clang-tidy/abseil/StringFindStartswithCheck.h

0001 //===--- StringFindStartswithCheck.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_ABSEIL_STRINGFINDSTARTSWITHCHECK_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_STRINGFINDSTARTSWITHCHECK_H
0011
0012 #include "../ClangTidyCheck.h"
0013 #include "../utils/IncludeInserter.h"
0014 #include "clang/ASTMatchers/ASTMatchFinder.h"
0015
0016 #include <memory>
0017 #include <string>
0018 #include <vector>
0019
0020 namespace clang::tidy::abseil {
0021
0022 // Find string.find(...) == 0 comparisons and suggest replacing with StartsWith.
0023 // FIXME(niko): Add similar check for EndsWith
0024 class StringFindStartswithCheck : public ClangTidyCheck {
0025 public:
0026   using ClangTidyCheck::ClangTidyCheck;
0027   StringFindStartswithCheck(StringRef Name, ClangTidyContext *Context);
0028   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
0029                            Preprocessor *ModuleExpanderPP) override;
0030   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0031   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0032   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
0033   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
0034     // Prefer modernize-use-starts-ends-with when C++20 is available.
0035     return LangOpts.CPlusPlus && !LangOpts.CPlusPlus20;
0036   }
0037
0038 private:
0039   const std::vector<StringRef> StringLikeClasses;
0040   utils::IncludeInserter IncludeInserter;
0041   const StringRef AbseilStringsMatchHeader;
0042 };
0043
0044 } // namespace clang::tidy::abseil
0045
0046 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_STRINGFINDSTARTSWITHCHECK_H