ExpExtender Class Reference

ExpEvaluator extending interface. More...

#include <yatescript.h>

Inheritance diagram for ExpExtender:

Public Member Functions
virtual	~ExpExtender ()
virtual RefObject *	refObj ()
virtual bool	hasField (ObjList &stack, const String &name, GenObject *context) const
virtual NamedString *	getField (ObjList &stack, const String &name, GenObject *context) const
virtual bool	runFunction (ObjList &stack, const ExpOperation &oper, GenObject *context)
virtual bool	runField (ObjList &stack, const ExpOperation &oper, GenObject *context)
virtual bool	runAssign (ObjList &stack, const ExpOperation &oper, GenObject *context)

Detailed Description

ExpEvaluator extending interface.

This class allows extending ExpEvaluator to implement custom fields and functions

Constructor & Destructor Documentation

~ExpExtender()

virtual ~ExpExtender ( )

inlinevirtual

Destructor

Member Function Documentation

getField()

virtual NamedString * getField ( ObjList &  stack, const String &  name, GenObject *  context  ) const

virtual

Get a pointer to a field in extender

Parameters

stack	Evaluation stack in use
name	Name of the field to retrieve
context	Pointer to arbitrary object passed from evaluation methods

Returns

Pointer to field, NULL if not present

Reimplemented in ScriptContext, and JsObject.

hasField()

virtual bool hasField ( ObjList &  stack, const String &  name, GenObject *  context  ) const

virtual

Check if a certain field is assigned in extender

Parameters

stack	Evaluation stack in use
name	Name of the field to test
context	Pointer to arbitrary object passed from evaluation methods

Returns

True if the field is present

Reimplemented in ScriptContext, and JsObject.

refObj()

virtual RefObject * refObj ( )

virtual

Retrieve the reference counted object owning this interface

Returns

Pointer to object owning the extender, NULL if no ownership

Reimplemented in ScriptContext.

runAssign()

virtual bool runAssign ( ObjList &  stack, const ExpOperation &  oper, GenObject *  context  )

virtual

Try to assign a value to a single field

Parameters

stack	Evaluation stack in use
oper	Field to assign to, contains the field name and new value
context	Pointer to arbitrary object passed from evaluation methods

Returns

True if assignment succeeded

Reimplemented in ScriptContext, JsObject, JsArray, and JsRegExp.

runField()

virtual bool runField ( ObjList &  stack, const ExpOperation &  oper, GenObject *  context  )

virtual

Try to evaluate a single field

Parameters

stack	Evaluation stack in use, field value must be pushed on it
oper	Field to evaluate
context	Pointer to arbitrary object passed from evaluation methods

Returns

True if evaluation succeeded

Reimplemented in ScriptContext, JsObject, and JsArray.

runFunction()

virtual bool runFunction ( ObjList &  stack, const ExpOperation &  oper, GenObject *  context  )

virtual

Try to evaluate a single function

Parameters

stack	Evaluation stack in use, parameters are popped off this stack and results are pushed back on stack
oper	Function to evaluate
context	Pointer to arbitrary object passed from evaluation methods

Returns

True if evaluation succeeded

Reimplemented in ScriptContext, and JsObject.

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

• yatescript.h