98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/*
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* Copyright (C) 2017-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY CANON INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CANON INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "ExceptionOr.h"
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#include "JSDOMBinding.h"
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#include "JSDOMConvert.h"
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#include "JSDOMGuardedObject.h"
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#include "JSReadableStream.h"
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namespace WebCore {
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class ReadableStreamSink;
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class ReadableStreamSource;
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class ReadableStream final : public DOMGuarded<JSReadableStream> {
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public:
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static Ref<ReadableStream> create(JSDOMGlobalObject& globalObject, JSReadableStream& readableStream) { return adoptRef(*new ReadableStream(globalObject, readableStream)); }
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static ExceptionOr<Ref<ReadableStream>> create(JSC::JSGlobalObject&, RefPtr<ReadableStreamSource>&&);
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WEBCORE_EXPORT static bool isDisturbed(JSC::JSGlobalObject&, JSC::JSValue);
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std::optional<std::pair<Ref<ReadableStream>, Ref<ReadableStream>>> tee();
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void lock();
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void pipeTo(ReadableStreamSink&);
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bool isLocked() const;
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bool isDisturbed() const;
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JSReadableStream* readableStream() const { return guarded(); }
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private:
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ReadableStream(JSDOMGlobalObject& globalObject, JSReadableStream& readableStream) : DOMGuarded<JSReadableStream>(globalObject, readableStream) { }
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};
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struct JSReadableStreamWrapperConverter {
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static RefPtr<ReadableStream> toWrapped(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value)
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{
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JSC::VM& vm = JSC::getVM(&lexicalGlobalObject);
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auto* globalObject = JSC::jsDynamicCast<JSDOMGlobalObject*>(vm, &lexicalGlobalObject);
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if (!globalObject)
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return nullptr;
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auto* readableStream = JSC::jsDynamicCast<JSReadableStream*>(vm, value);
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if (!readableStream)
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return nullptr;
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return ReadableStream::create(*globalObject, *readableStream);
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}
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};
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template<> struct JSDOMWrapperConverterTraits<ReadableStream> {
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using WrapperClass = JSReadableStreamWrapperConverter;
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using ToWrappedReturnType = RefPtr<ReadableStream>;
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static constexpr bool needsState = true;
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};
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inline JSC::JSValue toJS(JSC::JSGlobalObject*, JSC::JSGlobalObject*, ReadableStream* stream)
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{
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return stream ? stream->readableStream() : JSC::jsUndefined();
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}
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inline JSC::JSValue toJS(JSC::JSGlobalObject*, JSC::JSGlobalObject*, ReadableStream& stream)
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{
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return stream.readableStream();
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}
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inline JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject*, Ref<ReadableStream>&& stream)
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{
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return stream->readableStream();
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}
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}
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