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30 lines
901 B
JavaScript
30 lines
901 B
JavaScript
// Copyright (C) 2015 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-weakset-iterable
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description: >
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Returns the new WeakSet adding the objects from the iterable parameter.
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info: |
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WeakSet ( [ iterable ] )
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...
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9. Repeat
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f. Let status be Call(adder, set, «nextValue»).
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g. If status is an abrupt completion, return IteratorClose(iter, status).
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features: [WeakSet]
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---*/
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var first = {};
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var second = {};
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var added = [];
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var add = WeakSet.prototype.add;
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WeakSet.prototype.add = function(value) {
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added.push(value);
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return add.call(this, value);
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};
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var s = new WeakSet([first, second]);
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assert.sameValue(added.length, 2, 'Called WeakSet#add for each object');
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assert.sameValue(added[0], first, 'Adds object in order - first');
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assert.sameValue(added[1], second, 'Adds object in order - second');
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