[cfe-commits] r147457 - in /cfe/trunk: include/clang/AST/DeclObjC.h include/clang/Basic/Attr.td include/clang/Sema/AttributeList.h lib/Sema/AttributeList.cpp lib/Sema/SemaDeclAttr.cpp

[Fariborz Jahanian]

Author: fjahanian
Date: Tue Jan  3 12:45:41 2012
New Revision: 147457

URL: http://llvm.org/viewvc/llvm-project?rev=147457&view=rev
Log:
objc: introduce objc_suppress_autosynthesis class 
attributes for later use.

Modified:
    cfe/trunk/include/clang/AST/DeclObjC.h
    cfe/trunk/include/clang/Basic/Attr.td
    cfe/trunk/include/clang/Sema/AttributeList.h
    cfe/trunk/lib/Sema/AttributeList.cpp
    cfe/trunk/lib/Sema/SemaDeclAttr.cpp

Modified: cfe/trunk/include/clang/AST/DeclObjC.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclObjC.h?rev=147457&r1=147456&r2=147457&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclObjC.h (original)
+++ cfe/trunk/include/clang/AST/DeclObjC.h Tue Jan  3 12:45:41 2012
@@ -864,6 +864,18 @@
    return false;
   }
 
+  /// isObjCSuppressAutosynthesis - Checks that a class or one of its super 
+  /// classes must not be auto-synthesized. Returns true if it must not be.
+  bool isObjCSuppressAutosynthesis() const {
+    const ObjCInterfaceDecl *Class = this;
+    while (Class) {
+      if (Class->hasAttr<ObjCSuppressAutosynthesisAttr>())
+        return true;
+      Class = Class->getSuperClass();
+   }
+   return false;
+  }
+
   ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName,
                                        ObjCInterfaceDecl *&ClassDeclared);
   ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName) {

Modified: cfe/trunk/include/clang/Basic/Attr.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Attr.td?rev=147457&r1=147456&r2=147457&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/Attr.td (original)
+++ cfe/trunk/include/clang/Basic/Attr.td Tue Jan  3 12:45:41 2012
@@ -524,6 +524,10 @@
   let Spellings = ["objc_arc_weak_reference_unavailable"];
 }
 
+def ObjCSuppressAutosynthesis : InheritableAttr {
+  let Spellings = ["objc_suppress_autosynhesis"];
+}
+
 def Unused : InheritableAttr {
   let Spellings = ["unused"];
 }

Modified: cfe/trunk/include/clang/Sema/AttributeList.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/AttributeList.h?rev=147457&r1=147456&r2=147457&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/AttributeList.h (original)
+++ cfe/trunk/include/clang/Sema/AttributeList.h Tue Jan  3 12:45:41 2012
@@ -169,6 +169,7 @@
     AT_analyzer_noreturn,
     AT_annotate,
     AT_arc_weakref_unavailable,
+    AT_objc_suppress_autosynthesis,
     AT_availability,      // Clang-specific
     AT_base_check,
     AT_blocks,

Modified: cfe/trunk/lib/Sema/AttributeList.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/AttributeList.cpp?rev=147457&r1=147456&r2=147457&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/AttributeList.cpp (original)
+++ cfe/trunk/lib/Sema/AttributeList.cpp Tue Jan  3 12:45:41 2012
@@ -108,6 +108,7 @@
     .Case("weak", AT_weak)
     .Case("weakref", AT_weakref)
     .Case("objc_arc_weak_reference_unavailable", AT_arc_weakref_unavailable)
+    .Case("objc_suppress_autosynthesis", AT_objc_suppress_autosynthesis)
     .Case("pure", AT_pure)
     .Case("mode", AT_mode)
     .Case("used", AT_used)

Modified: cfe/trunk/lib/Sema/SemaDeclAttr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDeclAttr.cpp?rev=147457&r1=147456&r2=147457&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaDeclAttr.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDeclAttr.cpp Tue Jan  3 12:45:41 2012
@@ -1579,6 +1579,18 @@
                                           Attr.getRange(), S.Context));
 }
 
+static void handleObjCSuppressAutosynthesisAttr(Sema &S, Decl *D, 
+                                            const AttributeList &Attr) {
+  unsigned NumArgs = Attr.getNumArgs();
+  if (NumArgs > 0) {
+    S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0;
+    return;
+  }
+  
+  D->addAttr(::new (S.Context) ObjCSuppressAutosynthesisAttr(
+                                 Attr.getRange(), S.Context));
+}
+
 static void handleAvailabilityAttr(Sema &S, Decl *D,
                                    const AttributeList &Attr) {
   IdentifierInfo *Platform = Attr.getParameterName();
@@ -3603,6 +3615,9 @@
   case AttributeList::AT_arc_weakref_unavailable: 
     handleArcWeakrefUnavailableAttr (S, D, Attr); 
     break;
+  case AttributeList::AT_objc_suppress_autosynthesis: 
+    handleObjCSuppressAutosynthesisAttr (S, D, Attr); 
+    break;
   case AttributeList::AT_unused:      handleUnusedAttr      (S, D, Attr); break;
   case AttributeList::AT_returns_twice:
     handleReturnsTwiceAttr(S, D, Attr);