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//===--- GoogleTidyModule.cpp - clang-tidy --------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "GoogleTidyModule.h"
#include "../ClangTidy.h"
#include "../ClangTidyModule.h"
#include "../ClangTidyModuleRegistry.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Lex/PPCallbacks.h"
#include "clang/Lex/Preprocessor.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
void ExplicitConstructorCheck::registerMatchers(MatchFinder *Finder) {
Finder->addMatcher(constructorDecl().bind("ctor"), this);
}
void ExplicitConstructorCheck::check(const MatchFinder::MatchResult &Result) {
const CXXConstructorDecl *Ctor =
Result.Nodes.getNodeAs<CXXConstructorDecl>("ctor");
// Do not be confused: isExplicit means 'explicit' keyword is present,
// isImplicit means that it's a compiler-generated constructor.
if (Ctor->isOutOfLine() || Ctor->isExplicit() || Ctor->isImplicit())
return;
if (Ctor->getNumParams() == 0 || Ctor->getMinRequiredArguments() > 1)
return;
SourceLocation Loc = Ctor->getLocation();
diag(Loc, "Single-argument constructors must be explicit")
<< FixItHint::CreateInsertion(Loc, "explicit ");
}
class GoogleModule : public ClangTidyModule {
public:
void
addCheckFactories(ClangTidyCheckFactories &CheckFactories) LLVM_OVERRIDE {
CheckFactories.addCheckFactory(
"google-explicit-constructor",
new ClangTidyCheckFactory<ExplicitConstructorCheck>());
}
};
// Register the GoogleTidyModule using this statically initialized variable.
static ClangTidyModuleRegistry::Add<GoogleModule> X("google-module",
"Adds Google lint checks.");
// This anchor is used to force the linker to link in the generated object file
// and thus register the GoogleModule.
volatile int GoogleModuleAnchorSource = 0;
} // namespace tidy
} // namespace clang
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