Source/WebCore/Modules/streams/ReadableStreamSource.idl

/*
 * Copyright (C) 2016 Canon Inc.
 *
 * 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
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 *     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
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 */

[
    NoInterfaceObject,
    Conditional=STREAMS_API,
    SkipVTableValidation
] interface ReadableStreamSource {
    [Custom] Promise<void> start(ReadableStreamDefaultController controller);
    [Custom] Promise<void> pull(ReadableStreamDefaultController controller);
    void cancel(any reason);

    // Place holder to keep the controller linked to the source.
    [CachedAttribute, CustomGetter] readonly attribute any controller;
};