Struct js_sys::ArrayBuffer

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#[repr(transparent)]
pub struct ArrayBuffer { /* fields omitted */ }

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Methods

impl ArrayBuffer

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pub fn new(length: u32) -> ArrayBuffer

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The ArrayBuffer object is used to represent a generic, fixed-length raw binary data buffer. You cannot directly manipulate the contents of an ArrayBuffer; instead, you create one of the typed array objects or a DataView object which represents the buffer in a specific format, and use that to read and write the contents of the buffer.

MDN documentation

impl ArrayBuffer

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pub fn byte_length(&self) -> u32

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The byteLength property of an object which is an instance of type ArrayBuffer it's an accessor property whose set accessor function is undefined, meaning that you can only read this property. The value is established when the array is constructed and cannot be changed. This property returns 0 if this ArrayBuffer has been detached.

MDN documentation

impl ArrayBuffer

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pub fn is_view(value: &JsValue) -> bool

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The isView() method returns true if arg is one of the ArrayBuffer views, such as typed array objects or a DataView; false otherwise.

MDN documentation

impl ArrayBuffer

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pub fn slice(&self, begin: u32) -> ArrayBuffer

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The slice() method returns a new ArrayBuffer whose contents are a copy of this ArrayBuffer's bytes from begin, inclusive, up to end, exclusive.

MDN documentation

impl ArrayBuffer

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pub fn slice_with_end(&self, begin: u32, end: u32) -> ArrayBuffer

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Like slice() but with the end argument.

MDN documentation

Methods from Deref<Target = Object>

pub fn has_own_property(&self, property: &JsValue) -> bool

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The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

MDN documentation

pub fn is_prototype_of(&self, value: &JsValue) -> bool

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The isPrototypeOf() method checks if an object exists in another object's prototype chain.

MDN documentation

pub fn property_is_enumerable(&self, property: &JsValue) -> bool

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The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

MDN documentation

pub fn to_locale_string(&self) -> JsString

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The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

MDN documentation

pub fn to_string(&self) -> JsString

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The toString() method returns a string representing the object.

MDN documentation

pub fn value_of(&self) -> Object

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The valueOf() method returns the primitive value of the specified object.

MDN documentation

Trait Implementations

impl AsRef<JsValue> for ArrayBuffer

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fn as_ref(&self) -> &JsValue

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Performs the conversion.

impl AsRef<Object> for ArrayBuffer

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fn as_ref(&self) -> &Object

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Performs the conversion.

impl From<JsValue> for ArrayBuffer

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fn from(obj: JsValue) -> ArrayBuffer

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Performs the conversion.

impl From<ArrayBuffer> for JsValue

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fn from(obj: ArrayBuffer) -> JsValue

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Performs the conversion.

impl From<ArrayBuffer> for Object

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fn from(obj: ArrayBuffer) -> Object

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Performs the conversion.

impl Clone for ArrayBuffer

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fn clone(&self) -> ArrayBuffer

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Debug for ArrayBuffer

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

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Formats the value using the given formatter.

impl Deref for ArrayBuffer

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type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

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Dereferences the value.

impl WasmDescribe for ArrayBuffer

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fn describe()

impl IntoWasmAbi for ArrayBuffer

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type Abi = <JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self, extra: &mut dyn Stack) -> Self::Abi

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Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl<'a> IntoWasmAbi for &'a ArrayBuffer

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type Abi = <&'a JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self, extra: &mut dyn Stack) -> Self::Abi

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Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl FromWasmAbi for ArrayBuffer

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type Abi = <JsValue as FromWasmAbi>::Abi

The wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi, extra: &mut dyn Stack) -> Self

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Recover a Self from Self::Abi.

impl OptionFromWasmAbi for ArrayBuffer

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fn is_none(abi: &Self::Abi) -> bool

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Tests whether the argument is a "none" instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl RefFromWasmAbi for ArrayBuffer

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type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<ArrayBuffer>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don't persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi, extra: &mut dyn Stack) -> Self::Anchor

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Recover a Self::Anchor from Self::Abi.

impl OptionIntoWasmAbi for ArrayBuffer

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fn none() -> Self::Abi

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Returns an ABI instance indicating "none", which JS will interpret as the None branch of this option.

impl<'a> OptionIntoWasmAbi for &'a ArrayBuffer

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fn none() -> Self::Abi

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Returns an ABI instance indicating "none", which JS will interpret as the None branch of this option.

impl JsCast for ArrayBuffer

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fn instanceof(val: &JsValue) -> bool

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Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

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Performs a zero-cost unchecked conversion from a JsValue into an instance of Self

fn unchecked_from_js_ref(val: &JsValue) -> &Self

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Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self.

fn is_instance_of<T>(&self) -> bool where     T: JsCast,

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Test whether this JS value is an instance of the type T.

fn dyn_into<T>(self) -> Result<T, Self> where     T: JsCast,

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Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn dyn_ref<T>(&self) -> Option<&T> where     T: JsCast,

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Performs a dynamic cast (checked at runtime) of this value into the target type T.

fn unchecked_into<T>(self) -> T where     T: JsCast,

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Performs a zero-cost unchecked cast into the specified type.

fn unchecked_ref<T>(&self) -> &T where     T: JsCast,

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Performs a zero-cost unchecked cast into a reference to the specified type.