clang-tools-extra/clang-tidy/performance/InefficientStringConcatenationCheck.h

   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::tidy::performance {
  16
  17 /// This check is to warn about the performance overhead arising from
  18 /// concatenating strings, using the operator+, instead of operator+=.
  19 ///
  20 /// For the user-facing documentation see:
  21 /// http://clang.llvm.org/extra/clang-tidy/checks/performance/inefficient-string-concatenation.html
  22 class InefficientStringConcatenationCheck : public ClangTidyCheck {
  23 public:
  24   InefficientStringConcatenationCheck(StringRef Name,
  25                                       ClangTidyContext *Context);
  26   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
  27     return LangOpts.CPlusPlus;
  28   }
  29   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  30   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  31   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  32
  33 private:
  34   const bool StrictMode;
  35 };
  36
  37 } // namespace clang::tidy::performance
  38
  39 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENTSTRINGCONCATENATION_H