1 //===--- InefficientStringConcatenationCheck.h - clang-tidy-----------*- C++
2 //-*-===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENTSTRINGCONCATENATION_H
11 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENTSTRINGCONCATENATION_H
12 
13 #include "../ClangTidyCheck.h"
14 
15 namespace clang {
16 namespace tidy {
17 namespace performance {
18 
19 /// This check is to warn about the performance overhead arising from
20 /// concatenating strings, using the operator+, instead of operator+=.
21 ///
22 /// For the user-facing documentation see:
23 /// http://clang.llvm.org/extra/clang-tidy/checks/performance-inefficient-string-concatenation.html
24 class InefficientStringConcatenationCheck : public ClangTidyCheck {
25 public:
26   InefficientStringConcatenationCheck(StringRef Name,
27                                       ClangTidyContext *Context);
isLanguageVersionSupported(const LangOptions & LangOpts)28   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
29     return LangOpts.CPlusPlus;
30   }
31   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
32   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
33   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
34 
35 private:
36   const bool StrictMode;
37 };
38 
39 } // namespace performance
40 } // namespace tidy
41 } // namespace clang
42 
43 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENTSTRINGCONCATENATION_H
44