Enum UnderlyingSinkType

pub enum UnderlyingSinkType {
    Js {
        abort: RefCell<Option<Rc<UnderlyingSinkAbortCallback<DomTypeHolder>>>>,
        start: RefCell<Option<Rc<UnderlyingSinkStartCallback<DomTypeHolder>>>>,
        close: RefCell<Option<Rc<UnderlyingSinkCloseCallback<DomTypeHolder>>>>,
        write: RefCell<Option<Rc<UnderlyingSinkWriteCallback<DomTypeHolder>>>>,
    },
    Transfer {
        backpressure_promise: Rc<RefCell<Option<Rc<Promise>>>>,
        port: Dom<MessagePort>,
    },
    Transform(Dom<TransformStream>, Rc<Promise>),
}

The type of sink algorithms we are using.

Variants

Js

Algorithms are provided by Js callbacks.

Fields

abort: RefCell<Option<Rc<UnderlyingSinkAbortCallback<DomTypeHolder>>>>

https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-abortalgorithm

start: RefCell<Option<Rc<UnderlyingSinkStartCallback<DomTypeHolder>>>>

close: RefCell<Option<Rc<UnderlyingSinkCloseCallback<DomTypeHolder>>>>

https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-closealgorithm

write: RefCell<Option<Rc<UnderlyingSinkWriteCallback<DomTypeHolder>>>>

https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-writealgorithm

Transfer

Algorithms supporting streams transfer are implemented in Rust. The promise and port used in those algorithms are stored here.

Fields

backpressure_promise: Rc<RefCell<Option<Rc<Promise>>>>

port: Dom<MessagePort>

Transform(Dom<TransformStream>, Rc<Promise>)

Algorithms supporting transform streams are implemented in Rust.

Implementations

impl UnderlyingSinkType

pub(crate) fn new_js( abort: Option<Rc<UnderlyingSinkAbortCallback<DomTypeHolder>>>, start: Option<Rc<UnderlyingSinkStartCallback<DomTypeHolder>>>, close: Option<Rc<UnderlyingSinkCloseCallback<DomTypeHolder>>>, write: Option<Rc<UnderlyingSinkWriteCallback<DomTypeHolder>>>, ) -> Self

Trait Implementations

impl PartialEq for UnderlyingSinkType

fn eq(&self, other: &UnderlyingSinkType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Traceable for UnderlyingSinkType

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.

impl StructuralPartialEq for UnderlyingSinkType