Struct rusty_v8::ArrayBuffer

#[repr(C)]
pub struct ArrayBuffer(_);

An instance of the built-in ArrayBuffer constructor (ES6 draft 15.13.5).

Methods

impl ArrayBuffer

pub fn new<'sc>(
    scope: &mut impl ToLocal<'sc>,
    byte_length: usize
) -> Local<'sc, ArrayBuffer>

Create a new ArrayBuffer. Allocate |byte_length| bytes. Allocated memory will be owned by a created ArrayBuffer and will be deallocated when it is garbage-collected, unless the object is externalized.

pub fn new_with_backing_store<'sc>(
    scope: &mut impl ToLocal<'sc>,
    backing_store: &mut SharedRef<BackingStore>
) -> Local<'sc, ArrayBuffer>

pub fn byte_length(&self) -> usize

Data length in bytes.

pub fn get_backing_store(&self) -> SharedRef<BackingStore>

pub fn new_backing_store(
    scope: &mut impl InIsolate,
    byte_length: usize
) -> UniqueRef<BackingStore>

Returns a new standalone BackingStore that is allocated using the array buffer allocator of the isolate. The result can be later passed to ArrayBuffer::New.

If the allocator returns nullptr, then the function may cause GCs in the given isolate and re-try the allocation. If GCs do not help, then the function will crash with an out-of-memory error.

Methods from Deref<Target = Object>

pub fn set(
    &self,
    context: Local<Context>,
    key: Local<Value>,
    value: Local<Value>
) -> MaybeBool

Set only return Just(true) or Empty(), so if it should never fail, use result.Check().

pub fn create_data_property(
    &self,
    context: Local<Context>,
    key: Local<Name>,
    value: Local<Value>
) -> MaybeBool

Implements CreateDataProperty (ECMA-262, 7.3.4).

Defines a configurable, writable, enumerable property with the given value on the object unless the property already exists and is not configurable or the object is not extensible.

Returns true on success.

pub fn get<'a>(
    &self,
    scope: &mut impl ToLocal<'a>,
    context: Local<Context>,
    key: Local<Value>
) -> Option<Local<'a, Value>>

pub fn get_identity_hash(&self) -> int

Returns the identity hash for this object. The current implementation uses a hidden property on the object to store the identity hash.

The return value will never be 0. Also, it is not guaranteed to be unique.

Trait Implementations

impl Deref for ArrayBuffer

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.