| /* |
| * Copyright (C) 2015 Canon Inc. |
| * |
| * 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. ``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 |
| * 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. |
| */ |
| |
| // @conditional=ENABLE(READABLE_STREAM_API) |
| |
| function enqueue(chunk) |
| { |
| "use strict"; |
| |
| if (!@isReadableStreamDefaultController(this)) |
| throw @makeThisTypeError("ReadableStreamDefaultController", "enqueue"); |
| |
| if (this.@closeRequested) |
| throw new @TypeError("ReadableStreamDefaultController is requested to close"); |
| |
| if (this.@controlledReadableStream.@state !== @streamReadable) |
| throw new @TypeError("ReadableStream is not readable"); |
| |
| return @enqueueInReadableStream(this, chunk); |
| } |
| |
| function error(error) |
| { |
| "use strict"; |
| |
| if (!@isReadableStreamDefaultController(this)) |
| throw @makeThisTypeError("ReadableStreamDefaultController", "error"); |
| |
| const stream = this.@controlledReadableStream; |
| if (stream.@state !== @streamReadable) |
| throw new @TypeError("ReadableStream is not readable"); |
| |
| @errorReadableStream(stream, error); |
| } |
| |
| function close() |
| { |
| "use strict"; |
| |
| if (!@isReadableStreamDefaultController(this)) |
| throw @makeThisTypeError("ReadableStreamDefaultController", "close"); |
| |
| if (this.@closeRequested) |
| throw new @TypeError("ReadableStreamDefaultController is already requested to close"); |
| |
| if (this.@controlledReadableStream.@state !== @streamReadable) |
| throw new @TypeError("ReadableStream is not readable"); |
| |
| @readableStreamDefaultControllerClose(this); |
| } |
| |
| function desiredSize() |
| { |
| "use strict"; |
| |
| if (!@isReadableStreamDefaultController(this)) |
| throw @makeGetterTypeError("ReadableStreamDefaultController", "desiredSize"); |
| |
| return @readableStreamDefaultControllerGetDesiredSize(this); |
| } |
| |