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LibWeb: Add AO transform_stream_default_controller_terminate()

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Kenneth Myhra 2023-07-07 19:44:46 +02:00 • committed by Andreas Kling
parent 4ae82983a4
commit e1740938fc
2 changed files with 25 additions and 0 deletions
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24
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -2799,6 +2799,30 @@ WebIDL::ExceptionOr<void> transform_stream_default_controller_error(TransformStr
return {};
}
// https://streams.spec.whatwg.org/#transform-stream-default-controller-terminate
WebIDL::ExceptionOr<void> transform_stream_default_controller_terminate(TransformStreamDefaultController& controller)
{
auto& realm = controller.realm();
// 1. Let stream be controller.[[stream]].
auto stream = controller.stream();
// 2. Let readableController be stream.[[readable]].[[controller]].
VERIFY(stream->readable()->controller().has_value() && stream->readable()->controller()->has<JS::NonnullGCPtr<ReadableStreamDefaultController>>());
auto readable_controller = stream->readable()->controller()->get<JS::NonnullGCPtr<ReadableStreamDefaultController>>();
// 3. Perform ! ReadableStreamDefaultControllerClose(readableController).
readable_stream_default_controller_close(readable_controller);
// 4. Let error be a TypeError exception indicating that the stream has been terminated.
auto error = MUST_OR_THROW_OOM(JS::TypeError::create(realm, "Stream has been terminated."sv));
// 5. Perform ! TransformStreamErrorWritableAndUnblockWrite(stream, error).
TRY(transform_stream_error_writable_and_unblock_write(*stream, error));
return {};
}
// https://streams.spec.whatwg.org/#transform-stream-error
WebIDL::ExceptionOr<void> transform_stream_error(TransformStream& stream, JS::Value error)
{