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LibWeb: Implement AO ReadableByteStreamControllerRespondInternal
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@ -1185,6 +1185,47 @@ void readable_byte_stream_controller_respond_in_closed_state(ReadableByteStreamC
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}
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}
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// https://streams.spec.whatwg.org/#readable-byte-stream-controller-respond-internal
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WebIDL::ExceptionOr<void> readable_byte_stream_controller_respond_internal(ReadableByteStreamController& controller, u64 bytes_written)
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{
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// 1. Let firstDescriptor be controller.[[pendingPullIntos]][0].
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auto& first_descriptor = controller.pending_pull_intos().first();
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// 2. Assert: ! CanTransferArrayBuffer(firstDescriptor’s buffer) is true.
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VERIFY(can_transfer_array_buffer(*first_descriptor.buffer));
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// 3. Perform ! ReadableByteStreamControllerInvalidateBYOBRequest(controller).
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readable_byte_stream_controller_invalidate_byob_request(controller);
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// 4. Let state be controller.[[stream]].[[state]].
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auto state = controller.stream()->state();
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// 5. If state is "closed",
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if (state == ReadableStream::State::Closed) {
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// 1. Assert: bytesWritten is 0.
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VERIFY(bytes_written == 0);
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// 2. Perform ! ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor).
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readable_byte_stream_controller_respond_in_closed_state(controller, first_descriptor);
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}
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// 6. Otherwise,
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else {
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// 1. Assert: state is "readable".
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VERIFY(state == ReadableStream::State::Readable);
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// 2. Assert: bytesWritten > 0.
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VERIFY(bytes_written > 0);
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// 3. Perform ? ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor).
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TRY(readable_byte_stream_controller_respond_in_readable_state(controller, bytes_written, first_descriptor));
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}
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// 7. Perform ! ReadableByteStreamControllerCallPullIfNeeded(controller).
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MUST(readable_byte_stream_controller_call_pull_if_needed(controller));
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return {};
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}
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// https://streams.spec.whatwg.org/#readable-stream-default-controller-error
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void readable_stream_default_controller_error(ReadableStreamDefaultController& controller, JS::Value error)
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{
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