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LibWeb: Add AO initialize_writable_stream()

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Kenneth Myhra 2023-07-08 06:48:25 +02:00 • committed by Andreas Kling
parent 641b9edd89
commit 7d8f24c227
2 changed files with 25 additions and 0 deletions
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23
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -1156,6 +1156,29 @@ bool readable_byte_stream_controller_should_call_pull(ReadableByteStreamControll
return false;
}
// https://streams.spec.whatwg.org/#initialize-writable-stream
void initialize_writable_stream(WritableStream& stream)
{
// 1. Set stream.[[state]] to "writable".
stream.set_state(WritableStream::State::Writable);
// 2. Set stream.[[storedError]], stream.[[writer]], stream.[[controller]], stream.[[inFlightWriteRequest]],
// stream.[[closeRequest]], stream.[[inFlightCloseRequest]], and stream.[[pendingAbortRequest]] to undefined.
stream.set_stored_error(JS::js_undefined());
stream.set_writer({});
stream.set_controller({});
stream.set_in_flight_write_request({});
stream.set_close_request({});
stream.set_in_flight_close_request({});
stream.set_pending_abort_request({});
// 3. Set stream.[[writeRequests]] to a new empty list.
stream.write_requests().clear();
// 4. Set stream.[[backpressure]] to false.
stream.set_backpressure(false);
}
// https://streams.spec.whatwg.org/#acquire-writable-stream-default-writer
WebIDL::ExceptionOr<JS::NonnullGCPtr<WritableStreamDefaultWriter>> acquire_writable_stream_default_writer(WritableStream& stream)
{