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//===--- CloexecCreatCheck.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 "CloexecCreatCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang::tidy::android {
void CloexecCreatCheck::registerMatchers(MatchFinder *Finder) {
auto CharPointerType = hasType(pointerType(pointee(isAnyCharacter())));
auto MODETType = hasType(namedDecl(hasName("mode_t")));
registerMatchersImpl(Finder,
functionDecl(isExternC(), returns(isInteger()),
hasName("creat"),
hasParameter(0, CharPointerType),
hasParameter(1, MODETType)));
}
void CloexecCreatCheck::check(const MatchFinder::MatchResult &Result) {
const std::string &ReplacementText =
(Twine("open (") + getSpellingArg(Result, 0) +
", O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, " +
getSpellingArg(Result, 1) + ")")
.str();
replaceFunc(Result,
"prefer open() to creat() because open() allows O_CLOEXEC",
ReplacementText);
}
} // namespace clang::tidy::android
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