88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
//===-- AddOverride/AddOverride.cpp - add C++11 override ------------------===//
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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 AddOverrideTransform
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/// class.
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///
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//===----------------------------------------------------------------------===//
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#include "AddOverride.h"
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#include "AddOverrideActions.h"
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#include "AddOverrideMatchers.h"
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#include "clang/Frontend/CompilerInstance.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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namespace cl = llvm::cl;
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static cl::opt<bool> DetectMacros(
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"override-macros",
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cl::desc("Detect and use macros that expand to the 'override' keyword."),
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cl::cat(TransformsOptionsCategory));
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int AddOverrideTransform::apply(const FileOverrides &InputStates,
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const CompilationDatabase &Database,
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const std::vector<std::string> &SourcePaths) {
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ClangTool AddOverrideTool(Database, SourcePaths);
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unsigned AcceptedChanges = 0;
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MatchFinder Finder;
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AddOverrideFixer Fixer(AcceptedChanges, DetectMacros,
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/*Owner=*/ *this);
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Finder.addMatcher(makeCandidateForOverrideAttrMatcher(), &Fixer);
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// Make Fixer available to handleBeginSource().
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this->Fixer = &Fixer;
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setOverrides(InputStates);
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if (int result = AddOverrideTool.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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return 0;
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}
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bool AddOverrideTransform::handleBeginSource(clang::CompilerInstance &CI,
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llvm::StringRef Filename) {
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assert(Fixer != NULL && "Fixer must be set");
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Fixer->setPreprocessor(CI.getPreprocessor());
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return Transform::handleBeginSource(CI, Filename);
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}
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struct AddOverrideFactory : TransformFactory {
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AddOverrideFactory() {
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// if detecting macros is enabled, do not impose requirements on the
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// compiler. It is assumed that the macros use is "C++11-aware", meaning it
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// won't expand to override if the compiler doesn't support the specifier.
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if (!DetectMacros) {
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Since.Clang = Version(3, 0);
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Since.Gcc = Version(4, 7);
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Since.Icc = Version(14);
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Since.Msvc = Version(8);
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}
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}
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Transform *createTransform(const TransformOptions &Opts) LLVM_OVERRIDE {
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return new AddOverrideTransform(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<AddOverrideFactory>
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X("add-override", "Make use of override specifier 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 AddOverrideTransformAnchorSource = 0;
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