clang::tidy::performance::UnnecessaryValueParamCheck Class Reference

A check that flags value parameters of expensive to copy types that can safely be converted to const references. More...

#include <UnnecessaryValueParamCheck.h>

Inheritance diagram for clang::tidy::performance::UnnecessaryValueParamCheck:

Public Member Functions
	UnnecessaryValueParamCheck (StringRef Name, ClangTidyContext *Context)
bool	isLanguageVersionSupported (const LangOptions &LangOpts) const override
void	registerMatchers (ast_matchers::MatchFinder *Finder) override
void	check (const ast_matchers::MatchFinder::MatchResult &Result) override
void	registerPPCallbacks (const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP) override
void	storeOptions (ClangTidyOptions::OptionMap &Opts) override
void	onEndOfTranslationUnit () override

Protected Member Functions
virtual void	handleMoveFix (const ParmVarDecl &Param, const DeclRefExpr &CopyArgument, ASTContext &Context)
virtual void	handleConstRefFix (const FunctionDecl &Function, const ParmVarDecl &Param, ASTContext &Context)

Detailed Description

A check that flags value parameters of expensive to copy types that can safely be converted to const references.

For the user-facing documentation see: https://clang.llvm.org/extra/clang-tidy/checks/performance/unnecessary-value-param.html

Definition at line 23 of file UnnecessaryValueParamCheck.h.

Constructor & Destructor Documentation

UnnecessaryValueParamCheck()

clang::tidy::performance::UnnecessaryValueParamCheck::UnnecessaryValueParamCheck	(	StringRef	Name,
		ClangTidyContext *	Context )

Definition at line 42 of file UnnecessaryValueParamCheck.cpp.

Member Function Documentation

check()

void clang::tidy::performance::UnnecessaryValueParamCheck::check ( const ast_matchers::MatchFinder::MatchResult & Result )

override

Definition at line 72 of file UnnecessaryValueParamCheck.cpp.

References clang::tidy::utils::decl_ref_expr::allDeclRefExprs(), handleConstRefFix(), handleMoveFix(), clang::tidy::performance::hasLoopStmtAncestor(), clang::tidy::utils::type_traits::hasNonTrivialMoveAssignment(), clang::tidy::utils::type_traits::hasNonTrivialMoveConstructor(), clang::tidy::utils::decl_ref_expr::isCopyAssignmentArgument(), and clang::tidy::utils::decl_ref_expr::isCopyConstructorArgument().

handleConstRefFix()

void clang::tidy::performance::UnnecessaryValueParamCheck::handleConstRefFix ( const FunctionDecl & Function, const ParmVarDecl & Param, ASTContext & Context )

protectedvirtual

Definition at line 132 of file UnnecessaryValueParamCheck.cpp.

References clang::tidy::utils::fixit::addQualifierToVarDecl(), clang::tidy::utils::fixit::changeVarDeclToReference(), Fix(), and clang::tidy::performance::paramNameOrIndex().

Referenced by check().

handleMoveFix()

void clang::tidy::performance::UnnecessaryValueParamCheck::handleMoveFix ( const ParmVarDecl & Param, const DeclRefExpr & CopyArgument, ASTContext & Context )

protectedvirtual

Definition at line 171 of file UnnecessaryValueParamCheck.cpp.

Referenced by check().

isLanguageVersionSupported()

bool clang::tidy::performance::UnnecessaryValueParamCheck::isLanguageVersionSupported ( const LangOptions & LangOpts ) const

inlineoverride

Definition at line 26 of file UnnecessaryValueParamCheck.h.

onEndOfTranslationUnit()

void clang::tidy::performance::UnnecessaryValueParamCheck::onEndOfTranslationUnit ( )

override

Definition at line 128 of file UnnecessaryValueParamCheck.cpp.

registerMatchers()

void clang::tidy::performance::UnnecessaryValueParamCheck::registerMatchers ( ast_matchers::MatchFinder * Finder )

override

Definition at line 52 of file UnnecessaryValueParamCheck.cpp.

References clang::tidy::matchers::matchesAnyListedName().

registerPPCallbacks()

void clang::tidy::performance::UnnecessaryValueParamCheck::registerPPCallbacks ( const SourceManager & SM, Preprocessor * PP, Preprocessor * ModuleExpanderPP )

override

Definition at line 115 of file UnnecessaryValueParamCheck.cpp.

storeOptions()

void clang::tidy::performance::UnnecessaryValueParamCheck::storeOptions ( ClangTidyOptions::OptionMap & Opts )

override

Definition at line 120 of file UnnecessaryValueParamCheck.cpp.

References clang::tidy::utils::options::serializeStringList().

---

The documentation for this class was generated from the following files:

• UnnecessaryValueParamCheck.h
• UnnecessaryValueParamCheck.cpp