| /* |
| * 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. |
| */ |
| |
| function initializeWritableStreamDefaultWriter(stream) |
| { |
| "use strict"; |
| |
| // stream can be a WritableStream if WritableStreamDefaultWriter constructor is called directly from JS |
| // or an InternalWritableStream in other code paths. |
| const internalStream = @getInternalWritableStream(stream); |
| if (internalStream) |
| stream = internalStream; |
| |
| if (!@isWritableStream(stream)) |
| @throwTypeError("WritableStreamDefaultWriter constructor takes a WritableStream"); |
| |
| @setUpWritableStreamDefaultWriter(this, stream); |
| return this; |
| } |
| |
| @getter |
| function closed() |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| return @Promise.@reject(@makeGetterTypeError("WritableStreamDefaultWriter", "closed")); |
| |
| return @getByIdDirectPrivate(this, "closedPromise").@promise; |
| } |
| |
| @getter |
| function desiredSize() |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| throw @makeThisTypeError("WritableStreamDefaultWriter", "desiredSize"); |
| |
| if (@getByIdDirectPrivate(this, "stream") === @undefined) |
| @throwTypeError("WritableStreamDefaultWriter has no stream"); |
| |
| return @writableStreamDefaultWriterGetDesiredSize(this); |
| } |
| |
| @getter |
| function ready() |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| return @Promise.@reject(@makeThisTypeError("WritableStreamDefaultWriter", "ready")); |
| |
| return @getByIdDirectPrivate(this, "readyPromise").@promise; |
| } |
| |
| function abort(reason) |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| return @Promise.@reject(@makeThisTypeError("WritableStreamDefaultWriter", "abort")); |
| |
| if (@getByIdDirectPrivate(this, "stream") === @undefined) |
| return @Promise.@reject(@makeTypeError("WritableStreamDefaultWriter has no stream")); |
| |
| return @writableStreamDefaultWriterAbort(this, reason); |
| } |
| |
| function close() |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| return @Promise.@reject(@makeThisTypeError("WritableStreamDefaultWriter", "close")); |
| |
| const stream = @getByIdDirectPrivate(this, "stream"); |
| if (stream === @undefined) |
| return @Promise.@reject(@makeTypeError("WritableStreamDefaultWriter has no stream")); |
| |
| if (@writableStreamCloseQueuedOrInFlight(stream)) |
| return @Promise.@reject(@makeTypeError("WritableStreamDefaultWriter is being closed")); |
| |
| return @writableStreamDefaultWriterClose(this); |
| } |
| |
| function releaseLock() |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| throw @makeThisTypeError("WritableStreamDefaultWriter", "releaseLock"); |
| |
| const stream = @getByIdDirectPrivate(this, "stream"); |
| if (stream === @undefined) |
| return; |
| |
| @assert(@getByIdDirectPrivate(stream, "writer") !== @undefined); |
| @writableStreamDefaultWriterRelease(this); |
| } |
| |
| function write(chunk) |
| { |
| "use strict"; |
| |
| if (!@isWritableStreamDefaultWriter(this)) |
| return @Promise.@reject(@makeThisTypeError("WritableStreamDefaultWriter", "write")); |
| |
| if (@getByIdDirectPrivate(this, "stream") === @undefined) |
| return @Promise.@reject(@makeTypeError("WritableStreamDefaultWriter has no stream")); |
| |
| return @writableStreamDefaultWriterWrite(this, chunk); |
| } |