1 //===--- FasterStringFindCheck.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_PERFORMANCE_FASTER_STRING_FIND_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_FASTER_STRING_FIND_H 11 12 #include "../ClangTidyCheck.h" 13 14 #include <string> 15 #include <vector> 16 17 namespace clang { 18 namespace tidy { 19 namespace performance { 20 21 /// Optimize calls to std::string::find() and friends when the needle passed is 22 /// a single character string literal. 23 /// The character literal overload is more efficient. 24 /// 25 /// For the user-facing documentation see: 26 /// http://clang.llvm.org/extra/clang-tidy/checks/performance-faster-string-find.html 27 class FasterStringFindCheck : public ClangTidyCheck { 28 public: 29 FasterStringFindCheck(StringRef Name, ClangTidyContext *Context); isLanguageVersionSupported(const LangOptions & LangOpts)30 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override{ 31 return LangOpts.CPlusPlus; 32 } 33 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 34 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 35 void storeOptions(ClangTidyOptions::OptionMap &Opts) override; 36 37 private: 38 const std::vector<std::string> StringLikeClasses; 39 }; 40 41 } // namespace performance 42 } // namespace tidy 43 } // namespace clang 44 45 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_FASTER_STRING_FIND_H 46