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);
isLanguageVersionSupported(const LangOptions & LangOpts)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
49