[][src]Struct js_sys::Float32Array

#[repr(transparent)]
pub struct Float32Array { /* fields omitted */ }

Methods

impl Float32Array[src]

pub fn new(constructor_arg: &JsValue) -> Float32Array[src]

The Float32Array() constructor creates an array of unsigned 8-bit integers.

MDN documentation

impl Float32Array[src]

pub fn new_with_length(length: u32) -> Float32Array[src]

An Float32Array() which creates an array with an internal buffer large enough for length elements.

MDN documentation

impl Float32Array[src]

pub fn new_with_byte_offset(buffer: &JsValue, byte_offset: u32) -> Float32Array[src]

An Float32Array() which creates an array with the given buffer but is a view starting at byte_offset.

MDN documentation

impl Float32Array[src]

pub fn new_with_byte_offset_and_length(
    buffer: &JsValue,
    byte_offset: u32,
    length: u32
) -> Float32Array
[src]

An Float32Array() which creates an array with the given buffer but is a view starting at byte_offset for length elements.

MDN documentation

impl Float32Array[src]

pub fn fill(&self, value: f32, start: u32, end: u32) -> Float32Array[src]

The fill() method fills all the elements of an array from a start index to an end index with a static value. The end index is not included.

MDN documentation

impl Float32Array[src]

pub fn buffer(&self) -> ArrayBuffer[src]

The buffer accessor property represents the ArrayBuffer referenced by a TypedArray at construction time.

impl Float32Array[src]

pub fn subarray(&self, begin: u32, end: u32) -> Float32Array[src]

The subarray() method stores multiple values in the typed array, reading input values from a specified array.

impl Float32Array[src]

pub fn slice(&self, begin: u32, end: u32) -> Float32Array[src]

The slice() method returns a shallow copy of a portion of a typed array into a new typed array object. This method has the same algorithm as Array.prototype.slice().

impl Float32Array[src]

pub fn for_each(&self, callback: &mut dyn FnMut(f32, u32, Float32Array))[src]

The forEach() method executes a provided function once per array element. This method has the same algorithm as Array.prototype.forEach(). TypedArray is one of the typed array types here.

impl Float32Array[src]

pub fn length(&self) -> u32[src]

The length accessor property represents the length (in elements) of a typed array.

impl Float32Array[src]

pub fn byte_length(&self) -> u32[src]

The byteLength accessor property represents the length (in bytes) of a typed array.

impl Float32Array[src]

pub fn byte_offset(&self) -> u32[src]

The byteOffset accessor property represents the offset (in bytes) of a typed array from the start of its ArrayBuffer.

impl Float32Array[src]

pub fn set(&self, src: &JsValue, offset: u32)[src]

The set() method stores multiple values in the typed array, reading input values from a specified array.

impl Float32Array[src]

pub unsafe fn view(rust: &[f32]) -> Float32Array[src]

Creates a JS typed array which is a view into wasm's linear memory at the slice specified.

This function returns a new typed array which is a view into wasm's memory. This view does not copy the underlying data.

Unsafety

Views into WebAssembly memory are only valid so long as the backing buffer isn't resized in JS. Once this function is called any future calls to Box::new (or malloc of any form) may cause the returned value here to be invalidated. Use with caution!

Additionally the returned object can be safely mutated but the input slice isn't guaranteed to be mutable.

Finally, the returned object is disconnected from the input slice's lifetime, so there's no guarantee that the data is read at the right time.

pub fn copy_to(&self, dst: &mut [f32])[src]

Copy the contents of this JS typed array into the destination Rust slice.

This function will efficiently copy the memory from a typed array into this wasm module's own linear memory, initializing the memory destination provided.

Panics

This function will panic if this typed array's length is different than the length of the provided dst array.

Methods from Deref<Target = Object>

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

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[src]

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[src]

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

MDN documentation

pub fn to_locale_string(&self) -> JsString[src]

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[src]

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

MDN documentation

pub fn value_of(&self) -> Object[src]

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

MDN documentation

Trait Implementations

impl AsRef<JsValue> for Float32Array[src]

impl AsRef<Object> for Float32Array[src]

impl From<JsValue> for Float32Array[src]

impl From<Float32Array> for JsValue[src]

impl From<Float32Array> for Object[src]

impl Clone for Float32Array

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl Debug for Float32Array

impl Deref for Float32Array[src]

type Target = Object

The resulting type after dereferencing.

impl FromWasmAbi for Float32Array[src]

type Abi = <JsValue as FromWasmAbi>::Abi

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

impl IntoWasmAbi for Float32Array[src]

type Abi = <JsValue as IntoWasmAbi>::Abi

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

impl<'a> IntoWasmAbi for &'a Float32Array[src]

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

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

impl WasmDescribe for Float32Array[src]

impl OptionFromWasmAbi for Float32Array[src]

impl OptionIntoWasmAbi for Float32Array[src]

impl<'a> OptionIntoWasmAbi for &'a Float32Array[src]

impl RefFromWasmAbi for Float32Array[src]

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<Float32Array>

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. Read more

impl JsCast for Float32Array[src]

fn is_instance_of<T>(&self) -> bool where
    T: JsCast
[src]

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

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

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

fn dyn_ref<T>(&self) -> Option<&T> where
    T: JsCast
[src]

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

fn unchecked_into<T>(self) -> T where
    T: JsCast
[src]

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

fn unchecked_ref<T>(&self) -> &T where
    T: JsCast
[src]

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

Auto Trait Implementations

impl !Send for Float32Array

impl !Sync for Float32Array

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> BorrowMut for T where
    T: ?Sized
[src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> ReturnWasmAbi for T where
    T: IntoWasmAbi
[src]

type Abi = <T as IntoWasmAbi>::Abi

Same as IntoWasmAbi::Abi