clang-tidy/modernize/UseEmplaceCheck.h

0001 //===--- UseEmplaceCheck.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_MODERNIZE_USE_EMPLACE_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_EMPLACE_H
0011
0012 #include "../ClangTidyCheck.h"
0013 #include <string>
0014 #include <vector>
0015
0016 namespace clang::tidy::modernize {
0017
0018 /// This check looks for cases when inserting new element into std::vector but
0019 /// the element is constructed temporarily.
0020 /// It replaces those calls for emplace_back of arguments passed to
0021 /// constructor of temporary object.
0022 ///
0023 /// For the user-facing documentation see:
0024 /// http://clang.llvm.org/extra/clang-tidy/checks/modernize/use-emplace.html
0025 class UseEmplaceCheck : public ClangTidyCheck {
0026 public:
0027   UseEmplaceCheck(StringRef Name, ClangTidyContext *Context);
0028   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
0029     return LangOpts.CPlusPlus11;
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 bool IgnoreImplicitConstructors;
0037   const std::vector<StringRef> ContainersWithPushBack;
0038   const std::vector<StringRef> ContainersWithPush;
0039   const std::vector<StringRef> ContainersWithPushFront;
0040   const std::vector<StringRef> SmartPointers;
0041   const std::vector<StringRef> TupleTypes;
0042   const std::vector<StringRef> TupleMakeFunctions;
0043   const std::vector<StringRef> EmplacyFunctions;
0044 };
0045
0046 } // namespace clang::tidy::modernize
0047
0048 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_EMPLACE_H