1 //===--- TimeSubtractionCheck.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_ABSEIL_TIMESUBTRACTIONCHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_TIMESUBTRACTIONCHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 
14 namespace clang::tidy::abseil {
15 
16 /// Finds and fixes `absl::Time` subtraction expressions to do subtraction
17 /// in the time domain instead of the numeric domain.
18 ///
19 /// For the user-facing documentation see:
20 /// http://clang.llvm.org/extra/clang-tidy/checks/abseil/time-subtraction.html
21 class TimeSubtractionCheck : public ClangTidyCheck {
22 public:
TimeSubtractionCheck(StringRef Name,ClangTidyContext * Context)23   TimeSubtractionCheck(StringRef Name, ClangTidyContext *Context)
24       : ClangTidyCheck(Name, Context) {}
25   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
26   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
27 
28 private:
29   void emitDiagnostic(const Expr* Node, llvm::StringRef Replacement);
30 };
31 
32 } // namespace clang::tidy::abseil
33 
34 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_TIMESUBTRACTIONCHECK_H
35