1 //===--- UnconventionalAssignOperatorCheck.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_ASSIGNOPERATORSIGNATURECHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_ASSIGNOPERATORSIGNATURECHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 
14 namespace clang {
15 namespace tidy {
16 namespace misc {
17 
18 /// Finds declarations of assignment operators with the wrong return and/or
19 /// argument types and definitions with good return type but wrong return
20 /// statements.
21 ///
22 ///   * The return type must be `Class&`.
23 ///   * Works with move-assign and assign by value.
24 ///   * Private and deleted operators are ignored.
25 ///   * The operator must always return ``*this``.
26 ///
27 /// For the user-facing documentation see:
28 /// http://clang.llvm.org/extra/clang-tidy/checks/misc-unconventional-assign-operator.html
29 class UnconventionalAssignOperatorCheck : public ClangTidyCheck {
30 public:
UnconventionalAssignOperatorCheck(StringRef Name,ClangTidyContext * Context)31   UnconventionalAssignOperatorCheck(StringRef Name, ClangTidyContext *Context)
32       : ClangTidyCheck(Name, Context) {}
isLanguageVersionSupported(const LangOptions & LangOpts)33   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
34     return LangOpts.CPlusPlus;
35   }
36   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
37   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
38 };
39 
40 } // namespace misc
41 } // namespace tidy
42 } // namespace clang
43 
44 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_ASSIGNOPERATORSIGNATURECHECK_H
45