Struct JSTypedArray 

pub struct JSTypedArray<'a> { /* private fields */ }

A JavaScript Typed Array object.

Implementations

impl<'a> JSTypedArray<'a>

pub fn new( ctx: &'a JSContext, array_type: JSTypedArrayType, length: usize, ) -> Result<Self, JSValue<'a>>

Creates a Javascript Typed Array object with the given number of elements all initialized to zero.

Returns Err if an exception occurred while creating the object.

pub fn new_copy_from_bytes( ctx: &'a JSContext, array_type: JSTypedArrayType, bytes: &[u8], ) -> Result<Self, JSValue<'a>>

Creates a JavaScript Typed Array object from existing bytes buffer.

This will copy the bytes and manages its memory.

Returns Err if an exception occurred while creating the object.

pub fn len(&self) -> Result<usize, JSValue<'a>>

Returns the length of a JavaScript Typed Array object.

Returns Err if an exception occurred while getting the length.

pub fn is_empty(&self) -> Result<bool, JSValue<'a>>

Returns whether the JavaScript Typed Array object is empty.

Returns Err if an exception occurred while getting the length.

pub fn byte_length(&self) -> Result<usize, JSValue<'a>>

Returns the byte length of a JavaScript Typed Array object.

Returns Err if an exception occurred while getting the byte length.

pub fn byte_offset(&self) -> Result<usize, JSValue<'a>>

Returns the byte offset of a JavaScript Typed Array object.

Returns Err if an exception occurred while getting the byte offset.

pub fn ty(&self) -> Result<JSTypedArrayType, JSValue<'a>>

Returns the type of a JavaScript Typed Array object.

Returns Err if an exception occurred while getting the type, or JSTypedArrayType::None if object isn’t a Typed Array.

Methods from Deref<Target = JSValue<'a>>

pub fn get_type(&self) -> JSType

Returns a JavaScript value’s type.

pub fn is_undefined(&self) -> bool

Returns true if the value is undefined.

pub fn is_null(&self) -> bool

Returns true if the value is null.

pub fn is_date(&self) -> bool

Returns true if the value is a JavaScript date object.

pub fn is_array(&self) -> bool

Returns true if the value is a JavaScript array.

pub fn is_symbol(&self) -> bool

Returns true if the value’s type is the symbol type

pub fn is_object(&self) -> bool

Returns true if the value is an object.

pub fn is_string(&self) -> bool

Returns true if the value is a string.

pub fn is_number(&self) -> bool

Returns true if the value is a number.

pub fn is_boolean(&self) -> bool

Returns true if the value is a boolean.

pub fn is_typed_array(&self) -> bool

Returns true if the value is a Typed Array.

pub fn as_object(&self) -> Result<JSObject<'a>, JSValue<'a>>

Converts a JavaScript value to object.

Returns an Err if an exception is thrown.

pub fn as_string(&self) -> Result<JSString, JSValue<'a>>

Converts a JavaScript value to string.

Returns an Err if an exception is thrown.

pub fn as_number(&self) -> Result<f64, JSValue<'a>>

Converts a JavaScript value to number.

Returns an Err if an exception is thrown.

pub fn as_boolean(&self) -> bool

Converts a JavaScript value to boolean.

pub fn as_typed_array(&self) -> Result<JSTypedArray<'a>, JSValue<'a>>

Converts a JavaScript value to a typed array.

Returns an Err if the value is not a typed array, or if an exception is thrown.

pub fn to_json_string(&self) -> Result<JSString, JSValue<'a>>

Converts a JavaScript value to JSON serialized representation of a JS value.

Returns an Err if an exception is thrown.

Trait Implementations

impl<'a> AsJSValue<'a> for JSTypedArray<'a>

fn into_value(self) -> JSValue<'a>

fn as_value(&self) -> &JSValue<'a>

impl<'a> AsRef<JSValue<'a>> for JSTypedArray<'a>

fn as_ref(&self) -> &JSValue<'a>

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

impl<'a> Clone for JSTypedArray<'a>

fn clone(&self) -> JSTypedArray<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for JSTypedArray<'a>

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

Formats the value using the given formatter.

impl<'a> Deref for JSTypedArray<'a>

type Target = JSValue<'a>

The resulting type after dereferencing.

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

Dereferences the value.