RedundantExpressionCheck.h

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//===--- RedundantExpressionCheck.h - clang-tidy-----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H
 
#include "../ClangTidyCheck.h"
 
namespace clang::tidy::misc {
 
/// The checker detects expressions that are redundant, because they contain
/// ineffective, useless parts.
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/misc/redundant-expression.html
class RedundantExpressionCheck : public ClangTidyCheck {
public:
  RedundantExpressionCheck(StringRef Name, ClangTidyContext *Context)
      : ClangTidyCheck(Name, Context) {}
  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 
private:
  void checkArithmeticExpr(const ast_matchers::MatchFinder::MatchResult &R);
  void checkBitwiseExpr(const ast_matchers::MatchFinder::MatchResult &R);
  void checkRelationalExpr(const ast_matchers::MatchFinder::MatchResult &R);
};
 
} // namespace clang::tidy::misc
 
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H