forked from OSchip/llvm-project
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
//===-- AddOverride/AddOverride.cpp - add C++11 override ------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// \brief This file provides the implementation of the AddOverrideTransform
|
|
/// class.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "AddOverride.h"
|
|
#include "AddOverrideActions.h"
|
|
#include "AddOverrideMatchers.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
|
|
using clang::ast_matchers::MatchFinder;
|
|
using namespace clang::tooling;
|
|
using namespace clang;
|
|
namespace cl = llvm::cl;
|
|
|
|
static cl::opt<bool> DetectMacros(
|
|
"override-macros",
|
|
cl::desc("Detect and use macros that expand to the 'override' keyword."),
|
|
cl::cat(TransformsOptionsCategory));
|
|
|
|
int AddOverrideTransform::apply(const CompilationDatabase &Database,
|
|
const std::vector<std::string> &SourcePaths) {
|
|
ClangTool AddOverrideTool(Database, SourcePaths);
|
|
unsigned AcceptedChanges = 0;
|
|
MatchFinder Finder;
|
|
AddOverrideFixer Fixer(AcceptedChanges, DetectMacros,
|
|
/*Owner=*/ *this);
|
|
Finder.addMatcher(makeCandidateForOverrideAttrMatcher(), &Fixer);
|
|
|
|
// Make Fixer available to handleBeginSource().
|
|
this->Fixer = &Fixer;
|
|
|
|
if (int result = AddOverrideTool.run(createActionFactory(Finder).get())) {
|
|
llvm::errs() << "Error encountered during translation.\n";
|
|
return result;
|
|
}
|
|
|
|
setAcceptedChanges(AcceptedChanges);
|
|
return 0;
|
|
}
|
|
|
|
bool AddOverrideTransform::handleBeginSource(clang::CompilerInstance &CI,
|
|
llvm::StringRef Filename) {
|
|
assert(Fixer != nullptr && "Fixer must be set");
|
|
Fixer->setPreprocessor(CI.getPreprocessor());
|
|
return Transform::handleBeginSource(CI, Filename);
|
|
}
|
|
|
|
namespace {
|
|
struct AddOverrideFactory : TransformFactory {
|
|
AddOverrideFactory() {
|
|
// if detecting macros is enabled, do not impose requirements on the
|
|
// compiler. It is assumed that the macros use is "C++11-aware", meaning it
|
|
// won't expand to override if the compiler doesn't support the specifier.
|
|
if (!DetectMacros) {
|
|
Since.Clang = Version(3, 0);
|
|
Since.Gcc = Version(4, 7);
|
|
Since.Icc = Version(14);
|
|
Since.Msvc = Version(8);
|
|
}
|
|
}
|
|
|
|
Transform *createTransform(const TransformOptions &Opts) override {
|
|
return new AddOverrideTransform(Opts);
|
|
}
|
|
};
|
|
} // namespace
|
|
|
|
// Register the factory using this statically initialized variable.
|
|
static TransformFactoryRegistry::Add<AddOverrideFactory>
|
|
X("add-override", "Make use of override specifier where possible");
|
|
|
|
// This anchor is used to force the linker to link in the generated object file
|
|
// and thus register the factory.
|
|
volatile int AddOverrideTransformAnchorSource = 0;
|