lib/html/templates/html/dart2js/factoryprovider_Blob.darttemplate

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

class $FACTORYPROVIDER {
  static Blob createBlob([List blobParts = null, String type, String endings]) {
    // TODO: validate that blobParts is a JS Array and convert if not.
    // TODO: any coercions on the elements of blobParts, e.g. coerce a typed
    // array to ArrayBuffer if it is a total view.
    if (type == null && endings == null) {
      return _create_1(blobParts);
    }
    var bag = _create_bag();
    if (type != null) _bag_set(bag, 'type', type);
    if (endings != null) _bag_set(bag, 'endings', endings);
    return _create_2(blobParts, bag);
  }

  static _create_1(parts) native 'return new Blob(parts);';
  static _create_2(parts, bag) native 'return new Blob(parts, bag);';

  static _create_bag() native 'return {}';
  static _bag_set(bag, key, value) native 'bag[key] = value;';
}