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2c3531ab78
This change also removes as much direct use of JS::Promise in LibWeb as possible. When specs refer to `Promise<T>` they should be assumed to be referring to the WebIDL Promise type, not the JS::Promise type. The one exception is the HostPromiseRejectionTracker hook on the JS VM. This facility and its associated sets and events are intended to expose the exact opaque object handles that were rejected to author code. This is not possible with the WebIDL Promise type, so we have to use JS::Promise or JS::Object to hold onto the promises. It also exposes which specs need some updates in the area of promises. WebDriver stands out in this regard. WebAudio could use some more cross-references to WebIDL as well to clarify things.
48 lines
1.4 KiB
C++
48 lines
1.4 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/Forward.h>
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#include <LibJS/Forward.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebIDL/Promise.h>
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namespace Web::Streams {
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// https://streams.spec.whatwg.org/#readablestreamgenericreader
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class ReadableStreamGenericReaderMixin {
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public:
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virtual ~ReadableStreamGenericReaderMixin() = default;
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JS::GCPtr<WebIDL::Promise> closed();
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JS::NonnullGCPtr<WebIDL::Promise> cancel(JS::Value reason);
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JS::GCPtr<ReadableStream> stream() const { return m_stream; }
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void set_stream(JS::GCPtr<ReadableStream> stream) { m_stream = stream; }
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JS::GCPtr<WebIDL::Promise> closed_promise_capability() { return m_closed_promise; }
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void set_closed_promise_capability(JS::GCPtr<WebIDL::Promise> promise) { m_closed_promise = promise; }
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protected:
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explicit ReadableStreamGenericReaderMixin(JS::Realm&);
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void visit_edges(JS::Cell::Visitor&);
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// https://streams.spec.whatwg.org/#readablestreamgenericreader-closedpromise
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// A promise returned by the reader's closed getter
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JS::GCPtr<WebIDL::Promise> m_closed_promise;
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// https://streams.spec.whatwg.org/#readablestreamgenericreader-stream
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// A ReadableStream instance that owns this reader
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JS::GCPtr<ReadableStream> m_stream;
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JS::NonnullGCPtr<JS::Realm> m_realm;
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};
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}
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