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LibWeb: Add ByteStreamController to ReadableStreamController type

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Matthew Olsson 2023-04-08 12:25:32 -07:00 • committed by Linus Groh
parent bd7809cc18
commit f9d6a161e8
7 changed files with 23 additions and 16 deletions
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18
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -84,7 +84,9 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> readable_stream_cancel(Re
(void)reader;
// 7. Let sourceCancelPromise be ! stream.[[controller]].[[CancelSteps]](reason).
auto source_cancel_promise = MUST(stream.controller()->cancel_steps(reason));
auto source_cancel_promise = TRY(stream.controller()->visit([&](auto const& controller) {
return controller->cancel_steps(reason);
}));
// 8. Return the result of reacting to sourceCancelPromise with a fulfillment step that returns undefined.
auto react_result = WebIDL::react_to_promise(*source_cancel_promise,
@ -319,7 +321,7 @@ WebIDL::ExceptionOr<void> readable_stream_reader_generic_release(ReadableStreamG
WebIDL::mark_promise_as_handled(*reader.closed_promise_capability());
// 7. Perform ! stream.[[controller]].[[ReleaseSteps]]().
stream->controller()->release_steps();
TRY(stream->controller()->visit([](auto const& controller) { return controller->release_steps(); }));
// 8. Set stream.[[reader]] to undefined.
stream->set_reader({});
@ -345,7 +347,7 @@ void readable_stream_default_reader_error_read_requests(ReadableStreamDefaultRea
}
// https://streams.spec.whatwg.org/#readable-stream-default-reader-read
void readable_stream_default_reader_read(ReadableStreamDefaultReader& reader, ReadRequest& read_request)
WebIDL::ExceptionOr<void> readable_stream_default_reader_read(ReadableStreamDefaultReader& reader, ReadRequest& read_request)
{
// 1. Let stream be reader.[[stream]].
auto stream = reader.stream();
@ -370,8 +372,12 @@ void readable_stream_default_reader_read(ReadableStreamDefaultReader& reader, Re
VERIFY(stream->is_readable());
// 2. Perform ! stream.[[controller]].[[PullSteps]](readRequest).
MUST(stream->controller()->pull_steps(read_request));
TRY(stream->controller()->visit([&](auto const& controller) {
return controller->pull_steps(read_request);
}));
}
return {};
}
// https://streams.spec.whatwg.org/#abstract-opdef-readablestreamdefaultreaderrelease
@ -635,7 +641,7 @@ WebIDL::ExceptionOr<void> set_up_readable_stream_default_controller(ReadableStre
auto& realm = stream.realm();
// 1. Assert: stream.[[controller]] is undefined.
VERIFY(!stream.controller());
VERIFY(!stream.controller().has_value());
// 2. Set controller.[[stream]] to stream.
controller.set_stream(stream);
@ -660,7 +666,7 @@ WebIDL::ExceptionOr<void> set_up_readable_stream_default_controller(ReadableStre
controller.set_cancel_algorithm(move(cancel_algorithm));
// 8. Set stream.[[controller]] to controller.
stream.set_controller(controller);
stream.set_controller(ReadableStreamController { controller });
// 9. Let startResult be the result of performing startAlgorithm. (This might throw an exception.)
auto start_result = TRY(start_algorithm());