clang-tidy/performance/FasterStringFindCheck.h

0001 //===--- FasterStringFindCheck.h - clang-tidy--------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_FASTER_STRING_FIND_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_FASTER_STRING_FIND_H
0011
0012 #include "../ClangTidyCheck.h"
0013
0014 #include <string>
0015 #include <vector>
0016
0017 namespace clang::tidy::performance {
0018
0019 /// Optimize calls to std::string::find() and friends when the needle passed is
0020 /// a single character string literal.
0021 /// The character literal overload is more efficient.
0022 ///
0023 /// For the user-facing documentation see:
0024 /// http://clang.llvm.org/extra/clang-tidy/checks/performance/faster-string-find.html
0025 class FasterStringFindCheck : public ClangTidyCheck {
0026 public:
0027   FasterStringFindCheck(StringRef Name, ClangTidyContext *Context);
0028   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override{
0029     return LangOpts.CPlusPlus;
0030   }
0031   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0032   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0033   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
0034
0035 private:
0036   const std::vector<StringRef> StringLikeClasses;
0037 };
0038
0039 } // namespace clang::tidy::performance
0040
0041 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_FASTER_STRING_FIND_H