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 {
15 namespace tidy {
16 namespace abseil {
17 
18 /// Finds and fixes `absl::Time` subtraction expressions to do subtraction
19 /// in the time domain instead of the numeric domain.
20 ///
21 /// For the user-facing documentation see:
22 /// http://clang.llvm.org/extra/clang-tidy/checks/abseil-time-subtraction.html
23 class TimeSubtractionCheck : public ClangTidyCheck {
24 public:
TimeSubtractionCheck(StringRef Name,ClangTidyContext * Context)25   TimeSubtractionCheck(StringRef Name, ClangTidyContext *Context)
26       : ClangTidyCheck(Name, Context) {}
27   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
28   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
29 
30 private:
31   void emitDiagnostic(const Expr* Node, llvm::StringRef Replacement);
32 };
33 
34 } // namespace abseil
35 } // namespace tidy
36 } // namespace clang
37 
38 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_TIMESUBTRACTIONCHECK_H
39