Emulation of the CINT CallFunc class.

The CINT C++ interpreter provides an interface for calling functions through the generated wrappers in dictionaries with the CallFunc class. This class provides the same functionality, using an interface as close as possible to CallFunc but the function metadata and calling service comes from the Cling C++ interpreter and the Clang C++ compiler, not CINT.

Definition at line 60 of file TClingCallFunc.h.

Public Member Functions
	TClingCallFunc (cling::Interpreter *interp)

	TClingCallFunc (const TClingCallFunc &rhs)

	TClingCallFunc (const TClingMethodInfo &minfo)

	~TClingCallFunc ()=default

void	Exec (void address, TInterpreterValue interpVal=0)

void *	ExecDefaultConstructor (const TClingClassInfo info, ROOT::TMetaUtils::EIOCtorCategory kind, const std::string &type_name, void address=nullptr, unsigned long nary=0UL)

void	ExecDestructor (const TClingClassInfo info, void address=nullptr, unsigned long nary=0UL, bool withFree=true)

double	ExecDouble (void *address)

Longptr_t	ExecInt (void *address)

long long	ExecInt64 (void *address)

void	ExecWithArgsAndReturn (void address, const void args[]=0, int nargs=0, void *ret=0)

void	ExecWithReturn (void address, void ret=nullptr)

TClingMethodInfo *	FactoryMethod () const

int	get_wrapper_code (std::string &wrapper_name, std::string &wrapper)

const clang::FunctionDecl *	GetDecl ()

const clang::FunctionDecl *	GetDecl () const

const clang::DeclContext *	GetDeclContext () const

const clang::Decl *	GetFunctionOrShadowDecl () const

TInterpreter::CallFuncIFacePtr_t	IFacePtr ()

void	IgnoreExtraArgs (bool ignore)

void	Init ()

void	Init (const TClingMethodInfo &)

void	Init (std::unique_ptr< TClingMethodInfo >)

void *	InterfaceMethod ()

void	Invoke (cling::Value *result=0) const

bool	IsValid () const

TClingCallFunc &	operator= (const TClingCallFunc &rhs)=delete

void	ResetArg ()

template<typename T , std::enable_if_t< std::is_fundamental< T >::value, bool > = true>
void	SetArg (T arg)

void	SetArgArray (Longptr_t *argArr, int narg)

void	SetArgs (const char *args)

void	SetFunc (const TClingClassInfo info, const char method, const char arglist, bool objectIsConst, Longptr_t poffset)

void	SetFunc (const TClingClassInfo info, const char method, const char arglist, Longptr_t poffset)

void	SetFunc (const TClingMethodInfo *info)

void	SetFuncProto (const TClingClassInfo info, const char method, const char proto, bool objectIsConst, Longptr_t poffset, ROOT::EFunctionMatchMode mode=ROOT::kConversionMatch)

void	SetFuncProto (const TClingClassInfo info, const char method, const char proto, Longptr_t poffset, ROOT::EFunctionMatchMode mode=ROOT::kConversionMatch)

void	SetFuncProto (const TClingClassInfo info, const char method, const llvm::SmallVectorImpl< clang::QualType > &proto, bool objectIsConst, Longptr_t *poffset, ROOT::EFunctionMatchMode mode=ROOT::kConversionMatch)

void	SetFuncProto (const TClingClassInfo info, const char method, const llvm::SmallVectorImpl< clang::QualType > &proto, Longptr_t *poffset, ROOT::EFunctionMatchMode mode=ROOT::kConversionMatch)

Private Types
enum	EReferenceType { kNotReference , kLValueReference , kRValueReference }

using	ExecWithRetFunc_t = std::function<void(void* address, cling::Value &ret)>

Private Member Functions
size_t	CalculateMinRequiredArguments ()

void	collect_type_info (clang::QualType &QT, std::ostringstream &typedefbuf, std::ostringstream &callbuf, std::string &type_name, EReferenceType &refType, bool &isPointer, int indent_level, bool forArgument)

void *	compile_wrapper (const std::string &wrapper_name, const std::string &wrapper, bool withAccessControl=true)

void	EvaluateArgList (const std::string &ArgList)

void	exec (void address, void ret)

void	exec_with_valref_return (void *address, cling::Value &ret)

template<typename T >
T	ExecT (void *address)

size_t	GetMinRequiredArguments ()

tcling_callfunc_ctor_Wrapper_t	make_ctor_wrapper (const TClingClassInfo *, ROOT::TMetaUtils::EIOCtorCategory, const std::string &)

tcling_callfunc_dtor_Wrapper_t	make_dtor_wrapper (const TClingClassInfo *info)

void	make_narg_call (const std::string &return_type, const unsigned N, std::ostringstream &typedefbuf, std::ostringstream &callbuf, const std::string &class_name, int indent_level)

void	make_narg_call_with_return (const unsigned N, const std::string &class_name, std::ostringstream &buf, int indent_level)

void	make_narg_ctor (const unsigned N, std::ostringstream &typedefbuf, std::ostringstream &callbuf, const std::string &class_name, int indent_level)

void	make_narg_ctor_with_return (const unsigned N, const std::string &class_name, std::ostringstream &buf, int indent_level)

tcling_callfunc_Wrapper_t	make_wrapper ()

Private Attributes
llvm::SmallVector< cling::Value, 8 >	fArgVals
	Stored function arguments, we own.

const clang::FunctionDecl *	fDecl = nullptr
	Decl for the method.

cling::Interpreter *	fInterp
	Cling interpreter, we do not own.

std::unique_ptr< TClingMethodInfo >	fMethod
	Current method, we own.

size_t	fMinRequiredArguments = -1
	Number of required arguments.

std::atomic< tcling_callfunc_Wrapper_t >	fWrapper
	Pointer to compiled wrapper, we do not own.

#include </github/home/ROOT-CI/src/core/metacling/src/TClingCallFunc.h>

Member Typedef Documentation

◆ ExecWithRetFunc_t

using TClingCallFunc::ExecWithRetFunc_t = std::function<void(void* address, cling::Value &ret)>

private

Definition at line 84 of file TClingCallFunc.h.

Member Enumeration Documentation

◆ EReferenceType

enum TClingCallFunc::EReferenceType

private

Enumerator
kNotReference
kLValueReference
kRValueReference

Definition at line 78 of file TClingCallFunc.h.

Constructor & Destructor Documentation

◆ ~TClingCallFunc()

TClingCallFunc::~TClingCallFunc ( )

default

◆ TClingCallFunc() [1/3]

TClingCallFunc::TClingCallFunc ( cling::Interpreter * interp )

inlineexplicit

Definition at line 141 of file TClingCallFunc.h.

◆ TClingCallFunc() [2/3]

TClingCallFunc::TClingCallFunc ( const TClingMethodInfo & minfo )

inlineexplicit

Definition at line 147 of file TClingCallFunc.h.

◆ TClingCallFunc() [3/3]

TClingCallFunc::TClingCallFunc ( const TClingCallFunc & rhs )

inline

Definition at line 154 of file TClingCallFunc.h.

Member Function Documentation

◆ CalculateMinRequiredArguments()

size_t TClingCallFunc::CalculateMinRequiredArguments ( )

private

Definition at line 133 of file TClingCallFunc.cxx.

◆ collect_type_info()

void TClingCallFunc::collect_type_info	(	clang::QualType &	QT,
		std::ostringstream &	typedefbuf,
		std::ostringstream &	callbuf,
		std::string &	type_name,
		EReferenceType &	refType,
		bool &	isPointer,
		int	indent_level,
		bool	forArgument )

private

Definition at line 158 of file TClingCallFunc.cxx.

◆ compile_wrapper()

void * TClingCallFunc::compile_wrapper	(	const std::string &	wrapper_name,
		const std::string &	wrapper,
		bool	withAccessControl = true )

private

Definition at line 139 of file TClingCallFunc.cxx.

◆ EvaluateArgList()

void TClingCallFunc::EvaluateArgList ( const std::string & ArgList )

private

Definition at line 1491 of file TClingCallFunc.cxx.

◆ Exec()

void TClingCallFunc::Exec	(	void *	address,
		TInterpreterValue *	interpVal = 0 )

Definition at line 1515 of file TClingCallFunc.cxx.

◆ exec()

void TClingCallFunc::exec	(	void *	address,
		void *	ret )

private

Definition at line 1394 of file TClingCallFunc.cxx.

◆ exec_with_valref_return()

void TClingCallFunc::exec_with_valref_return	(	void *	address,
		cling::Value &	ret )

private

Definition at line 1469 of file TClingCallFunc.cxx.

◆ ExecDefaultConstructor()

void * TClingCallFunc::ExecDefaultConstructor	(	const TClingClassInfo *	info,
		ROOT::TMetaUtils::EIOCtorCategory	kind,
		const std::string &	type_name,
		void *	address = nullptr,
		unsigned long	nary = 0UL )

Definition at line 1590 of file TClingCallFunc.cxx.

◆ ExecDestructor()

void TClingCallFunc::ExecDestructor	(	const TClingClassInfo *	info,
		void *	address = nullptr,
		unsigned long	nary = 0UL,
		bool	withFree = true )

Definition at line 1628 of file TClingCallFunc.cxx.

◆ ExecDouble()

double TClingCallFunc::ExecDouble ( void * address )

Definition at line 1562 of file TClingCallFunc.cxx.

◆ ExecInt()

Longptr_t TClingCallFunc::ExecInt ( void * address )

Definition at line 1552 of file TClingCallFunc.cxx.

◆ ExecInt64()

long long TClingCallFunc::ExecInt64 ( void * address )

Definition at line 1557 of file TClingCallFunc.cxx.

◆ ExecT()

template<typename T >

T TClingCallFunc::ExecT ( void * address )

private

Definition at line 1532 of file TClingCallFunc.cxx.

◆ ExecWithArgsAndReturn()

void TClingCallFunc::ExecWithArgsAndReturn	(	void *	address,
		const void *	args[] = 0,
		int	nargs = 0,
		void *	ret = 0 )

Definition at line 1567 of file TClingCallFunc.cxx.

◆ ExecWithReturn()

void TClingCallFunc::ExecWithReturn	(	void *	address,
		void *	ret = nullptr )

Definition at line 1579 of file TClingCallFunc.cxx.

◆ FactoryMethod()

TClingMethodInfo * TClingCallFunc::FactoryMethod ( ) const

Definition at line 1656 of file TClingCallFunc.cxx.

◆ get_wrapper_code()

int TClingCallFunc::get_wrapper_code	(	std::string &	wrapper_name,
		std::string &	wrapper )

Definition at line 480 of file TClingCallFunc.cxx.

◆ GetDecl() [1/2]

const clang::FunctionDecl * TClingCallFunc::GetDecl ( )

inline

Definition at line 190 of file TClingCallFunc.h.

◆ GetDecl() [2/2]

const clang::FunctionDecl * TClingCallFunc::GetDecl ( ) const

inline

Definition at line 196 of file TClingCallFunc.h.

◆ GetDeclContext()

const clang::DeclContext * TClingCallFunc::GetDeclContext ( ) const

Definition at line 476 of file TClingCallFunc.cxx.

◆ GetFunctionOrShadowDecl()

const clang::Decl * TClingCallFunc::GetFunctionOrShadowDecl ( ) const

inline

Definition at line 201 of file TClingCallFunc.h.

◆ GetMinRequiredArguments()

size_t TClingCallFunc::GetMinRequiredArguments ( )

inlineprivate

Definition at line 126 of file TClingCallFunc.h.

◆ IFacePtr()

TInterpreter::CallFuncIFacePtr_t TClingCallFunc::IFacePtr ( )

Definition at line 1712 of file TClingCallFunc.cxx.

◆ IgnoreExtraArgs()

void TClingCallFunc::IgnoreExtraArgs ( bool ignore )

inline

Definition at line 178 of file TClingCallFunc.h.

◆ Init() [1/3]

void TClingCallFunc::Init ( )

Definition at line 1661 of file TClingCallFunc.cxx.

◆ Init() [2/3]

void TClingCallFunc::Init ( const TClingMethodInfo & minfo )

Definition at line 1670 of file TClingCallFunc.cxx.

◆ Init() [3/3]

void TClingCallFunc::Init ( std::unique_ptr< TClingMethodInfo > minfo )

Definition at line 1676 of file TClingCallFunc.cxx.

◆ InterfaceMethod()

void * TClingCallFunc::InterfaceMethod ( )

Definition at line 1682 of file TClingCallFunc.cxx.

◆ Invoke()

void TClingCallFunc::Invoke ( cling::Value * result = 0 ) const

◆ IsValid()

bool TClingCallFunc::IsValid ( ) const

Definition at line 1704 of file TClingCallFunc.cxx.

◆ make_ctor_wrapper()

tcling_callfunc_ctor_Wrapper_t TClingCallFunc::make_ctor_wrapper	(	const TClingClassInfo *	info,
		ROOT::TMetaUtils::EIOCtorCategory	kind,
		const std::string &	type_name )

private

Definition at line 1019 of file TClingCallFunc.cxx.

◆ make_dtor_wrapper()

tcling_callfunc_dtor_Wrapper_t TClingCallFunc::make_dtor_wrapper ( const TClingClassInfo * info )

private

Definition at line 1230 of file TClingCallFunc.cxx.

◆ make_narg_call()

void TClingCallFunc::make_narg_call	(	const std::string &	return_type,
		const unsigned	N,
		std::ostringstream &	typedefbuf,
		std::ostringstream &	callbuf,
		const std::string &	class_name,
		int	indent_level )

private

Definition at line 277 of file TClingCallFunc.cxx.

◆ make_narg_call_with_return()

void TClingCallFunc::make_narg_call_with_return	(	const unsigned	N,
		const std::string &	class_name,
		std::ostringstream &	buf,
		int	indent_level )

private

Definition at line 865 of file TClingCallFunc.cxx.

◆ make_narg_ctor()

void TClingCallFunc::make_narg_ctor	(	const unsigned	N,
		std::ostringstream &	typedefbuf,
		std::ostringstream &	callbuf,
		const std::string &	class_name,
		int	indent_level )

private

Definition at line 232 of file TClingCallFunc.cxx.

◆ make_narg_ctor_with_return()

void TClingCallFunc::make_narg_ctor_with_return	(	const unsigned	N,
		const std::string &	class_name,
		std::ostringstream &	buf,
		int	indent_level )

private

Definition at line 394 of file TClingCallFunc.cxx.

◆ make_wrapper()

tcling_callfunc_Wrapper_t TClingCallFunc::make_wrapper ( )

private

Definition at line 994 of file TClingCallFunc.cxx.

◆ operator=()

TClingCallFunc & TClingCallFunc::operator= ( const TClingCallFunc & rhs )

delete

◆ ResetArg()

void TClingCallFunc::ResetArg ( )

Definition at line 1737 of file TClingCallFunc.cxx.

◆ SetArg()

template<typename T , std::enable_if_t< std::is_fundamental< T >::value, bool > = true>

void TClingCallFunc::SetArg ( T arg )

inline

Definition at line 206 of file TClingCallFunc.h.

◆ SetArgArray()

void TClingCallFunc::SetArgArray	(	Longptr_t *	argArr,
		int	narg )

Definition at line 1742 of file TClingCallFunc.cxx.

◆ SetArgs()

void TClingCallFunc::SetArgs ( const char * args )

Definition at line 1750 of file TClingCallFunc.cxx.

◆ SetFunc() [1/3]

void TClingCallFunc::SetFunc	(	const TClingClassInfo *	info,
		const char *	method,
		const char *	arglist,
		bool	objectIsConst,
		Longptr_t *	poffset )

Definition at line 1762 of file TClingCallFunc.cxx.

◆ SetFunc() [2/3]

void TClingCallFunc::SetFunc	(	const TClingClassInfo *	info,
		const char *	method,
		const char *	arglist,
		Longptr_t *	poffset )

Definition at line 1756 of file TClingCallFunc.cxx.

◆ SetFunc() [3/3]

void TClingCallFunc::SetFunc ( const TClingMethodInfo * info )

Definition at line 1790 of file TClingCallFunc.cxx.

◆ SetFuncProto() [1/4]

void TClingCallFunc::SetFuncProto	(	const TClingClassInfo *	info,
		const char *	method,
		const char *	proto,
		bool	objectIsConst,
		Longptr_t *	poffset,
		ROOT::EFunctionMatchMode	mode = ROOT::kConversionMatch )

Definition at line 1806 of file TClingCallFunc.cxx.

◆ SetFuncProto() [2/4]

void TClingCallFunc::SetFuncProto	(	const TClingClassInfo *	info,
		const char *	method,
		const char *	proto,
		Longptr_t *	poffset,
		ROOT::EFunctionMatchMode	mode = ROOT::kConversionMatch )

Definition at line 1799 of file TClingCallFunc.cxx.

◆ SetFuncProto() [3/4]

void TClingCallFunc::SetFuncProto	(	const TClingClassInfo *	info,
		const char *	method,
		const llvm::SmallVectorImpl< clang::QualType > &	proto,
		bool	objectIsConst,
		Longptr_t *	poffset,
		ROOT::EFunctionMatchMode	mode = ROOT::kConversionMatch )

Definition at line 1834 of file TClingCallFunc.cxx.

◆ SetFuncProto() [4/4]

void TClingCallFunc::SetFuncProto	(	const TClingClassInfo *	info,
		const char *	method,
		const llvm::SmallVectorImpl< clang::QualType > &	proto,
		Longptr_t *	poffset,
		ROOT::EFunctionMatchMode	mode = ROOT::kConversionMatch )

Definition at line 1827 of file TClingCallFunc.cxx.

Member Data Documentation

◆ fArgVals

llvm::SmallVector<cling::Value, 8> TClingCallFunc::fArgVals

mutableprivate

Stored function arguments, we own.

Definition at line 75 of file TClingCallFunc.h.

◆ fDecl

const clang::FunctionDecl* TClingCallFunc::fDecl = nullptr

private

Decl for the method.

Definition at line 69 of file TClingCallFunc.h.

◆ fInterp

cling::Interpreter* TClingCallFunc::fInterp

private

Cling interpreter, we do not own.

Definition at line 65 of file TClingCallFunc.h.

◆ fMethod

std::unique_ptr<TClingMethodInfo> TClingCallFunc::fMethod

private

Current method, we own.

Definition at line 67 of file TClingCallFunc.h.

◆ fMinRequiredArguments

size_t TClingCallFunc::fMinRequiredArguments = -1

private

Number of required arguments.

Definition at line 71 of file TClingCallFunc.h.

◆ fWrapper

std::atomic<tcling_callfunc_Wrapper_t> TClingCallFunc::fWrapper

private

Pointer to compiled wrapper, we do not own.

Definition at line 73 of file TClingCallFunc.h.

core/metacling/src/TClingCallFunc.h

core/metacling/src/TClingCallFunc.cxx

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Member Typedef Documentation

◆ ExecWithRetFunc_t

Member Enumeration Documentation

◆ EReferenceType

Constructor & Destructor Documentation

◆ ~TClingCallFunc()

◆ TClingCallFunc() [1/3]

◆ TClingCallFunc() [2/3]

◆ TClingCallFunc() [3/3]

Member Function Documentation

◆ CalculateMinRequiredArguments()

◆ collect_type_info()

◆ compile_wrapper()

◆ EvaluateArgList()

◆ Exec()

◆ exec()

◆ exec_with_valref_return()

◆ ExecDefaultConstructor()

◆ ExecDestructor()

◆ ExecDouble()

◆ ExecInt()

◆ ExecInt64()

◆ ExecT()

◆ ExecWithArgsAndReturn()

◆ ExecWithReturn()

◆ FactoryMethod()

◆ get_wrapper_code()

◆ GetDecl() [1/2]

◆ GetDecl() [2/2]

◆ GetDeclContext()

◆ GetFunctionOrShadowDecl()

◆ GetMinRequiredArguments()

◆ IFacePtr()

◆ IgnoreExtraArgs()

◆ Init() [1/3]

◆ Init() [2/3]

◆ Init() [3/3]

◆ InterfaceMethod()

◆ Invoke()

◆ IsValid()

◆ make_ctor_wrapper()

◆ make_dtor_wrapper()

◆ make_narg_call()

◆ make_narg_call_with_return()

◆ make_narg_ctor()

◆ make_narg_ctor_with_return()

◆ make_wrapper()

◆ operator=()

◆ ResetArg()

◆ SetArg()

◆ SetArgArray()

◆ SetArgs()

◆ SetFunc() [1/3]

◆ SetFunc() [2/3]

◆ SetFunc() [3/3]

◆ SetFuncProto() [1/4]

◆ SetFuncProto() [2/4]

◆ SetFuncProto() [3/4]

◆ SetFuncProto() [4/4]

Member Data Documentation

◆ fArgVals

◆ fDecl

◆ fInterp

◆ fMethod

◆ fMinRequiredArguments

◆ fWrapper