clang::tidy::readability::ContainerSizeEmptyCheck Class Reference

Checks whether a call to the size()/length() method can be replaced with a call to empty(). More...

#include <ContainerSizeEmptyCheck.h>

Inheritance diagram for clang::tidy::readability::ContainerSizeEmptyCheck:

Public Member Functions
	ContainerSizeEmptyCheck (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	storeOptions (ClangTidyOptions::OptionMap &Opts) override
std::optional< TraversalKind >	getCheckTraversalKind () const override

Detailed Description

Checks whether a call to the size()/length() method can be replaced with a call to empty().

The emptiness of a container should be checked using the empty() method instead of the size()/length() method. It shows clearer intent to use empty(). Furthermore some containers (for example, a std::forward_list) may implement the empty() method but not implement the size() or length() method. Using empty() whenever possible makes it easier to switch to another container in the future.

Definition at line 26 of file ContainerSizeEmptyCheck.h.

Constructor & Destructor Documentation

ContainerSizeEmptyCheck()

clang::tidy::readability::ContainerSizeEmptyCheck::ContainerSizeEmptyCheck	(	StringRef	Name,
		ClangTidyContext *	Context )

Definition at line 136 of file ContainerSizeEmptyCheck.cpp.

Member Function Documentation

check()

void clang::tidy::readability::ContainerSizeEmptyCheck::check ( const ast_matchers::MatchFinder::MatchResult & Result )

override

Definition at line 247 of file ContainerSizeEmptyCheck.cpp.

References clang::tidy::readability::isBinaryOrTernary().

getCheckTraversalKind()

std::optional< TraversalKind > clang::tidy::readability::ContainerSizeEmptyCheck::getCheckTraversalKind ( ) const

inlineoverride

Definition at line 35 of file ContainerSizeEmptyCheck.h.

isLanguageVersionSupported()

bool clang::tidy::readability::ContainerSizeEmptyCheck::isLanguageVersionSupported ( const LangOptions & LangOpts ) const

inlineoverride

Definition at line 29 of file ContainerSizeEmptyCheck.h.

registerMatchers()

void clang::tidy::readability::ContainerSizeEmptyCheck::registerMatchers ( ast_matchers::MatchFinder * Finder )

override

Definition at line 147 of file ContainerSizeEmptyCheck.cpp.

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

storeOptions()

void clang::tidy::readability::ContainerSizeEmptyCheck::storeOptions ( ClangTidyOptions::OptionMap & Opts )

override

Definition at line 142 of file ContainerSizeEmptyCheck.cpp.

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

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

• ContainerSizeEmptyCheck.h
• ContainerSizeEmptyCheck.cpp