forked from OSchip/llvm-project
92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
//===-- LoopConvert/LoopConvert.cpp - C++11 for-loop migration ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file provides the implementation of the LoopConvertTransform
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/// class.
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///
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//===----------------------------------------------------------------------===//
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#include "LoopConvert.h"
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#include "LoopActions.h"
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#include "LoopMatchers.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Tooling/Refactoring.h"
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#include "clang/Tooling/Tooling.h"
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using clang::ast_matchers::MatchFinder;
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using namespace clang::tooling;
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using namespace clang;
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int LoopConvertTransform::apply(const CompilationDatabase &Database,
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const std::vector<std::string> &SourcePaths) {
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ClangTool LoopTool(Database, SourcePaths);
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unsigned AcceptedChanges = 0;
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unsigned DeferredChanges = 0;
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unsigned RejectedChanges = 0;
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TUInfo.reset(new TUTrackingInfo);
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MatchFinder Finder;
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LoopFixer ArrayLoopFixer(*TUInfo, &AcceptedChanges, &DeferredChanges,
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&RejectedChanges, Options().MaxRiskLevel, LFK_Array,
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/*Owner=*/ *this);
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Finder.addMatcher(makeArrayLoopMatcher(), &ArrayLoopFixer);
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LoopFixer IteratorLoopFixer(*TUInfo, &AcceptedChanges, &DeferredChanges,
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&RejectedChanges, Options().MaxRiskLevel,
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LFK_Iterator, /*Owner=*/ *this);
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Finder.addMatcher(makeIteratorLoopMatcher(), &IteratorLoopFixer);
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LoopFixer PseudoarrrayLoopFixer(*TUInfo, &AcceptedChanges, &DeferredChanges,
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&RejectedChanges, Options().MaxRiskLevel,
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LFK_PseudoArray, /*Owner=*/ *this);
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Finder.addMatcher(makePseudoArrayLoopMatcher(), &PseudoarrrayLoopFixer);
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if (int result = LoopTool.run(createActionFactory(Finder))) {
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llvm::errs() << "Error encountered during translation.\n";
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return result;
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}
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setAcceptedChanges(AcceptedChanges);
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setRejectedChanges(RejectedChanges);
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setDeferredChanges(DeferredChanges);
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return 0;
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}
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bool
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LoopConvertTransform::handleBeginSource(clang::CompilerInstance &CI,
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llvm::StringRef Filename) {
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// Reset and initialize per-TU tracking structures.
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TUInfo->reset();
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return Transform::handleBeginSource(CI, Filename);
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}
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struct LoopConvertFactory : TransformFactory {
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LoopConvertFactory() {
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Since.Clang = Version(3, 0);
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Since.Gcc = Version(4, 6);
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Since.Icc = Version(13);
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Since.Msvc = Version(11);
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}
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Transform *createTransform(const TransformOptions &Opts) LLVM_OVERRIDE {
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return new LoopConvertTransform(Opts);
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}
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};
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// Register the factory using this statically initialized variable.
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static TransformFactoryRegistry::Add<LoopConvertFactory>
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X("loop-convert", "Make use of range-based for loops where possible");
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// This anchor is used to force the linker to link in the generated object file
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// and thus register the factory.
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volatile int LoopConvertTransformAnchorSource = 0;
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