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