Source/WebCore/bindings/js/ReadableStreamDefaultController.h

/*
 * Copyright (C) 2016 Canon Inc.
 * Copyright (C) 2017 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 required to be 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.
 * 3.  Neither the name of Canon Inc. nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY CANON 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 CANON INC. AND 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,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "JSDOMConvertBufferSource.h"
#include "JSReadableStreamDefaultController.h"
#include <JavaScriptCore/JSCJSValue.h>
#include <JavaScriptCore/JSCJSValueInlines.h>
#include <JavaScriptCore/TypedArrays.h>

namespace WebCore {

class ReadableStreamSource;

class ReadableStreamDefaultController {
public:
    explicit ReadableStreamDefaultController(JSReadableStreamDefaultController* controller) : m_jsController(controller) { }

    bool enqueue(RefPtr<JSC::ArrayBuffer>&&);
    bool enqueue(JSC::JSValue);
    void error(const Exception&);
    void close();

private:
    JSReadableStreamDefaultController& jsController() const;

    JSDOMGlobalObject& globalObject() const;

    // The owner of ReadableStreamDefaultController is responsible to keep uncollected the JSReadableStreamDefaultController.
    JSReadableStreamDefaultController* m_jsController { nullptr };
};

inline JSReadableStreamDefaultController& ReadableStreamDefaultController::jsController() const
{
    ASSERT(m_jsController);
    return *m_jsController;
}

inline JSDOMGlobalObject& ReadableStreamDefaultController::globalObject() const
{
    ASSERT(m_jsController);
    ASSERT(m_jsController->globalObject());
    return *static_cast<JSDOMGlobalObject*>(m_jsController->globalObject());
}

} // namespace WebCore