1 //===--- RedundantExpressionCheck.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_MISC_REDUNDANT_EXPRESSION_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H 11 12 #include "../ClangTidyCheck.h" 13 14 namespace clang { 15 namespace tidy { 16 namespace misc { 17 18 /// The checker detects expressions that are redundant, because they contain 19 /// ineffective, useless parts. 20 /// 21 /// For the user-facing documentation see: 22 /// http://clang.llvm.org/extra/clang-tidy/checks/misc-redundant-expression.html 23 class RedundantExpressionCheck : public ClangTidyCheck { 24 public: RedundantExpressionCheck(StringRef Name,ClangTidyContext * Context)25 RedundantExpressionCheck(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 checkArithmeticExpr(const ast_matchers::MatchFinder::MatchResult &R); 32 void checkBitwiseExpr(const ast_matchers::MatchFinder::MatchResult &R); 33 void checkRelationalExpr(const ast_matchers::MatchFinder::MatchResult &R); 34 }; 35 36 } // namespace misc 37 } // namespace tidy 38 } // namespace clang 39 40 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H 41