[clang-tools-extra] r187345 - Initial architecture for clang-tidy.

Benjamin Kramer benny.kra at gmail.com
Sun Aug 4 07:11:55 PDT 2013


On 29.07.2013, at 10:19, Daniel Jasper <djasper at google.com> wrote:

> Author: djasper
> Date: Mon Jul 29 03:19:24 2013
> New Revision: 187345
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=187345&view=rev
> Log:
> Initial architecture for clang-tidy.
> 
> This is the first version of a possible clang-tidy architecture. The
> purpose of clang-tidy is to detect errors in adhering to common coding
> patterns, e.g. described in the LLVM Coding Standards.
> 
> This is still heavily in flux.
> 
> Review: http://llvm-reviews.chandlerc.com/D884
> 
> Added:
>    clang-tools-extra/trunk/clang-tidy/
>    clang-tools-extra/trunk/clang-tidy/CMakeLists.txt
>    clang-tools-extra/trunk/clang-tidy/ClangTidy.cpp
>    clang-tools-extra/trunk/clang-tidy/ClangTidy.h
>    clang-tools-extra/trunk/clang-tidy/ClangTidyDiagnosticConsumer.h
>    clang-tools-extra/trunk/clang-tidy/ClangTidyModule.cpp
>    clang-tools-extra/trunk/clang-tidy/ClangTidyModule.h
>    clang-tools-extra/trunk/clang-tidy/ClangTidyModuleRegistry.h
>    clang-tools-extra/trunk/clang-tidy/Makefile
>      - copied, changed from r187306, clang-tools-extra/trunk/unittests/Makefile
>    clang-tools-extra/trunk/clang-tidy/google/
>    clang-tools-extra/trunk/clang-tidy/google/CMakeLists.txt
>    clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.cpp
>    clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.h
>    clang-tools-extra/trunk/clang-tidy/google/Makefile
>      - copied, changed from r187306, clang-tools-extra/trunk/unittests/Makefile
>    clang-tools-extra/trunk/clang-tidy/llvm/
>    clang-tools-extra/trunk/clang-tidy/llvm/CMakeLists.txt
>    clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.cpp
>    clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.h
>    clang-tools-extra/trunk/clang-tidy/llvm/Makefile
>      - copied, changed from r187306, clang-tools-extra/trunk/unittests/Makefile
>    clang-tools-extra/trunk/clang-tidy/tool/
>    clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt
>    clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp
>    clang-tools-extra/trunk/clang-tidy/tool/Makefile
>    clang-tools-extra/trunk/test/clang-tidy/
>    clang-tools-extra/trunk/test/clang-tidy/basic.cpp
>    clang-tools-extra/trunk/test/clang-tidy/fix.cpp
>    clang-tools-extra/trunk/test/clang-tidy/select-checks.cpp
>    clang-tools-extra/trunk/unittests/clang-tidy/
>    clang-tools-extra/trunk/unittests/clang-tidy/CMakeLists.txt
>    clang-tools-extra/trunk/unittests/clang-tidy/ClangTidyTest.h
>    clang-tools-extra/trunk/unittests/clang-tidy/GoogleModuleTest.cpp
>    clang-tools-extra/trunk/unittests/clang-tidy/LLVMModuleTest.cpp
>    clang-tools-extra/trunk/unittests/clang-tidy/Makefile
> Modified:
>    clang-tools-extra/trunk/CMakeLists.txt
>    clang-tools-extra/trunk/Makefile
>    clang-tools-extra/trunk/test/CMakeLists.txt
>    clang-tools-extra/trunk/unittests/CMakeLists.txt
>    clang-tools-extra/trunk/unittests/Makefile
> 
> Modified: clang-tools-extra/trunk/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/CMakeLists.txt?rev=187345&r1=187344&r2=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/CMakeLists.txt (original)
> +++ clang-tools-extra/trunk/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -2,6 +2,7 @@ add_subdirectory(remove-cstr-calls)
> add_subdirectory(tool-template)
> add_subdirectory(cpp11-migrate)
> add_subdirectory(modularize)
> +add_subdirectory(clang-tidy)
> 
> # Add the common testsuite after all the tools.
> add_subdirectory(test)
> 
> Modified: clang-tools-extra/trunk/Makefile
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/Makefile?rev=187345&r1=187344&r2=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/Makefile (original)
> +++ clang-tools-extra/trunk/Makefile Mon Jul 29 03:19:24 2013
> @@ -12,7 +12,7 @@ CLANG_LEVEL := ../..
> include $(CLANG_LEVEL)/../../Makefile.config
> 
> PARALLEL_DIRS := remove-cstr-calls tool-template modularize
> -DIRS := cpp11-migrate unittests
> +DIRS := cpp11-migrate clang-tidy unittests
> 
> include $(CLANG_LEVEL)/Makefile
> 
> 
> Added: clang-tools-extra/trunk/clang-tidy/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/CMakeLists.txt?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/clang-tidy/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,23 @@
> +set(LLVM_LINK_COMPONENTS
> +  ${LLVM_TARGETS_TO_BUILD}
> +  asmparser
> +  bitreader
> +  support
> +  mc
> +  )
> +
> +add_clang_library(clangTidy
> +  ClangTidy.cpp
> +  ClangTidyModule.cpp
> +  )
> +target_link_libraries(clangTidy
> +  clangTooling
> +  clangBasic
> +  clangRewriteFrontend
> +  clangTidyLLVMModule
> +  clangTidyGoogleModule
> +  )

This design has dependencies from clangTidyLLVMModule to clangTidy and vice-versa. Are those really standalone libraries?

- Ben 

> +
> +add_subdirectory(tool)
> +add_subdirectory(llvm)
> +add_subdirectory(google)
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidy.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidy.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidy.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidy.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,184 @@
> +//===--- tools/extra/clang-tidy/ClangTidy.cpp - Clang tidy tool -----------===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +///
> +///  \file This file implements a clang-tidy tool.
> +///
> +///  This tool uses the Clang Tooling infrastructure, see
> +///    http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
> +///  for details on setting it up with LLVM source tree.
> +///
> +//===----------------------------------------------------------------------===//
> +
> +#include "ClangTidy.h"
> +#include "ClangTidyDiagnosticConsumer.h"
> +#include "ClangTidyModuleRegistry.h"
> +#include "clang/AST/ASTConsumer.h"
> +#include "clang/AST/ASTContext.h"
> +#include "clang/AST/Decl.h"
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Lex/PPCallbacks.h"
> +#include "clang/Lex/Preprocessor.h"
> +#include "clang/Frontend/ASTConsumers.h"
> +#include "clang/Frontend/CompilerInstance.h"
> +#include "clang/Frontend/FrontendActions.h"
> +#include "clang/Frontend/TextDiagnosticPrinter.h"
> +#include "clang/Rewrite/Frontend/FixItRewriter.h"
> +#include "clang/Rewrite/Frontend/FrontendActions.h"
> +#include "clang/Tooling/Tooling.h"
> +#include "clang/Tooling/Refactoring.h"
> +#include "llvm/Support/Path.h"
> +#include "llvm/Support/Signals.h"
> +#include <vector>
> +
> +using namespace clang::ast_matchers;
> +using namespace clang::driver;
> +using namespace clang::tooling;
> +using namespace llvm;
> +
> +namespace clang {
> +namespace tidy {
> +namespace {
> +
> +class ClangTidyPPAction : public PreprocessOnlyAction {
> +public:
> +  ClangTidyPPAction(SmallVectorImpl<ClangTidyCheck *> &Checks,
> +                    ClangTidyContext &Context)
> +      : Checks(Checks), Context(Context) {}
> +
> +private:
> +  virtual bool BeginSourceFileAction(CompilerInstance &Compiler,
> +                                     llvm::StringRef file_name) {
> +    Context.setSourceManager(&Compiler.getSourceManager());
> +    for (SmallVectorImpl<ClangTidyCheck *>::iterator I = Checks.begin(),
> +                                                     E = Checks.end();
> +         I != E; ++I)
> +      (*I)->registerPPCallbacks(Compiler);
> +    return true;
> +  }
> +
> +  SmallVectorImpl<ClangTidyCheck *> &Checks;
> +  ClangTidyContext &Context;
> +};
> +
> +class ClangTidyPPActionFactory : public FrontendActionFactory {
> +public:
> +  ClangTidyPPActionFactory(SmallVectorImpl<ClangTidyCheck *> &Checks,
> +                           ClangTidyContext &Context)
> +      : Checks(Checks), Context(Context) {}
> +
> +  virtual FrontendAction *create() {
> +    return new ClangTidyPPAction(Checks, Context);
> +  }
> +
> +private:
> +  SmallVectorImpl<ClangTidyCheck *> &Checks;
> +  ClangTidyContext &Context;
> +};
> +
> +} // namespace
> +
> +ClangTidyError::ClangTidyError(const SourceManager &Sources, SourceLocation Loc,
> +                               StringRef Message,
> +                               const tooling::Replacements &Fix)
> +    : Message(Message), Fix(Fix) {
> +  FilePath = Sources.getFilename(Loc);
> +  FileOffset = Sources.getFileOffset(Loc);
> +}
> +
> +DiagnosticBuilder ClangTidyContext::Diag(SourceLocation Loc,
> +                                         StringRef Message) {
> +  return DiagEngine->Report(
> +      Loc, DiagEngine->getCustomDiagID(DiagnosticsEngine::Warning, Message));
> +}
> +
> +void ClangTidyContext::setDiagnosticsEngine(DiagnosticsEngine *Engine) {
> +  DiagEngine = Engine;
> +}
> +
> +void ClangTidyContext::setSourceManager(SourceManager *SourceMgr) {
> +  DiagEngine->setSourceManager(SourceMgr);
> +}
> +
> +/// \brief Store a \c ClangTidyError.
> +void ClangTidyContext::storeError(const ClangTidyError &Error) {
> +  Errors->push_back(Error);
> +}
> +
> +void ClangTidyCheck::run(const ast_matchers::MatchFinder::MatchResult &Result) {
> +  Context->setSourceManager(Result.SourceManager);
> +  check(Result);
> +}
> +
> +void runClangTidy(StringRef CheckRegexString,
> +                  const tooling::CompilationDatabase &Compilations,
> +                  ArrayRef<std::string> Ranges,
> +                  SmallVectorImpl<ClangTidyError> *Errors) {
> +  // FIXME: Ranges are currently full files. Support selecting specific
> +  // (line-)ranges.
> +  ClangTool Tool(Compilations, Ranges);
> +  clang::tidy::ClangTidyContext Context(Errors);
> +  ClangTidyDiagnosticConsumer DiagConsumer(Context);
> +  ClangTidyCheckFactories CheckFactories;
> +  for (ClangTidyModuleRegistry::iterator I = ClangTidyModuleRegistry::begin(),
> +                                         E = ClangTidyModuleRegistry::end();
> +       I != E; ++I) {
> +    OwningPtr<ClangTidyModule> Module(I->instantiate());
> +    Module->addCheckFactories(CheckFactories);
> +  }
> +
> +  SmallVector<ClangTidyCheck *, 16> Checks;
> +  CheckFactories.createChecks(CheckRegexString, Checks);
> +
> +  MatchFinder Finder;
> +  for (SmallVectorImpl<ClangTidyCheck *>::iterator I = Checks.begin(),
> +                                                   E = Checks.end();
> +       I != E; ++I) {
> +    (*I)->setContext(&Context);
> +    (*I)->registerMatchers(&Finder);
> +  }
> +
> +  Tool.run(new ClangTidyPPActionFactory(Checks, Context));
> +  Tool.run(newFrontendActionFactory(&Finder));
> +}
> +
> +void handleErrors(SmallVectorImpl<ClangTidyError> &Errors, bool Fix) {
> +  FileManager Files((FileSystemOptions()));
> +  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
> +  DiagnosticConsumer *DiagPrinter =
> +      new TextDiagnosticPrinter(llvm::outs(), &*DiagOpts);
> +  DiagnosticsEngine Diags(IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs),
> +                          &*DiagOpts, DiagPrinter);
> +  DiagPrinter->BeginSourceFile(LangOptions());
> +  SourceManager SourceMgr(Diags, Files);
> +  Rewriter Rewrite(SourceMgr, LangOptions());
> +  for (SmallVectorImpl<ClangTidyError>::iterator I = Errors.begin(),
> +                                                 E = Errors.end();
> +       I != E; ++I) {
> +    const FileEntry *File = Files.getFile(I->FilePath);
> +    FileID ID = SourceMgr.createFileID(File, SourceLocation(), SrcMgr::C_User);
> +    SourceLocation Loc = SourceMgr.getLocForStartOfFile(ID);
> +    Diags.Report(Loc.getLocWithOffset(I->FileOffset),
> +                 Diags.getCustomDiagID(DiagnosticsEngine::Warning, I->Message));
> +    tooling::applyAllReplacements(I->Fix, Rewrite);
> +  }
> +  // FIXME: Run clang-format on changes.
> +  if (Fix)
> +    Rewrite.overwriteChangedFiles();
> +}
> +
> +// This anchor is used to force the linker to link the LLVMModule.
> +extern volatile int LLVMModuleAnchorSource;
> +static int LLVMModuleAnchorDestination = LLVMModuleAnchorSource;
> +
> +// This anchor is used to force the linker to link the GoogleModule.
> +extern volatile int GoogleModuleAnchorSource;
> +static int GoogleModuleAnchorDestination = GoogleModuleAnchorSource;
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidy.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidy.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidy.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidy.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,161 @@
> +//===--- ClangTidy.h - clang-tidy -------------------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_H
> +
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Basic/Diagnostic.h"
> +#include "clang/Basic/SourceManager.h"
> +#include "clang/Tooling/Refactoring.h"
> +
> +namespace clang {
> +
> +class CompilerInstance;
> +namespace ast_matchers {
> +class MatchFinder;
> +}
> +namespace tooling {
> +class CompilationDatabase;
> +}
> +
> +namespace tidy {
> +
> +/// \brief A detected error complete with information to display diagnostic and
> +/// automatic fix.
> +///
> +/// This is used as an intermediate format to transport Diagnostics without a
> +/// dependency on a SourceManager.
> +///
> +/// FIXME: Make Diagnostics flexible enough to support this directly.
> +struct ClangTidyError {
> +  ClangTidyError(const SourceManager &Sources, SourceLocation Loc,
> +                 StringRef Message, const tooling::Replacements &Fix);
> +
> +  std::string Message;
> +  unsigned FileOffset;
> +  std::string FilePath;
> +  tooling::Replacements Fix;
> +};
> +
> +/// \brief Every \c ClangTidyCheck reports errors through a \c DiagnosticEngine
> +/// provided by this context.
> +///
> +/// A \c ClangTidyCheck always has access to the active context to report
> +/// warnings like:
> +/// \code
> +/// Context->Diag(Loc, "Single-argument constructors must be explicit")
> +///     << FixItHint::CreateInsertion(Loc, "explicit ");
> +/// \endcode
> +class ClangTidyContext {
> +public:
> +  ClangTidyContext(SmallVectorImpl<ClangTidyError> *Errors) : Errors(Errors) {}
> +
> +  /// \brief Report any errors detected using this method.
> +  ///
> +  /// This is still under heavy development and will likely change towards using
> +  /// tablegen'd diagnostic IDs.
> +  /// FIXME: Figure out a way to manage ID spaces.
> +  DiagnosticBuilder Diag(SourceLocation Loc, StringRef Message);
> +
> +  /// \brief Sets the \c DiagnosticsEngine so that Diagnostics can be generated
> +  /// correctly.
> +  ///
> +  /// This is called from the \c ClangTidyCheck base class.
> +  void setDiagnosticsEngine(DiagnosticsEngine *Engine);
> +
> +  /// \brief Sets the \c SourceManager of the used \c DiagnosticsEngine.
> +  ///
> +  /// This is called from the \c ClangTidyCheck base class.
> +  void setSourceManager(SourceManager *SourceMgr);
> +
> +private:
> +  friend class ClangTidyDiagnosticConsumer; // Calls storeError().
> +
> +  /// \brief Store a \c ClangTidyError.
> +  void storeError(const ClangTidyError &Error);
> +
> +  SmallVectorImpl<ClangTidyError> *Errors;
> +  DiagnosticsEngine *DiagEngine;
> +};
> +
> +/// \brief Base class for all clang-tidy checks.
> +///
> +/// To implement a \c ClangTidyCheck, write a subclass and overwrite some of the
> +/// base class's methods. E.g. to implement a check that validates namespace
> +/// declarations, overwrite \c registerMatchers:
> +///
> +/// \code
> +/// registerMatchers(ast_matchers::MatchFinder *Finder) {
> +///   Finder->addMatcher(namespaceDecl().bind("namespace"), this);
> +/// }
> +/// \endcode
> +///
> +/// and then overwrite \c check(const MatchResult &Result) to do the actual
> +/// check for each match.
> +///
> +/// A new \c ClangTidyCheck instance is created per translation unit.
> +///
> +/// FIXME: Figure out whether carrying information from one TU to another is
> +/// useful/necessary.
> +class ClangTidyCheck : public ast_matchers::MatchFinder::MatchCallback {
> +public:
> +  virtual ~ClangTidyCheck() {}
> +
> +  /// \brief Overwrite this to register \c PPCallbacks with \c Compiler.
> +  ///
> +  /// This should be used for clang-tidy checks that analyze preprocessor-
> +  /// dependent properties, e.g. the order of include directives.
> +  virtual void registerPPCallbacks(CompilerInstance &Compiler) {}
> +
> +  /// \brief Overwrite this to register ASTMatchers with \p Finder.
> +  ///
> +  /// This should be used by clang-tidy checks that analyze code properties that
> +  /// dependent on AST knowledge.
> +  ///
> +  /// You can register as many matchers as necessary with \p Finder. Usually,
> +  /// "this" will be used as callback, but you can also specify other callback
> +  /// classes. Thereby, different matchers can trigger different callbacks.
> +  ///
> +  /// If you need to merge information between the different matchers, you can
> +  /// store these as members of the derived class. However, note that all
> +  /// matches occur in the order of the AST traversal.
> +  virtual void registerMatchers(ast_matchers::MatchFinder *Finder) {}
> +
> +  /// \brief \c ClangTidyChecks that register ASTMatchers should do the actual
> +  /// work in here.
> +  virtual void check(const ast_matchers::MatchFinder::MatchResult &Result) {}
> +
> +  /// \brief The infrastructure sets the context to \p Ctx with this function.
> +  void setContext(ClangTidyContext *Ctx) { Context = Ctx; }
> +
> +protected:
> +  ClangTidyContext *Context;
> +
> +private:
> +  virtual void run(const ast_matchers::MatchFinder::MatchResult &Result);
> +};
> +
> +/// \brief Run a set of clang-tidy checks on a set of files.
> +void runClangTidy(StringRef CheckRegexString,
> +                  const tooling::CompilationDatabase &Compilations,
> +                  ArrayRef<std::string> Ranges,
> +                  SmallVectorImpl<ClangTidyError> *Errors);
> +
> +// FIXME: This interface will need to be significantly extended to be useful.
> +// FIXME: Implement confidence levels for displaying/fixing errors.
> +//
> +/// \brief Displays the found \p Errors to the users. If \p Fix is true, \p
> +/// Errors containing fixes are automatically applied.
> +void handleErrors(SmallVectorImpl<ClangTidyError> &Errors, bool Fix);
> +
> +} // end namespace tidy
> +} // end namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_H
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidyDiagnosticConsumer.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidyDiagnosticConsumer.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidyDiagnosticConsumer.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidyDiagnosticConsumer.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,71 @@
> +//===--- ClangTidyDiagnosticConsumer.h - clang-tidy -------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_DIAGNOSTIC_CONSUMER_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_DIAGNOSTIC_CONSUMER_H
> +
> +#include "clang/Basic/Diagnostic.h"
> +#include "clang/Basic/SourceManager.h"
> +#include "clang/Tooling/Refactoring.h"
> +#include "llvm/ADT/SmallString.h"
> +
> +namespace clang {
> +
> +class CompilerInstance;
> +namespace ast_matchers {
> +class MatchFinder;
> +}
> +namespace tooling {
> +class CompilationDatabase;
> +}
> +
> +namespace tidy {
> +
> +/// \brief A diagnostic consumer that turns each \c Diagnostic into a
> +/// \c SourceManager-independent \c ClangTidyError.
> +//
> +// FIXME: If we move away from unit-tests, this can be moved to a private
> +// implementation file.
> +class ClangTidyDiagnosticConsumer : public DiagnosticConsumer {
> +public:
> +  ClangTidyDiagnosticConsumer(ClangTidyContext &Ctx) : Context(Ctx) {
> +    IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
> +    Diags.reset(new DiagnosticsEngine(
> +        IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs), &*DiagOpts, this,
> +        /*ShouldOwnClient=*/false));
> +    Context.setDiagnosticsEngine(Diags.get());
> +  }
> +
> +  // FIXME: The concept of converting between FixItHints and Replacements is
> +  // more generic and should be pulled out into a more useful Diagnostics
> +  // library.
> +  virtual void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
> +                                const Diagnostic &Info) {
> +    tooling::Replacements Replacements;
> +    SourceManager &SourceMgr = Info.getSourceManager();
> +    for (unsigned i = 0, e = Info.getNumFixItHints(); i != e; ++i) {
> +      Replacements.insert(tooling::Replacement(
> +          SourceMgr, Info.getFixItHint(i).RemoveRange.getBegin(), 0,
> +          Info.getFixItHint(i).CodeToInsert));
> +    }
> +    SmallString<100> Buf;
> +    Info.FormatDiagnostic(Buf);
> +    Context.storeError(
> +        ClangTidyError(SourceMgr, Info.getLocation(), Buf.str(), Replacements));
> +  }
> +
> +private:
> +  ClangTidyContext &Context;
> +  OwningPtr<DiagnosticsEngine> Diags;
> +};
> +
> +} // end namespace tidy
> +} // end namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_DIAGNOSTIC_CONSUMER_H
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidyModule.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidyModule.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidyModule.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidyModule.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,49 @@
> +//===--- tools/extra/clang-tidy/ClangTidyModule.cpp - Clang tidy tool -----===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +///
> +///  \file Implements classes required to build clang-tidy modules.
> +///
> +//===----------------------------------------------------------------------===//
> +
> +#include "ClangTidyModule.h"
> +#include "llvm/Support/Regex.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +CheckFactoryBase::~CheckFactoryBase() {}
> +
> +ClangTidyCheckFactories::~ClangTidyCheckFactories() {
> +  for (std::map<std::string, CheckFactoryBase *>::iterator
> +           I = Factories.begin(),
> +           E = Factories.end();
> +       I != E; ++I) {
> +    delete I->second;
> +  }
> +}
> +void ClangTidyCheckFactories::addCheckFactory(StringRef Name,
> +                                              CheckFactoryBase *Factory) {
> +
> +  Factories[Name] = Factory;
> +}
> +
> +void ClangTidyCheckFactories::createChecks(
> +    StringRef CheckRegexString, SmallVectorImpl<ClangTidyCheck *> &Checks) {
> +  llvm::Regex CheckRegex(CheckRegexString);
> +  for (std::map<std::string, CheckFactoryBase *>::iterator
> +           I = Factories.begin(),
> +           E = Factories.end();
> +       I != E; ++I) {
> +    if (CheckRegex.match(I->first))
> +      Checks.push_back(I->second->createCheck());
> +  }
> +}
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidyModule.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidyModule.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidyModule.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidyModule.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,98 @@
> +//===--- ClangTidyModule.h - clang-tidy -------------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_H
> +
> +#include "ClangTidy.h"
> +#include "llvm/ADT/SmallVector.h"
> +#include "llvm/ADT/StringRef.h"
> +#include <utility>
> +
> +namespace clang {
> +namespace tidy {
> +
> +/// \brief A factory, that can instantiate a specific clang-tidy check for
> +/// processing a translation unit.
> +///
> +/// In order to register your check with the \c ClangTidyModule, create a
> +/// subclass of \c CheckFactoryBase and implement \c createCheck(). Then, use
> +/// this subclass in \c ClangTidyModule::addCheckFactories().
> +class CheckFactoryBase {
> +public:
> +  virtual ~CheckFactoryBase();
> +  virtual ClangTidyCheck *createCheck() = 0;
> +};
> +
> +/// \brief A subclass of \c CheckFactoryBase that should be used for all
> +/// \c ClangTidyChecks that don't require constructor parameters.
> +///
> +/// For example, if have a clang-tidy check like:
> +/// \code
> +/// class MyTidyCheck : public ClangTidyCheck {
> +///   virtual void registerMatchers(ast_matchers::MatchFinder *Finder) { .. }
> +/// };
> +/// \endcode
> +/// you can register it with:
> +/// \code
> +/// class MyModule : public ClangTidyModule {
> +///   virtual void addCheckFactories(ClangTidyCheckFactories &CheckFactories) {
> +///     CheckFactories.addCheckFactory(
> +///         "myproject-my-check", new ClangTidyCheckFactory<MyTidyCheck>());
> +///   }
> +/// };
> +/// \endcode
> +template <typename T> class ClangTidyCheckFactory : public CheckFactoryBase {
> +public:
> +  virtual ClangTidyCheck *createCheck() { return new T; }
> +};
> +
> +class ClangTidyCheckFactories;
> +
> +/// \brief A clang-tidy module groups a number of \c ClangTidyChecks and gives
> +/// them a prefixed name.
> +class ClangTidyModule {
> +public:
> +  virtual ~ClangTidyModule() {}
> +
> +  /// \brief Implement this function in order to register all \c CheckFactories
> +  /// belonging to this module.
> +  virtual void addCheckFactories(ClangTidyCheckFactories &CheckFactories) = 0;
> +};
> +
> +/// \brief A collection of \c ClangTidyCheckFactory instances.
> +///
> +/// All clang-tidy modules register their check factories with an instance of
> +/// this object.
> +class ClangTidyCheckFactories {
> +public:
> +  ClangTidyCheckFactories() {}
> +  ~ClangTidyCheckFactories();
> +
> +  /// \brief Register \p Factory with the name \p Name.
> +  ///
> +  /// The \c ClangTidyCheckFactories object takes ownership of the \p Factory.
> +  void addCheckFactory(StringRef Name, CheckFactoryBase *Factory);
> +
> +  /// \brief Create instances of all checks matching \p CheckRegexString and
> +  /// store them in \p Checks.
> +  ///
> +  /// The caller takes ownership of the return \c ClangTidyChecks.
> +  void createChecks(StringRef CheckRegexString,
> +                    SmallVectorImpl<ClangTidyCheck *> &Checks);
> +
> +private:
> +  StringRef FilterRegex;
> +  std::map<std::string, CheckFactoryBase *> Factories;
> +};
> +
> +} // end namespace tidy
> +} // end namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_H
> 
> Added: clang-tools-extra/trunk/clang-tidy/ClangTidyModuleRegistry.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/ClangTidyModuleRegistry.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/ClangTidyModuleRegistry.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/ClangTidyModuleRegistry.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,24 @@
> +//===--- ClangTidyModuleRegistry.h - clang-tidy -----------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_REGISTRY_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_REGISTRY_H
> +
> +#include "ClangTidyModule.h"
> +#include "llvm/Support/Registry.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +typedef llvm::Registry<ClangTidyModule> ClangTidyModuleRegistry;
> +
> +} // end namespace tidy
> +} // end namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANG_TIDY_MODULE_REGISTRY_H
> 
> Copied: clang-tools-extra/trunk/clang-tidy/Makefile (from r187306, clang-tools-extra/trunk/unittests/Makefile)
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/Makefile?p2=clang-tools-extra/trunk/clang-tidy/Makefile&p1=clang-tools-extra/trunk/unittests/Makefile&r1=187306&r2=187345&rev=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/Makefile (original)
> +++ clang-tools-extra/trunk/clang-tidy/Makefile Mon Jul 29 03:19:24 2013
> @@ -1,4 +1,4 @@
> -##===- tools/extra/test/Unit/Makefile ----------------------*- Makefile -*-===##
> +##===- tools/extra/clang-tidy/Makefile ----sssss------------*- Makefile -*-===##
> #
> #                     The LLVM Compiler Infrastructure
> #
> @@ -8,8 +8,9 @@
> ##===----------------------------------------------------------------------===##
> 
> CLANG_LEVEL := ../../..
> +LIBRARYNAME := clangTidy
> include $(CLANG_LEVEL)/../../Makefile.config
> 
> -PARALLEL_DIRS := cpp11-migrate
> +DIRS = llvm google tool
> 
> include $(CLANG_LEVEL)/Makefile
> 
> Added: clang-tools-extra/trunk/clang-tidy/google/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/google/CMakeLists.txt?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/google/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/clang-tidy/google/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,10 @@
> +set(LLVM_LINK_COMPONENTS support)
> +
> +add_clang_library(clangTidyGoogleModule
> +  GoogleTidyModule.cpp
> +  )
> +target_link_libraries(clangTidyGoogleModule
> +  clangTooling
> +  clangBasic
> +  clangASTMatchers
> +  )
> 
> Added: clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,61 @@
> +//===--- GoogleTidyModule.cpp - clang-tidy --------------------------------===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "GoogleTidyModule.h"
> +#include "../ClangTidy.h"
> +#include "../ClangTidyModule.h"
> +#include "../ClangTidyModuleRegistry.h"
> +#include "clang/AST/ASTContext.h"
> +#include "clang/ASTMatchers/ASTMatchers.h"
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Frontend/CompilerInstance.h"
> +#include "clang/Lex/Preprocessor.h"
> +#include "clang/Lex/PPCallbacks.h"
> +#include "llvm/Support/raw_ostream.h"
> +
> +using namespace clang::ast_matchers;
> +
> +namespace clang {
> +namespace tidy {
> +
> +void
> +ExplicitConstructorCheck::registerMatchers(ast_matchers::MatchFinder *Finder) {
> +  Finder->addMatcher(constructorDecl().bind("construct"), this);
> +}
> +
> +void ExplicitConstructorCheck::check(const MatchFinder::MatchResult &Result) {
> +  const CXXConstructorDecl *Ctor =
> +      Result.Nodes.getNodeAs<CXXConstructorDecl>("construct");
> +  if (!Ctor->isExplicit() && !Ctor->isImplicit() && Ctor->getNumParams() >= 1 &&
> +      Ctor->getMinRequiredArguments() <= 1) {
> +    SourceLocation Loc = Ctor->getLocation();
> +    Context->Diag(Loc, "Single-argument constructors must be explicit")
> +        << FixItHint::CreateInsertion(Loc, "explicit ");
> +  }
> +}
> +
> +class GoogleModule : public ClangTidyModule {
> +public:
> +  virtual void addCheckFactories(ClangTidyCheckFactories &CheckFactories) {
> +    CheckFactories.addCheckFactory(
> +        "google-explicit-constructor",
> +        new ClangTidyCheckFactory<ExplicitConstructorCheck>());
> +  }
> +};
> +
> +// Register the GoogleTidyModule using this statically initialized variable.
> +static ClangTidyModuleRegistry::Add<GoogleModule> X("google-module",
> +                                                    "Adds Google lint checks.");
> +
> +// This anchor is used to force the linker to link in the generated object file
> +// and thus register the GoogleModule.
> +volatile int GoogleModuleAnchorSource = 0;
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/google/GoogleTidyModule.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,31 @@
> +//===--- GoogleTidyModule.h - clang-tidy ------------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_GOOGLE_TIDY_MODULE_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_GOOGLE_TIDY_MODULE_H
> +
> +#include "../ClangTidy.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +/// \brief Checks that all single-argument constructors are explicit.
> +///
> +/// see:
> +/// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Explicit_Constructors
> +class ExplicitConstructorCheck : public ClangTidyCheck {
> +public:
> +  virtual void registerMatchers(ast_matchers::MatchFinder *Finder);
> +  virtual void check(const ast_matchers::MatchFinder::MatchResult &Result);
> +};
> +
> +} // namespace tidy
> +} // namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_GOOGLE_TIDY_MODULE_H
> 
> Copied: clang-tools-extra/trunk/clang-tidy/google/Makefile (from r187306, clang-tools-extra/trunk/unittests/Makefile)
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/google/Makefile?p2=clang-tools-extra/trunk/clang-tidy/google/Makefile&p1=clang-tools-extra/trunk/unittests/Makefile&r1=187306&r2=187345&rev=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/Makefile (original)
> +++ clang-tools-extra/trunk/clang-tidy/google/Makefile Mon Jul 29 03:19:24 2013
> @@ -1,4 +1,4 @@
> -##===- tools/extra/test/Unit/Makefile ----------------------*- Makefile -*-===##
> +##===- clang-tidy/google/Makefile --------------------------*- Makefile -*-===##
> #
> #                     The LLVM Compiler Infrastructure
> #
> @@ -6,10 +6,7 @@
> # License. See LICENSE.TXT for details.
> #
> ##===----------------------------------------------------------------------===##
> -
> -CLANG_LEVEL := ../../..
> -include $(CLANG_LEVEL)/../../Makefile.config
> -
> -PARALLEL_DIRS := cpp11-migrate
> +CLANG_LEVEL := ../../../..
> +LIBRARYNAME := clangTidyGoogleModule
> 
> include $(CLANG_LEVEL)/Makefile
> 
> Added: clang-tools-extra/trunk/clang-tidy/llvm/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/llvm/CMakeLists.txt?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/llvm/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/clang-tidy/llvm/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,10 @@
> +set(LLVM_LINK_COMPONENTS support)
> +
> +add_clang_library(clangTidyLLVMModule
> +  LLVMTidyModule.cpp
> +  )
> +target_link_libraries(clangTidyLLVMModule
> +  clangTooling
> +  clangBasic
> +  clangASTMatchers
> +  )
> 
> Added: clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,104 @@
> +//===--- LLVMTidyModule.cpp - clang-tidy ----------------------------------===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "LLVMTidyModule.h"
> +#include "../ClangTidy.h"
> +#include "../ClangTidyModule.h"
> +#include "../ClangTidyModuleRegistry.h"
> +#include "clang/AST/ASTContext.h"
> +#include "clang/ASTMatchers/ASTMatchers.h"
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Frontend/CompilerInstance.h"
> +#include "clang/Lex/Preprocessor.h"
> +#include "clang/Lex/PPCallbacks.h"
> +#include "llvm/Support/raw_ostream.h"
> +
> +using namespace clang::ast_matchers;
> +
> +namespace clang {
> +namespace tidy {
> +
> +void
> +NamespaceCommentCheck::registerMatchers(ast_matchers::MatchFinder *Finder) {
> +  Finder->addMatcher(namespaceDecl().bind("namespace"), this);
> +}
> +
> +void NamespaceCommentCheck::check(const MatchFinder::MatchResult &Result) {
> +  const NamespaceDecl *ND = Result.Nodes.getNodeAs<NamespaceDecl>("namespace");
> +  Token Tok;
> +  SourceLocation Loc = ND->getRBraceLoc().getLocWithOffset(1);
> +  while (Lexer::getRawToken(Loc, Tok, *Result.SourceManager,
> +                            Result.Context->getLangOpts())) {
> +    Loc = Loc.getLocWithOffset(1);
> +  }
> +  // FIXME: Check that this namespace is "long".
> +  if (Tok.is(tok::comment)) {
> +    // FIXME: Check comment content.
> +    return;
> +  }
> +  std::string Fix = " // namespace";
> +  if (!ND->isAnonymousNamespace())
> +    Fix = Fix.append(" ").append(ND->getNameAsString());
> +
> +  Context->Diag(ND->getLocation(),
> +                "namespace not terminated with a closing comment")
> +      << FixItHint::CreateInsertion(ND->getRBraceLoc().getLocWithOffset(1),
> +                                    Fix);
> +}
> +
> +namespace {
> +class IncludeOrderPPCallbacks : public PPCallbacks {
> +public:
> +  explicit IncludeOrderPPCallbacks(ClangTidyContext &Context)
> +      : Context(Context) {}
> +
> +  virtual void InclusionDirective(SourceLocation HashLoc,
> +                                  const Token &IncludeTok, StringRef FileName,
> +                                  bool IsAngled, CharSourceRange FilenameRange,
> +                                  const FileEntry *File, StringRef SearchPath,
> +                                  StringRef RelativePath,
> +                                  const Module *Imported) {
> +    // FIXME: This is a dummy implementation to show how to get at preprocessor
> +    // information. Implement a real include order check.
> +    Context.Diag(HashLoc, "This is an include");
> +  }
> +
> +private:
> +  ClangTidyContext &Context;
> +};
> +} // namespace
> +
> +void IncludeOrderCheck::registerPPCallbacks(CompilerInstance &Compiler) {
> +  Compiler.getPreprocessor()
> +      .addPPCallbacks(new IncludeOrderPPCallbacks(*Context));
> +}
> +
> +class LLVMModule : public ClangTidyModule {
> +public:
> +  virtual ~LLVMModule() {}
> +
> +  virtual void addCheckFactories(ClangTidyCheckFactories &CheckFactories) {
> +    CheckFactories.addCheckFactory(
> +        "llvm-include-order", new ClangTidyCheckFactory<IncludeOrderCheck>());
> +    CheckFactories.addCheckFactory(
> +        "llvm-namespace-comment",
> +        new ClangTidyCheckFactory<NamespaceCommentCheck>());
> +  }
> +};
> +
> +// Register the LLVMTidyModule using this statically initialized variable.
> +static ClangTidyModuleRegistry::Add<LLVMModule> X("llvm-module",
> +                                                  "Adds LLVM lint checks.");
> +
> +// This anchor is used to force the linker to link in the generated object file
> +// and thus register the LLVMModule.
> +volatile int LLVMModuleAnchorSource = 0;
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/llvm/LLVMTidyModule.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,38 @@
> +//===--- LLVMTidyModule.h - clang-tidy --------------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_LLVM_LLVM_TIDY_MODULE_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_LLVM_LLVM_TIDY_MODULE_H
> +
> +#include "../ClangTidy.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +/// \brief Checks the correct order of \c #includes.
> +///
> +/// see: http://llvm.org/docs/CodingStandards.html#include-style
> +class IncludeOrderCheck : public ClangTidyCheck {
> +public:
> +  virtual void registerPPCallbacks(CompilerInstance &Compiler);
> +};
> +
> +/// \brief Checks that long namespaces have a closing comment.
> +///
> +/// see: http://llvm.org/docs/CodingStandards.html#namespace-indentation
> +class NamespaceCommentCheck : public ClangTidyCheck {
> +public:
> +  virtual void registerMatchers(ast_matchers::MatchFinder *Finder);
> +  virtual void check(const ast_matchers::MatchFinder::MatchResult &Result);
> +};
> +
> +} // namespace tidy
> +} // namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_LLVM_TIDY_LLVM_MODULE_H
> 
> Copied: clang-tools-extra/trunk/clang-tidy/llvm/Makefile (from r187306, clang-tools-extra/trunk/unittests/Makefile)
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/llvm/Makefile?p2=clang-tools-extra/trunk/clang-tidy/llvm/Makefile&p1=clang-tools-extra/trunk/unittests/Makefile&r1=187306&r2=187345&rev=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/Makefile (original)
> +++ clang-tools-extra/trunk/clang-tidy/llvm/Makefile Mon Jul 29 03:19:24 2013
> @@ -1,4 +1,4 @@
> -##===- tools/extra/test/Unit/Makefile ----------------------*- Makefile -*-===##
> +##===- clang-tidy/llvm/Makefile ----------------------------*- Makefile -*-===##
> #
> #                     The LLVM Compiler Infrastructure
> #
> @@ -6,10 +6,7 @@
> # License. See LICENSE.TXT for details.
> #
> ##===----------------------------------------------------------------------===##
> -
> -CLANG_LEVEL := ../../..
> -include $(CLANG_LEVEL)/../../Makefile.config
> -
> -PARALLEL_DIRS := cpp11-migrate
> +CLANG_LEVEL := ../../../..
> +LIBRARYNAME := clangTidyLLVMModule
> 
> include $(CLANG_LEVEL)/Makefile
> 
> Added: clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,18 @@
> +set(LLVM_LINK_COMPONENTS
> +  ${LLVM_TARGETS_TO_BUILD}
> +  asmparser
> +  bitreader
> +  support
> +  mc
> +  )
> +
> +add_clang_executable(clang-tidy
> +  ClangTidyMain.cpp
> +  )
> +target_link_libraries(clang-tidy
> +  clangTidy
> +  )
> +
> +install(TARGETS clang-tidy
> +  RUNTIME DESTINATION bin)
> +
> 
> Added: clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,56 @@
> +//===--- tools/extra/clang-tidy/ClangTidyMain.cpp - Clang tidy tool -------===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +///
> +///  \file This file implements a clang-tidy tool.
> +///
> +///  This tool uses the Clang Tooling infrastructure, see
> +///    http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
> +///  for details on setting it up with LLVM source tree.
> +///
> +//===----------------------------------------------------------------------===//
> +
> +#include "../ClangTidy.h"
> +#include "clang/Driver/OptTable.h"
> +#include "clang/Driver/Options.h"
> +#include "llvm/Support/CommandLine.h"
> +#include <vector>
> +
> +using namespace clang::ast_matchers;
> +using namespace clang::driver;
> +using namespace clang::tooling;
> +using namespace llvm;
> +
> +cl::OptionCategory ClangTidyCategory("clang-tidy options");
> +
> +cl::list<std::string>
> +Ranges(cl::Positional, cl::desc("<range0> [... <rangeN>]"), cl::OneOrMore);
> +
> +static cl::opt<std::string> Checks(
> +    "checks",
> +    cl::desc("Regular expression matching the names of the checks to be run."),
> +    cl::init(".*"), cl::cat(ClangTidyCategory));
> +static cl::opt<bool> Fix("fix", cl::desc("Fix detected errors if possible."),
> +                         cl::init(false), cl::cat(ClangTidyCategory));
> +
> +// FIXME: Add option to list name/description of all checks.
> +
> +int main(int argc, const char **argv) {
> +  cl::ParseCommandLineOptions(argc, argv, "TBD\n");
> +  OwningPtr<clang::tooling::CompilationDatabase> Compilations(
> +      FixedCompilationDatabase::loadFromCommandLine(argc, argv));
> +  if (!Compilations)
> +    return 0;
> +  // FIXME: Load other compilation databases.
> +
> +  SmallVector<clang::tidy::ClangTidyError, 16> Errors;
> +  clang::tidy::runClangTidy(Checks, *Compilations, Ranges, &Errors);
> +  clang::tidy::handleErrors(Errors, Fix);
> +
> +  return 0;
> +}
> 
> Added: clang-tools-extra/trunk/clang-tidy/tool/Makefile
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/Makefile?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/tool/Makefile (added)
> +++ clang-tools-extra/trunk/clang-tidy/tool/Makefile Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,25 @@
> +##===- clang-tidy/tool/Makefile ----------------------------*- Makefile -*-===##
> +#
> +#                     The LLVM Compiler Infrastructure
> +#
> +# This file is distributed under the University of Illinois Open Source
> +# License. See LICENSE.TXT for details.
> +#
> +##===----------------------------------------------------------------------===##
> +
> +CLANG_LEVEL := ../../../..
> +
> +TOOLNAME = clang-tidy
> +
> +# No plugins, optimize startup time.
> +TOOL_NO_EXPORTS = 1
> +
> +include $(CLANG_LEVEL)/../../Makefile.config
> +LINK_COMPONENTS := $(TARGETS_TO_BUILD) asmparser bitreader support mc option
> +USEDLIBS = clangTidy.a clangTidyLLVMModule.a clangTidyGoogleModule.a \
> +	   clangFormat.a clangASTMatchers.a clangTooling.a clangFrontend.a \
> +	   clangSerialization.a clangDriver.a clangParse.a clangSema.a \
> +	   clangAnalysis.a clangRewriteFrontend.a clangRewriteCore.a \
> +	   clangEdit.a clangAST.a clangLex.a clangBasic.a 
> +
> +include $(CLANG_LEVEL)/Makefile
> 
> Modified: clang-tools-extra/trunk/test/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/CMakeLists.txt?rev=187345&r1=187344&r2=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/test/CMakeLists.txt (original)
> +++ clang-tools-extra/trunk/test/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -27,7 +27,7 @@ set(CLANG_TOOLS_TEST_DEPS
>   clang clang-headers FileCheck count not
> 
>   # Individual tools we test.
> -  remove-cstr-calls cpp11-migrate modularize
> +  remove-cstr-calls cpp11-migrate modularize clang-tidy
> 
>   # Unit tests
>   ExtraToolsUnitTests
> 
> Added: clang-tools-extra/trunk/test/clang-tidy/basic.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/basic.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/basic.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/basic.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,7 @@
> +// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
> +// RUN: clang-tidy %t.cpp -- > %t2.cpp
> +// RUN: FileCheck -input-file=%t2.cpp %s
> +
> +namespace i {
> +}
> +// CHECK: warning: namespace not terminated with a closing comment
> 
> Added: clang-tools-extra/trunk/test/clang-tidy/fix.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/fix.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/fix.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/fix.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,10 @@
> +// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
> +// RUN: clang-tidy %t.cpp -fix --
> +// RUN: FileCheck -input-file=%t.cpp %s
> +
> +namespace i {
> +}
> +// CHECK: } // namespace i
> +
> +class A { A(int i); };
> +// CHECK: class A { explicit A(int i); };
> 
> Added: clang-tools-extra/trunk/test/clang-tidy/select-checks.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/select-checks.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/select-checks.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/select-checks.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,10 @@
> +// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
> +// RUN: clang-tidy %t.cpp -fix -checks=llvm.* --
> +// RUN: FileCheck -input-file=%t.cpp %s
> +
> +namespace i {
> +}
> +// CHECK: } // namespace i
> +
> +class A { A(int i); }; // Not fixing this, because the check is in google-.
> +// CHECK: class A { A(int i); };
> 
> Modified: clang-tools-extra/trunk/unittests/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/CMakeLists.txt?rev=187345&r1=187344&r2=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/CMakeLists.txt (original)
> +++ clang-tools-extra/trunk/unittests/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -6,3 +6,4 @@ function(add_extra_unittest test_dirname
> endfunction()
> 
> add_subdirectory(cpp11-migrate)
> +add_subdirectory(clang-tidy)
> 
> Modified: clang-tools-extra/trunk/unittests/Makefile
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/Makefile?rev=187345&r1=187344&r2=187345&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/Makefile (original)
> +++ clang-tools-extra/trunk/unittests/Makefile Mon Jul 29 03:19:24 2013
> @@ -10,6 +10,6 @@
> CLANG_LEVEL := ../../..
> include $(CLANG_LEVEL)/../../Makefile.config
> 
> -PARALLEL_DIRS := cpp11-migrate
> +PARALLEL_DIRS := cpp11-migrate clang-tidy
> 
> include $(CLANG_LEVEL)/Makefile
> 
> Added: clang-tools-extra/trunk/unittests/clang-tidy/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/clang-tidy/CMakeLists.txt?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/clang-tidy/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/unittests/clang-tidy/CMakeLists.txt Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,20 @@
> +set(LLVM_LINK_COMPONENTS
> +  support
> +  )
> +
> +get_filename_component(CLANG_LINT_SOURCE_DIR
> +  ${CMAKE_CURRENT_SOURCE_DIR}/../../clang-tidy REALPATH)
> +include_directories(${CLANG_LINT_SOURCE_DIR})
> +
> +add_extra_unittest(ClangTidyTests
> +  LLVMModuleTest.cpp
> +  GoogleModuleTest.cpp)
> +
> +target_link_libraries(ClangTidyTests
> +  gtest
> +  gtest_main
> +  clangTidy
> +  clangTooling
> +  clangBasic
> +  clangASTMatchers
> +  )
> 
> Added: clang-tools-extra/trunk/unittests/clang-tidy/ClangTidyTest.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/clang-tidy/ClangTidyTest.h?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/clang-tidy/ClangTidyTest.h (added)
> +++ clang-tools-extra/trunk/unittests/clang-tidy/ClangTidyTest.h Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,75 @@
> +//===--- ClangTidyTest.h - clang-tidy ---------------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H
> +#define LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H
> +
> +#include "ClangTidy.h"
> +#include "ClangTidyDiagnosticConsumer.h"
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Frontend/CompilerInstance.h"
> +#include "clang/Frontend/FrontendActions.h"
> +#include "clang/Tooling/Refactoring.h"
> +#include "clang/Tooling/Tooling.h"
> +#include "gtest/gtest.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +template <typename T> class ClangTidyTest : public ::testing::Test {
> +protected:
> +  ClangTidyTest() : Check(new T), Context(&Errors) {}
> +
> +  std::string runCheckOn(StringRef Code) {
> +    ClangTidyDiagnosticConsumer DiagConsumer(Context);
> +    Check->setContext(&Context);
> +    EXPECT_TRUE(
> +        tooling::runToolOnCode(new TestPPAction(*Check, &Context), Code));
> +    ast_matchers::MatchFinder Finder;
> +    Check->registerMatchers(&Finder);
> +    OwningPtr<tooling::FrontendActionFactory> Factory(
> +        tooling::newFrontendActionFactory(&Finder));
> +    EXPECT_TRUE(tooling::runToolOnCode(Factory->create(), Code));
> +    tooling::Replacements Fixes;
> +    for (SmallVector<ClangTidyError, 16>::const_iterator I = Errors.begin(),
> +                                                         E = Errors.end();
> +         I != E; ++I)
> +      Fixes.insert(I->Fix.begin(), I->Fix.end());
> +    return tooling::applyAllReplacements(Code, Fixes);
> +  }
> +
> +  void expectNoChanges(StringRef Code) { EXPECT_EQ(Code, runCheckOn(Code)); }
> +
> +private:
> +  class TestPPAction : public PreprocessOnlyAction {
> +  public:
> +    TestPPAction(ClangTidyCheck &Check, ClangTidyContext *Context)
> +        : Check(Check), Context(Context) {}
> +
> +  private:
> +    virtual bool BeginSourceFileAction(CompilerInstance &Compiler,
> +                                       llvm::StringRef file_name) {
> +      Context->setSourceManager(&Compiler.getSourceManager());
> +      Check.registerPPCallbacks(Compiler);
> +      return true;
> +    }
> +
> +    ClangTidyCheck &Check;
> +    ClangTidyContext *Context;
> +  };
> +
> +  OwningPtr<ClangTidyCheck> Check;
> +  SmallVector<ClangTidyError, 16> Errors;
> +  ClangTidyContext Context;
> +};
> +
> +} // namespace tidy
> +} // namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H
> 
> Added: clang-tools-extra/trunk/unittests/clang-tidy/GoogleModuleTest.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/clang-tidy/GoogleModuleTest.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/clang-tidy/GoogleModuleTest.cpp (added)
> +++ clang-tools-extra/trunk/unittests/clang-tidy/GoogleModuleTest.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,26 @@
> +#include "ClangTidyTest.h"
> +
> +#include "google/GoogleTidyModule.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +typedef ClangTidyTest<ExplicitConstructorCheck> ExplicitConstructorCheckTest;
> +
> +TEST_F(ExplicitConstructorCheckTest, SingleArgumentConstructorsOnly) {
> +  expectNoChanges("class C { C(); };");
> +  expectNoChanges("class C { C(int i, int j); };");
> +}
> +
> +TEST_F(ExplicitConstructorCheckTest, Basic) {
> +  EXPECT_EQ("class C { explicit C(int i); };",
> +            runCheckOn("class C { C(int i); };"));
> +}
> +
> +TEST_F(ExplicitConstructorCheckTest, DefaultParameters) {
> +  EXPECT_EQ("class C { explicit C(int i, int j = 0); };",
> +            runCheckOn("class C { C(int i, int j = 0); };"));
> +}
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/unittests/clang-tidy/LLVMModuleTest.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/clang-tidy/LLVMModuleTest.cpp?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/clang-tidy/LLVMModuleTest.cpp (added)
> +++ clang-tools-extra/trunk/unittests/clang-tidy/LLVMModuleTest.cpp Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,15 @@
> +#include "ClangTidyTest.h"
> +
> +#include "llvm/LLVMTidyModule.h"
> +
> +namespace clang {
> +namespace tidy {
> +
> +typedef ClangTidyTest<NamespaceCommentCheck> NamespaceCommentCheckTest;
> +
> +TEST_F(NamespaceCommentCheckTest, Basic) {
> +  EXPECT_EQ("namespace i {\n} // namespace i", runCheckOn("namespace i {\n}"));
> +}
> +
> +} // namespace tidy
> +} // namespace clang
> 
> Added: clang-tools-extra/trunk/unittests/clang-tidy/Makefile
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/unittests/clang-tidy/Makefile?rev=187345&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/unittests/clang-tidy/Makefile (added)
> +++ clang-tools-extra/trunk/unittests/clang-tidy/Makefile Mon Jul 29 03:19:24 2013
> @@ -0,0 +1,24 @@
> +##===- unittests/clang-tidy/Makefile -----------------------*- Makefile -*-===##
> +#
> +#                     The LLVM Compiler Infrastructure
> +#
> +# This file is distributed under the University of Illinois Open Source
> +# License. See LICENSE.TXT for details.
> +#
> +##===----------------------------------------------------------------------===##
> +
> +CLANG_LEVEL = ../../../..
> +include $(CLANG_LEVEL)/../../Makefile.config
> +
> +TESTNAME = ClangTidy
> +LINK_COMPONENTS := asmparser bitreader support MC MCParser option
> +USEDLIBS = clangTidy.a clangTidyLLVMModule.a clangTidyGoogleModule.a \
> +	   clangFormat.a clangTooling.a clangFrontend.a clangSerialization.a \
> +	   clangDriver.a clangRewriteFrontend.a clangRewriteCore.a \
> +	   clangParse.a clangSema.a clangAnalysis.a clangAST.a \
> +	   clangASTMatchers.a clangEdit.a clangLex.a clangBasic.a
> +
> +include $(CLANG_LEVEL)/Makefile
> +MAKEFILE_UNITTEST_NO_INCLUDE_COMMON := 1
> +CPP.Flags += -I$(PROJ_SRC_DIR)/../../clang-tidy
> +include $(LLVM_SRC_ROOT)/unittests/Makefile.unittest
> 
> 
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