40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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(function testNestedSpreadsInPatterns() {
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(function () {
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var [...[...x]] = [42, 17];
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assertArrayEquals([42, 17], x);
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})();
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(function () {
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let [...[...x]] = [42, 17];
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assertArrayEquals([42, 17], x);
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})();
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(function () {
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const [...[...x]] = [42, 17];
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assertArrayEquals([42, 17], x);
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})();
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(function () {
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var x; [...[...x]] = [42, 17];
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assertArrayEquals([42, 17], x);
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})();
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function f1([...[...x]] = [42, 17]) { return x; }
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assertArrayEquals([42, 17], f1());
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assertArrayEquals([1, 2, 3], f1([1, 2, 3]));
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var f2 = function ([...[...x]] = [42, 17]) { return x; }
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assertArrayEquals([42, 17], f2());
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assertArrayEquals([1, 2, 3], f2([1, 2, 3]));
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// The following two were failing in debug mode, until v8:5337 was fixed.
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var f3 = ([...[...x]] = [42, 17]) => { return x; };
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assertArrayEquals([42, 17], f3());
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assertArrayEquals([1, 2, 3], f3([1, 2, 3]));
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var f4 = ([...[...x]] = [42, 17]) => x;
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assertArrayEquals([42, 17], f4());
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assertArrayEquals([1, 2, 3], f4([1, 2, 3]));
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})();
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