Detailed Description

A LuaFunction is a faudes-function that executes a luafaudes script.

LuaFunction is derived from Function and implements the DoTypeCheck and DoExecute interface to run the lua code as supplied by the corresponding function defintion. Thus, it is considered an error to set the function definition to an object that does not cast to a LuaFunctionDefinition.

Definition at line 677 of file lbp_function.h.

#include <lbp_function.h>

Public Member Functions
	LuaFunction (const LuaFunctionDefinition *fdef)
	Constructor. More...

	~LuaFunction (void)
	Destructor. More...

virtual LuaFunction *	New () const
	Construct on heap. More...

void	Definition (const FunctionDefinition *fdef)
	Set function definition. More...

const LuaFunctionDefinition *	Definition (void) const
	Get function definition. More...

void	SyntaxCheck (void)
	Syntax check lua code. More...

void	Evaluate (void)
	Evaluate lua code. More...

void	L (LuaState *l)
	Set lua state. More...

LuaState *	L (void)
	Get default lua state. More...

Public Member Functions inherited from faudes::Function
	Function (const FunctionDefinition *fdef)
	Constructor For the function to be operational, a valid reference to the corresponding FunctionDefinition is required. More...

	~Function ()
	Destructor. More...

const FunctionDefinition *	Definition (void) const
	Get function definition. More...

int	VariantsSize (void) const
	Return number of variants. More...

void	Variant (int n)
	Set signature from function definition. More...

void	Variant (const std::string &rVariantName)
	Set signature from function definition. More...

const Signature *	Variant (void) const
	Return pointer to assigned faudes::Signature. More...

int	ParamsSize (void) const
	Return number of parameters with current signature. More...

void	ParamValue (int n, Type *param)
	Set parameter at certain position. More...

Type *	ParamValue (int n) const
	Get parameter value. More...

void	AllocateValues (void)
	Construct parameter values. More...

void	AllocateValue (int i)

void	FreeValues (void)
	Destruct parameter values. More...

bool	TypeCheck (int n)
	Perform a type check one parameter value. More...

bool	TypeCheck (void)
	Perform a type check on the list of current parameter values. More...

void	Execute (void)
	Perform operation. More...

Public Member Functions inherited from faudes::Type
	Type (void)
	Constructor. More...

	Type (const Type &rType)
	Copy constructor. More...

virtual	~Type (void)
	Destructor. More...

virtual Type *	Copy (void) const
	Construct on heap. More...

virtual const Type *	Cast (const Type *pOther) const
	Cast other object to this type. More...

virtual void	Clear (void)
	Clear configuration data. More...

virtual Type &	Assign (const Type &rSrc)
	Assign configuration data from other object. More...

virtual Type &	operator= (const Type &rSrc)
	Assign configurationdata from other object. More...

virtual bool	Equal (const Type &rOther) const
	Test equality of configuration data. More...

virtual bool	operator== (const Type &rOther) const
	Test equality of configuration data. More...

virtual bool	operator!= (const Type &rOther) const
	Test equality of configuration data. More...

virtual void	Name (const std::string &rName)
	Set the objects's name. More...

virtual const std::string &	Name (void) const
	Get objects's name. More...

virtual const std::string &	TypeName (void) const
	Get objects's type name. More...

void	Write (const Type *pContext=0) const
	Write configuration data to console. More...

void	Write (const std::string &pFileName, const std::string &rLabel="", const Type *pContext=0, std::ios::openmode openmode=std::ios::out\|std::ios::trunc) const
	Write configuration data to a file. More...

void	Write (const std::string &pFileName, std::ios::openmode openmode) const
	Write configuration data to a file. More...

void	Write (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data to TokenWriter. More...

virtual void	XWrite (const std::string &pFileName, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data to an XML file. More...

void	XWrite (const Type *pContext=0) const
	Write configuration data in XML format to concole Note: this write function uses the virtual function DoXWrite(), to be reimplemented by derived classes. More...

void	XWrite (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data in XML format to TokenWriter. More...

std::string	ToString (const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data to a string. More...

std::string	ToText (const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data to a formated string. More...

void	DWrite (const Type *pContext=0) const
	Write configuration data to console, debugging format. More...

void	DWrite (const std::string &pFileName, const std::string &rLabel="", const Type *pContext=0, std::ios::openmode openmode=std::ios::out\|std::ios::trunc) const
	Write configuration data to a file, debugging format. More...

void	DWrite (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data in debug format to TokenWriter. More...

void	SWrite (TokenWriter &rTw) const
	Write statistics comment to TokenWriter. More...

void	SWrite (void) const
	Write statistics comment to console. More...

std::string	ToSText (void) const
	Write statistics to a string. More...

void	Read (const std::string &rFileName, const std::string &rLabel="", const Type *pContext=0)
	Read configuration data from file with label specified. More...

void	FromString (const std::string &rString, const std::string &rLabel="", const Type *pContext=0)
	Read configuration data from a string. More...

void	Read (TokenReader &rTr, const std::string &rLabel="", const Type *pContext=0)
	Read configuration data from TokenReader with label sepcified. More...

Protected Member Functions
virtual void	DoVariant (int n)

virtual bool	DoTypeCheck (int n)
	Method to test the type of an assigned parameter with the specified faudes::Signature (i.e. More...

virtual void	DoExecute ()
	Executes code as supplied by FunctionDefinition. More...

virtual void	DoExecuteA ()
	Execute stages. More...

virtual void	DoExecuteB ()
	Execute stages. More...

virtual void	DoExecuteC ()
	Execute stages. More...

virtual void	DoExecuteD ()
	Execute stages. More...

virtual void	DoExecuteE ()
	Execute stages. More...

Protected Member Functions inherited from faudes::Function
template<class T >
bool	DoTypeCast (int n, T *&rTypedRef)
	Helper: generate typed reference for parameter. More...

void	DoWrite (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write function-data (typeid-name of arguments) to TokenWriter. More...

Protected Member Functions inherited from faudes::Type
void	DoAssign (const Type &rSrc)
	Assign configuration data from other object. More...

bool	DoEqual (const Type &rOther) const
	Test equality of configuration data. More...

virtual void	DoRead (TokenReader &rTr, const std::string &rLabel="", const Type *pContext=0)
	Read configuration data of this object from TokenReader. More...

virtual void	DoXWrite (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data of this object to TokenWriter in XML format. More...

virtual void	DoDWrite (TokenWriter &rTw, const std::string &rLabel="", const Type *pContext=0) const
	Write configuration data in debugging format to TokenWriter. More...

virtual void	DoSWrite (TokenWriter &rTw) const
	Write statistical data as a comment to TokenWriter. More...

virtual const TypeDefinition *	TypeDefinitionp (void) const
	Get objects's type definition. More...

virtual Token	XBeginTag (const std::string &rLabel="", const std::string &rFallbackLabel="") const

Protected Attributes
const LuaFunctionDefinition *	pLuaFuncDef
	Typed reference to definition. More...

LuaState *	pL
	State of Lua interpreter. More...

lua_State *	pLL

int	mFtable

int	mEntryStack

void *	mFType

std::vector< bool >	mLReturn

std::vector< bool >	mLParameter

int	mLReturnCount

int	mLParameterCount

Protected Attributes inherited from faudes::Function
const FunctionDefinition *	pFuncDef
	corresponding function definition More...

int	mVariantIndex
	current variant aka signature as index w.r.t. More...

std::vector< Type * >	mParameterValues
	Vector of arguments. More...

Constructor & Destructor Documentation

◆ LuaFunction()

faudes::LuaFunction::LuaFunction ( const LuaFunctionDefinition * fdef )

Constructor.

For the function to be operational, a valid reference to the corresponding LuaFunctionDefinition is required. The only exception is the prototype function object used in the LuaFunctionDefinition itself.

◆ ~LuaFunction()

faudes::LuaFunction::~LuaFunction ( void )

inline

Destructor.

Definition at line 689 of file lbp_function.h.

Member Function Documentation

◆ Definition() [1/2]

void faudes::LuaFunction::Definition ( const FunctionDefinition * fdef )

virtual

Set function definition.

Normally, functions are provided with a function definition on construction. The only exception are prototype objects used in function definitions themselfs and in the function registry.

Parameters

fdef	Function definition to set.

Reimplemented from faudes::Function.

◆ Definition() [2/2]

const LuaFunctionDefinition* faudes::LuaFunction::Definition ( void ) const

Get function definition.

Returns: Function definition used by this function.

◆ DoExecute()

virtual void faudes::LuaFunction::DoExecute ( )

protectedvirtual

Executes code as supplied by FunctionDefinition.

Exceptions

Exception

Exception during lua setup (id 49)
Any exception during execution of script

Implements faudes::Function.

◆ DoExecuteA()

virtual void faudes::LuaFunction::DoExecuteA ( )

protectedvirtual

Execute stages.

Exceptions

Exception

Exception during lua setup (id 49)

◆ DoExecuteB()

virtual void faudes::LuaFunction::DoExecuteB ( )

protectedvirtual

Execute stages.

Exceptions

Exception

Exception during lua setup (id 49)

◆ DoExecuteC()

virtual void faudes::LuaFunction::DoExecuteC ( )

protectedvirtual

Execute stages.

Exceptions

Exception

Exception during lua setup (id 49)
Any exception during execution of script

◆ DoExecuteD()

virtual void faudes::LuaFunction::DoExecuteD ( )

protectedvirtual

Execute stages.

Exceptions

Exception

Exception during lua setup (id 49)

◆ DoExecuteE()

virtual void faudes::LuaFunction::DoExecuteE ( )

protectedvirtual

Execute stages.

Exceptions

Exception

Exception during lua setup (id 49)

◆ DoTypeCheck()

virtual bool faudes::LuaFunction::DoTypeCheck ( int n )

protectedvirtual

Method to test the type of an assigned parameter with the specified faudes::Signature (i.e.

their TypeDefinition label).

Note: this method is called by Function::Execute() before actual function execution via DoExecute(). It may be used to perform a dynamic cast in preparation of DoExecute(). The latter is only called, if all types match.

Parameters

n	Position of parameter to check

Returns: True if type matches signature.

Exceptions

Exception

Signature undefined (id 48)
Parameter number out of range (id 48)

Implements faudes::Function.

◆ DoVariant()

virtual void faudes::LuaFunction::DoVariant ( int n )

protectedvirtual

Reimplemented from faudes::Function.

◆ Evaluate()

void faudes::LuaFunction::Evaluate ( void )

Evaluate lua code.

This routine avaluates the associated Lua code literally, i.e. no arguments are passed, no specific function is invoked. See also Execute().

Exceptions

Exception

Error in Lua script (id 49)

◆ L() [1/2]

void faudes::LuaFunction::L ( LuaState * l )

Set lua state.

Sets the lua state which this function will use for execution. If set to NULL (e.g. on consruction), the function definition's default state will be used. If this is not set either, the global state is used.

Parameters

l Lua state

◆ L() [2/2]

LuaState* faudes::LuaFunction::L ( void )

Get default lua state.

Returns: Lua state

◆ New()

virtual LuaFunction* faudes::LuaFunction::New ( ) const

virtual

Construct on heap.

Create a new instance of this function class and return pointer. The new instance will use the same function definition as this instance.

Returns: Pointer to faudes::Function instance.

Implements faudes::Function.

◆ SyntaxCheck()

void faudes::LuaFunction::SyntaxCheck ( void )

Syntax check lua code.

This routine does all it needs to run the script, except to invoke the specified function. The reasoning is, that the script may hang and, thus, never return. A consequence is, that you must set a variant and you must supply parameter values befor checking. You may use AllocateValues() and FreeValues() for this purpose. Errors are indicated by an exception.

Note that the LuaFunctionDefinition provides a convenience wrapper that runs the check on all variants and cares about value allocation.

Exceptions

Exception

No such variant (id 47)
Error in Lua script (id 49)

Member Data Documentation

◆ mEntryStack

int faudes::LuaFunction::mEntryStack

protected

Definition at line 875 of file lbp_function.h.

◆ mFtable

int faudes::LuaFunction::mFtable

protected

Definition at line 874 of file lbp_function.h.

◆ mFType

void* faudes::LuaFunction::mFType

protected

Definition at line 876 of file lbp_function.h.

◆ mLParameter

std::vector<bool> faudes::LuaFunction::mLParameter

protected

Definition at line 878 of file lbp_function.h.

◆ mLParameterCount

int faudes::LuaFunction::mLParameterCount

protected

Definition at line 880 of file lbp_function.h.

◆ mLReturn

std::vector<bool> faudes::LuaFunction::mLReturn

protected

Definition at line 877 of file lbp_function.h.

◆ mLReturnCount

int faudes::LuaFunction::mLReturnCount

protected

Definition at line 879 of file lbp_function.h.

◆ pL

LuaState* faudes::LuaFunction::pL

protected

State of Lua interpreter.

Definition at line 872 of file lbp_function.h.

◆ pLL

lua_State* faudes::LuaFunction::pLL

protected

Definition at line 873 of file lbp_function.h.

◆ pLuaFuncDef

const LuaFunctionDefinition* faudes::LuaFunction::pLuaFuncDef

protected

Typed reference to definition.

Definition at line 869 of file lbp_function.h.

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

lbp_function.h

Detailed Description

Public Member Functions

Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

◆ LuaFunction()

◆ ~LuaFunction()

Member Function Documentation

◆ Definition() [1/2]

◆ Definition() [2/2]

◆ DoExecute()

◆ DoExecuteA()

◆ DoExecuteB()

◆ DoExecuteC()

◆ DoExecuteD()

◆ DoExecuteE()

◆ DoTypeCheck()

◆ DoVariant()

◆ Evaluate()

◆ L() [1/2]

◆ L() [2/2]

◆ New()

◆ SyntaxCheck()

Member Data Documentation

◆ mEntryStack

◆ mFtable

◆ mFType

◆ mLParameter

◆ mLParameterCount

◆ mLReturn

◆ mLReturnCount

◆ pL

◆ pLL

◆ pLuaFuncDef