Struct Float16Array 

#[repr(transparent)]
pub struct Float16Array {
    pub obj: Object,
}

Fields

obj: Object

Implementations

impl Float16Array

pub fn new(constructor_arg: &JsValue) -> Float16Array

The Float16Array() constructor creates a new array.

MDN documentation

impl Float16Array

pub fn new_with_length(length: u32) -> Float16Array

The Float16Array() constructor creates an array with an internal buffer large enough for length elements.

MDN documentation

impl Float16Array

pub fn new_with_byte_offset(buffer: &JsValue, byte_offset: u32) -> Float16Array

The Float16Array() constructor creates an array with the given buffer but is a view starting at byte_offset.

MDN documentation

impl Float16Array

pub fn new_with_byte_offset_and_length( buffer: &JsValue, byte_offset: u32, length: u32, ) -> Float16Array

The Float16Array() constructor creates an array with the given buffer but is a view starting at byte_offset for length elements.

MDN documentation

impl Float16Array

pub fn fill_with_f32(&self, value: f32, start: u32, end: u32) -> Float16Array

The fill() method fills all elements from a start index to an end index with a static f32 value.

MDN documentation

impl Float16Array

pub fn buffer(&self) -> ArrayBuffer

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

impl Float16Array

pub fn subarray(&self, begin: u32, end: u32) -> Float16Array

The subarray() method returns a new TypedArray on the same ArrayBuffer store and with the same element types as this array.

impl Float16Array

pub fn slice(&self, begin: u32, end: u32) -> Float16Array

The slice() method returns a shallow copy of a portion of a typed array into a new typed array object.

impl Float16Array

pub fn for_each_as_f32(&self, callback: &mut dyn FnMut(f32, u32, Float16Array))

The forEach() method executes a provided function once per array element, passing values as f32.

impl Float16Array

pub fn try_for_each_as_f32( &self, callback: &mut dyn FnMut(f32, u32, Float16Array) -> Result<(), JsError>, ) -> Result<(), JsValue>

The forEach() method executes a provided function once per array element, passing values as f32.

impl Float16Array

pub fn length(&self) -> u32

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

impl Float16Array

pub fn byte_length(&self) -> u32

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

impl Float16Array

pub fn byte_offset(&self) -> u32

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

impl Float16Array

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

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

impl Float16Array

pub fn at_as_f32(&self, idx: i32) -> Option<f32>

Gets the value at idx as an f32, counting from the end if negative.

impl Float16Array

pub fn copy_within(&self, target: i32, start: i32, end: i32) -> Float16Array

The copyWithin() method shallow copies part of a typed array to another location in the same typed array and returns it, without modifying its size.

MDN documentation

impl Float16Array

pub fn get_index_as_f32(&self, idx: u32) -> f32

Gets the value at idx as an f32, equivalent to JavaScript arr[idx].

impl Float16Array

pub fn set_index_from_f32(&self, idx: u32, value: f32)

Sets the value at idx from an f32, equivalent to JavaScript arr[idx] = value.

impl Float16Array

pub fn new_from_u16_slice(slice: &[u16]) -> Float16Array

Creates an array from raw IEEE 754 binary16 bit patterns.

This pairs naturally with the optional half crate:

use half::f16;
use js_sys::Float16Array;

let values = [f16::from_f32(1.0), f16::from_f32(-2.0)];
let bits = values.map(f16::to_bits);
let array = Float16Array::new_from_u16_slice(&bits);

pub fn copy_to_u16_slice(&self, dst: &mut [u16])

Copy the raw IEEE 754 binary16 bit patterns from this JS typed array into the destination Rust slice.

Panics

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

Values copied into dst can be converted back into half::f16 with half::f16::from_bits.

pub fn copy_from_u16_slice(&self, src: &[u16])

Copy raw IEEE 754 binary16 bit patterns from the source Rust slice into this JS typed array.

Panics

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

When using the optional half crate, populate src with half::f16::to_bits().

pub fn to_u16_vec(&self) -> Vec<u16>

Efficiently copies the contents of this JS typed array into a new Vec of raw IEEE 754 binary16 bit patterns.

This makes it easy to round-trip through the optional half crate:

use half::f16;

let bits = array.to_u16_vec();
let values: Vec<f16> = bits.into_iter().map(f16::from_bits).collect();

Methods from Deref<Target = Object>

pub fn constructor(&self) -> Function

The constructor property returns a reference to the Object constructor function that created the instance object.

MDN documentation

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

👎Deprecated:

Use Object::hasOwn instead.

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

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

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

MDN documentation

pub fn to_locale_string(&self) -> JsString

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

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

MDN documentation

pub fn to_js_string(&self) -> JsString

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

MDN documentation

pub fn value_of(&self) -> Object

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

MDN documentation

Methods from Deref<Target = JsValue>

pub const NULL: JsValue

pub const UNDEFINED: JsValue

pub const TRUE: JsValue

pub const FALSE: JsValue

pub fn id(&self) -> u64

Get the heap ID for this value.

This is used internally for encoding values to send to JS.

pub fn unchecked_into_f64(&self) -> f64

Returns the value as f64 without type checking. Used by serde-wasm-bindgen for numeric conversions.

pub fn has_type<T>(&self) -> bool

where T: JsCast,

Check if this value is an instance of a specific JS type.

pub fn checked_div(&self, rhs: &JsValue) -> JsValue

Checked division.

pub fn pow(&self, rhs: &JsValue) -> JsValue

Power operation.

pub fn bit_and(&self, rhs: &JsValue) -> JsValue

Bitwise AND.

pub fn bit_or(&self, rhs: &JsValue) -> JsValue

Bitwise OR.

pub fn bit_xor(&self, rhs: &JsValue) -> JsValue

Bitwise XOR.

pub fn bit_not(&self) -> JsValue

Bitwise NOT.

pub fn shl(&self, rhs: &JsValue) -> JsValue

Left shift.

pub fn shr(&self, rhs: &JsValue) -> JsValue

Signed right shift.

pub fn unsigned_shr(&self, rhs: &JsValue) -> u32

Unsigned right shift.

pub fn add(&self, rhs: &JsValue) -> JsValue

Add.

pub fn sub(&self, rhs: &JsValue) -> JsValue

Subtract.

pub fn mul(&self, rhs: &JsValue) -> JsValue

Multiply.

pub fn div(&self, rhs: &JsValue) -> JsValue

Divide.

pub fn rem(&self, rhs: &JsValue) -> JsValue

Remainder.

pub fn neg(&self) -> JsValue

Negate.

pub fn lt(&self, other: &JsValue) -> bool

Less than comparison.

pub fn le(&self, other: &JsValue) -> bool

Less than or equal comparison.

pub fn gt(&self, other: &JsValue) -> bool

Greater than comparison.

pub fn ge(&self, other: &JsValue) -> bool

Greater than or equal comparison.

pub fn loose_eq(&self, other: &JsValue) -> bool

Loose equality (==).

pub fn is_falsy(&self) -> bool

Check if this value is a falsy value in JavaScript.

pub fn is_truthy(&self) -> bool

Check if this value is a truthy value in JavaScript.

pub fn is_object(&self) -> bool

Check if this value is an object.

pub fn is_function(&self) -> bool

Check if this value is a function.

pub fn is_string(&self) -> bool

Check if this value is a string.

pub fn is_symbol(&self) -> bool

Check if this value is a symbol.

pub fn is_bigint(&self) -> bool

Check if this value is a bigint.

pub fn is_array(&self) -> bool

Check if this value is an Array.

pub fn is_undefined(&self) -> bool

Check if this value is undefined.

pub fn is_null(&self) -> bool

Check if this value is null.

pub fn is_null_or_undefined(&self) -> bool

Check if this value is null or undefined.

pub fn js_typeof(&self) -> JsValue

Get the typeof this value as a string.

pub fn js_in(&self, obj: &JsValue) -> bool

Check if this value has a property with the given name.

pub fn as_bool(&self) -> Option<bool>

Get the value as a bool.

pub fn as_f64(&self) -> Option<f64>

Get the value as an f64.

pub fn as_string(&self) -> Option<String>

Get the value as a string.

pub fn as_debug_string(&self) -> String

Get a debug string representation of the value.

Trait Implementations

impl AsRef<Float16Array> for Float16Array

fn as_ref(&self) -> &Float16Array

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for Float16Array

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<Object> for Float16Array

fn as_ref(&self) -> &Object

Converts this type into a shared reference of the (usually inferred) input type.

impl BatchableResult for Float16Array

fn try_placeholder(batch: &mut Runtime) -> Option<Self>

Returns Some(placeholder) for opaque types that can be batched, None for types that require flushing to get the actual value.

impl BinaryDecode for Float16Array

fn decode(decoder: &mut DecodedData<'_>) -> Result<Self, DecodeError>

impl BinaryEncode for Float16Array

fn encode(self, encoder: &mut EncodedData)

impl Clone for Float16Array

fn clone(&self) -> Float16Array

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Float16Array

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

Formats the value using the given formatter.

impl Default for Float16Array

fn default() -> Self

Returns the “default value” for a type.

impl Deref for Float16Array

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

Dereferences the value.

impl EncodeTypeDef for Float16Array

fn encode_type_def(buf: &mut Vec<u8>)

Encode this type’s definition into the buffer. For primitives, this is just the TypeTag byte. For callbacks, this includes param count, param types, and return type.

impl ErasableGeneric for Float16Array

type Repr = JsValue

impl From<Float16Array> for JsValue

fn from(val: Float16Array) -> Self

Converts to this type from the input type.

impl From<Float16Array> for Object

fn from(val: Float16Array) -> Object

Converts to this type from the input type.

impl From<JsValue> for Float16Array

fn from(val: JsValue) -> Self

Converts to this type from the input type.

impl IntoJsGeneric for Float16Array

where Float16Array: JsGeneric,

type JsCanon = Float16Array

fn to_js(self) -> Self::JsCanon

impl JsCast for Float16Array

fn instanceof(__val: &JsValue) -> bool

Check if a JsValue is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

Unchecked cast from JsValue to this type.

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

Unchecked cast from a JsValue reference to a reference of this type.

fn is_type_of(val: &JsValue) -> bool

Performs a dynamic type check to see whether the JsValue provided is a value of this type.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

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

where T: JsCast,

Try to cast this value to type T.

fn dyn_ref<T>(&self) -> Option<&T>

where T: JsCast,

Try to get a reference to type T from this value.

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

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

fn unchecked_into<T>(self) -> T

where T: JsCast,

Unchecked cast to another type.

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

Unchecked cast to a reference of another type.

impl Promising for Float16Array

type Resolution = Float16Array

impl TypedArray for Float16Array

impl UpcastFrom<Float16Array> for Float16Array

impl UpcastFrom<Float16Array> for JsOption<JsValue>

impl UpcastFrom<Float16Array> for JsOption<Float16Array>

impl UpcastFrom<Float16Array> for JsOption<Object>

impl UpcastFrom<Float16Array> for JsValue

impl UpcastFrom<Float16Array> for Object