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1 static Blob _create([List blobParts = null, String type, String endings]) { | |
2 // TODO: validate that blobParts is a JS Array and convert if not. | |
3 // TODO: any coercions on the elements of blobParts, e.g. coerce a typed | |
4 // array to ArrayBuffer if it is a total view. | |
5 if (type == null && endings == null) { | |
6 return _create_1(blobParts); | |
7 } | |
8 var bag = _create_bag(); | |
9 if (type != null) _bag_set(bag, 'type', type); | |
10 if (endings != null) _bag_set(bag, 'endings', endings); | |
11 return _create_2(blobParts, bag); | |
12 } | |
13 | |
14 static _create_1(parts) => JS('Blob', 'new Blob(#)', parts); | |
15 static _create_2(parts, bag) => JS('Blob', 'new Blob(#, #)', parts, bag); | |
16 | |
17 static _create_bag() => JS('var', '{}'); | |
18 static _bag_set(bag, key, value) { JS('void', '#[#] = #', bag, key, value); } | |
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