Struct JSArrayBuffer 

pub struct JSArrayBuffer<V: JSValueImpl> { /* private fields */ }

Implementations

impl<V> JSArrayBuffer<V>

where V: JSObjectOps + JSArrayBufferOps,

pub fn from_bytes(ctx: &JSContext<V::Context>, bytes: &[u8]) -> JSResult<Self>

Create a new ArrayBuffer by copying the provided bytes.

pub fn from_bytes_owned<B: Into<Vec<u8>>>( ctx: &JSContext<V::Context>, data: B, ) -> JSResult<Self>

Create a new ArrayBuffer from owned bytes.

pub fn len(&self) -> usize

Get the byte length of the ArrayBuffer.

pub fn is_empty(&self) -> bool

Check if the ArrayBuffer is empty.

pub fn as_slice(&self) -> &[u8]

Get a safe slice view of the ArrayBuffer’s data.

pub fn as_bytes(&self) -> &[u8]

Get a reference to the ArrayBuffer’s raw bytes.

pub fn as_mut_slice(&mut self) -> &mut [u8]

Get a mutable slice view of the ArrayBuffer’s data.

pub fn slice(&self, start: usize, end: usize) -> &[u8]

Get a slice of the ArrayBuffer from start to end.

pub fn to_vec(&self) -> Vec<u8>

Copy the contents of the ArrayBuffer into a new Vec.

pub fn element_count<T>(&self) -> JSResult<usize>

where T: TypedArrayElement,

Compute how many T elements this buffer can represent when aligned.

pub fn validate_alignment<T>(&self, offset: usize) -> bool

where T: TypedArrayElement,

Validate if the given byte offset is properly aligned for T.

pub fn from_object(obj: JSObject<V>) -> Option<Self>

Construct a JSArrayBuffer from a JSObject if it is an ArrayBuffer.

Methods from Deref<Target = JSObject<V>>

pub fn borrow<T>(&self) -> JSResult<Ref<'_, T>>

where T: JSClass<V>,

Borrow the underlying data from an instance

pub fn borrow_mut<T>(&self) -> JSResult<RefMut<'_, T>>

where T: JSClass<V>,

Mutably borrow the underlying data from an instance

pub fn prototype(&self, proto: JSObject<V>) -> bool

pub fn to_json_string(&self) -> JSResult<String>

Convert JSObject to JSON string using JavaScript’s JSON.stringify

pub fn set<'a, K, KV>(&'a self, k: K, kv: KV) -> JSResult<&'a Self>

where K: Into<PropertyKey<'a, V>>, KV: IntoJSValue<V>,

pub fn define_property<'a, K>( &'a self, k: K, descriptor: PropertyDescriptor<V>, ) -> JSResult<&'a Self>

where K: Into<PropertyKey<'a, V>>,

pub fn delete<'a, K>(&'a self, k: K) -> JSResult<bool>

where K: Into<PropertyKey<'a, V>>,

pub fn has_property<'a, K>(&self, k: K) -> JSResult<bool>

where K: Into<PropertyKey<'a, V>>,

pub fn get<'a, K, T>(&'a self, k: K) -> JSResult<T>

where K: Into<PropertyKey<'a, V>>, T: FromJSValue<V>,

pub fn get_opt<'a, K, T>(&'a self, k: K) -> JSResult<Option<T>>

where K: Into<PropertyKey<'a, V>>, T: FromJSValue<V>,

pub fn as_js_value(&self) -> &JSValue<V>

pub fn as_mut_value(&mut self) -> &mut V

Returns a mutable reference to the underlying/raw JSValue

pub fn entries(&self) -> JSResult<Vec<Entry<V>>>

Returns an iterator over the object’s own enumerable string-keyed property [key, value] pairs.

pub fn entries_as<K, V2>(&self) -> JSResult<Vec<(K, V2)>>

where K: FromJSValue<V>, V2: FromJSValue<V>,

Returns entries with converted types

pub fn own_keys(&self) -> JSResult<Vec<V>>

Returns an array of a given object’s own enumerable property names

pub fn values(&self) -> JSResult<impl Iterator<Item = JSValue<V>> + '_>

Returns an iterator over the object’s own enumerable string-keyed property values.

pub fn values_as<T>(&self) -> JSResult<Vec<T>>

where T: FromJSValue<V>,

Returns values with converted type

pub fn keys(&self) -> JSResult<impl Iterator<Item = JSValue<V>> + '_>

Returns an iterator over the object’s own enumerable string-keyed property names.

pub fn keys_as<K>(&self) -> JSResult<Vec<K>>

where K: FromJSValue<V>,

Returns keys with converted type

Methods from Deref<Target = JSValue<V>>

pub fn type_of(&self) -> JSValueType

pub fn is_object(&self) -> bool

pub fn is_array(&self) -> bool

pub fn is_array_buffer(&self) -> bool

pub fn is_function(&self) -> bool

pub fn is_constructor(&self) -> bool

pub fn is_promise(&self) -> bool

pub fn is_error(&self) -> bool

pub fn is_exception(&self) -> bool

pub fn is_undefined(&self) -> bool

pub fn is_null(&self) -> bool

pub fn is_boolean(&self) -> bool

pub fn is_number(&self) -> bool

pub fn is_bigint(&self) -> bool

pub fn is_string(&self) -> bool

pub fn is_symbol(&self) -> bool

pub fn is_date(&self) -> bool

pub fn is_proxy(&self) -> bool

pub fn as_value(&self) -> &V

pub fn context(&self) -> JSContext<V::Context>

Returns the context associated with this value.

Trait Implementations

impl<V: JSValueImpl> Clone for JSArrayBuffer<V>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V: JSValueImpl> Deref for JSArrayBuffer<V>

type Target = JSObject<V>

The resulting type after dereferencing.

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

Dereferences the value.

impl<V: JSValueImpl> DerefMut for JSArrayBuffer<V>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<V> FromJSValue<V> for JSArrayBuffer<V>

where V: JSTypeOf,

fn from_js_value( ctx: &JSContext<V::Context>, value: JSValue<V>, ) -> JSResult<Self>

impl<V> IntoJSValue<V> for JSArrayBuffer<V>

where V: JSValueImpl,

fn into_js_value(self, _ctx: &JSContext<V::Context>) -> JSValue<V>

impl<V: JSValueImpl> JSParameterType for JSArrayBuffer<V>