clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.h

   1 //===--- UseEmplaceCheck.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_MODERNIZE_USE_EMPLACE_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_EMPLACE_H
  11
  12 #include "../ClangTidyCheck.h"
  13 #include <string>
  14 #include <vector>
  15
  16 namespace clang::tidy::modernize {
  17
  18 /// This check looks for cases when inserting new element into std::vector but
  19 /// the element is constructed temporarily.
  20 /// It replaces those calls for emplace_back of arguments passed to
  21 /// constructor of temporary object.
  22 ///
  23 /// For the user-facing documentation see:
  24 /// http://clang.llvm.org/extra/clang-tidy/checks/modernize/use-emplace.html
  25 class UseEmplaceCheck : public ClangTidyCheck {
  26 public:
  27   UseEmplaceCheck(StringRef Name, ClangTidyContext *Context);
  28   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
  29     return LangOpts.CPlusPlus11;
  30   }
  31   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  32   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  33   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  34
  35 private:
  36   const bool IgnoreImplicitConstructors;
  37   const std::vector<StringRef> ContainersWithPushBack;
  38   const std::vector<StringRef> ContainersWithPush;
  39   const std::vector<StringRef> ContainersWithPushFront;
  40   const std::vector<StringRef> SmartPointers;
  41   const std::vector<StringRef> TupleTypes;
  42   const std::vector<StringRef> TupleMakeFunctions;
  43   const std::vector<StringRef> EmplacyFunctions;
  44 };
  45
  46 } // namespace clang::tidy::modernize
  47
  48 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_EMPLACE_H