37 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "CloexecCreatCheck.h"10#include "clang/ASTMatchers/ASTMatchFinder.h"11 12using namespace clang::ast_matchers;13 14namespace clang::tidy::android {15 16void CloexecCreatCheck::registerMatchers(MatchFinder *Finder) {17 auto CharPointerType = hasType(pointerType(pointee(isAnyCharacter())));18 auto MODETType = hasType(namedDecl(hasName("mode_t")));19 registerMatchersImpl(Finder, functionDecl(isExternC(), returns(isInteger()),20 hasName("creat"),21 hasParameter(0, CharPointerType),22 hasParameter(1, MODETType)));23}24 25void CloexecCreatCheck::check(const MatchFinder::MatchResult &Result) {26 const std::string &ReplacementText =27 (Twine("open (") + getSpellingArg(Result, 0) +28 ", O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, " +29 getSpellingArg(Result, 1) + ")")30 .str();31 replaceFunc(Result,32 "prefer open() to creat() because open() allows O_CLOEXEC",33 ReplacementText);34}35 36} // namespace clang::tidy::android37