1 //===--- CloexecDupCheck.cpp - clang-tidy----------------------------------===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "CloexecDupCheck.h" 10 #include "clang/AST/ASTContext.h" 11 #include "clang/ASTMatchers/ASTMatchFinder.h" 12 13 using namespace clang::ast_matchers; 14 15 namespace clang::tidy::android { 16 registerMatchers(MatchFinder * Finder)17void CloexecDupCheck::registerMatchers(MatchFinder *Finder) { 18 registerMatchersImpl(Finder, 19 functionDecl(returns(isInteger()), hasName("dup"), 20 hasParameter(0, hasType(isInteger())))); 21 } 22 check(const MatchFinder::MatchResult & Result)23void CloexecDupCheck::check(const MatchFinder::MatchResult &Result) { 24 std::string ReplacementText = 25 (Twine("fcntl(") + getSpellingArg(Result, 0) + ", F_DUPFD_CLOEXEC)") 26 .str(); 27 28 replaceFunc(Result, 29 "prefer fcntl() to dup() because fcntl() allows F_DUPFD_CLOEXEC", 30 ReplacementText); 31 } 32 33 } // namespace clang::tidy::android 34