As opposed to the clang-fixit tool described on
http://clang.llvm.org/docs/ClangTools.html, this adds -fixit option to clang-check. Thus, clang-check can become a general-purpose tool to run clang capitalizing on the info stored in a compilation database. Review: http://llvm-reviews.chandlerc.com/D51 llvm-svn: 165110
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@ -12,6 +12,7 @@ add_clang_executable(clang-check
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target_link_libraries(clang-check
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clangTooling
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clangBasic
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clangRewriteFrontend
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)
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install(TARGETS clang-check
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@ -7,8 +7,8 @@
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a clang-check tool that runs the
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// clang::SyntaxOnlyAction over a number of translation units.
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// This file implements a clang-check tool that runs clang based on the info
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// stored in a compilation database.
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//
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// This tool uses the Clang Tooling infrastructure, see
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// http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
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@ -20,9 +20,13 @@
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#include "clang/Driver/OptTable.h"
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#include "clang/Driver/Options.h"
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#include "clang/Frontend/ASTConsumers.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Rewrite/Frontend/FixItRewriter.h"
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#include "clang/Rewrite/Frontend/FrontendActions.h"
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#include "clang/Tooling/CommonOptionsParser.h"
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#include "clang/Tooling/Tooling.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Path.h"
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using namespace clang::driver;
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using namespace clang::tooling;
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@ -58,6 +62,68 @@ static cl::opt<std::string> ASTDumpFilter(
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"ast-dump-filter",
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cl::desc(Options->getOptionHelpText(options::OPT_ast_dump_filter)));
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static cl::opt<bool> Fixit(
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"fixit",
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cl::desc(Options->getOptionHelpText(options::OPT_fixit)));
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static cl::opt<bool> FixWhatYouCan(
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"fix-what-you-can",
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cl::desc(Options->getOptionHelpText(options::OPT_fix_what_you_can)));
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namespace {
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// FIXME: Move FixItRewriteInPlace from lib/Rewrite/Frontend/FrontendActions.cpp
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// into a header file and reuse that.
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class FixItOptions : public clang::FixItOptions {
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public:
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FixItOptions() {
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FixWhatYouCan = ::FixWhatYouCan;
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}
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std::string RewriteFilename(const std::string& filename, int &fd) {
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assert(llvm::sys::path::is_absolute(filename) &&
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"clang-fixit expects absolute paths only.");
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// We don't need to do permission checking here since clang will diagnose
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// any I/O errors itself.
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fd = -1; // No file descriptor for file.
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return filename;
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}
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};
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/// \brief Subclasses \c clang::FixItRewriter to not count fixed errors/warnings
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/// in the final error counts.
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///
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/// This has the side-effect that clang-check -fixit exits with code 0 on
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/// successfully fixing all errors.
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class FixItRewriter : public clang::FixItRewriter {
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public:
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FixItRewriter(clang::DiagnosticsEngine& Diags,
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clang::SourceManager& SourceMgr,
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const clang::LangOptions& LangOpts,
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clang::FixItOptions* FixItOpts)
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: clang::FixItRewriter(Diags, SourceMgr, LangOpts, FixItOpts) {
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}
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virtual bool IncludeInDiagnosticCounts() const { return false; }
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};
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/// \brief Subclasses \c clang::FixItAction so that we can install the custom
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/// \c FixItRewriter.
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class FixItAction : public clang::FixItAction {
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public:
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virtual bool BeginSourceFileAction(clang::CompilerInstance& CI,
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StringRef Filename) {
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FixItOpts.reset(new FixItOptions);
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Rewriter.reset(new FixItRewriter(CI.getDiagnostics(), CI.getSourceManager(),
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CI.getLangOpts(), FixItOpts.get()));
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return true;
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}
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};
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} // namespace
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// Anonymous namespace here causes problems with gcc <= 4.4 on MacOS 10.6.
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// "Non-global symbol: ... can't be a weak_definition"
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namespace clang_check {
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@ -76,9 +142,11 @@ public:
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}
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int main(int argc, const char **argv) {
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clang_check::ClangCheckActionFactory Factory;
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CommonOptionsParser OptionsParser(argc, argv);
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ClangTool Tool(OptionsParser.GetCompilations(),
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OptionsParser.GetSourcePathList());
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if (Fixit)
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return Tool.run(newFrontendActionFactory<FixItAction>());
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clang_check::ClangCheckActionFactory Factory;
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return Tool.run(newFrontendActionFactory(&Factory));
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}
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@ -18,7 +18,7 @@ include $(CLANG_LEVEL)/../../Makefile.config
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LINK_COMPONENTS := $(TARGETS_TO_BUILD) asmparser support mc
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USEDLIBS = clangFrontend.a clangSerialization.a clangDriver.a \
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clangTooling.a clangParse.a clangSema.a clangAnalysis.a \
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clangEdit.a clangAST.a clangLex.a clangBasic.a
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clangEdit.a clangAST.a clangLex.a clangBasic.a \
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clangRewriteFrontend.a
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include $(CLANG_LEVEL)/Makefile
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