clang-tidy/android/ComparisonInTempFailureRetryCheck.h

0001 //===--- ComparisonInTempFailureRetryCheck.h - clang-tidy--------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H
0011
0012 #include "../ClangTidyCheck.h"
0013 #include "llvm/ADT/SmallVector.h"
0014 #include "llvm/ADT/StringRef.h"
0015 #include <string>
0016
0017 namespace clang::tidy::android {
0018
0019 /// Attempts to catch calls to TEMP_FAILURE_RETRY with a top-level comparison
0020 /// operation, like `TEMP_FAILURE_RETRY(read(...) != N)`. In these cases, the
0021 /// comparison should go outside of the TEMP_FAILURE_RETRY.
0022 ///
0023 /// TEMP_FAILURE_RETRY is a macro provided by both glibc and Bionic.
0024 class ComparisonInTempFailureRetryCheck : public ClangTidyCheck {
0025 public:
0026   ComparisonInTempFailureRetryCheck(StringRef Name, ClangTidyContext *Context);
0027   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
0028   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0029   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0030
0031 private:
0032   const StringRef RawRetryList;
0033   SmallVector<StringRef, 5> RetryMacros;
0034 };
0035
0036 } // namespace clang::tidy::android
0037
0038 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_COMPARISONINTEMPFAILURERETRYCHECK_H