v8  8.4.371(node14.15.0)
V8 is Google's open source JavaScript engine
FunctionCallbackInfo< T > Class Template Reference

#include <v8.h>

Public Member Functions

V8_INLINE int Length () const
 
V8_INLINE Local< Valueoperator[] (int i) const
 
V8_INLINE Local< ObjectThis () const
 
V8_INLINE Local< ObjectHolder () const
 
V8_INLINE Local< ValueNewTarget () const
 
V8_INLINE bool IsConstructCall () const
 
V8_INLINE Local< ValueData () const
 
V8_INLINE IsolateGetIsolate () const
 
V8_INLINE ReturnValue< T > GetReturnValue () const
 

Static Public Attributes

static const int kArgsLength = 6
 

Protected Member Functions

V8_INLINE FunctionCallbackInfo (internal::Address *implicit_args, internal::Address *values, int length)
 

Protected Attributes

internal::Addressimplicit_args_
 
internal::Addressvalues_
 
int length_
 

Static Protected Attributes

static const int kHolderIndex = 0
 
static const int kIsolateIndex = 1
 
static const int kReturnValueDefaultValueIndex = 2
 
static const int kReturnValueIndex = 3
 
static const int kDataIndex = 4
 
static const int kNewTargetIndex = 5
 

Friends

class internal::FunctionCallbackArguments
 
class internal::CustomArguments< FunctionCallbackInfo >
 
class debug::ConsoleCallArguments
 

Detailed Description

template<typename T>
class v8::FunctionCallbackInfo< T >

The argument information given to function call callbacks. This class provides access to information about the context of the call, including the receiver, the number and values of arguments, and the holder of the function.

Definition at line 115 of file v8.h.

Constructor & Destructor Documentation

◆ FunctionCallbackInfo()

FunctionCallbackInfo ( internal::Address implicit_args,
internal::Address values,
int  length 
)
protected

Member Function Documentation

◆ Data()

The data argument specified when creating the callback.

Definition at line 11184 of file v8.h.

References FunctionCallbackInfo< T >::implicit_args_, FunctionCallbackInfo< T >::kDataIndex, and V8::Local.

◆ GetIsolate()

◆ GetReturnValue()

◆ Holder()

Local< Object > Holder

If the callback was created without a Signature, this is the same value as This(). If there is a signature, and the signature didn't match This() but one of its hidden prototypes, this will be the respective hidden prototype.

Note that this is not the prototype of This() on which the accessor referencing this callback was found (which in V8 internally is often referred to as holder [sic]).

Definition at line 11172 of file v8.h.

References FunctionCallbackInfo< T >::implicit_args_, FunctionCallbackInfo< T >::kHolderIndex, and V8::Local.

◆ IsConstructCall()

bool IsConstructCall

Indicates whether this is a regular call or a construct call.

Definition at line 11202 of file v8.h.

References FunctionCallbackInfo< T >::NewTarget().

◆ Length()

int Length

The number of available arguments.

Definition at line 11208 of file v8.h.

References FunctionCallbackInfo< T >::length_.

◆ NewTarget()

Local< Value > NewTarget

For construct calls, this returns the "new.target" value.

Definition at line 11178 of file v8.h.

References FunctionCallbackInfo< T >::implicit_args_, FunctionCallbackInfo< T >::kNewTargetIndex, and V8::Local.

Referenced by FunctionCallbackInfo< T >::IsConstructCall().

◆ operator[]()

Local< Value > operator[] ( int  i) const

Accessor for the available arguments. Returns undefined if the index is out of bounds.

Definition at line 11149 of file v8.h.

References FunctionCallbackInfo< T >::GetIsolate(), FunctionCallbackInfo< T >::length_, V8::Local, and FunctionCallbackInfo< T >::values_.

◆ This()

Local< Object > This

Returns the receiver. This corresponds to the "this" value.

Definition at line 11161 of file v8.h.

References V8::Local, and FunctionCallbackInfo< T >::values_.

Friends And Related Function Documentation

◆ debug::ConsoleCallArguments

friend class debug::ConsoleCallArguments
friend

Definition at line 4302 of file v8.h.

◆ internal::CustomArguments< FunctionCallbackInfo >

Definition at line 4301 of file v8.h.

◆ internal::FunctionCallbackArguments

friend class internal::FunctionCallbackArguments
friend

Definition at line 4300 of file v8.h.

Field Documentation

◆ implicit_args_

◆ kArgsLength

const int kArgsLength = 6
static

Definition at line 4297 of file v8.h.

◆ kDataIndex

const int kDataIndex = 4
staticprotected

Definition at line 4307 of file v8.h.

Referenced by FunctionCallbackInfo< T >::Data().

◆ kHolderIndex

const int kHolderIndex = 0
staticprotected

Definition at line 4303 of file v8.h.

Referenced by FunctionCallbackInfo< T >::Holder().

◆ kIsolateIndex

const int kIsolateIndex = 1
staticprotected

Definition at line 4304 of file v8.h.

Referenced by FunctionCallbackInfo< T >::GetIsolate().

◆ kNewTargetIndex

const int kNewTargetIndex = 5
staticprotected

Definition at line 4308 of file v8.h.

Referenced by FunctionCallbackInfo< T >::NewTarget().

◆ kReturnValueDefaultValueIndex

const int kReturnValueDefaultValueIndex = 2
staticprotected

Definition at line 4305 of file v8.h.

◆ kReturnValueIndex

const int kReturnValueIndex = 3
staticprotected

Definition at line 4306 of file v8.h.

Referenced by FunctionCallbackInfo< T >::GetReturnValue().

◆ length_

◆ values_


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