clang-tools-extra/clang-tidy/abseil/TimeSubtractionCheck.h

   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:
  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