[cfe-commits] [clang-tools-extra] r161886 - in /clang-tools-extra/trunk: CMakeLists.txt Makefile toolTemplate/ toolTemplate/CMakeLists.txt toolTemplate/Makefile toolTemplate/ToolTemplate.cpp

[Manuel Klimek]

On Tue, Aug 14, 2012 at 8:53 PM, Marshall Clow <mclow at qualcomm.com> wrote:
> Author: marshall
> Date: Tue Aug 14 13:53:39 2012
> New Revision: 161886
>
> URL: http://llvm.org/viewvc/llvm-project?rev=161886&view=rev
> Log:
> Added a tool template to make creating new tools simpler
>
> Added:
>     clang-tools-extra/trunk/toolTemplate/
>     clang-tools-extra/trunk/toolTemplate/CMakeLists.txt
>     clang-tools-extra/trunk/toolTemplate/Makefile
>     clang-tools-extra/trunk/toolTemplate/ToolTemplate.cpp
> Modified:
>     clang-tools-extra/trunk/CMakeLists.txt
>     clang-tools-extra/trunk/Makefile
>
> Modified: clang-tools-extra/trunk/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/CMakeLists.txt?rev=161886&r1=161885&r2=161886&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/CMakeLists.txt (original)
> +++ clang-tools-extra/trunk/CMakeLists.txt Tue Aug 14 13:53:39 2012
> @@ -1,4 +1,5 @@
>  add_subdirectory(remove-cstr-calls)
> +add_subdirectory(toolTemplate)
>
>  # 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=161886&r1=161885&r2=161886&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/Makefile (original)
> +++ clang-tools-extra/trunk/Makefile Tue Aug 14 13:53:39 2012
> @@ -11,7 +11,7 @@
>
>  include $(CLANG_LEVEL)/../../Makefile.config
>
> -PARALLEL_DIRS := remove-cstr-calls
> +PARALLEL_DIRS := remove-cstr-calls toolTemplate
>
>  include $(CLANG_LEVEL)/Makefile
>
>
> Added: clang-tools-extra/trunk/toolTemplate/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/toolTemplate/CMakeLists.txt?rev=161886&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/toolTemplate/CMakeLists.txt (added)
> +++ clang-tools-extra/trunk/toolTemplate/CMakeLists.txt Tue Aug 14 13:53:39 2012
> @@ -0,0 +1,6 @@
> +add_clang_executable(tool-template
> +  ToolTemplate.cpp
> +  )
> +
> +target_link_libraries(tool-template
> +  clangEdit clangTooling clangBasic clangAST clangASTMatchers)
>
> Added: clang-tools-extra/trunk/toolTemplate/Makefile
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/toolTemplate/Makefile?rev=161886&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/toolTemplate/Makefile (added)
> +++ clang-tools-extra/trunk/toolTemplate/Makefile Tue Aug 14 13:53:39 2012
> @@ -0,0 +1,24 @@
> +##===-------- tools/toolTemplate/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 = tool-template
> +NO_INSTALL = 1
> +
> +# No plugins, optimize startup time.
> +TOOL_NO_EXPORTS = 1
> +
> +include $(CLANG_LEVEL)/../../Makefile.config
> +LINK_COMPONENTS := $(TARGETS_TO_BUILD) asmparser support mc
> +USEDLIBS = clangTooling.a clangFrontend.a clangSerialization.a clangDriver.a \
> +                                        clangRewrite.a clangParse.a clangSema.a clangAnalysis.a \
> +                                        clangAST.a clangASTMatchers.a clangEdit.a clangLex.a clangBasic.a
> +
> +include $(CLANG_LEVEL)/Makefile
>
> Added: clang-tools-extra/trunk/toolTemplate/ToolTemplate.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/toolTemplate/ToolTemplate.cpp?rev=161886&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/toolTemplate/ToolTemplate.cpp (added)
> +++ clang-tools-extra/trunk/toolTemplate/ToolTemplate.cpp Tue Aug 14 13:53:39 2012
> @@ -0,0 +1,105 @@
> +//===- tools/extra/RefactoringTemplate.cpp - Template for refactoring tool ===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +//
> +//  This file implements an empty refactoring tool using the clang tooling.
> +//  The goal is to lower the "barrier to entry" for writing refactoring tools.
> +//
> +//  Usage:
> +//  refactoringTemplate <cmake-output-dir> <file1> <file2> ...
> +//
> +//  Where <cmake-output-dir> is a CMake build directory in which a file named
> +//  compile_commands.json exists (enable -DCMAKE_EXPORT_COMPILE_COMMANDS in
> +//  CMake to get this output).
> +//
> +//  <file1> ... specify the paths of files in the CMake source tree. This path
> +//  is looked up in the compile command database. If the path of a file is
> +//  absolute, it needs to point into CMake's source tree. If the path is
> +//  relative, the current working directory needs to be in the CMake source
> +//  tree and the file must be in a subdirectory of the current working
> +//  directory. "./" prefixes in the relative files will be automatically
> +//  removed, but the rest of a relative path must be a suffix of a path in
> +//  the compile command line database.
> +//
> +//  For example, to use refactoringTemplate on all files in a subtree of the
> +//  source tree, use:
> +//
> +//    /path/in/subtree $ find . -name '*.cpp'|
> +//        xargs refactoringTemplate /path/to/build
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "clang/ASTMatchers/ASTMatchers.h"
> +#include "clang/ASTMatchers/ASTMatchFinder.h"
> +#include "clang/Basic/SourceManager.h"
> +#include "clang/Frontend/FrontendActions.h"
> +#include "clang/Lex/Lexer.h"
> +#include "clang/Tooling/CompilationDatabase.h"
> +#include "clang/Tooling/Refactoring.h"
> +#include "clang/Tooling/Tooling.h"
> +#include "llvm/ADT/OwningPtr.h"
> +#include "llvm/Support/CommandLine.h"
> +#include "llvm/Support/MemoryBuffer.h"
> +
> +using namespace clang;
> +using namespace clang::ast_matchers;
> +using namespace clang::tooling;
> +using namespace llvm;
> +
> +namespace {
> +class TemplateCallback : public MatchFinder::MatchCallback {
> + public:
> +  TemplateCallback(Replacements *Replace) : Replace(Replace) {}
> +
> +  virtual void run(const MatchFinder::MatchResult &Result) {
> +//  TODO: This routine will get called for each thing that the matchers find.
> +//  At this point, you can examine the match, and do whatever you want,
> +//  including replacing the matched text with other text
> +  }
> +
> + private:
> +  Replacements *Replace;

This triggers an unused-private-field warning... Do we want to (void)
use it in run()?

> +};
> +} // end anonymous namespace
> +
> +// Set up the command line options
> +cl::opt<std::string> BuildPath(
> +  cl::Positional,
> +  cl::desc("<build-path>"));
> +
> +cl::list<std::string> SourcePaths(
> +  cl::Positional,
> +  cl::desc("<source0> [... <sourceN>]"),
> +  cl::OneOrMore);
> +
> +int main(int argc, const char **argv) {
> +  llvm::OwningPtr<CompilationDatabase> Compilations(
> +        FixedCompilationDatabase::loadFromCommandLine(argc, argv));
> +  cl::ParseCommandLineOptions(argc, argv);
> +  if (!Compilations) {  // Couldn't find a compilation DB from the command line
> +    std::string ErrorMessage;
> +    Compilations.reset(
> +      !BuildPath.empty() ?
> +        CompilationDatabase::autoDetectFromDirectory(BuildPath, ErrorMessage) :
> +        CompilationDatabase::autoDetectFromSource(SourcePaths[0], ErrorMessage)
> +      );
> +
> +//  Still no compilation DB? - bail.
> +    if (!Compilations)
> +      llvm::report_fatal_error(ErrorMessage);
> +    }
> +  RefactoringTool Tool(*Compilations, SourcePaths);
> +  ast_matchers::MatchFinder Finder;
> +  TemplateCallback Callback(&Tool.getReplacements());
> +
> +// TODO: Put your matchers here.
> +// Use Finder.addMatcher(...) to define the patterns in the AST that you
> +// want to match against. You are not limited to just one matcher!
> +
> +  return Tool.run(newFrontendActionFactory(&Finder));
> +}
>
>
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