Struct neon::types::BinaryData

#[repr(C)]pub struct BinaryData<'a> { /* fields omitted */ }

A reference to the internal backing buffer data of a Buffer or ArrayBuffer object, which can be accessed via the Borrow and BorrowMut traits.

Implementations

impl<'a> BinaryData<'a>

pub fn as_slice<T: BinaryViewType>(self) -> &'a [T]

Produces an immutable slice as a view into the contents of this buffer.

Example:

let b: Handle<JsArrayBuffer> = cx.argument(0)?;
let (x, y) = cx.borrow(&b, |data| {
    let slice = data.as_slice::<i32>();
    (slice[0], slice[1])
});

pub fn as_mut_slice<T: BinaryViewType>(self) -> &'a mut [T]

Produces a mutable slice as a view into the contents of this buffer.

Example:

let mut b: Handle<JsArrayBuffer> = cx.argument(0)?;
cx.borrow_mut(&mut b, |data| {
    let slice = data.as_mut_slice::<f64>();
    slice[0] /= 2.0;
    slice[1] *= 2.0;
});

pub fn len(self) -> usize

Produces the length of the buffer, in bytes.

pub fn is_empty(self) -> bool

Returns true if the buffer is empty

Trait Implementations

impl<'a> Clone for BinaryData<'a>

fn clone(&self) -> BinaryData<'a>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for BinaryData<'a>