servo/components/script_bindings/webidls/ReadableStream.webidl
Gregory Terzian 8d39d7706a
Streams: Implement stream pipe-to (#35650)
* implement PipeTo, stub pipe_to

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* define a data structure to manage the piping

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement propagation of errors forward and backward, stub shutdown and shutdown with action

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* adding more fine-grain shutdown variants to state

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement progagate closing backward and forward

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement shutdown and actions

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement reading and writing

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement shutdown continuation and finalize

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix typo

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* add can_gc arguments

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* implement writer close with error propagation

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* move and document wait on pending write

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* more docs

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* write pending reads as part of shutdown

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* turn on piping test suite

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* add comment about using Rust api
improve comment on result
add comment on backpressure

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix multiple propagations

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix writing of chunks

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix error and close propagation
update test expectations

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix warnings

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* improve docs
remove redundant logic in pending writes

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix clippy

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* remove unnecessary expansion of visibility of enqueued value to_jsval

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* remove unnecessary conditional accessing of streams when propagating states

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* improve docs

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* remove unused result var

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fix typo

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* remove redundant logic dealing with closed sources with pending writes

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* add doc links for shutdown actions

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* add comments on the need to return early when shutting down before checking close and error states

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* fmt

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>

* Update test expectations

Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>

* fix can_gc

Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>

---------

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>
Co-authored-by: Taym Haddadi <haddadi.taym@gmail.com>
2025-03-18 11:13:09 +00:00

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
// https://streams.spec.whatwg.org/#readablestream
[Exposed=*] // [Transferable] - See Bug 1562065
interface _ReadableStream {
[Throws]
constructor(optional object underlyingSource, optional QueuingStrategy strategy = {});
// [Throws]
// static ReadableStream from(any asyncIterable);
readonly attribute boolean locked;
[NewObject]
Promise<undefined> cancel(optional any reason);
[Throws]
ReadableStreamReader getReader(optional ReadableStreamGetReaderOptions options = {});
// [Throws]
// ReadableStream pipeThrough(ReadableWritablePair transform, optional StreamPipeOptions options = {});
[NewObject]
Promise<undefined> pipeTo(WritableStream destination, optional StreamPipeOptions options = {});
[Throws]
sequence<ReadableStream> tee();
// [GenerateReturnMethod]
// async iterable<any>(optional ReadableStreamIteratorOptions options = {});
};
enum ReadableStreamType { "bytes" };
enum ReadableStreamReaderMode { "byob" };
dictionary ReadableStreamGetReaderOptions {
ReadableStreamReaderMode mode;
};
/*
dictionary ReadableStreamIteratorOptions {
boolean preventCancel = false;
};
*/
dictionary ReadableWritablePair {
required ReadableStream readable;
required WritableStream writable;
};
dictionary StreamPipeOptions {
boolean preventClose = false;
boolean preventAbort = false;
boolean preventCancel = false;
// AbortSignal signal;
};