ObjectTemplate Class Reference

#include <v8.h>

Inheritance diagram for ObjectTemplate:

Collaboration diagram for ObjectTemplate:

Public Member Functions
Local< Object >	NewInstance ()
void	SetAccessor (Handle< String > name, AccessorGetter getter, AccessorSetter setter=0, Handle< Value > data=Handle< Value >(), AccessControl settings=DEFAULT, PropertyAttribute attribute=None, Handle< AccessorSignature > signature=Handle< AccessorSignature >())
void	SetNamedPropertyHandler (NamedPropertyGetter getter, NamedPropertySetter setter=0, NamedPropertyQuery query=0, NamedPropertyDeleter deleter=0, NamedPropertyEnumerator enumerator=0, Handle< Value > data=Handle< Value >())
void	SetIndexedPropertyHandler (IndexedPropertyGetter getter, IndexedPropertySetter setter=0, IndexedPropertyQuery query=0, IndexedPropertyDeleter deleter=0, IndexedPropertyEnumerator enumerator=0, Handle< Value > data=Handle< Value >())
void	SetCallAsFunctionHandler (InvocationCallback callback, Handle< Value > data=Handle< Value >())
void	MarkAsUndetectable ()
void	SetAccessCheckCallbacks (NamedSecurityCallback named_handler, IndexedSecurityCallback indexed_handler, Handle< Value > data=Handle< Value >(), bool turned_on_by_default=true)
int	InternalFieldCount ()
void	SetInternalFieldCount (int value)
Public Member Functions inherited from Template
void	Set (Handle< String > name, Handle< Data > value, PropertyAttribute attributes=None)
void	Set (const char *name, Handle< Data > value)

Static Public Member Functions
static Local< ObjectTemplate >	New ()

Friends
class	FunctionTemplate

Detailed Description

An ObjectTemplate is used to create objects at runtime.

Properties added to an ObjectTemplate are added to each object created from the ObjectTemplate.

Definition at line 2321 of file v8.h.

Member Function Documentation

InternalFieldCount()

int InternalFieldCount

(

)

Gets the number of internal fields for objects generated from this template.

MarkAsUndetectable()

void MarkAsUndetectable

(

)

Mark object instances of the template as undetectable.

In many ways, undetectable objects behave as though they are not there. They behave like 'undefined' in conditionals and when printed. However, properties can be accessed and called as on normal objects.

New()

static Local<ObjectTemplate> New ( )

static

Creates an ObjectTemplate.

NewInstance()

Local<Object> NewInstance

(

)

Creates a new instance of this template.

SetAccessCheckCallbacks()

void SetAccessCheckCallbacks	(	NamedSecurityCallback	named_handler,
		IndexedSecurityCallback	indexed_handler,
		Handle< Value >	data = Handle< Value >(),
		bool	turned_on_by_default = true
	)

Sets access check callbacks on the object template.

When accessing properties on instances of this object template, the access check callback will be called to determine whether or not to allow cross-context access to the properties. The last parameter specifies whether access checks are turned on by default on instances. If access checks are off by default, they can be turned on on individual instances by calling Object::TurnOnAccessCheck().

SetAccessor()

void SetAccessor	(	Handle< String >	name,
		AccessorGetter	getter,
		AccessorSetter	setter = 0,
		Handle< Value >	data = Handle< Value >(),
		AccessControl	settings = DEFAULT,
		PropertyAttribute	attribute = None,
		Handle< AccessorSignature >	signature = Handle< AccessorSignature >()
	)

Sets an accessor on the object template.

Whenever the property with the given name is accessed on objects created from this ObjectTemplate the getter and setter callbacks are called instead of getting and setting the property directly on the JavaScript object.

Parameters

name	The name of the property for which an accessor is added.
getter	The callback to invoke when getting the property.
setter	The callback to invoke when setting the property.
data	A piece of data that will be passed to the getter and setter callbacks whenever they are invoked.
settings	Access control settings for the accessor. This is a bit field consisting of one of more of DEFAULT = 0, ALL_CAN_READ = 1, or ALL_CAN_WRITE = 2. The default is to not allow cross-context access. ALL_CAN_READ means that all cross-context reads are allowed. ALL_CAN_WRITE means that all cross-context writes are allowed. The combination ALL_CAN_READ | ALL_CAN_WRITE can be used to allow all cross-context access.
attribute	The attributes of the property for which an accessor is added.
signature	The signature describes valid receivers for the accessor and is used to perform implicit instance checks against them. If the receiver is incompatible (i.e. is not an instance of the constructor as defined by FunctionTemplate::HasInstance()), an implicit TypeError is thrown and no callback is invoked.

SetCallAsFunctionHandler()

void SetCallAsFunctionHandler	(	InvocationCallback	callback,
		Handle< Value >	data = Handle< Value >()
	)

Sets the callback to be used when calling instances created from this template as a function. If no callback is set, instances behave like normal JavaScript objects that cannot be called as a function.

SetIndexedPropertyHandler()

void SetIndexedPropertyHandler	(	IndexedPropertyGetter	getter,
		IndexedPropertySetter	setter = 0,
		IndexedPropertyQuery	query = 0,
		IndexedPropertyDeleter	deleter = 0,
		IndexedPropertyEnumerator	enumerator = 0,
		Handle< Value >	data = Handle< Value >()
	)

Sets an indexed property handler on the object template.

Whenever an indexed property is accessed on objects created from this object template, the provided callback is invoked instead of accessing the property directly on the JavaScript object.

Parameters

getter	The callback to invoke when getting a property.
setter	The callback to invoke when setting a property.
query	The callback to invoke to check if an object has a property.
deleter	The callback to invoke when deleting a property.
enumerator	The callback to invoke to enumerate all the indexed properties of an object.
data	A piece of data that will be passed to the callbacks whenever they are invoked.

SetInternalFieldCount()

void SetInternalFieldCount

(

int

value

)

Sets the number of internal fields for objects generated from this template.

SetNamedPropertyHandler()

void SetNamedPropertyHandler	(	NamedPropertyGetter	getter,
		NamedPropertySetter	setter = 0,
		NamedPropertyQuery	query = 0,
		NamedPropertyDeleter	deleter = 0,
		NamedPropertyEnumerator	enumerator = 0,
		Handle< Value >	data = Handle< Value >()
	)

Sets a named property handler on the object template.

Whenever a named property is accessed on objects created from this object template, the provided callback is invoked instead of accessing the property directly on the JavaScript object.

Parameters

getter	The callback to invoke when getting a property.
setter	The callback to invoke when setting a property.
query	The callback to invoke to check if a property is present, and if present, get its attributes.
deleter	The callback to invoke when deleting a property.
enumerator	The callback to invoke to enumerate all the named properties of an object.
data	A piece of data that will be passed to the callbacks whenever they are invoked.

Friends And Related Function Documentation

FunctionTemplate

friend class FunctionTemplate

friend

Definition at line 2464 of file v8.h.

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

• include/v8.h