ <span class="nb">int</span> <span class="n">x</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="n">clang_analyzer_hashDump</span><span class="p">(</span><span class="n">x</span><span class="p">);</span> <span class="o">//</span> <span class="n">expected</span><span class="o">-</span><span class="n">warning</span><span class="p">{{</span><span class="n">hashed</span> <span class="n">string</span> <span class="k">for</span> <span class="n">x</span><span class="p">}}</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_denote(int,</span> <span class="pre">const</span> <span class="pre">char</span> <span class="pre">*);</span></code></p>
+<p>Denotes symbols with strings. A subsequent call to clang_analyzer_express()
+will expresses another symbol in terms of these string. Useful for testing
+relationships between different symbols.</p>
+<p>Example usage:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>void foo(int x) {
+ clang_analyzer_denote(x, "$x");
+ clang_analyzer_express(x + 1); // expected-warning{{$x + 1}}
+}
+</pre></div>
+</div>
+</li>
+<li><p class="first"><code class="docutils literal notranslate"><span class="pre">void</span> <span class="pre">clang_analyzer_express(int);</span></code></p>
+<p>See clang_analyzer_denote().</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="section" id="statistics">
+<h2><a class="toc-backref" href="#id5">3.1.4. Statistics</a><a class="headerlink" href="#statistics" title="Permalink to this headline">¶</a></h2>
+<p>The debug.Stats checker collects various information about the analysis of each
+function, such as how many blocks were reached and if the analyzer timed out.</p>
+<p>There is also an additional -analyzer-stats flag, which enables various
+statistics within the analyzer engine. Note the Stats checker (which produces at
+least one bug report per function) may actually change the values reported by
+-analyzer-stats.</p>
+</div>
+<div class="section" id="output-testing-checkers">
+<h2><a class="toc-backref" href="#id6">3.1.5. Output testing checkers</a><a class="headerlink" href="#output-testing-checkers" title="Permalink to this headline">¶</a></h2>
+<ul class="simple">
+<li>debug.ReportStmts reports a warning at <strong>every</strong> statement, making it a very
+useful tool for testing thoroughly bug report construction and output
+emission.</li>
+</ul>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="../developer-docs.html">3. Developer Docs</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="IPA.html">3.2. Inlining</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/IPA.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/IPA.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/IPA.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/IPA.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,425 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3.2. Inlining — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../../_static/jquery.js"></script>
+ <script type="text/javascript" src="../../_static/underscore.js"></script>
+ <script type="text/javascript" src="../../_static/doctools.js"></script>
+ <script type="text/javascript" src="../../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../../genindex.html" />
+ <link rel="search" title="Search" href="../../search.html" />
+ <link rel="next" title="3.3. Initializer List" href="InitializerLists.html" />
+ <link rel="prev" title="3.1. Debug Checks" href="DebugChecks.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3.2. Inlining</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="DebugChecks.html">3.1. Debug Checks</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="InitializerLists.html">3.3. Initializer List</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="inlining">
+<h1>3.2. Inlining<a class="headerlink" href="#inlining" title="Permalink to this headline">¶</a></h1>
+<p>There are several options that control which calls the analyzer will consider for
+inlining. The major one is <code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">ipa</span></code>:</p>
+<ul class="simple">
+<li><code class="docutils literal notranslate"><span class="pre">analyzer-config</span> <span class="pre">ipa=none</span></code> - All inlining is disabled. This is the only mode
+available in LLVM 3.1 and earlier and in Xcode 4.3 and earlier.</li>
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">analyzer-config</span> <span class="pre">ipa=basic-inlining</span></code> - Turns on inlining for C functions, C++</dt>
+<dd>static member functions, and blocks â essentially, the calls that behave
+like simple C function calls. This is essentially the mode used in
+Xcode 4.4.</dd>
+</dl>
+</li>
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">analyzer-config</span> <span class="pre">ipa=inlining</span></code> - Turns on inlining when we can confidently find</dt>
+<dd>the function/method body corresponding to the call. (C functions, static
+functions, devirtualized C++ methods, Objective-C class methods, Objective-C
+instance methods when ExprEngine is confident about the dynamic type of the
+instance).</dd>
+</dl>
+</li>
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">analyzer-config</span> <span class="pre">ipa=dynamic</span></code> - Inline instance methods for which the type is</dt>
+<dd>determined at runtime and we are not 100% sure that our type info is
+correct. For virtual calls, inline the most plausible definition.</dd>
+</dl>
+</li>
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">analyzer-config</span> <span class="pre">ipa=dynamic-bifurcate</span></code> - Same as -analyzer-config ipa=dynamic,</dt>
+<dd>but the path is split. We inline on one branch and do not inline on the
+other. This mode does not drop the coverage in cases when the parent class
+has code that is only exercised when some of its methods are overridden.</dd>
+</dl>
+</li>
+</ul>
+<p>Currently, <code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">ipa=dynamic-bifurcate</span></code> is the default mode.</p>
+<p>While <code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">ipa</span></code> determines in general how aggressively the analyzer
+will try to inline functions, several additional options control which types of
+functions can inlined, in an all-or-nothing way. These options use the
+analyzerâs configuration table, so they are all specified as follows:</p>
+<blockquote>
+<div><code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">OPTION=VALUE</span></code></div></blockquote>
+<div class="section" id="c-inlining">
+<h2>3.2.1. c++-inlining<a class="headerlink" href="#c-inlining" title="Permalink to this headline">¶</a></h2>
+<p>This option controls which C++ member functions may be inlined.</p>
+<blockquote>
+<div><code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">c++-inlining=[none</span> <span class="pre">|</span> <span class="pre">methods</span> <span class="pre">|</span> <span class="pre">constructors</span> <span class="pre">|</span> <span class="pre">destructors]</span></code></div></blockquote>
+<p>Each of these modes implies that all the previous member function kinds will be
+inlined as well; it doesnât make sense to inline destructors without inlining
+constructors, for example.</p>
+<p>The default c++-inlining mode is âdestructorsâ, meaning that all member
+functions with visible definitions will be considered for inlining. In some
+cases the analyzer may still choose not to inline the function.</p>
+<p>Note that under âconstructorsâ, constructors for types with non-trivial
+destructors will not be inlined. Additionally, no C++ member functions will be
+inlined under -analyzer-config ipa=none or -analyzer-config ipa=basic-inlining,
+regardless of the setting of the c++-inlining mode.</p>
+<div class="section" id="c-template-inlining">
+<h3>3.2.1.1. c++-template-inlining<a class="headerlink" href="#c-template-inlining" title="Permalink to this headline">¶</a></h3>
+<p>This option controls whether C++ templated functions may be inlined.</p>
+<blockquote>
+<div><code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">c++-template-inlining=[true</span> <span class="pre">|</span> <span class="pre">false]</span></code></div></blockquote>
+<p>Currently, template functions are considered for inlining by default.</p>
+<p>The motivation behind this option is that very generic code can be a source
+of false positives, either by considering paths that the caller considers
+impossible (by some unstated precondition), or by inlining some but not all
+of a deep implementation of a function.</p>
+</div>
+<div class="section" id="c-stdlib-inlining">
+<h3>3.2.1.2. c++-stdlib-inlining<a class="headerlink" href="#c-stdlib-inlining" title="Permalink to this headline">¶</a></h3>
+<p>This option controls whether functions from the C++ standard library, including
+methods of the container classes in the Standard Template Library, should be
+considered for inlining.</p>
+<blockquote>
+<div><code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">c++-stdlib-inlining=[true</span> <span class="pre">|</span> <span class="pre">false]</span></code></div></blockquote>
+<p>Currently, C++ standard library functions are considered for inlining by
+default.</p>
+<p>The standard library functions and the STL in particular are used ubiquitously
+enough that our tolerance for false positives is even lower here. A false
+positive due to poor modeling of the STL leads to a poor user experience, since
+most users would not be comfortable adding assertions to system headers in order
+to silence analyzer warnings.</p>
+</div>
+<div class="section" id="c-container-inlining">
+<h3>3.2.1.3. c++-container-inlining<a class="headerlink" href="#c-container-inlining" title="Permalink to this headline">¶</a></h3>
+<p>This option controls whether constructors and destructors of âcontainerâ types
+should be considered for inlining.</p>
+<blockquote>
+<div><code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">c++-container-inlining=[true</span> <span class="pre">|</span> <span class="pre">false]</span></code></div></blockquote>
+<p>Currently, these constructors and destructors are NOT considered for inlining
+by default.</p>
+<p>The current implementation of this setting checks whether a type has a member
+named âiteratorâ or a member named âbeginâ; these names are idiomatic in C++,
+with the latter specified in the C++11 standard. The analyzer currently does a
+fairly poor job of modeling certain data structure invariants of container-like
+objects. For example, these three expressions should be equivalent:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">std</span><span class="o">::</span><span class="n">distance</span><span class="p">(</span><span class="n">c</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span> <span class="n">c</span><span class="p">.</span><span class="n">end</span><span class="p">())</span> <span class="o">==</span> <span class="mi">0</span>
+<span class="n">c</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span> <span class="o">==</span> <span class="n">c</span><span class="p">.</span><span class="n">end</span><span class="p">()</span>
+<span class="n">c</span><span class="p">.</span><span class="n">empty</span><span class="p">()</span>
+</pre></div>
+</div>
+<p>Many of these issues are avoided if containers always have unknown, symbolic
+state, which is what happens when their constructors are treated as opaque.
+In the future, we may decide specific containers are âsafeâ to model through
+inlining, or choose to model them directly using checkers instead.</p>
+</div>
+</div>
+<div class="section" id="basics-of-implementation">
+<h2>3.2.2. Basics of Implementation<a class="headerlink" href="#basics-of-implementation" title="Permalink to this headline">¶</a></h2>
+<p>The low-level mechanism of inlining a function is handled in
+ExprEngine::inlineCall and ExprEngine::processCallExit.</p>
+<p>If the conditions are right for inlining, a CallEnter node is created and added
+to the analysis work list. The CallEnter node marks the change to a new
+LocationContext representing the called function, and its state includes the
+contents of the new stack frame. When the CallEnter node is actually processed,
+its single successor will be a edge to the first CFG block in the function.</p>
+<p>Exiting an inlined function is a bit more work, fortunately broken up into
+reasonable steps:</p>
+<ol class="arabic simple">
+<li>The CoreEngine realizes weâre at the end of an inlined call and generates a
+CallExitBegin node.</li>
+<li>ExprEngine takes over (in processCallExit) and finds the return value of the
+function, if it has one. This is bound to the expression that triggered the
+call. (In the case of calls without origin expressions, such as destructors,
+this step is skipped.)</li>
+<li>Dead symbols and bindings are cleaned out from the state, including any local
+bindings.</li>
+<li>A CallExitEnd node is generated, which marks the transition back to the
+callerâs LocationContext.</li>
+<li>Custom post-call checks are processed and the final nodes are pushed back
+onto the work list, so that evaluation of the caller can continue.</li>
+</ol>
+<div class="section" id="retry-without-inlining">
+<h3>3.2.2.1. Retry Without Inlining<a class="headerlink" href="#retry-without-inlining" title="Permalink to this headline">¶</a></h3>
+<p>In some cases, we would like to retry analysis without inlining a particular
+call.</p>
+<p>Currently, we use this technique to recover coverage in case we stop
+analyzing a path due to exceeding the maximum block count inside an inlined
+function.</p>
+<p>When this situation is detected, we walk up the path to find the first node
+before inlining was started and enqueue it on the WorkList with a special
+ReplayWithoutInlining bit added to it (ExprEngine::replayWithoutInlining). The
+path is then re-analyzed from that point without inlining that particular call.</p>
+</div>
+<div class="section" id="deciding-when-to-inline">
+<h3>3.2.2.2. Deciding When to Inline<a class="headerlink" href="#deciding-when-to-inline" title="Permalink to this headline">¶</a></h3>
+<p>In general, the analyzer attempts to inline as much as possible, since it
+provides a better summary of what actually happens in the program. There are
+some cases, however, where the analyzer chooses not to inline:</p>
+<ul>
+<li><p class="first">If there is no definition available for the called function or method. In
+this case, there is no opportunity to inline.</p>
+</li>
+<li><p class="first">If the CFG cannot be constructed for a called function, or the liveness
+cannot be computed. These are prerequisites for analyzing a function body,
+with or without inlining.</p>
+</li>
+<li><p class="first">If the LocationContext chain for a given ExplodedNode reaches a maximum cutoff
+depth. This prevents unbounded analysis due to infinite recursion, but also
+serves as a useful cutoff for performance reasons.</p>
+</li>
+<li><p class="first">If the function is variadic. This is not a hard limitation, but an engineering
+limitation.</p>
+<p>Tracked by: <<a class="reference external" href="rdar://problem/12147064">rdar://problem/12147064</a>> Support inlining of variadic functions</p>
+</li>
+<li><p class="first">In C++, constructors are not inlined unless the destructor call will be
+processed by the ExprEngine. Thus, if the CFG was built without nodes for
+implicit destructors, or if the destructors for the given object are not
+represented in the CFG, the constructor will not be inlined. (As an exception,
+constructors for objects with trivial constructors can still be inlined.)
+See âC++ Caveatsâ below.</p>
+</li>
+<li><p class="first">In C++, ExprEngine does not inline custom implementations of operator ânewâ
+or operator âdeleteâ, nor does it inline the constructors and destructors
+associated with these. See âC++ Caveatsâ below.</p>
+</li>
+<li><p class="first">Calls resulting in âdynamic dispatchâ are specially handled. See more below.</p>
+</li>
+<li><p class="first">The FunctionSummaries map stores additional information about declarations,
+some of which is collected at runtime based on previous analyses.
+We do not inline functions which were not profitable to inline in a different
+context (for example, if the maximum block count was exceeded; see
+âRetry Without Inliningâ).</p>
+</li>
+</ul>
+</div>
+<div class="section" id="dynamic-calls-and-devirtualization">
+<h3>3.2.2.3. Dynamic Calls and Devirtualization<a class="headerlink" href="#dynamic-calls-and-devirtualization" title="Permalink to this headline">¶</a></h3>
+<p>âDynamicâ calls are those that are resolved at runtime, such as C++ virtual
+method calls and Objective-C message sends. Due to the path-sensitive nature of
+the analysis, the analyzer may be able to reason about the dynamic type of the
+object whose method is being called and thus âdevirtualizeâ the call.</p>
+<p>This path-sensitive devirtualization occurs when the analyzer can determine what
+method would actually be called at runtime. This is possible when the type
+information is constrained enough for a simulated C++/Objective-C object that
+the analyzer can make such a decision.</p>
+</div>
+<div class="section" id="dynamictypeinfo">
+<h3>3.2.2.4. DynamicTypeInfo<a class="headerlink" href="#dynamictypeinfo" title="Permalink to this headline">¶</a></h3>
+<p>As the analyzer analyzes a path, it may accrue information to refine the
+knowledge about the type of an object. This can then be used to make better
+decisions about the target method of a call.</p>
+<p>Such type information is tracked as DynamicTypeInfo. This is path-sensitive
+data that is stored in ProgramState, which defines a mapping from MemRegions to
+an (optional) DynamicTypeInfo.</p>
+<p>If no DynamicTypeInfo has been explicitly set for a MemRegion, it will be lazily
+inferred from the regionâs type or associated symbol. Information from symbolic
+regions is weaker than from true typed regions.</p>
+<blockquote>
+<div><dl class="docutils">
+<dt>EXAMPLE: A C++ object declared âA objâ is known to have the class âAâ, but a</dt>
+<dd>reference âA &refâ may dynamically be a subclass of âAâ.</dd>
+</dl>
+</div></blockquote>
+<p>The DynamicTypePropagation checker gathers and propagates DynamicTypeInfo,
+updating it as information is observed along a path that can refine that type
+information for a region.</p>
+<blockquote>
+<div><dl class="docutils">
+<dt>WARNING: Not all of the existing analyzer code has been retrofitted to use</dt>
+<dd>DynamicTypeInfo, nor is it universally appropriate. In particular,
+DynamicTypeInfo always applies to a region with all casts stripped
+off, but sometimes the information provided by casts can be useful.</dd>
+</dl>
+</div></blockquote>
+</div>
+<div class="section" id="runtimedefinition">
+<h3>3.2.2.5. RuntimeDefinition<a class="headerlink" href="#runtimedefinition" title="Permalink to this headline">¶</a></h3>
+<p>The basis of devirtualization is CallEventâs getRuntimeDefinition() method,
+which returns a RuntimeDefinition object. When asked to provide a definition,
+the CallEvents for dynamic calls will use the DynamicTypeInfo in their
+ProgramState to attempt to devirtualize the call. In the case of no dynamic
+dispatch, or perfectly constrained devirtualization, the resulting
+RuntimeDefinition contains a Decl corresponding to the definition of the called
+function, and RuntimeDefinition::mayHaveOtherDefinitions will return FALSE.</p>
+<p>In the case of dynamic dispatch where our information is not perfect, CallEvent
+can make a guess, but RuntimeDefinition::mayHaveOtherDefinitions will return
+TRUE. The RuntimeDefinition object will then also include a MemRegion
+corresponding to the object being called (i.e., the âreceiverâ in Objective-C
+parlance), which ExprEngine uses to decide whether or not the call should be
+inlined.</p>
+</div>
+<div class="section" id="inlining-dynamic-calls">
+<h3>3.2.2.6. Inlining Dynamic Calls<a class="headerlink" href="#inlining-dynamic-calls" title="Permalink to this headline">¶</a></h3>
+<p>The -analyzer-config ipa option has five different modes: none, basic-inlining,
+inlining, dynamic, and dynamic-bifurcate. Under -analyzer-config ipa=dynamic,
+all dynamic calls are inlined, whether we are certain or not that this will
+actually be the definition used at runtime. Under -analyzer-config ipa=inlining,
+only ânear-perfectâ devirtualized calls are inlined*, and other dynamic calls
+are evaluated conservatively (as if no definition were available).</p>
+<ul class="simple">
+<li>Currently, no Objective-C messages are not inlined under
+-analyzer-config ipa=inlining, even if we are reasonably confident of the type
+of the receiver. We plan to enable this once we have tested our heuristics
+more thoroughly.</li>
+</ul>
+<p>The last option, -analyzer-config ipa=dynamic-bifurcate, behaves similarly to
+âdynamicâ, but performs a conservative invalidation in the general virtual case
+in <em>addition</em> to inlining. The details of this are discussed below.</p>
+<p>As stated above, -analyzer-config ipa=basic-inlining does not inline any C++
+member functions or Objective-C method calls, even if they are non-virtual or
+can be safely devirtualized.</p>
+</div>
+<div class="section" id="bifurcation">
+<h3>3.2.2.7. Bifurcation<a class="headerlink" href="#bifurcation" title="Permalink to this headline">¶</a></h3>
+<p>ExprEngine::BifurcateCall implements the <code class="docutils literal notranslate"><span class="pre">-analyzer-config</span> <span class="pre">ipa=dynamic-bifurcate</span></code>
+mode.</p>
+<p>When a call is made on an object with imprecise dynamic type information
+(RuntimeDefinition::mayHaveOtherDefinitions() evaluates to TRUE), ExprEngine
+bifurcates the path and marks the objectâs region (retrieved from the
+RuntimeDefinition object) with a path-sensitive âmodeâ in the ProgramState.</p>
+<p>Currently, there are 2 modes:</p>
+<ul class="simple">
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">DynamicDispatchModeInlined</span></code> - Models the case where the dynamic type information</dt>
+<dd>of the receiver (MemoryRegion) is assumed to be perfectly constrained so
+that a given definition of a method is expected to be the code actually
+called. When this mode is set, ExprEngine uses the Decl from
+RuntimeDefinition to inline any dynamically dispatched call sent to this
+receiver because the function definition is considered to be fully resolved.</dd>
+</dl>
+</li>
+<li><dl class="first docutils">
+<dt><code class="docutils literal notranslate"><span class="pre">DynamicDispatchModeConservative</span></code> - Models the case where the dynamic type</dt>
+<dd>information is assumed to be incorrect, for example, implies that the method
+definition is overridden in a subclass. In such cases, ExprEngine does not
+inline the methods sent to the receiver (MemoryRegion), even if a candidate
+definition is available. This mode is conservative about simulating the
+effects of a call.</dd>
+</dl>
+</li>
+</ul>
+<p>Going forward along the symbolic execution path, ExprEngine consults the mode
+of the receiverâs MemRegion to make decisions on whether the calls should be
+inlined or not, which ensures that there is at most one split per region.</p>
+<p>At a high level, âbifurcation modeâ allows for increased semantic coverage in
+cases where the parent method contains code which is only executed when the
+class is subclassed. The disadvantages of this mode are a (considerable?)
+performance hit and the possibility of false positives on the path where the
+conservative mode is used.</p>
+</div>
+<div class="section" id="objective-c-message-heuristics">
+<h3>3.2.2.8. Objective-C Message Heuristics<a class="headerlink" href="#objective-c-message-heuristics" title="Permalink to this headline">¶</a></h3>
+<p>ExprEngine relies on a set of heuristics to partition the set of Objective-C
+method calls into those that require bifurcation and those that do not. Below
+are the cases when the DynamicTypeInfo of the object is considered precise
+(cannot be a subclass):</p>
+<blockquote>
+<div><ul class="simple">
+<li>If the object was created with +alloc or +new and initialized with an -init
+method.</li>
+<li>If the calls are property accesses using dot syntax. This is based on the
+assumption that children rarely override properties, or do so in an
+essentially compatible way.</li>
+<li>If the class interface is declared inside the main source file. In this case
+it is unlikely that it will be subclassed.</li>
+<li>If the method is not declared outside of main source file, either by the
+receiverâs class or by any superclasses.</li>
+</ul>
+</div></blockquote>
+</div>
+<div class="section" id="c-caveats">
+<h3>3.2.2.9. C++ Caveats<a class="headerlink" href="#c-caveats" title="Permalink to this headline">¶</a></h3>
+<p>C++11 [class.cdtor]p4 describes how the vtable of an object is modified as it is
+being constructed or destructed; that is, the type of the object depends on
+which base constructors have been completed. This is tracked using
+DynamicTypeInfo in the DynamicTypePropagation checker.</p>
+<p>There are several limitations in the current implementation:</p>
+<ul class="simple">
+<li>Temporaries are poorly modeled right now because weâre not confident in the
+placement of their destructors in the CFG. We currently wonât inline their
+constructors unless the destructor is trivial, and donât process their
+destructors at all, not even to invalidate the region.</li>
+<li>ânewâ is poorly modeled due to some nasty CFG/design issues. This is tracked
+in PR12014. âdeleteâ is not modeled at all.</li>
+<li>Arrays of objects are modeled very poorly right now. ExprEngine currently
+only simulates the first constructor and first destructor. Because of this,
+ExprEngine does not inline any constructors or destructors for arrays.</li>
+</ul>
+</div>
+<div class="section" id="callevent">
+<h3>3.2.2.10. CallEvent<a class="headerlink" href="#callevent" title="Permalink to this headline">¶</a></h3>
+<p>A CallEvent represents a specific call to a function, method, or other body of
+code. It is path-sensitive, containing both the current state (ProgramStateRef)
+and stack space (LocationContext), and provides uniform access to the argument
+values and return type of a call, no matter how the call is written in the
+source or what sort of code body is being invoked.</p>
+<blockquote>
+<div><dl class="docutils">
+<dt>NOTE: For those familiar with Cocoa, CallEvent is roughly equivalent to</dt>
+<dd>NSInvocation.</dd>
+</dl>
+</div></blockquote>
+<p>CallEvent should be used whenever there is logic dealing with function calls
+that does not care how the call occurred.</p>
+<p>Examples include checking that arguments satisfy preconditions (such as
+__attribute__((nonnull))), and attempting to inline a call.</p>
+<p>CallEvents are reference-counted objects managed by a CallEventManager. While
+there is no inherent issue with persisting them (say, in a ProgramStateâs GDM),
+they are intended for short-lived use, and can be recreated from CFGElements or
+non-top-level StackFrameContexts fairly easily.</p>
+</div>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="DebugChecks.html">3.1. Debug Checks</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="InitializerLists.html">3.3. Initializer List</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/InitializerLists.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/InitializerLists.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/InitializerLists.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/InitializerLists.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,335 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3.3. Initializer List — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../../_static/jquery.js"></script>
+ <script type="text/javascript" src="../../_static/underscore.js"></script>
+ <script type="text/javascript" src="../../_static/doctools.js"></script>
+ <script type="text/javascript" src="../../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../../genindex.html" />
+ <link rel="search" title="Search" href="../../search.html" />
+ <link rel="next" title="3.4. Nullability Checks" href="nullability.html" />
+ <link rel="prev" title="3.2. Inlining" href="IPA.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3.3. Initializer List</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="IPA.html">3.2. Inlining</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="nullability.html">3.4. Nullability Checks</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="initializer-list">
+<h1>3.3. Initializer List<a class="headerlink" href="#initializer-list" title="Permalink to this headline">¶</a></h1>
+<p>This discussion took place in <a class="reference external" href="https://reviews.llvm.org/D35216">https://reviews.llvm.org/D35216</a>
+âEscape symbols when creating std::initializer_listâ.</p>
+<p>It touches problems of modelling C++ standard library constructs in general,
+including modelling implementation-defined fields within C++ standard library
+objects, in particular constructing objects into pointers held by such fields,
+and separation of responsibilities between analyzerâs core and checkers.</p>
+<p><strong>Artem:</strong></p>
+<p>Iâve seen a few false positives that appear because we construct
+C++11 std::initializer_list objects with brace initializers, and such
+construction is not properly modeled. For instance, if a new object is
+constructed on the heap only to be put into a brace-initialized STL container,
+the object is reported to be leaked.</p>
+<p>Approach (0): This can be trivially fixed by this patch, which causes pointers
+passed into initializer list expressions to immediately escape.</p>
+<p>This fix is overly conservative though. So i did a bit of investigation as to
+how model std::initializer_list better.</p>
+<p>According to the standard, <code class="docutils literal notranslate"><span class="pre">std::initializer_list<T></span></code> is an object that has
+methods <code class="docutils literal notranslate"><span class="pre">begin(),</span> <span class="pre">end(),</span> <span class="pre">and</span> <span class="pre">size()</span></code>, where <code class="docutils literal notranslate"><span class="pre">begin()</span></code> returns a pointer to continuous
+array of <code class="docutils literal notranslate"><span class="pre">size()</span></code> objects of type T, and end() is equal to begin() plus size().
+The standard does hint that it should be possible to implement
+<code class="docutils literal notranslate"><span class="pre">std::initializer_list<T></span></code> as a pair of pointers, or as a pointer and a size
+integer, however specific fields that the object would contain are an
+implementation detail.</p>
+<p>Ideally, we should be able to model the initializer listâs methods precisely.
+Or, at least, it should be possible to explain to the analyzer that the list
+somehow âtakes holdâ of the values put into it. Initializer lists can also be
+copied, which is a separate story that iâm not trying to address here.</p>
+<p>The obvious approach to modeling <code class="docutils literal notranslate"><span class="pre">std::initializer_list</span></code> in a checker would be to
+construct a SymbolMetadata for the memory region of the initializer list object,
+which would be of type <code class="docutils literal notranslate"><span class="pre">T*</span></code> and represent <code class="docutils literal notranslate"><span class="pre">begin()</span></code>, so weâd trivially model <code class="docutils literal notranslate"><span class="pre">begin()</span></code>
+as a function that returns this symbol. The array pointed to by that symbol
+would be <code class="docutils literal notranslate"><span class="pre">bindLoc()``ed</span> <span class="pre">to</span> <span class="pre">contain</span> <span class="pre">the</span> <span class="pre">list's</span> <span class="pre">contents</span> <span class="pre">(probably</span> <span class="pre">as</span> <span class="pre">a</span> <span class="pre">``CompoundVal</span></code>
+to produce less bindings in the store). Extent of this array would represent
+<code class="docutils literal notranslate"><span class="pre">size()</span></code> and would be equal to the length of the list as written.</p>
+<p>So this sounds good, however apparently it does nothing to address our false
+positives: when the list escapes, our <code class="docutils literal notranslate"><span class="pre">RegionStoreManager</span></code> is not magically
+guessing that the metadata symbol attached to it, together with its contents,
+should also escape. In fact, itâs impossible to trigger a pointer escape from
+within the checker.</p>
+<p>Approach (1): If only we enabled <code class="docutils literal notranslate"><span class="pre">ProgramState::bindLoc(...,</span> <span class="pre">notifyChanges=true)</span></code>
+to cause pointer escapes (not only region changes) (which sounds like the right
+thing to do anyway) such checker would be able to solve the false positives by
+triggering escapes when binding list elements to the list. However, itâd be as
+conservative as the current patchâs solution. Ideally, we do not want escapes to
+happen so early. Instead, weâd prefer them to be delayed until the list itself
+escapes.</p>
+<p>So i believe that escaping metadata symbols whenever their base regions escape
+would be the right thing to do. Currently we didnât think about that because we
+had neither pointer-type metadatas nor non-pointer escapes.</p>
+<p>Approach (2): We could teach the Store to scan itself for bindings to
+metadata-symbolic-based regions during scanReachableSymbols() whenever a region
+turns out to be reachable. This requires no work on checker side, but it sounds
+performance-heavy.</p>
+<p>Approach (3): We could let checkers maintain the set of active metadata symbols
+in the program state (ideally somewhere in the Store, which sounds weird but
+causes the smallest amount of layering violations), so that the core knew what
+to escape. This puts a stress on the checkers, but with a smart data map it
+wouldnât be a problem.</p>
+<p>Approach (4): We could allow checkers to trigger pointer escapes in arbitrary
+moments. If we allow doing this within <code class="docutils literal notranslate"><span class="pre">checkPointerEscape</span></code> callback itself, we
+would be able to express facts like âwhen this region escapes, that metadata
+symbol attached to it should also escapeâ. This sounds like an ultimate freedom,
+with maximum stress on the checkers - still not too much stress when we have
+smart data maps.</p>
+<p>Iâm personally liking the approach (2) - it should be possible to avoid
+performance overhead, and clarity seems nice.</p>
+<p><strong>Gabor:</strong></p>
+<p>At this point, I am a bit wondering about two questions.</p>
+<ul class="simple">
+<li>When should something belong to a checker and when should something belong to the engine?
+Sometimes we model library aspects in the engine and model language constructs in checkers.</li>
+<li>What is the checker programming model that we are aiming for? Maximum freedom or more easy checker development?</li>
+</ul>
+<p>I think if we aim for maximum freedom, we do not need to worry about the
+potential stress on checkers, and we can introduce abstractions to mitigate that
+later on.
+If we want to simplify the API, then maybe it makes more sense to move language
+construct modeling to the engine when the checker API is not sufficient instead
+of complicating the API.</p>
+<p>Right now I have no preference or objections between the alternatives but there
+are some random thoughts:</p>
+<ul class="simple">
+<li>Maybe it would be great to have a guideline how to evolve the analyzer and
+follow it, so it can help us to decide in similar situations</li>
+<li>I do care about performance in this case. The reason is that we have a
+limited performance budget. And I think we should not expect most of the checker
+writers to add modeling of language constructs. So, in my opinion, it is ok to
+have less nice/more verbose API for language modeling if we can have better
+performance this way, since it only needs to be done once, and is done by the
+framework developers.</li>
+</ul>
+<p><strong>Artem:</strong> These are some great questions, i guess itâd be better to discuss
+them more openly. As a quick dump of my current mood:</p>
+<ul class="simple">
+<li>To me it seems obvious that we need to aim for a checker API that is both
+simple and powerful. This can probably by keeping the API as powerful as
+necessary while providing a layer of simple ready-made solutions on top of it.
+Probably a few reusable components for assembling checkers. And this layer
+should ideally be pleasant enough to work with, so that people would prefer to
+extend it when something is lacking, instead of falling back to the complex
+omnipotent API. Iâm thinking of AST matchers vs. AST visitors as a roughly
+similar situation: matchers are not omnipotent, but theyâre so nice.</li>
+<li>Separation between core and checkers is usually quite strange. Once we have
+shared state traits, i generally wouldnât mind having region store or range
+constraint manager as checkers (though itâs probably not worth it to transform
+them - just a mood). The main thing to avoid here would be the situation when
+the checker overwrites stuff written by the core because it thinks it has a
+better idea whatâs going on, so the core should provide a good default behavior.</li>
+<li>Yeah, i totally care about performance as well, and if i try to implement
+approach, iâd make sure itâs good.</li>
+</ul>
+<p><strong>Artem:</strong></p>
+<p>> Approach (2): We could teach the Store to scan itself for bindings to
+> metadata-symbolic-based regions during scanReachableSymbols() whenever
+> a region turns out to be reachable. This requires no work on checker side,
+> but it sounds performance-heavy.</p>
+<p>Nope, this approach is wrong. Metadata symbols may become out-of-date: when the
+object changes, metadata symbols attached to it arenât changing (because symbols
+simply donât change). The same metadata may have different symbols to denote its
+value in different moments of time, but at most one of them represents the
+actual metadata value. So weâd be escaping more stuff than necessary.</p>
+<p>If only we had âghost fieldsâ
+(<a class="reference external" href="https://lists.llvm.org/pipermail/cfe-dev/2016-May/049000.html">https://lists.llvm.org/pipermail/cfe-dev/2016-May/049000.html</a>), it would have
+been much easier, because the ghost field would only contain the actual
+metadata, and the Store would always know about it. This example adds to my
+belief that ghost fields are exactly what we need for most C++ checkers.</p>
+<p><strong>Devin:</strong></p>
+<p>In this case, I would be fine with some sort of
+AbstractStorageMemoryRegion that meant âhere is a memory region and somewhere
+reachable from here exists another region of type Tâ. Or even multiple regions
+with different identifiers. This wouldnât specify how the memory is reachable,
+but it would allow for transfer functions to get at those regions and it would
+allow for invalidation.</p>
+<p>For <code class="docutils literal notranslate"><span class="pre">std::initializer_list</span></code> this reachable region would the region for the backing
+array and the transfer functions for begin() and end() yield the beginning and
+end element regions for it.</p>
+<p>In my view this differs from ghost variables in that (1) this storage does
+actually exist (it is just a library implementation detail where that storage
+lives) and (2) it is perfectly valid for a pointer into that storage to be
+returned and for another part of the program to read or write from that storage.
+(Well, in this case just read since it is allowed to be read-only memory).</p>
+<p>What Iâm not OK with is modeling abstract analysis state (for example, the count
+of a NSMutableArray or the typestate of a file handle) as a value stored in some
+ginned up region in the store. This takes an easy problem that the analyzer does
+well at (modeling typestate) and turns it into a hard one that the analyzer is
+bad at (reasoning about the contents of the heap).</p>
+<p>I think the key criterion here is: âis the region accessible from outside the
+libraryâ. That is, does the library expose the region as a pointer that can be
+read to or written from in the client program? If so, then it makes sense for
+this to be in the store: we are modeling reachable storage as storage. But if
+weâre just modeling arbitrary analysis facts that need to be invalidated when a
+pointer escapes then we shouldnât try to gin up storage for them just to get
+invalidation for free.</p>
+<p><strong>Artem:</strong></p>
+<p>> In this case, I would be fine with some sort of <code class="docutils literal notranslate"><span class="pre">AbstractStorageMemoryRegion</span></code>
+> that meant âhere is a memory region and somewhere reachable from here exists
+> another region of type Tâ. Or even multiple regions with different
+> identifiers. This wouldnât specify how the memory is reachable, but it would
+> allow for transfer functions to get at those regions and it would allow for
+> invalidation.</p>
+<p>Yeah, this is what we can easily implement now as a
+symbolic-region-based-on-a-metadata-symbol (though we can make a new region
+class for that if we eg. want it typed). The problem is that the relation
+between such storage region and its parent object region is essentially
+immaterial, similarly to the relation between <code class="docutils literal notranslate"><span class="pre">SymbolRegionValue</span></code> and its parent
+region. Region contents are mutable: today the abstract storage is reachable
+from its parent object, tomorrow itâs not, and maybe something else becomes
+reachable, something that isnât even abstract. So the parent region for the
+abstract storage is most of the time at best a ânice to knowâ thing - we cannot
+rely on it to do any actual work. Weâd anyway need to rely on the checker to do
+the job.</p>
+<p>> For std::initializer_list this reachable region would the region for the
+> backing array and the transfer functions for begin() and end() yield the
+> beginning and end element regions for it.</p>
+<p>So maybe in fact for std::initializer_list it may work fine because you cannot
+change the data after the object is constructed - so this regionâs contents are
+essentially immutable. For the future, i feel as if it is a dead end.</p>
+<p>Iâd like to consider another funny example. Suppose weâre trying to model</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="p">.</span> <span class="n">Consider</span><span class="o">::</span>
+
+ <span class="kt">void</span> <span class="n">bar</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="kt">int</span><span class="o">></span> <span class="o">&</span><span class="n">x</span><span class="p">);</span>
+
+ <span class="kt">void</span> <span class="nf">foo</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">unique_ptr</span><span class="o"><</span><span class="kt">int</span><span class="o">></span> <span class="o">&</span><span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">a</span> <span class="o">=</span> <span class="n">x</span><span class="p">.</span><span class="n">get</span><span class="p">();</span> <span class="c1">// (a, 0, direct): &AbstractStorageRegion</span>
+ <span class="o">*</span><span class="n">a</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="c1">// (AbstractStorageRegion, 0, direct): 1 S32b</span>
+ <span class="kt">int</span> <span class="o">*</span><span class="n">b</span> <span class="o">=</span> <span class="k">new</span> <span class="kt">int</span><span class="p">;</span>
+ <span class="o">*</span><span class="n">b</span> <span class="o">=</span> <span class="mi">2</span><span class="p">;</span> <span class="c1">// (SymRegion{conj_$0<int *>}, 0 ,direct): 2 S32b</span>
+ <span class="n">x</span><span class="p">.</span><span class="n">reset</span><span class="p">(</span><span class="n">b</span><span class="p">);</span> <span class="c1">// Checker map: x -> SymRegion{conj_$0<int *>}</span>
+ <span class="n">bar</span><span class="p">(</span><span class="n">x</span><span class="p">);</span> <span class="c1">// 'a' doesn't escape (the pointer was unique), 'b' does.</span>
+ <span class="n">clang_analyzer_eval</span><span class="p">(</span><span class="o">*</span><span class="n">a</span> <span class="o">==</span> <span class="mi">1</span><span class="p">);</span> <span class="c1">// Making this true is up to the checker.</span>
+ <span class="n">clang_analyzer_eval</span><span class="p">(</span><span class="o">*</span><span class="n">b</span> <span class="o">==</span> <span class="mi">2</span><span class="p">);</span> <span class="c1">// Making this unknown is up to the checker.</span>
+ <span class="p">}</span>
+</pre></div>
+</div>
+<p>The checker doesnât totally need to ensure that <code class="docutils literal notranslate"><span class="pre">*a</span> <span class="pre">==</span> <span class="pre">1</span></code> passes - even though the
+pointer was unique, it could theoretically have <code class="docutils literal notranslate"><span class="pre">.get()</span></code>-ed above and the code
+could of course break the uniqueness invariant (though weâd probably want it).
+The checker can say that âeven if <code class="docutils literal notranslate"><span class="pre">*a</span></code> did escape, it was not because it was
+stuffed directly into bar()â.</p>
+<p>The checkerâs direct responsibility, however, is to solve the <code class="docutils literal notranslate"><span class="pre">*b</span> <span class="pre">==</span> <span class="pre">2</span></code> thing
+(which is in fact the problem weâre dealing with in this patch - escaping the
+storage region of the object).</p>
+<p>So weâre talking about one more operation over the program state (scanning
+reachable symbols and regions) that cannot work without checker support.</p>
+<p>We can probably add a new callback âcheckReachableSymbolsâ to solve this. This
+is in fact also related to the dead symbols problem (weâre scanning for live
+symbols in the store and in the checkers separately, but we need to do so
+simultaneously with a single worklist). Hmm, in fact this sounds like a good
+idea; we can replace checkLiveSymbols with checkReachableSymbols.</p>
+<p>Or we could just have ghost member variables, and no checker support required at
+all. For ghost member variables, the relation with their parent region (which
+would be their superregion) is actually useful, the mutability of their contents
+is expressed naturally, and the store automagically sees reachable symbols, live
+symbols, escapes, invalidations, whatever.</p>
+<p>> In my view this differs from ghost variables in that (1) this storage does
+> actually exist (it is just a library implementation detail where that storage
+> lives) and (2) it is perfectly valid for a pointer into that storage to be
+> returned and for another part of the program to read or write from that
+> storage. (Well, in this case just read since it is allowed to be read-only
+> memory).</p>
+<p>> What Iâm not OK with is modeling abstract analysis state (for example, the
+> count of a NSMutableArray or the typestate of a file handle) as a value stored
+> in some ginned up region in the store.This takes an easy problem that the
+> analyzer does well at (modeling typestate) and turns it into a hard one that
+> the analyzer is bad at (reasoning about the contents of the heap).</p>
+<p>Yeah, i tend to agree on that. For simple typestates, this is probably an
+overkill, so letâs definitely put aside the idea of âghost symbolic regionsâ
+that i had earlier.</p>
+<p>But, to summarize a bit, in our current case, however, the typestate weâre
+looking for is the contents of the heap. And when we try to model such
+typestates (complex in this specific manner, i.e. heap-like) in any checker, we
+have a choice between re-doing this modeling in every such checker (which is
+something analyzer is indeed good at, but at a price of making checkers heavy)
+or instead relying on the Store to do exactly what itâs designed to do.</p>
+<p>> I think the key criterion here is: âis the region accessible from outside
+> the libraryâ. That is, does the library expose the region as a pointer that
+> can be read to or written from in the client program? If so, then it makes
+> sense for this to be in the store: we are modeling reachable storage as
+> storage. But if weâre just modeling arbitrary analysis facts that need to be
+> invalidated when a pointer escapes then we shouldnât try to gin up storage
+> for them just to get invalidation for free.</p>
+<p>As a metaphor, iâd probably compare it to body farms - the difference between
+ghost member variables and metadata symbols seems to me like the difference
+between body farms and evalCall. Both are nice to have, and body farms are very
+pleasant to work with, even if not omnipotent. I think itâs fine for a
+FunctionDeclâs body in a body farm to have a local variable, even if such
+variable doesnât actually exist, even if it cannot be seen from outside the
+function call. Iâm not seeing immediate practical difference between âit does
+actually existâ and âit doesnât actually exist, just a handy abstractionâ.
+Similarly, i think itâs fine if we have a <code class="docutils literal notranslate"><span class="pre">CXXRecordDecl</span></code> with
+implementation-defined contents, and try to farm up a member variable as a handy
+abstraction (we donât even need to know its name or offset, only that itâs there
+somewhere).</p>
+<p><strong>Artem:</strong></p>
+<p>Weâve discussed it in person with Devin, and he provided more points to think
+about:</p>
+<ul class="simple">
+<li>If the initializer list consists of non-POD data, constructors of listâs
+objects need to take the sub-region of the listâs region as this-region In the
+current (v2) version of this patch, these objects are constructed elsewhere and
+then trivial-copied into the listâs metadata pointer region, which may be
+incorrect. This is our overall problem with C++ constructors, which manifests in
+this case as well. Additionally, objects would need to be constructed in the
+analyzerâs core, which would not be able to predict that it needs to take a
+checker-specific region as this-region, which makes it harder, though it might
+be mitigated by sharing the checker state traits.</li>
+<li>Because âghost variablesâ are not material to the user, we need to somehow
+make super sure that they donât make it into the diagnostic messages.</li>
+</ul>
+<p>So, because this needs further digging into overall C++ support and rises too
+many questions, iâm delaying a better approach to this problem and will fall
+back to the original trivial patch.</p>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="IPA.html">3.2. Inlining</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="nullability.html">3.4. Nullability Checks</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/RegionStore.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/RegionStore.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/RegionStore.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/RegionStore.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,214 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3.5. Region Store — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../../_static/jquery.js"></script>
+ <script type="text/javascript" src="../../_static/underscore.js"></script>
+ <script type="text/javascript" src="../../_static/doctools.js"></script>
+ <script type="text/javascript" src="../../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../../genindex.html" />
+ <link rel="search" title="Search" href="../../search.html" />
+ <link rel="next" title="Thread Safety Analysis" href="../../ThreadSafetyAnalysis.html" />
+ <link rel="prev" title="3.4. Nullability Checks" href="nullability.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3.5. Region Store</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="nullability.html">3.4. Nullability Checks</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="../../ThreadSafetyAnalysis.html">Thread Safety Analysis</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="region-store">
+<h1>3.5. Region Store<a class="headerlink" href="#region-store" title="Permalink to this headline">¶</a></h1>
+<p>The analyzer âStoreâ represents the contents of memory regions. It is an opaque
+functional data structure stored in each <code class="docutils literal notranslate"><span class="pre">ProgramState</span></code>; the only class that
+can modify the store is its associated StoreManager.</p>
+<p>Currently (Feb. 2013), the only StoreManager implementation being used is
+<code class="docutils literal notranslate"><span class="pre">RegionStoreManager</span></code>. This store records bindings to memory regions using a
+âbase region + offsetâ key. (This allows <code class="docutils literal notranslate"><span class="pre">*p</span></code> and <code class="docutils literal notranslate"><span class="pre">p[0]</span></code> to map to the same
+location, among other benefits.)</p>
+<p>Regions are grouped into âclustersâ, which roughly correspond to âregions with
+the same base regionâ. This allows certain operations to be more efficient,
+such as invalidation.</p>
+<p>Regions that do not have a known offset use a special âsymbolicâ offset. These
+keys store both the original region, and the âconcrete offset regionâ â the
+last region whose offset is entirely concrete. (For example, in the expression
+<code class="docutils literal notranslate"><span class="pre">foo.bar[1][i].baz</span></code>, the concrete offset region is the array <code class="docutils literal notranslate"><span class="pre">foo.bar[1]</span></code>,
+since that has a known offset from the start of the top-level <code class="docutils literal notranslate"><span class="pre">foo</span></code> struct.)</p>
+<div class="section" id="binding-invalidation">
+<h2>3.5.1. Binding Invalidation<a class="headerlink" href="#binding-invalidation" title="Permalink to this headline">¶</a></h2>
+<p>Supporting both concrete and symbolic offsets makes things a bit tricky. Hereâs
+an example:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">foo</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="n">foo</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+<span class="n">foo</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">i</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>After the third assignment, nothing can be said about the value of <code class="docutils literal notranslate"><span class="pre">foo[0]</span></code>,
+because <code class="docutils literal notranslate"><span class="pre">foo[i]</span></code> may have overwritten it! Thus, <em>binding to a region with a
+symbolic offset invalidates the entire concrete offset region.</em> We know
+<code class="docutils literal notranslate"><span class="pre">foo[i]</span></code> is somewhere within <code class="docutils literal notranslate"><span class="pre">foo</span></code>, so we donât have to invalidate
+anything else, but we do have to be conservative about all other bindings within
+<code class="docutils literal notranslate"><span class="pre">foo</span></code>.</p>
+<p>Continuing the example:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">foo</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">i</span><span class="p">;</span>
+<span class="n">foo</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+</pre></div>
+</div>
+<p>After this latest assignment, nothing can be said about the value of <code class="docutils literal notranslate"><span class="pre">foo[i]</span></code>,
+because <code class="docutils literal notranslate"><span class="pre">foo[0]</span></code> may have overwritten it! <em>Binding to a region R with a
+concrete offset invalidates any symbolic offset bindings whose concrete offset
+region is a super-region **or*</em> sub-region of R.* All we know about <code class="docutils literal notranslate"><span class="pre">foo[i]</span></code>
+is that it is somewhere within <code class="docutils literal notranslate"><span class="pre">foo</span></code>, so changing <em>anything</em> within <code class="docutils literal notranslate"><span class="pre">foo</span></code>
+might change <code class="docutils literal notranslate"><span class="pre">foo[i]</span></code>, and changing <em>all</em> of <code class="docutils literal notranslate"><span class="pre">foo</span></code> (or its base region) will
+<em>definitely</em> change <code class="docutils literal notranslate"><span class="pre">foo[i]</span></code>.</p>
+<p>This logic could be improved by using the current constraints on <code class="docutils literal notranslate"><span class="pre">i</span></code>, at the
+cost of speed. The latter case could also be improved by matching region kinds,
+i.e. changing <code class="docutils literal notranslate"><span class="pre">foo[0].a</span></code> is unlikely to affect <code class="docutils literal notranslate"><span class="pre">foo[i].b</span></code>, no matter what
+<code class="docutils literal notranslate"><span class="pre">i</span></code> is.</p>
+<p>For more detail, read through <code class="docutils literal notranslate"><span class="pre">RegionStoreManager::removeSubRegionBindings</span></code> in
+RegionStore.cpp.</p>
+</div>
+<div class="section" id="objcivarregions">
+<h2>3.5.2. ObjCIvarRegions<a class="headerlink" href="#objcivarregions" title="Permalink to this headline">¶</a></h2>
+<p>Objective-C instance variables require a bit of special handling. Like struct
+fields, they are not base regions, and when their parent object region is
+invalidated, all the instance variables must be invalidated as well. However,
+they have no concrete compile-time offsets (in the modern, ânon-fragileâ
+runtime), and so cannot easily be represented as an offset from the start of
+the object in the analyzer. Moreover, this means that invalidating a single
+instance variable should <em>not</em> invalidate the rest of the object, since unlike
+struct fields or array elements there is no way to perform pointer arithmetic
+to access another instance variable.</p>
+<p>Consequently, although the base region of an ObjCIvarRegion is the entire
+object, RegionStore offsets are computed from the start of the instance
+variable. Thus it is not valid to assume that all bindings with non-symbolic
+offsets start from the base region!</p>
+</div>
+<div class="section" id="region-invalidation">
+<h2>3.5.3. Region Invalidation<a class="headerlink" href="#region-invalidation" title="Permalink to this headline">¶</a></h2>
+<p>Unlike binding invalidation, region invalidation occurs when the entire
+contents of a region may have changedâsay, because it has been passed to a
+function the analyzer can model, like memcpy, or because its address has
+escaped, usually as an argument to an opaque function call. In these cases we
+need to throw away not just all bindings within the region itself, but within
+its entire cluster, since neighboring regions may be accessed via pointer
+arithmetic.</p>
+<p>Region invalidation typically does even more than this, however. Because it
+usually represents the complete escape of a region from the analyzerâs model,
+its <em>contents</em> must also be transitively invalidated. (For example, if a region
+<code class="docutils literal notranslate"><span class="pre">p</span></code> of type <code class="docutils literal notranslate"><span class="pre">int</span> <span class="pre">**</span></code> is invalidated, the contents of <code class="docutils literal notranslate"><span class="pre">*p</span></code> and <code class="docutils literal notranslate"><span class="pre">**p</span></code> may
+have changed as well.) The algorithm that traverses this transitive closure of
+accessible regions is known as ClusterAnalysis, and is also used for finding
+all live bindings in the store (in order to throw away the dead ones). The name
+âClusterAnalysisâ predates the cluster-based organization of bindings, but
+refers to the same concept: during invalidation and liveness analysis, all
+bindings within a cluster must be treated in the same way for a conservative
+model of program behavior.</p>
+</div>
+<div class="section" id="default-bindings">
+<h2>3.5.4. Default Bindings<a class="headerlink" href="#default-bindings" title="Permalink to this headline">¶</a></h2>
+<p>Most bindings in RegionStore are simple scalar values â integers and pointers.
+These are known as âDirectâ bindings. However, RegionStore supports a second
+type of binding called a âDefaultâ binding. These are used to provide values to
+all the elements of an aggregate type (struct or array) without having to
+explicitly specify a binding for each individual element.</p>
+<p>When there is no Direct binding for a particular region, the store manager
+looks at each super-region in turn to see if there is a Default binding. If so,
+this value is used as the value of the original region. The search ends when
+the base region is reached, at which point the RegionStore will pick an
+appropriate default value for the region (usually a symbolic value, but
+sometimes zero, for static data, or âuninitializedâ, for stack variables).</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="n">manyInts</span><span class="p">[</span><span class="mi">10</span><span class="p">];</span>
+<span class="n">manyInts</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">42</span><span class="p">;</span> <span class="c1">// Creates a Direct binding for manyInts[1].</span>
+<span class="n">print</span><span class="p">(</span><span class="n">manyInts</span><span class="p">[</span><span class="mi">1</span><span class="p">]);</span> <span class="c1">// Retrieves the Direct binding for manyInts[1];</span>
+<span class="n">print</span><span class="p">(</span><span class="n">manyInts</span><span class="p">[</span><span class="mi">0</span><span class="p">]);</span> <span class="c1">// There is no Direct binding for manyInts[0].</span>
+ <span class="c1">// Is there a Default binding for the entire array?</span>
+ <span class="c1">// There is not, but it is a stack variable, so we use</span>
+ <span class="c1">// "uninitialized" as the default value (and emit a</span>
+ <span class="c1">// diagnostic!).</span>
+</pre></div>
+</div>
+<p>NOTE: The fact that bindings are stored as a base region plus an offset limits
+the Default Binding strategy, because in C aggregates can contain other
+aggregates. In the current implementation of RegionStore, there is no way to
+distinguish a Default binding for an entire aggregate from a Default binding
+for the sub-aggregate at offset 0.</p>
+</div>
+<div class="section" id="lazy-bindings-lazycompoundval">
+<h2>3.5.5. Lazy Bindings (LazyCompoundVal)<a class="headerlink" href="#lazy-bindings-lazycompoundval" title="Permalink to this headline">¶</a></h2>
+<p>RegionStore implements an optimization for copying aggregates (structs and
+arrays) called âlazy bindingsâ, implemented using a special SVal called
+LazyCompoundVal. When the store is asked for the âbindingâ for an entire
+aggregate (i.e. for an lvalue-to-rvalue conversion), it returns a
+LazyCompoundVal instead. When this value is then stored into a variable, it is
+bound as a Default value. This makes copying arrays and structs much cheaper
+than if they had required memberwise access.</p>
+<p>Under the hood, a LazyCompoundVal is implemented as a uniqued pair of (region,
+store), representing âthe value of the region during this âsnapshotâ of the
+storeâ. This has important implications for any sort of liveness or
+reachability analysis, which must take the bindings in the old store into
+account.</p>
+<p>Retrieving a value from a lazy binding happens in the same way as any other
+Default binding: since there is no direct binding, the store manager falls back
+to super-regions to look for an appropriate default binding. LazyCompoundVal
+differs from a normal default binding, however, in that it contains several
+different values, instead of one value that will appear several times. Because
+of this, the store manager has to reconstruct the subregion chain on top of the
+LazyCompoundVal region, and look up <em>that</em> region in the previous store.</p>
+<p>Hereâs a concrete example:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">CGPoint</span> <span class="n">p</span><span class="p">;</span>
+<span class="n">p</span><span class="p">.</span><span class="n">x</span> <span class="o">=</span> <span class="mi">42</span><span class="p">;</span> <span class="c1">// A Direct binding is made to the FieldRegion 'p.x'.</span>
+<span class="n">CGPoint</span> <span class="n">p2</span> <span class="o">=</span> <span class="n">p</span><span class="p">;</span> <span class="c1">// A LazyCompoundVal is created for 'p', along with a</span>
+ <span class="c1">// snapshot of the current store state. This value is then</span>
+ <span class="c1">// used as a Default binding for the VarRegion 'p2'.</span>
+<span class="k">return</span> <span class="n">p2</span><span class="p">.</span><span class="n">x</span><span class="p">;</span> <span class="c1">// The binding for FieldRegion 'p2.x' is requested.</span>
+ <span class="c1">// There is no Direct binding, so we look for a Default</span>
+ <span class="c1">// binding to 'p2' and find the LCV.</span>
+ <span class="c1">// Because it's a LCV, we look at our requested region</span>
+ <span class="c1">// and see that it's the '.x' field. We ask for the value</span>
+ <span class="c1">// of 'p.x' within the snapshot, and get back 42.</span>
+</pre></div>
+</div>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="nullability.html">3.4. Nullability Checks</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="../../ThreadSafetyAnalysis.html">Thread Safety Analysis</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/nullability.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/nullability.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/nullability.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/developer-docs/nullability.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,163 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>3.4. Nullability Checks — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../../_static/jquery.js"></script>
+ <script type="text/javascript" src="../../_static/underscore.js"></script>
+ <script type="text/javascript" src="../../_static/doctools.js"></script>
+ <script type="text/javascript" src="../../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../../genindex.html" />
+ <link rel="search" title="Search" href="../../search.html" />
+ <link rel="next" title="3.5. Region Store" href="RegionStore.html" />
+ <link rel="prev" title="3.3. Initializer List" href="InitializerLists.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>3.4. Nullability Checks</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="InitializerLists.html">3.3. Initializer List</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="RegionStore.html">3.5. Region Store</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="nullability-checks">
+<h1>3.4. Nullability Checks<a class="headerlink" href="#nullability-checks" title="Permalink to this headline">¶</a></h1>
+<p>This document is a high level description of the nullablility checks.
+These checks intended to use the annotations that is described in this
+RFC: <a class="reference external" href="http://lists.cs.uiuc.edu/pipermail/cfe-dev/2015-March/041798.html">http://lists.cs.uiuc.edu/pipermail/cfe-dev/2015-March/041798.html</a>.</p>
+<p>Letâs consider the following 2 categories:</p>
+<p><strong>1) nullable</strong></p>
+<p>If a pointer <code class="docutils literal notranslate"><span class="pre">p</span></code> has a nullable annotation and no explicit null check or assert, we should warn in the following cases:</p>
+<ul class="simple">
+<li><code class="docutils literal notranslate"><span class="pre">p</span></code> gets implicitly converted into nonnull pointer, for example, we are passing it to a function that takes a nonnull parameter.</li>
+<li><code class="docutils literal notranslate"><span class="pre">p</span></code> gets dereferenced</li>
+</ul>
+<p>Taking a branch on nullable pointers are the same like taking branch on null unspecified pointers.</p>
+<p>Explicit cast from nullable to nonnul:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">__nullable</span> <span class="n">id</span> <span class="n">foo</span><span class="p">;</span>
+<span class="n">id</span> <span class="n">bar</span> <span class="o">=</span> <span class="n">foo</span><span class="p">;</span>
+<span class="n">takesNonNull</span><span class="p">((</span><span class="n">_nonnull</span><span class="p">)</span> <span class="n">bar</span><span class="p">);</span> <span class="c1">// should not warn here (backward compatibility hack)</span>
+<span class="n">anotherTakesNonNull</span><span class="p">(</span><span class="n">bar</span><span class="p">);</span> <span class="c1">// would be great to warn here, but not necessary(*)</span>
+</pre></div>
+</div>
+<p>Because bar corresponds to the same symbol all the time it is not easy to implement the checker that way the cast only suppress the first call but not the second. For this reason in the first implementation after a contradictory cast happens, I will treat bar as nullable unspecified, this way all of the warnings will be suppressed. Treating the symbol as nullable unspecified also has an advantage that in case the takesNonNull function body is being inlined, the will be no warning, when the symbol is dereferenced. In case I have time after the initial version I might spend additional time to try to find a more sophisticated solution, in which we would produce the second warning (*).</p>
+<p><strong>2) nonnull</strong></p>
+<ul class="simple">
+<li>Dereferencing a nonnull, or sending message to it is ok.</li>
+<li>Converting nonnull to nullable is Ok.</li>
+<li>When there is an explicit cast from nonnull to nullable I will trust the cast (it is probable there for a reason, because this cast does not suppress any warnings or errors).</li>
+<li>But what should we do about null checks?:</li>
+</ul>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">__nonnull</span> <span class="n">id</span> <span class="nf">takesNonnull</span><span class="p">(</span><span class="n">__nonnull</span> <span class="n">id</span> <span class="n">x</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="n">x</span> <span class="o">==</span> <span class="n">nil</span><span class="p">)</span> <span class="p">{</span>
+ <span class="c1">// Defensive backward compatible code:</span>
+ <span class="p">....</span>
+ <span class="k">return</span> <span class="n">nil</span><span class="p">;</span> <span class="c1">// Should the analyzer cover this piece of code? Should we require the cast (__nonnull)nil?</span>
+ <span class="p">}</span>
+ <span class="p">....</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>There are these directions:</p>
+<ul class="simple">
+<li>We can either take the branch; this way the branch is analyzed</li>
+<li>Should we not warn about any nullability issues in that branch? Probably not, it is ok to break the nullability postconditions when the nullability preconditions are violated.</li>
+<li>We can assume that these pointers are not null and we lose coverage with the analyzer. (This can be implemented either in constraint solver or in the checker itself.)</li>
+</ul>
+<p>Other Issues to keep in mind/take care of:</p>
+<ul class="simple">
+<li>Messaging:<ul>
+<li>Sending a message to a nullable pointer<ul>
+<li><dl class="first docutils">
+<dt>Even though the method might return a nonnull pointer, when it was sent to a nullable pointer the return type will be nullable.</dt>
+<dd><ul class="first last">
+<li>The result is nullable unless the receiver is known to be non null.</li>
+</ul>
+</dd>
+</dl>
+</li>
+</ul>
+</li>
+<li>Sending a message to a unspecified or nonnull pointer<ul>
+<li>If the pointer is not assumed to be nil, we should be optimistic and use the nullability implied by the method.<ul>
+<li>This will not happen automatically, since the AST will have null unspecified in this case.</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<div class="section" id="inlining">
+<h2>3.4.1. Inlining<a class="headerlink" href="#inlining" title="Permalink to this headline">¶</a></h2>
+<p>A symbol may need to be treated differently inside an inlined body. For example, consider these conversions from nonnull to nullable in presence of inlining:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">id</span> <span class="n">obj</span> <span class="o">=</span> <span class="n">getNonnull</span><span class="p">();</span>
+<span class="n">takesNullable</span><span class="p">(</span><span class="n">obj</span><span class="p">);</span>
+<span class="n">takesNonnull</span><span class="p">(</span><span class="n">obj</span><span class="p">);</span>
+
+<span class="kt">void</span> <span class="nf">takesNullable</span><span class="p">(</span><span class="n">nullable</span> <span class="n">id</span> <span class="n">obj</span><span class="p">)</span> <span class="p">{</span>
+ <span class="n">obj</span><span class="o">-></span><span class="n">ivar</span> <span class="c1">// we should assume obj is nullable and warn here</span>
+<span class="p">}</span>
+</pre></div>
+</div>
+<p>With no special treatment, when the takesNullable is inlined the analyzer will not warn when the obj symbol is dereferenced. One solution for this is to reanalyze takesNullable as a top level function to get possible violations. The alternative method, deducing nullability information from the arguments after inlining is not robust enough (for example there might be more parameters with different nullability, but in the given path the two parameters might end up being the same symbol or there can be nested functions that take different view of the nullability of the same symbol). So the symbol will remain nonnull to avoid false positives but the functions that takes nullable parameters will be analyzed separately as well without inlining.</p>
+</div>
+<div class="section" id="annotations-on-multi-level-pointers">
+<h2>3.4.2. Annotations on multi level pointers<a class="headerlink" href="#annotations-on-multi-level-pointers" title="Permalink to this headline">¶</a></h2>
+<p>Tracking multiple levels of annotations for pointers pointing to pointers would make the checker more complicated, because this way a vector of nullability qualifiers would be needed to be tracked for each symbol. This is not a big caveat, since once the top level pointer is dereferenced, the symvol for the inner pointer will have the nullability information. The lack of multi level annotation tracking only observable, when multiple levels of pointers are passed to a function which has a parameter with multiple levels of annotations. So for now the checker support the top level nullability qualifiers only.:</p>
+<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="kt">int</span> <span class="o">*</span> <span class="n">__nonnull</span> <span class="o">*</span> <span class="n">__nullable</span> <span class="n">p</span><span class="p">;</span>
+<span class="kt">int</span> <span class="o">**</span> <span class="n">q</span> <span class="o">=</span> <span class="n">p</span><span class="p">;</span>
+<span class="n">takesStarNullableStarNullable</span><span class="p">(</span><span class="n">q</span><span class="p">);</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="implementation-notes">
+<h2>3.4.3. Implementation notes<a class="headerlink" href="#implementation-notes" title="Permalink to this headline">¶</a></h2>
+<p>What to track?</p>
+<ul class="simple">
+<li>The checker would track memory regions, and to each relevant region a qualifier information would be attached which is either nullable, nonnull or null unspecified (or contradicted to suppress warnings for a specific region).</li>
+<li>On a branch, where a nullable pointer is known to be non null, the checker treat it as a same way as a pointer annotated as nonnull.</li>
+<li>When there is an explicit cast from a null unspecified to either nonnull or nullable I will trust the cast.</li>
+<li>Unannotated pointers are treated the same way as pointers annotated with nullability unspecified qualifier, unless the region is wrapped in ASSUME_NONNULL macros.</li>
+<li>We might want to implement a callback for entry points to top level functions, where the pointer nullability assumptions would be made.</li>
+</ul>
+</div>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="InitializerLists.html">3.3. Initializer List</a>
+ ::
+ <a class="uplink" href="../../index.html">Contents</a>
+ ::
+ <a href="RegionStore.html">3.5. Region Store</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
Added: www-releases/trunk/9.0.0/tools/clang/docs/analyzer/user-docs.html
URL: http://llvm.org/viewvc/llvm-project/www-releases/trunk/9.0.0/tools/clang/docs/analyzer/user-docs.html?rev=372328&view=auto
==============================================================================
--- www-releases/trunk/9.0.0/tools/clang/docs/analyzer/user-docs.html (added)
+++ www-releases/trunk/9.0.0/tools/clang/docs/analyzer/user-docs.html Thu Sep 19 07:32:46 2019
@@ -0,0 +1,64 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>2. User Docs — Clang 9 documentation</title>
+ <link rel="stylesheet" href="../_static/haiku.css" type="text/css" />
+ <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
+ <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
+ <script type="text/javascript" src="../_static/jquery.js"></script>
+ <script type="text/javascript" src="../_static/underscore.js"></script>
+ <script type="text/javascript" src="../_static/doctools.js"></script>
+ <script type="text/javascript" src="../_static/language_data.js"></script>
+ <link rel="index" title="Index" href="../genindex.html" />
+ <link rel="search" title="Search" href="../search.html" />
+ <link rel="next" title="3. Developer Docs" href="developer-docs.html" />
+ <link rel="prev" title="1. Available Checkers" href="checkers.html" />
+ </head><body>
+ <div class="header" role="banner"><h1 class="heading"><a href="../index.html">
+ <span>Clang 9 documentation</span></a></h1>
+ <h2 class="heading"><span>2. User Docs</span></h2>
+ </div>
+ <div class="topnav" role="navigation" aria-label="top navigation">
+
+ <p>
+ « <a href="checkers.html">1. Available Checkers</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="developer-docs.html">3. Developer Docs</a> »
+ </p>
+
+ </div>
+ <div class="content">
+
+
+ <div class="section" id="user-docs">
+<h1>2. User Docs<a class="headerlink" href="#user-docs" title="Permalink to this headline">¶</a></h1>
+<p>Contents:</p>
+</div>
+
+
+ </div>
+ <div class="bottomnav" role="navigation" aria-label="bottom navigation">
+
+ <p>
+ « <a href="checkers.html">1. Available Checkers</a>
+ ::
+ <a class="uplink" href="../index.html">Contents</a>
+ ::
+ <a href="developer-docs.html">3. Developer Docs</a> »
+ </p>
+
+ </div>
+
+ <div class="footer" role="contentinfo">
+ © Copyright 2007-2019, The Clang Team.
+ Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.8.4.
+ </div>
+ </body>
+</html>
\ No newline at end of file
More information about the llvm-commits
mailing list