clang-tools 10.0.0

InefficientVectorOperationCheck.h
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1 //===--- InefficientVectorOperationCheck.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_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H
11
12 #include "../ClangTidyCheck.h"
13
14 namespace clang {
15 namespace tidy {
16 namespace performance {
17
18 /// Finds possible inefficient `std::vector` operations (e.g. `push_back`) in
19 /// for loops that may cause unnecessary memory reallocations.
20 ///
21 /// When EnableProto, also finds calls that add element to protobuf repeated
22 /// field without calling Reserve() first.
23 ///
24 /// For the user-facing documentation see:
25 /// http://clang.llvm.org/extra/clang-tidy/checks/performance-inefficient-vector-operation.html
26 class InefficientVectorOperationCheck : public ClangTidyCheck {
27 public:
28 InefficientVectorOperationCheck(StringRef Name, ClangTidyContext *Context);
29 void registerMatchers(ast_matchers::MatchFinder *Finder) override;
30 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
31 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
32
33 private:
34 void AddMatcher(const ast_matchers::DeclarationMatcher &TargetRecordDecl,
35 StringRef VarDeclName, StringRef VarDeclStmtName,
36 const ast_matchers::DeclarationMatcher &AppendMethodDecl,
37 StringRef AppendCallName, ast_matchers::MatchFinder *Finder);
38 const std::vector<std::string> VectorLikeClasses;
39
40 // If true, also check inefficient operations for proto repeated fields.
41 bool EnableProto;
42 };
43
44 } // namespace performance
45 } // namespace tidy
46 } // namespace clang
47
48 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_INEFFICIENT_VECTOR_OPERATION_H
clang::tidy::performance::InefficientVectorOperationCheck::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition: InefficientVectorOperationCheck.cpp:176
clang::tidy::performance::InefficientVectorOperationCheck::storeOptions
void storeOptions(ClangTidyOptions::OptionMap &Opts) override
Should store all options supported by this check with their current values or default values for opti...
Definition: InefficientVectorOperationCheck.cpp:80
clang::tidy::performance::InefficientVectorOperationCheck
Finds possible inefficient std::vector operations (e.g.
Definition: InefficientVectorOperationCheck.h:26
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition: ClangTidyCheck.h:47
Name
static constexpr llvm::StringLiteral Name
Definition: UppercaseLiteralSuffixCheck.cpp:27
clang::tidy::ClangTidyOptions::OptionMap
std::map< std::string, std::string > OptionMap
Definition: ClangTidyOptions.h:97
clang::tidy::performance::InefficientVectorOperationCheck::InefficientVectorOperationCheck
InefficientVectorOperationCheck(StringRef Name, ClangTidyContext *Context)
Definition: InefficientVectorOperationCheck.cpp:73
clang::tidy::performance::InefficientVectorOperationCheck::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
Definition: InefficientVectorOperationCheck.cpp:154
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition: ClangTidyDiagnosticConsumer.h:77