1 //===--- StringFindStartswithCheck.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_ABSEIL_STRINGFINDSTARTSWITHCHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_STRINGFINDSTARTSWITHCHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 #include "../utils/IncludeInserter.h"
14 #include "clang/ASTMatchers/ASTMatchFinder.h"
15 
16 #include <memory>
17 #include <string>
18 #include <vector>
19 
20 namespace clang::tidy::abseil {
21 
22 // Find string.find(...) == 0 comparisons and suggest replacing with StartsWith.
23 // FIXME(niko): Add similar check for EndsWith
24 class StringFindStartswithCheck : public ClangTidyCheck {
25 public:
26   using ClangTidyCheck::ClangTidyCheck;
27   StringFindStartswithCheck(StringRef Name, ClangTidyContext *Context);
28   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
29                            Preprocessor *ModuleExpanderPP) override;
30   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
31   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
32   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
isLanguageVersionSupported(const LangOptions & LangOpts)33   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
34     // Prefer modernize-use-starts-ends-with when C++20 is available.
35     return LangOpts.CPlusPlus && !LangOpts.CPlusPlus20;
36   }
37 
38 private:
39   const std::vector<StringRef> StringLikeClasses;
40   utils::IncludeInserter IncludeInserter;
41   const StringRef AbseilStringsMatchHeader;
42 };
43 
44 } // namespace clang::tidy::abseil
45 
46 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ABSEIL_STRINGFINDSTARTSWITHCHECK_H
47