| //===--- InefficientVectorOperationCheck.h - clang-tidy----------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H |
| #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H |
| |
| #include "../ClangTidyCheck.h" |
| |
| namespace clang { |
| namespace tidy { |
| namespace performance { |
| |
| /// Finds possible inefficient `std::vector` operations (e.g. `push_back`) in |
| /// for loops that may cause unnecessary memory reallocations. |
| /// |
| /// When EnableProto, also finds calls that add element to protobuf repeated |
| /// field without calling Reserve() first. |
| /// |
| /// For the user-facing documentation see: |
| /// http://clang.llvm.org/extra/clang-tidy/checks/performance-inefficient-vector-operation.html |
| class InefficientVectorOperationCheck : public ClangTidyCheck { |
| public: |
| InefficientVectorOperationCheck(StringRef Name, ClangTidyContext *Context); |
| bool isLanguageVersionSupported(const LangOptions &LangOpts) const override{ |
| return LangOpts.CPlusPlus; |
| } |
| void registerMatchers(ast_matchers::MatchFinder *Finder) override; |
| void check(const ast_matchers::MatchFinder::MatchResult &Result) override; |
| void storeOptions(ClangTidyOptions::OptionMap &Opts) override; |
| |
| private: |
| void addMatcher(const ast_matchers::DeclarationMatcher &TargetRecordDecl, |
| StringRef VarDeclName, StringRef VarDeclStmtName, |
| const ast_matchers::DeclarationMatcher &AppendMethodDecl, |
| StringRef AppendCallName, ast_matchers::MatchFinder *Finder); |
| const std::vector<std::string> VectorLikeClasses; |
| |
| // If true, also check inefficient operations for proto repeated fields. |
| bool EnableProto; |
| }; |
| |
| } // namespace performance |
| } // namespace tidy |
| } // namespace clang |
| |
| #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H |