ObjectTemplate Class Reference

#include <v8-template.h>

Inheritance diagram for ObjectTemplate:

Collaboration diagram for ObjectTemplate:

Public Member Functions
V8_WARN_UNUSED_RESULT MaybeLocal< Object >	NewInstance (Local< Context > context)
void	SetAccessor (Local< String > name, AccessorGetterCallback getter, AccessorSetterCallback setter=nullptr, Local< Value > data=Local< Value >(), AccessControl settings=DEFAULT, PropertyAttribute attribute=None, Local< AccessorSignature > signature=Local< AccessorSignature >(), SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect, SideEffectType setter_side_effect_type=SideEffectType::kHasSideEffect)
void	SetAccessor (Local< Name > name, AccessorNameGetterCallback getter, AccessorNameSetterCallback setter=nullptr, Local< Value > data=Local< Value >(), AccessControl settings=DEFAULT, PropertyAttribute attribute=None, Local< AccessorSignature > signature=Local< AccessorSignature >(), SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect, SideEffectType setter_side_effect_type=SideEffectType::kHasSideEffect)
void	SetHandler (const NamedPropertyHandlerConfiguration &configuration)
void	SetIndexedPropertyHandler (IndexedPropertyGetterCallback getter, IndexedPropertySetterCallback setter=nullptr, IndexedPropertyQueryCallback query=nullptr, IndexedPropertyDeleterCallback deleter=nullptr, IndexedPropertyEnumeratorCallback enumerator=nullptr, Local< Value > data=Local< Value >())
void	SetHandler (const IndexedPropertyHandlerConfiguration &configuration)
void	SetCallAsFunctionHandler (FunctionCallback callback, Local< Value > data=Local< Value >())
void	MarkAsUndetectable ()
void	SetAccessCheckCallback (AccessCheckCallback callback, Local< Value > data=Local< Value >())
void	SetAccessCheckCallbackAndHandler (AccessCheckCallback callback, const NamedPropertyHandlerConfiguration &named_handler, const IndexedPropertyHandlerConfiguration &indexed_handler, Local< Value > data=Local< Value >())
int	InternalFieldCount () const
void	SetInternalFieldCount (int value)
bool	IsImmutableProto () const
void	SetImmutableProto ()
void	SetCodeLike ()
bool	IsCodeLike () const
Public Member Functions inherited from Template
void	Set (Local< Name > name, Local< Data > value, PropertyAttribute attributes=None)
void	SetPrivate (Local< Private > name, Local< Data > value, PropertyAttribute attributes=None)
V8_INLINE void	Set (Isolate *isolate, const char *name, Local< Data > value, PropertyAttribute attributes=None)
void	SetAccessorProperty (Local< Name > name, Local< FunctionTemplate > getter=Local< FunctionTemplate >(), Local< FunctionTemplate > setter=Local< FunctionTemplate >(), PropertyAttribute attribute=None, AccessControl settings=DEFAULT)
void	SetNativeDataProperty (Local< String > name, AccessorGetterCallback getter, AccessorSetterCallback setter=nullptr, Local< Value > data=Local< Value >(), PropertyAttribute attribute=None, Local< AccessorSignature > signature=Local< AccessorSignature >(), AccessControl settings=DEFAULT, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect, SideEffectType setter_side_effect_type=SideEffectType::kHasSideEffect)
void	SetNativeDataProperty (Local< Name > name, AccessorNameGetterCallback getter, AccessorNameSetterCallback setter=nullptr, Local< Value > data=Local< Value >(), PropertyAttribute attribute=None, Local< AccessorSignature > signature=Local< AccessorSignature >(), AccessControl settings=DEFAULT, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect, SideEffectType setter_side_effect_type=SideEffectType::kHasSideEffect)
void	SetLazyDataProperty (Local< Name > name, AccessorNameGetterCallback getter, Local< Value > data=Local< Value >(), PropertyAttribute attribute=None, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect, SideEffectType setter_side_effect_type=SideEffectType::kHasSideEffect)
void	SetIntrinsicDataProperty (Local< Name > name, Intrinsic intrinsic, PropertyAttribute attribute=None)
Public Member Functions inherited from Data
bool	IsValue () const
bool	IsModule () const
bool	IsFixedArray () const
bool	IsPrivate () const
bool	IsObjectTemplate () const
bool	IsFunctionTemplate () const
bool	IsContext () const

Static Public Member Functions
static Local< ObjectTemplate >	New (Isolate *isolate, Local< FunctionTemplate > constructor=Local< FunctionTemplate >())
static V8_INLINE ObjectTemplate *	Cast (Data *data)

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 777 of file v8-template.h.

Member Function Documentation

Cast()

ObjectTemplate * Cast ( Data *  data )

static

Definition at line 1029 of file v8-template.h.

InternalFieldCount()

int InternalFieldCount

(

)

const

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

IsCodeLike()

bool IsCodeLike

(

)

const

IsImmutableProto()

bool IsImmutableProto

(

)

const

Returns true if the object will be an immutable prototype exotic object.

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 ( Isolate *  isolate, Local< FunctionTemplate >  constructor = Local< FunctionTemplate >()  )

static

Creates an ObjectTemplate.

NewInstance()

V8_WARN_UNUSED_RESULT MaybeLocal<Object> NewInstance

(

Local< Context >

context

)

Creates a new instance of this template.

SetAccessCheckCallback()

void SetAccessCheckCallback	(	AccessCheckCallback	callback,
		Local< Value >	data = Local< Value >()
	)

Sets access check callback on the object template and enables access checks.

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.

SetAccessCheckCallbackAndHandler()

void SetAccessCheckCallbackAndHandler	(	AccessCheckCallback	callback,
		const NamedPropertyHandlerConfiguration &	named_handler,
		const IndexedPropertyHandlerConfiguration &	indexed_handler,
		Local< Value >	data = Local< Value >()
	)

Like SetAccessCheckCallback but invokes an interceptor on failed access checks instead of looking up all-can-read properties. You can only use either this method or SetAccessCheckCallback, but not both at the same time.

SetAccessor() [1/2]

void SetAccessor	(	Local< Name >	name,
		AccessorNameGetterCallback	getter,
		AccessorNameSetterCallback	setter = nullptr,
		Local< Value >	data = Local< Value >(),
		AccessControl	settings = DEFAULT,
		PropertyAttribute	attribute = None,
		Local< AccessorSignature >	signature = Local< AccessorSignature >(),
		SideEffectType	getter_side_effect_type = SideEffectType::kHasSideEffect,
		SideEffectType	setter_side_effect_type = SideEffectType::kHasSideEffect
	)

SetAccessor() [2/2]

void SetAccessor	(	Local< String >	name,
		AccessorGetterCallback	getter,
		AccessorSetterCallback	setter = nullptr,
		Local< Value >	data = Local< Value >(),
		AccessControl	settings = DEFAULT,
		PropertyAttribute	attribute = None,
		Local< AccessorSignature >	signature = Local< AccessorSignature >(),
		SideEffectType	getter_side_effect_type = SideEffectType::kHasSideEffect,
		SideEffectType	setter_side_effect_type = SideEffectType::kHasSideEffect
	)

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	(	FunctionCallback	callback,
		Local< Value >	data = Local< 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.

SetCodeLike()

void SetCodeLike

(

)

Support for TC39 "dynamic code brand checks" proposal.

This API allows to mark (& query) objects as "code like", which causes them to be treated like Strings in the context of eval and function constructor.

Reference: https://github.com/tc39/proposal-dynamic-code-brand-checks

SetHandler() [1/2]

void SetHandler

(

const IndexedPropertyHandlerConfiguration &

configuration

)

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

configuration

The IndexedPropertyHandlerConfiguration that defines the callbacks to invoke when accessing a property.

Referenced by ObjectTemplate::SetIndexedPropertyHandler().

SetHandler() [2/2]

void SetHandler

(

const NamedPropertyHandlerConfiguration &

configuration

)

Sets a named property handler on the object template.

Whenever a property whose name is a string or a symbol 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

configuration

The NamedPropertyHandlerConfiguration that defines the callbacks to invoke when accessing a property.

SetImmutableProto()

void SetImmutableProto

(

)

Makes the ObjectTemplate for an immutable prototype exotic object, with an immutable proto.

SetIndexedPropertyHandler()

void SetIndexedPropertyHandler ( IndexedPropertyGetterCallback  getter, IndexedPropertySetterCallback  setter = nullptr, IndexedPropertyQueryCallback  query = nullptr, IndexedPropertyDeleterCallback  deleter = nullptr, IndexedPropertyEnumeratorCallback  enumerator = nullptr, Local< Value >  data = Local<Value>()  )

inline

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.

Definition at line 863 of file v8-template.h.

References IndexedPropertyHandlerConfiguration::IndexedPropertyHandlerConfiguration(), and ObjectTemplate::SetHandler().

SetInternalFieldCount()

void SetInternalFieldCount

(

int

value

)

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

Friends And Related Function Documentation

FunctionTemplate

friend class FunctionTemplate

friend

Definition at line 970 of file v8-template.h.

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

• include/v8-template.h