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::tidy::misc {
15 
16 /// The checker detects expressions that are redundant, because they contain
17 /// ineffective, useless parts.
18 ///
19 /// For the user-facing documentation see:
20 /// http://clang.llvm.org/extra/clang-tidy/checks/misc/redundant-expression.html
21 class RedundantExpressionCheck : public ClangTidyCheck {
22 public:
RedundantExpressionCheck(StringRef Name,ClangTidyContext * Context)23   RedundantExpressionCheck(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 checkArithmeticExpr(const ast_matchers::MatchFinder::MatchResult &R);
30   void checkBitwiseExpr(const ast_matchers::MatchFinder::MatchResult &R);
31   void checkRelationalExpr(const ast_matchers::MatchFinder::MatchResult &R);
32 };
33 
34 } // namespace clang::tidy::misc
35 
36 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_REDUNDANT_EXPRESSION_H
37