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LibWeb: Implement the CreateReadableByteStream AO

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Timothy Flynn 2024-01-27 09:08:46 -05:00 committed by Andreas Kling
parent 8e20a44380
commit c8c3866101
Notes: sideshowbarker 2024-07-17 03:30:41 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/c8c3866101
Pull-request: https://github.com/SerenityOS/serenity/pull/22962
Issue: https://github.com/SerenityOS/serenity/issues/22960
2 changed files with 20 additions and 0 deletions
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19
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -1741,6 +1741,25 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<ReadableStream>> create_readable_stream(JS:
return stream;
}
// https://streams.spec.whatwg.org/#abstract-opdef-createreadablebytestream
WebIDL::ExceptionOr<JS::NonnullGCPtr<ReadableStream>> create_readable_byte_stream(JS::Realm& realm, StartAlgorithm&& start_algorithm, PullAlgorithm&& pull_algorithm, CancelAlgorithm&& cancel_algorithm)
{
// 1. Let stream be a new ReadableStream.
auto stream = realm.heap().allocate<ReadableStream>(realm, realm);
// 2. Perform ! InitializeReadableStream(stream).
initialize_readable_stream(*stream);
// 3. Let controller be a new ReadableByteStreamController.
auto controller = realm.heap().allocate<ReadableByteStreamController>(realm, realm);
// 4. Perform ? SetUpReadableByteStreamController(stream, controller, startAlgorithm, pullAlgorithm, cancelAlgorithm, 0, undefined).
TRY(set_up_readable_byte_stream_controller(stream, controller, move(start_algorithm), move(pull_algorithm), move(cancel_algorithm), 0, JS::js_undefined()));
// 5. Return stream.
return stream;
}
// https://streams.spec.whatwg.org/#create-writable-stream
WebIDL::ExceptionOr<JS::NonnullGCPtr<WritableStream>> create_writable_stream(JS::Realm& realm, StartAlgorithm&& start_algorithm, WriteAlgorithm&& write_algorithm, CloseAlgorithm&& close_algorithm, AbortAlgorithm&& abort_algorithm, double high_water_mark, SizeAlgorithm&& size_algorithm)
{

1
Userland/Libraries/LibWeb/Streams/AbstractOperations.h
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@ -109,6 +109,7 @@ void readable_byte_stream_controller_invalidate_byob_request(ReadableByteStreamC
bool readable_byte_stream_controller_should_call_pull(ReadableByteStreamController const&);
WebIDL::ExceptionOr<JS::NonnullGCPtr<ReadableStream>> create_readable_stream(JS::Realm& realm, StartAlgorithm&& start_algorithm, PullAlgorithm&& pull_algorithm, CancelAlgorithm&& cancel_algorithm, Optional<double> high_water_mark = {}, Optional<SizeAlgorithm>&& size_algorithm = {});
WebIDL::ExceptionOr<JS::NonnullGCPtr<ReadableStream>> create_readable_byte_stream(JS::Realm& realm, StartAlgorithm&& start_algorithm, PullAlgorithm&& pull_algorithm, CancelAlgorithm&& cancel_algorithm);
WebIDL::ExceptionOr<JS::NonnullGCPtr<WritableStream>> create_writable_stream(JS::Realm& realm, StartAlgorithm&& start_algorithm, WriteAlgorithm&& write_algorithm, CloseAlgorithm&& close_algorithm, AbortAlgorithm&& abort_algorithm, double high_water_mark, SizeAlgorithm&& size_algorithm);
void initialize_readable_stream(ReadableStream&);
void initialize_writable_stream(WritableStream&);