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// Copyright (c) 2017, 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.
// @dart = 2.7
/// Test that optional arguments of js-interop factory constructors are not
/// elided.
/// This is a regression test for issue 35916
library test;
import "package:js/js.dart";
import "package:expect/expect.dart";
class Margins {
external factory Margins(
{int top, int start, int end, int right, int bottom, int left});
external int get top;
external int get right;
external int get left;
external int get bottom;
main() {
var m = new Margins(bottom: 21, left: 88, right: 20, top: 24);
Expect.equals(, 24);
Expect.equals(m.bottom, 21);
Expect.equals(m.left, 88);
Expect.equals(m.right, 20);