Struct neon::types::JsArrayBuffer

#[repr(transparent)]
pub struct JsArrayBuffer(_);

The standard JS ArrayBuffer type.

Implementations

impl JsArrayBuffer

pub fn new<'a, C: Context<'a>>(cx: &mut C, len: usize) -> JsResult<'a, Self>

Constructs a new JsArrayBuffer object, safely zero-filled.

pub fn external<'a, C, T>(cx: &mut C, data: T) -> Handle<'a, Self> where
    C: Context<'a>,
    T: AsMut<[u8]> + Send, 

Construct a new JsArrayBuffer from bytes allocated by Rust

Trait Implementations

impl Debug for JsArrayBuffer

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

Formats the value using the given formatter.

impl Managed for JsArrayBuffer

fn to_raw(&self) -> Local

fn from_raw(_env: Env, h: Local) -> Self

impl Object for JsArrayBuffer

fn get_opt<'a, V: Value, C: Context<'a>, K: PropertyKey>(
    &self,
    cx: &mut C,
    key: K
) -> NeonResult<Option<Handle<'a, V>>>

Gets a property from a JavaScript object that may be undefined and attempts to downcast the value if it existed.

fn get_value<'a, C: Context<'a>, K: PropertyKey>(
    &self,
    cx: &mut C,
    key: K
) -> NeonResult<Handle<'a, JsValue>>

Gets a property from a JavaScript object as a JsValue.

fn get<'a, V: Value, C: Context<'a>, K: PropertyKey>(
    &self,
    cx: &mut C,
    key: K
) -> NeonResult<Handle<'a, V>>

Gets a property from a JavaScript object and attempts to downcast as a specific type. Equivalent to calling obj.get(&mut cx)?.downcast_or_throw(&mut cx).

fn get_own_property_names<'a, C: Context<'a>>(
    &self,
    cx: &mut C
) -> JsResult<'a, JsArray>

This is supported on crate feature napi-6 only.

fn set<'a, C: Context<'a>, K: PropertyKey, W: Value>(
    &self,
    cx: &mut C,
    key: K,
    val: Handle<'_, W>
) -> NeonResult<bool>

fn root<'a, C: Context<'a>>(&self, cx: &mut C) -> Root<Self>

impl TypedArray for JsArrayBuffer

type Item = u8

fn as_slice<'a: 'b, 'b, C>(&'b self, cx: &'b C) -> &'b [Self::Item] where
    C: Context<'a>, 

Statically checked immutable borrow of binary data.

fn as_mut_slice<'a: 'b, 'b, C>(
    &'b mut self,
    cx: &'b mut C
) -> &'b mut [Self::Item] where
    C: Context<'a>, 

Statically checked mutable borrow of binary data.

fn try_borrow<'a: 'b, 'b, C>(
    &self,
    lock: &'b Lock<'b, C>
) -> Result<Ref<'b, Self::Item>, BorrowError> where
    C: Context<'a>, 

Dynamically checked immutable borrow of binary data, returning an error if the the borrow would overlap with a mutable borrow.

fn try_borrow_mut<'a: 'b, 'b, C>(
    &mut self,
    lock: &'b Lock<'b, C>
) -> Result<RefMut<'b, Self::Item>, BorrowError> where
    C: Context<'a>, 

Dynamically checked mutable borrow of binary data, returning an error if the the borrow would overlap with an active borrow.

impl Value for JsArrayBuffer

fn to_string<'a, C: Context<'a>>(&self, cx: &mut C) -> JsResult<'a, JsString>

fn as_value<'a, C: Context<'a>>(&self, _: &mut C) -> Handle<'a, JsValue>