1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
4 * You can obtain one at http://mozilla.org/MPL/2.0/.
6 * The origin of this IDL file is
7 * https://streams.spec.whatwg.org/#underlying-source-api
11 dictionary UnderlyingSource {
12 UnderlyingSourceStartCallback start;
13 UnderlyingSourcePullCallback pull;
14 UnderlyingSourceCancelCallback cancel;
15 ReadableStreamType type;
16 [EnforceRange] unsigned long long autoAllocateChunkSize;
19 typedef (ReadableStreamDefaultController or ReadableByteStreamController) ReadableStreamController;
21 callback UnderlyingSourceStartCallback = any (ReadableStreamController controller);
22 callback UnderlyingSourcePullCallback = Promise<undefined> (ReadableStreamController controller);
23 callback UnderlyingSourceCancelCallback = Promise<undefined> (optional any reason);