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/*
* Copyright (C) 2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "JSDOMPromiseDeferred.h"
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
namespace JSC {
class JSValue;
}
namespace WebCore {
class WritableStreamSink : public RefCounted<WritableStreamSink> {
public:
virtual ~WritableStreamSink() = default;
virtual void write(ScriptExecutionContext&, JSC::JSValue, DOMPromiseDeferred<void>&&) = 0;
virtual void close() = 0;
virtual void error(String&&) = 0;
};
class SimpleWritableStreamSink : public WritableStreamSink {
public:
using WriteCallback = Function<ExceptionOr<void>(ScriptExecutionContext&, JSC::JSValue)>;
static Ref<SimpleWritableStreamSink> create(WriteCallback&& writeCallback) { return adoptRef(*new SimpleWritableStreamSink(WTFMove(writeCallback))); }
private:
explicit SimpleWritableStreamSink(WriteCallback&&);
void write(ScriptExecutionContext&, JSC::JSValue, DOMPromiseDeferred<void>&&) final;
void close() final { }
void error(String&&) final { }
WriteCallback m_writeCallback;
};
inline SimpleWritableStreamSink::SimpleWritableStreamSink(WriteCallback&& writeCallback)
: m_writeCallback(WTFMove(writeCallback))
{
}
inline void SimpleWritableStreamSink::write(ScriptExecutionContext& context, JSC::JSValue value, DOMPromiseDeferred<void>&& promise)
{
promise.settle(m_writeCallback(context, value));
}
} // namespace WebCore
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