Struct v8::FunctionCallbackArguments

pub struct FunctionCallbackArguments<'s>(/* private fields */);

Implementations

impl<'s> FunctionCallbackArguments<'s>

pub fn from_function_callback_info(info: &'s FunctionCallbackInfo) -> Self

pub unsafe fn get_isolate(&mut self) -> &mut Isolate

SAFETY: caller must guarantee that no other references to the isolate are accessible. Specifically, if an open CallbackScope or HandleScope exists in the current function, FunctionCallbackArguments::get_isolate() should not be called.

pub fn holder(&self) -> Local<'s, Object>

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]).

pub fn new_target(&self) -> Local<'s, Value>

For construct calls, this returns the “new.target” value.

pub fn this(&self) -> Local<'s, Object>

Returns the receiver. This corresponds to the “this” value.

pub fn data(&self) -> Local<'s, Value>

Returns the data argument specified when creating the callback.

pub fn length(&self) -> int

The number of available arguments.

pub fn get(&self, i: int) -> Local<'s, Value>

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

Trait Implementations

impl<'s> Debug for FunctionCallbackArguments<'s>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.