Struct rust_jsc::JSArrayBuffer

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pub struct JSArrayBuffer { /* private fields */ }

Implementations§

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impl JSArrayBuffer

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pub fn from_object(object: JSObject) -> Self

Creates a new JSArrayBuffer object from a given JSObject.

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pub fn len(&self) -> JSResult<usize>

Gets the length of the ArrayBuffer.

§Example

use rust_jsc::{JSContext, JSArrayBuffer};

let ctx = JSContext::new();
let array_buffer = ctx.evaluate_script("new ArrayBuffer(10)", None).unwrap();
let array_buffer = JSArrayBuffer::from_object(array_buffer.as_object().unwrap());
assert_eq!(array_buffer.len().unwrap(), 10);

§Errors

If an exception is thrown while getting the length. A JSError will be returned.

§Returns

The length of the ArrayBuffer object or 0 if the object is not an ArrayBuffer object.

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pub fn bytes(&self) -> JSResult<&mut [u8]>

Gets the bytes of the ArrayBuffer.

§Example

use rust_jsc::{JSContext, JSArrayBuffer};

let ctx = JSContext::new();
let array_buffer = ctx.evaluate_script("new ArrayBuffer(10)", None).unwrap();
let array_buffer = JSArrayBuffer::from_object(array_buffer.as_object().unwrap());
assert_eq!(array_buffer.bytes().unwrap().len(), 10);

§Errors

If an exception is thrown while getting the bytes. A JSError will be returned.

§Returns

The bytes of the ArrayBuffer object or null if the object is not an ArrayBuffer object.

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pub fn new(ctx: &JSContext, bytes: &mut [u8]) -> JSResult<Self>

Gets the bytes of the ArrayBuffer as a Vec.

§Example

use rust_jsc::{JSContext, JSArrayBuffer};

let ctx = JSContext::new();
let array_buffer = ctx.evaluate_script("new ArrayBuffer(10)", None).unwrap();
let array_buffer = JSArrayBuffer::from_object(array_buffer.as_object().unwrap());
assert_eq!(array_buffer.as_vec().unwrap().len(), 10);

§Errors

If an exception is thrown while getting the bytes. A JSError will be returned.

§Returns

The bytes of the ArrayBuffer object as a Vec or null if the object is not an ArrayBuffer object.

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pub fn as_vec(&self) -> JSResult<Vec<u8>>

Gets the bytes of the ArrayBuffer as a Vec.

§Example

use rust_jsc::{JSContext, JSArrayBuffer};

let ctx = JSContext::new();
let array_buffer = ctx.evaluate_script("new ArrayBuffer(10)", None).unwrap();
let array_buffer = JSArrayBuffer::from_object(array_buffer.as_object().unwrap());
assert_eq!(array_buffer.as_vec().unwrap().len(), 10);