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LibWeb: Add ReadableStreamBYOBReader interface
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6 changed files with 93 additions and 0 deletions
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@ -475,6 +475,7 @@ set(SOURCES
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Streams/AbstractOperations.cpp
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Streams/ReadableByteStreamController.cpp
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Streams/ReadableStream.cpp
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Streams/ReadableStreamBYOBReader.cpp
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Streams/ReadableStreamBYOBRequest.cpp
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Streams/ReadableStreamDefaultController.cpp
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Streams/ReadableStreamDefaultReader.cpp
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@ -509,6 +509,7 @@ class Selection;
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namespace Web::Streams {
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class ReadableByteStreamController;
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class ReadableStream;
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class ReadableStreamBYOBReader;
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class ReadableStreamBYOBRequest;
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class ReadableStreamDefaultController;
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class ReadableStreamDefaultReader;
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@ -0,0 +1,25 @@
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/*
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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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#include <LibJS/Runtime/PromiseCapability.h>
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#include <LibWeb/Streams/ReadableStream.h>
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#include <LibWeb/Streams/ReadableStreamBYOBReader.h>
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namespace Web::Streams {
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ReadableStreamBYOBReader::ReadableStreamBYOBReader(JS::Realm& realm)
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: Bindings::PlatformObject(realm)
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, ReadableStreamGenericReaderMixin(realm)
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{
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}
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void ReadableStreamBYOBReader::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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ReadableStreamGenericReaderMixin::visit_edges(visitor);
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}
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}
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54
Userland/Libraries/LibWeb/Streams/ReadableStreamBYOBReader.h
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54
Userland/Libraries/LibWeb/Streams/ReadableStreamBYOBReader.h
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@ -0,0 +1,54 @@
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/*
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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 <AK/Function.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/Streams/ReadableStreamGenericReader.h>
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namespace Web::Streams {
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// https://streams.spec.whatwg.org/#read-into-request
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class ReadIntoRequest : public RefCounted<ReadIntoRequest> {
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public:
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virtual ~ReadIntoRequest() = default;
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// An algorithm taking a chunk, called when a chunk is available for reading
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virtual void on_chunk(JS::Value chunk) = 0;
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// An algorithm taking a chunk or undefined, called when no chunks are available because the stream is closed
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virtual void on_close(JS::Value chunk_or_undefined) = 0;
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// An algorithm taking a JavaScript value, called when no chunks are available because the stream is errored
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virtual void on_error(JS::Value error) = 0;
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};
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// https://streams.spec.whatwg.org/#readablestreambyobreader
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class ReadableStreamBYOBReader final
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: public Bindings::PlatformObject
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, public ReadableStreamGenericReaderMixin {
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WEB_PLATFORM_OBJECT(ReadableStreamBYOBReader, Bindings::PlatformObject);
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public:
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virtual ~ReadableStreamBYOBReader() override = default;
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Vector<NonnullRefPtr<ReadIntoRequest>>& read_into_requests() { return m_read_into_requests; }
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private:
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explicit ReadableStreamBYOBReader(JS::Realm&);
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virtual void visit_edges(Cell::Visitor&) override;
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// https://streams.spec.whatwg.org/#readablestreambyobreader-readintorequests
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// A list of read-into requests, used when a consumer requests chunks sooner than they are available
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Vector<NonnullRefPtr<ReadIntoRequest>> m_read_into_requests;
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};
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}
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@ -0,0 +1,11 @@
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#import <Streams/ReadableStreamGenericReader.idl>
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[Exposed=*]
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interface ReadableStreamBYOBReader {
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// FIXME: Implement
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// constructor(ReadableStream stream);
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// Promise<ReadableStreamReadResult> read(ArrayBufferView view);
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// undefined releaseLock();
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};
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ReadableStreamBYOBReader includes ReadableStreamGenericReader;
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@ -184,6 +184,7 @@ libweb_js_bindings(RequestIdleCallback/IdleDeadline)
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libweb_js_bindings(ResizeObserver/ResizeObserver)
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libweb_js_bindings(Streams/ReadableByteStreamController)
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libweb_js_bindings(Streams/ReadableStream)
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libweb_js_bindings(Streams/ReadableStreamBYOBReader)
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libweb_js_bindings(Streams/ReadableStreamBYOBRequest)
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libweb_js_bindings(Streams/ReadableStreamDefaultController)
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libweb_js_bindings(Streams/ReadableStreamDefaultReader)
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