Check class variables, variables that are allocated in the constructor should be deallocated in the destructor More...

#include <checkmemoryleak.h>

Inheritance diagram for CheckMemoryLeakInClass:

Public Member Functions
	CheckMemoryLeakInClass ()

Public Member Functions inherited from Check
	Check (const std::string &aname)
	This constructor is used when registering the CheckClass. More...

virtual	~Check ()

	Check (const Check &)=delete

Check &	operator= (const Check &)=delete

const std::string &	name () const
	class name, used to generate documentation More...

virtual FileInfo *	getFileInfo (const Tokenizer &, const Settings &) const

virtual FileInfo *	loadFileInfoFromXml (const tinyxml2::XMLElement *xmlElement) const

virtual bool	analyseWholeProgram (const CTU::FileInfo ctu, const std::list< FileInfo > &fileInfo, const Settings &, ErrorLogger &)

Private Member Functions
	CheckMemoryLeakInClass (const Tokenizer tokenizer, const Settings settings, ErrorLogger *errorLogger)

void	runChecks (const Tokenizer &tokenizer, ErrorLogger *errorLogger) override
	run checks, the token list is not simplified More...

void	check ()

void	variable (const Scope scope, const Token tokVarname)

void	checkPublicFunctions (const Scope scope, const Token classtok)
	Public functions: possible double-allocation. More...

void	publicAllocationError (const Token *tok, const std::string &varname)

void	unsafeClassError (const Token *tok, const std::string &classname, const std::string &varname)

void	getErrorMessages (ErrorLogger e, const Settings settings) const override
	get error messages More...

std::string	classInfo () const override
	get information about this class, used to generate documentation More...

Private Member Functions inherited from CheckMemoryLeak
	CheckMemoryLeak ()=delete

	CheckMemoryLeak (const CheckMemoryLeak &)=delete

CheckMemoryLeak &	operator= (const CheckMemoryLeak &)=delete

	CheckMemoryLeak (const Tokenizer t, ErrorLogger e, const Settings *s)

void	memoryLeak (const Token *tok, const std::string &varname, AllocType alloctype) const

AllocType	getDeallocationType (const Token *tok, nonneg int varid) const
	Get type of deallocation at given position. More...

AllocType	getAllocationType (const Token tok2, nonneg int varid, std::list< const Function > *callstack=nullptr) const
	Get type of allocation at given position. More...

AllocType	getReallocationType (const Token *tok2, nonneg int varid) const
	Get type of reallocation at given position. More...

bool	isReopenStandardStream (const Token *tok) const
	Check if token reopens a standard stream. More...

bool	isOpenDevNull (const Token *tok) const
	Check if token opens /dev/null. More...

void	memleakError (const Token *tok, const std::string &varname) const
	Report that there is a memory leak (new/malloc/etc) More...

void	resourceLeakError (const Token *tok, const std::string &varname) const
	Report that there is a resource leak (fopen/popen/etc) More...

void	deallocuseError (const Token *tok, const std::string &varname) const

void	mismatchAllocDealloc (const std::list< const Token * > &callstack, const std::string &varname) const

void	memleakUponReallocFailureError (const Token *tok, const std::string &reallocfunction, const std::string &varname) const

AllocType	functionReturnType (const Function func, std::list< const Function > *callstack=nullptr) const
	What type of allocated memory does the given function return? More...

Static Private Member Functions
static std::string	myName ()

Friends
class	TestMemleakInClass

Additional Inherited Members
Static Public Member Functions inherited from Check
static std::list< Check * > &	instances ()
	List of registered check classes. More...

static void	writeToErrorList (const ErrorMessage &errmsg)
	Write given error to stdout in xml format. More...

Protected Member Functions inherited from Check
	Check (std::string aname, const Tokenizer tokenizer, const Settings settings, ErrorLogger *errorLogger)
	This constructor is used when running checks. More...

void	reportError (const Token *tok, const Severity severity, const std::string &id, const std::string &msg)
	report an error More...

void	reportError (const Token *tok, const Severity severity, const std::string &id, const std::string &msg, const CWE &cwe, Certainty certainty)
	report an error More...

void	reportError (const std::list< const Token * > &callstack, Severity severity, const std::string &id, const std::string &msg)
	report an error More...

void	reportError (const std::list< const Token * > &callstack, Severity severity, const std::string &id, const std::string &msg, const CWE &cwe, Certainty certainty)
	report an error More...

void	reportError (const ErrorPath &errorPath, Severity severity, const char id[], const std::string &msg, const CWE &cwe, Certainty certainty)

void	logChecker (const char id[])
	log checker More...

ErrorPath	getErrorPath (const Token errtok, const ValueFlow::Value value, std::string bug) const

bool	wrongData (const Token tok, const char str)
	Use WRONG_DATA in checkers when you check for wrong data. More...

Static Protected Member Functions inherited from Check
static std::string	getMessageId (const ValueFlow::Value &value, const char id[])

Protected Attributes inherited from Check
const Tokenizer *const	mTokenizer {}

const Settings *const	mSettings {}

ErrorLogger *const	mErrorLogger {}

Private Types inherited from CheckMemoryLeak
enum	AllocType { No , Malloc , New , NewArray , File , Fd , Pipe , OtherMem , OtherRes , Many }
	What type of allocation are used. More...

Detailed Description

Check class variables, variables that are allocated in the constructor should be deallocated in the destructor

Definition at line 223 of file checkmemoryleak.h.

Constructor & Destructor Documentation

◆ CheckMemoryLeakInClass() [1/2]

CheckMemoryLeakInClass::CheckMemoryLeakInClass ( )

inline

Definition at line 227 of file checkmemoryleak.h.

◆ CheckMemoryLeakInClass() [2/2]

CheckMemoryLeakInClass::CheckMemoryLeakInClass	(	const Tokenizer *	tokenizer,
		const Settings *	settings,
		ErrorLogger *	errorLogger
	)

inlineprivate

Definition at line 230 of file checkmemoryleak.h.

Member Function Documentation

◆ check()

void CheckMemoryLeakInClass::check ( )

private

Definition at line 504 of file checkmemoryleak.cpp.

References checkPublicFunctions(), SymbolDatabase::classAndStructScopes, Type::derivedFrom, Tokenizer::getSymbolDatabase(), Variable::isPointer(), Variable::isPointerArray(), Variable::isPrivate(), Token::isStandardType(), Variable::isStatic(), Check::logChecker(), Check::mTokenizer, Variable::nameToken(), Variable::type(), Variable::typeStartToken(), variable(), and Scope::varlist.

Referenced by runChecks().

◆ checkPublicFunctions()

void CheckMemoryLeakInClass::checkPublicFunctions	(	const Scope *	scope,
		const Token *	classtok
	)

private

Public functions: possible double-allocation.

Definition at line 649 of file checkmemoryleak.cpp.

References Function::access, Scope::bodyStart, Scope::className, Function::eFunction, Function::eOperatorEqual, Scope::functionList, Function::functionScope, CheckMemoryLeak::getAllocationType(), Function::hasBody(), SimpleEnableGroup< T >::isEnabled(), Token::Match(), Check::mSettings, Token::next(), CheckMemoryLeak::No, Public, publicAllocationError(), Settings::severity, Token::str(), Token::strAt(), Token::tokAt(), Function::type, Token::varId(), and warning.

Referenced by check().

◆ classInfo()

std::string CheckMemoryLeakInClass::classInfo ( ) const

inlineoverrideprivatevirtual

get information about this class, used to generate documentation

Implements Check.

Definition at line 261 of file checkmemoryleak.h.

◆ getErrorMessages()

void CheckMemoryLeakInClass::getErrorMessages	(	ErrorLogger *	errorLogger,
		const Settings *	settings
	)		const

inlineoverrideprivatevirtual

get error messages

Implements Check.

Definition at line 251 of file checkmemoryleak.h.

References publicAllocationError(), and unsafeClassError().

◆ myName()

static std::string CheckMemoryLeakInClass::myName ( )

inlinestaticprivate

Definition at line 257 of file checkmemoryleak.h.

◆ publicAllocationError()

void CheckMemoryLeakInClass::publicAllocationError	(	const Token *	tok,
		const std::string &	varname
	)

private

Definition at line 679 of file checkmemoryleak.cpp.

References CWE398, normal, Check::reportError(), and warning.

Referenced by checkPublicFunctions(), and getErrorMessages().

◆ runChecks()

void CheckMemoryLeakInClass::runChecks	(	const Tokenizer &	,
		ErrorLogger *
	)

inlineoverrideprivatevirtual

run checks, the token list is not simplified

Implements Check.

Definition at line 233 of file checkmemoryleak.h.

References check(), Tokenizer::getSettings(), and Tokenizer::isCPP().

◆ unsafeClassError()

void CheckMemoryLeakInClass::unsafeClassError	(	const Token *	tok,
		const std::string &	classname,
		const std::string &	varname
	)

private

Definition at line 636 of file checkmemoryleak.cpp.

References CWE398, SimpleEnableGroup< T >::isEnabled(), Settings::isPremiumEnabled(), Check::mSettings, normal, Check::reportError(), Settings::severity, and style.

Referenced by getErrorMessages(), and variable().

◆ variable()

void CheckMemoryLeakInClass::variable	(	const Scope *	scope,
		const Token *	tokVarname
	)

private

Friends And Related Function Documentation

◆ TestMemleakInClass

friend class TestMemleakInClass

friend

Definition at line 224 of file checkmemoryleak.h.

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

Public Member Functions

Private Member Functions

Static Private Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CheckMemoryLeakInClass() [1/2]

◆ CheckMemoryLeakInClass() [2/2]

Member Function Documentation

◆ check()

◆ checkPublicFunctions()

◆ classInfo()

◆ getErrorMessages()

◆ myName()

◆ publicAllocationError()

◆ runChecks()

◆ unsafeClassError()

◆ variable()

Friends And Related Function Documentation

◆ TestMemleakInClass