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//===--- TemporaryObjectsCheck.cpp - clang-tidy----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "TemporaryObjectsCheck.h"
#include "../utils/OptionsUtils.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include <string>
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace zircon {
AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef<std::string>, Names) {
std::string QualifiedName = Node.getQualifiedNameAsString();
return llvm::any_of(Names,
[&](StringRef Name) { return QualifiedName == Name; });
}
void TemporaryObjectsCheck::registerMatchers(MatchFinder *Finder) {
// Matcher for default constructors.
Finder->addMatcher(
cxxTemporaryObjectExpr(hasDeclaration(cxxConstructorDecl(hasParent(
cxxRecordDecl(matchesAnyName(Names))))))
.bind("temps"),
this);
// Matcher for user-defined constructors.
Finder->addMatcher(
traverse(TK_AsIs,
cxxConstructExpr(hasParent(cxxFunctionalCastExpr()),
hasDeclaration(cxxConstructorDecl(hasParent(
cxxRecordDecl(matchesAnyName(Names))))))
.bind("temps")),
this);
}
void TemporaryObjectsCheck::check(const MatchFinder::MatchResult &Result) {
if (const auto *D = Result.Nodes.getNodeAs<CXXConstructExpr>("temps"))
diag(D->getLocation(),
"creating a temporary object of type %q0 is prohibited")
<< D->getConstructor()->getParent();
}
void TemporaryObjectsCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
Options.store(Opts, "Names", utils::options::serializeStringList(Names));
}
} // namespace zircon
} // namespace tidy
} // namespace clang
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