clang-tidy/misc/RedundantExpressionCheck.h

0001 //===--- RedundantExpressionCheck.h - clang-tidy-----------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H
0011
0012 #include "../ClangTidyCheck.h"
0013
0014 namespace clang::tidy::misc {
0015
0016 /// The checker detects expressions that are redundant, because they contain
0017 /// ineffective, useless parts.
0018 ///
0019 /// For the user-facing documentation see:
0020 /// http://clang.llvm.org/extra/clang-tidy/checks/misc/redundant-expression.html
0021 class RedundantExpressionCheck : public ClangTidyCheck {
0022 public:
0023   RedundantExpressionCheck(StringRef Name, ClangTidyContext *Context)
0024       : ClangTidyCheck(Name, Context) {}
0025   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0026   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0027
0028 private:
0029   void checkArithmeticExpr(const ast_matchers::MatchFinder::MatchResult &R);
0030   void checkBitwiseExpr(const ast_matchers::MatchFinder::MatchResult &R);
0031   void checkRelationalExpr(const ast_matchers::MatchFinder::MatchResult &R);
0032 };
0033
0034 } // namespace clang::tidy::misc
0035
0036 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H