637fd51595
Represent WebIDL C++ types with a single CppType model that tracks nullability, optional presence, and contained storage. GC-like values now use GC::Ref/GC::Ptr directly, while containers choose "plain", "Root", or "Conservative" container types depending on what they contain. For example, sequence<Element> becomes a RootVector of GC::Ref values, while sequence<SomeDictionary> becomes a ConservativeVector only when the dictionary contains GC-like values. This moves the generated bindings away from wrapping GC values in GC::Root by default. This has broad fallout as the types passed to interfaces for GC objects changes almost fully across the board.
104 lines
4.5 KiB
C++
104 lines
4.5 KiB
C++
/*
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* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/SinglyLinkedList.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Streams/AbstractOperations.h>
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namespace Web::Streams {
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller
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class WritableStreamDefaultController final : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(WritableStreamDefaultController, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(WritableStreamDefaultController);
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public:
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virtual ~WritableStreamDefaultController() override = default;
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void error(Optional<JS::Value> error);
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GC::Ref<DOM::AbortSignal> signal() { return *m_signal; }
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void set_signal(GC::Ref<DOM::AbortSignal> value) { m_signal = value; }
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GC::Ptr<AbortAlgorithm> abort_algorithm() { return m_abort_algorithm; }
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void set_abort_algorithm(GC::Ptr<AbortAlgorithm> value) { m_abort_algorithm = value; }
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GC::Ptr<CloseAlgorithm> close_algorithm() { return m_close_algorithm; }
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void set_close_algorithm(GC::Ptr<CloseAlgorithm> value) { m_close_algorithm = value; }
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SinglyLinkedList<ValueWithSize>& queue() { return m_queue; }
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double queue_total_size() const { return m_queue_total_size; }
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void set_queue_total_size(double value) { m_queue_total_size = value; }
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bool started() const { return m_started; }
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void set_started(bool value) { m_started = value; }
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double strategy_hwm() const { return m_strategy_hwm; }
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void set_strategy_hwm(double value) { m_strategy_hwm = value; }
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GC::Ptr<SizeAlgorithm> strategy_size_algorithm() { return m_strategy_size_algorithm; }
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void set_strategy_size_algorithm(GC::Ptr<SizeAlgorithm> value) { m_strategy_size_algorithm = value; }
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GC::Ref<WritableStream> stream() { return *m_stream; }
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void set_stream(GC::Ref<WritableStream> value) { m_stream = value; }
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GC::Ptr<WriteAlgorithm> write_algorithm() { return m_write_algorithm; }
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void set_write_algorithm(GC::Ptr<WriteAlgorithm> value) { m_write_algorithm = value; }
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GC::Ref<WebIDL::Promise> abort_steps(JS::Value reason);
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void error_steps();
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private:
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explicit WritableStreamDefaultController(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Visitor&) override;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-abortalgorithm
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// A promise-returning algorithm, taking one argument (the abort reason), which communicates a requested abort to the underlying sink
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GC::Ptr<AbortAlgorithm> m_abort_algorithm;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-closealgorithm
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// A promise-returning algorithm which communicates a requested close to the underlying sink
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GC::Ptr<CloseAlgorithm> m_close_algorithm;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-queue
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// A list representing the stream’s internal queue of chunks
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SinglyLinkedList<ValueWithSize> m_queue;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-queuetotalsize
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// The total size of all the chunks stored in [[queue]]
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double m_queue_total_size { 0 };
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-signal
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// An AbortSignal that can be used to abort the pending write or close operation when the stream is aborted.
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GC::Ptr<DOM::AbortSignal> m_signal;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-started
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// A boolean flag indicating whether the underlying sink has finished starting
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bool m_started { false };
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-strategyhwm
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// A number supplied by the creator of the stream as part of the stream’s queuing strategy, indicating the point at which the stream will apply backpressure to its underlying sink
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double m_strategy_hwm { 0 };
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-strategysizealgorithm
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// An algorithm to calculate the size of enqueued chunks, as part of the stream’s queuing strategy
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GC::Ptr<SizeAlgorithm> m_strategy_size_algorithm;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-stream
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// The WritableStream instance controlled
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GC::Ptr<WritableStream> m_stream;
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// https://streams.spec.whatwg.org/#writablestreamdefaultcontroller-writealgorithm
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// A promise-returning algorithm, taking one argument (the chunk to write), which writes data to the underlying sink
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GC::Ptr<WriteAlgorithm> m_write_algorithm;
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};
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}
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