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//===-- UseNullptr/UseNullptr.cpp - C++11 nullptr migration ---------------===//
//
// 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 UseNullptrTransform
/// class.
///
//===----------------------------------------------------------------------===//
#include "UseNullptr.h"
#include "NullptrActions.h"
#include "NullptrMatchers.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Tooling/Refactoring.h"
#include "clang/Tooling/Tooling.h"
using clang::ast_matchers::MatchFinder;
using namespace clang::tooling;
using namespace clang;
int UseNullptrTransform::apply(FileOverrides &InputStates,
const CompilationDatabase &Database,
const std::vector<std::string> &SourcePaths) {
ClangTool UseNullptrTool(Database, SourcePaths);
unsigned AcceptedChanges = 0;
MatchFinder Finder;
NullptrFixer Fixer(getReplacements(), AcceptedChanges, Options().MaxRiskLevel,
/*Owner=*/ *this);
Finder.addMatcher(makeCastSequenceMatcher(), &Fixer);
setOverrides(InputStates);
if (int result = UseNullptrTool.run(createActionFactory(Finder))) {
llvm::errs() << "Error encountered during translation.\n";
return result;
}
setAcceptedChanges(AcceptedChanges);
return 0;
}
struct UseNullptrFactory : TransformFactory {
UseNullptrFactory() {
Since.Clang = Version(3, 0);
Since.Gcc = Version(4, 6);
Since.Icc = Version(12, 1);
Since.Msvc = Version(10);
}
Transform *createTransform(const TransformOptions &Opts) LLVM_OVERRIDE {
return new UseNullptrTransform(Opts);
}
};
// Register the factory using this statically initialized variable.
static TransformFactoryRegistry::Add<UseNullptrFactory>
X("use-nullptr", "Make use of nullptr keyword where possible");
// This anchor is used to force the linker to link in the generated object file
// and thus register the factory.
volatile int UseNullptrTransformAnchorSource = 0;
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