v8  7.9.317(node13.2.0)
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

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


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 113 of file v8.h.

Constructor & Destructor Documentation

◆ FunctionCallbackInfo()

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

Definition at line 10646 of file v8.h.

Member Function Documentation

◆ Data()

Local< Value > Data ( ) const

The data argument specified when creating the callback.

Definition at line 10677 of file v8.h.

◆ GetIsolate()

Isolate * GetIsolate ( ) const

The current Isolate.

Definition at line 10683 of file v8.h.

◆ GetReturnValue()

ReturnValue< T > GetReturnValue ( ) const

The ReturnValue for the call.

Definition at line 10689 of file v8.h.

◆ Holder()

Local< Object > Holder ( ) const

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 10665 of file v8.h.

◆ IsConstructCall()

bool IsConstructCall ( ) const

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

Definition at line 10695 of file v8.h.

◆ Length()

int Length ( ) const

The number of available arguments.

Definition at line 10701 of file v8.h.

◆ NewTarget()

Local< Value > NewTarget ( ) const

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

Definition at line 10671 of file v8.h.

◆ operator[]()

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

Accessor for the available arguments.

Definition at line 10652 of file v8.h.

References v8::Undefined().

◆ This()

Local< Object > This ( ) const

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

Definition at line 10659 of file v8.h.

Friends And Related Function Documentation

◆ debug::ConsoleCallArguments

friend class debug::ConsoleCallArguments

Definition at line 4160 of file v8.h.

◆ internal::CustomArguments< FunctionCallbackInfo >

Definition at line 4159 of file v8.h.

◆ internal::FunctionCallbackArguments

friend class internal::FunctionCallbackArguments

Definition at line 4158 of file v8.h.

Field Documentation

◆ implicit_args_

internal::Address* implicit_args_

Definition at line 4170 of file v8.h.

◆ kArgsLength

const int kArgsLength = 6

Definition at line 4155 of file v8.h.

◆ kDataIndex

const int kDataIndex = 4

Definition at line 4165 of file v8.h.

◆ kHolderIndex

const int kHolderIndex = 0

Definition at line 4161 of file v8.h.

◆ kIsolateIndex

const int kIsolateIndex = 1

Definition at line 4162 of file v8.h.

◆ kNewTargetIndex

const int kNewTargetIndex = 5

Definition at line 4166 of file v8.h.

◆ kReturnValueDefaultValueIndex

const int kReturnValueDefaultValueIndex = 2

Definition at line 4163 of file v8.h.

◆ kReturnValueIndex

const int kReturnValueIndex = 3

Definition at line 4164 of file v8.h.

◆ length_

int length_

Definition at line 4172 of file v8.h.

◆ values_

internal::Address* values_

Definition at line 4171 of file v8.h.

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