1 //===--- ComparisonInTempFailureRetryCheck.h - clang-tidy--------*- C++ -*-===// 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 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H 11 12 #include "../ClangTidyCheck.h" 13 #include "llvm/ADT/SmallVector.h" 14 #include "llvm/ADT/StringRef.h" 15 #include <string> 16 17 namespace clang { 18 namespace tidy { 19 namespace android { 20 21 /// Attempts to catch calls to TEMP_FAILURE_RETRY with a top-level comparison 22 /// operation, like `TEMP_FAILURE_RETRY(read(...) != N)`. In these cases, the 23 /// comparison should go outside of the TEMP_FAILURE_RETRY. 24 /// 25 /// TEMP_FAILURE_RETRY is a macro provided by both glibc and Bionic. 26 class ComparisonInTempFailureRetryCheck : public ClangTidyCheck { 27 public: 28 ComparisonInTempFailureRetryCheck(StringRef Name, ClangTidyContext *Context); 29 void storeOptions(ClangTidyOptions::OptionMap &Opts) override; 30 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 31 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 32 33 private: 34 const std::string RawRetryList; 35 SmallVector<StringRef, 5> RetryMacros; 36 }; 37 38 } // namespace android 39 } // namespace tidy 40 } // namespace clang 41 42 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H 43