CheckUnusedFunctions Class Reference

Check for functions never called. More...

#include <checkunusedfunctions.h>

Classes
class	FunctionDecl
struct	FunctionUsage

Public Member Functions
	CheckUnusedFunctions ()=default
void	parseTokens (const Tokenizer &tokenizer, const Settings &settings)
std::string	analyzerInfo () const
bool	check (const Settings &settings, ErrorLogger &errorLogger) const
void	updateFunctionData (const CheckUnusedFunctions &check)

Static Public Member Functions
static void	analyseWholeProgram (const Settings &settings, ErrorLogger &errorLogger, const std::string &buildDir)
static void	getErrorMessages (ErrorLogger &errorLogger)

Static Private Member Functions
static void	unusedFunctionError (ErrorLogger &errorLogger, const std::string &filename, unsigned int fileIndex, unsigned int lineNumber, const std::string &funcname)

Private Attributes
std::unordered_map< std::string, FunctionUsage >	mFunctions
std::list< FunctionDecl >	mFunctionDecl
std::set< std::string >	mFunctionCalls

Friends
class	TestSuppressions
class	TestSingleExecutorBase
class	TestProcessExecutorBase
class	TestThreadExecutorBase
class	TestUnusedFunctions

Detailed Description

Check for functions never called.

Definition at line 40 of file checkunusedfunctions.h.

Constructor & Destructor Documentation

CheckUnusedFunctions()

CheckUnusedFunctions::CheckUnusedFunctions ( )

default

Member Function Documentation

analyseWholeProgram()

void CheckUnusedFunctions::analyseWholeProgram ( const Settings &  settings, ErrorLogger &  errorLogger, const std::string &  buildDir  )

static

Definition at line 393 of file checkunusedfunctions.cpp.

References error, Library::isentrypoint(), isOperatorFunction(), Settings::library, stripTemplateParameters(), and unusedFunctionError().

Referenced by CppCheck::analyseWholeProgram().

analyzerInfo()

std::string CheckUnusedFunctions::analyzerInfo

(

)

const

Definition at line 370 of file checkunusedfunctions.cpp.

References mFunctionCalls, mFunctionDecl, and ErrorLogger::toxml().

Referenced by CppCheck::checkNormalTokens().

check()

bool CheckUnusedFunctions::check	(	const Settings &	settings,
		ErrorLogger &	errorLogger
	)		const

Todo:

add error message "function is only used in <file> it can be static"

Definition at line 316 of file checkunusedfunctions.cpp.

References CheckUnusedFunctions::FunctionUsage::fileIndex, CheckUnusedFunctions::FunctionUsage::filename, Library::isentrypoint(), isOperatorFunction(), Settings::library, CheckUnusedFunctions::FunctionUsage::lineNumber, logChecker, mFunctions, unusedFunctionError(), CheckUnusedFunctions::FunctionUsage::usedOtherFile, and CheckUnusedFunctions::FunctionUsage::usedSameFile.

Referenced by updateFunctionData().

getErrorMessages()

static void CheckUnusedFunctions::getErrorMessages ( ErrorLogger &  errorLogger )

inlinestatic

Definition at line 59 of file checkunusedfunctions.h.

References emptyString.

Referenced by CppCheck::getErrorMessages().

parseTokens()

void CheckUnusedFunctions::parseTokens	(	const Tokenizer &	tokenizer,
		const Settings &	settings
	)

Definition at line 62 of file checkunusedfunctions.cpp.

References Library::blockend(), Library::blockstart(), Library::blockstartoffset(), Function::eFunction, TokenList::file(), CheckUnusedFunctions::FunctionUsage::fileIndex, Token::fileIndex(), CheckUnusedFunctions::FunctionUsage::filename, findLambdaEndToken(), Scope::function, SymbolDatabase::functionScopes, TokenList::getFiles(), Tokenizer::getSymbolDatabase(), Function::isAttributeConstructor(), Function::isAttributeDestructor(), Library::isexecutableblock(), Library::isexportedprefix(), Library::isexportedsuffix(), Library::isexporter(), Function::isExtern(), Library::isimporter(), Token::isKeyword(), Library::iskeyword(), Function::isOperator(), Library::isreflection(), Token::isStandardType(), Settings::library, Token::linenr(), CheckUnusedFunctions::FunctionUsage::lineNumber, Token::link(), Token::linkAt(), Tokenizer::list, Library::markupFile(), Token::Match(), mFunctionCalls, mFunctionDecl, mFunctions, Function::name(), Token::next(), Token::previous(), Library::reflectionArgument(), Token::scope(), Token::simpleMatch(), Token::str(), stripTemplateParameters(), Token::tokAt(), Function::token, Tokenizer::tokens(), Function::type, CheckUnusedFunctions::FunctionUsage::usedOtherFile, CheckUnusedFunctions::FunctionUsage::usedSameFile, and Token::varId().

Referenced by CppCheck::checkNormalTokens().

unusedFunctionError()

void CheckUnusedFunctions::unusedFunctionError ( ErrorLogger &  errorLogger, const std::string &  filename, unsigned int  fileIndex, unsigned int  lineNumber, const std::string &  funcname  )

staticprivate

Definition at line 352 of file checkunusedfunctions.cpp.

References CWE561, emptyString, normal, ErrorLogger::reportErr(), and style.

Referenced by analyseWholeProgram(), and check().

updateFunctionData()

void CheckUnusedFunctions::updateFunctionData

(

const CheckUnusedFunctions &

check

)

Definition at line 458 of file checkunusedfunctions.cpp.

References check(), CheckUnusedFunctions::FunctionUsage::fileIndex, CheckUnusedFunctions::FunctionUsage::filename, CheckUnusedFunctions::FunctionUsage::lineNumber, mFunctionCalls, mFunctionDecl, mFunctions, CheckUnusedFunctions::FunctionUsage::usedOtherFile, and CheckUnusedFunctions::FunctionUsage::usedSameFile.

Friends And Related Function Documentation

TestProcessExecutorBase

friend class TestProcessExecutorBase

friend

Definition at line 43 of file checkunusedfunctions.h.

TestSingleExecutorBase

friend class TestSingleExecutorBase

friend

Definition at line 42 of file checkunusedfunctions.h.

TestSuppressions

friend class TestSuppressions

friend

Definition at line 41 of file checkunusedfunctions.h.

TestThreadExecutorBase

friend class TestThreadExecutorBase

friend

Definition at line 44 of file checkunusedfunctions.h.

TestUnusedFunctions

friend class TestUnusedFunctions

friend

Definition at line 45 of file checkunusedfunctions.h.

Member Data Documentation

mFunctionCalls

std::set<std::string> CheckUnusedFunctions::mFunctionCalls

private

Definition at line 90 of file checkunusedfunctions.h.

Referenced by analyzerInfo(), parseTokens(), and updateFunctionData().

mFunctionDecl

std::list<FunctionDecl> CheckUnusedFunctions::mFunctionDecl

private

Definition at line 89 of file checkunusedfunctions.h.

Referenced by analyzerInfo(), parseTokens(), and updateFunctionData().

mFunctions

std::unordered_map<std::string, FunctionUsage> CheckUnusedFunctions::mFunctions

private

Definition at line 81 of file checkunusedfunctions.h.

Referenced by check(), parseTokens(), and updateFunctionData().

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

• checkunusedfunctions.h
• checkunusedfunctions.cpp