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LibWeb: Add AO transform_stream_default_source_pull_algorithm()

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This commit is contained in:
Kenneth Myhra 2023-07-08 07:03:37 +02:00 • committed by Andreas Kling
commit f91c150cfc
Notes: sideshowbarker 2024-07-17 07:11:12 +09:00
2 changed files with 16 additions and 0 deletions
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15
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -2993,6 +2993,21 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_
return transform_stream_default_controller_perform_transform(*controller, chunk);
}
WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_source_pull_algorithm(TransformStream& stream)
{
// 1. Assert: stream.[[backpressure]] is true.
VERIFY(stream.backpressure().has_value() && *stream.backpressure());
// 2. Assert: stream.[[backpressureChangePromise]] is not undefined.
VERIFY(stream.backpressure_change_promise());
// 3. Perform ! TransformStreamSetBackpressure(stream, false).
TRY(transform_stream_set_backpressure(stream, false));
// 4. Return stream.[[backpressureChangePromise]].
return JS::NonnullGCPtr { *stream.backpressure_change_promise() };
}
// https://streams.spec.whatwg.org/#transform-stream-error
WebIDL::ExceptionOr<void> transform_stream_error(TransformStream& stream, JS::Value error)
{

1
Userland/Libraries/LibWeb/Streams/AbstractOperations.h
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@ -144,6 +144,7 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_
WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_sink_abort_algorithm(TransformStream&, JS::Value reason);
WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_sink_close_algorithm(TransformStream&);
WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_sink_write_algorithm(TransformStream&, JS::Value chunk);
WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> transform_stream_default_source_pull_algorithm(TransformStream&);
WebIDL::ExceptionOr<void> transform_stream_error(TransformStream&, JS::Value error);
WebIDL::ExceptionOr<void> transform_stream_error_writable_and_unblock_write(TransformStream&, JS::Value error);
WebIDL::ExceptionOr<void> transform_stream_set_backpressure(TransformStream&, bool backpressure);