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LibWeb: Implement WritableStream.getWriter()

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Matthew Olsson 2023-04-02 07:22:11 -07:00 • committed by Linus Groh
parent f358ae1b13
commit ae2d67c28b
5 changed files with 27 additions and 1 deletions
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15
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -738,6 +738,21 @@ WebIDL::ExceptionOr<void> set_up_readable_stream_default_controller_from_underly
return set_up_readable_stream_default_controller(stream, controller, move(start_algorithm), move(pull_algorithm), move(cancel_algorithm), high_water_mark, move(size_algorithm));
}
// https://streams.spec.whatwg.org/#acquire-writable-stream-default-writer
WebIDL::ExceptionOr<JS::NonnullGCPtr<WritableStreamDefaultWriter>> acquire_writable_stream_default_writer(WritableStream& stream)
{
auto& realm = stream.realm();
// 1. Let writer be a new WritableStreamDefaultWriter.
auto writer = MUST_OR_THROW_OOM(stream.heap().allocate<WritableStreamDefaultWriter>(realm, realm));
// 2. Perform ? SetUpWritableStreamDefaultWriter(writer, stream).
TRY(set_up_writable_stream_default_writer(*writer, stream));
// 3. Return writer.
return writer;
}
// https://streams.spec.whatwg.org/#is-writable-stream-locked
bool is_writable_stream_locked(WritableStream const& stream)
{