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32 lines
733 B
JavaScript
32 lines
733 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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es6id: 9.5.4
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description: >
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Trap is called with handler on its context and target as the first
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parameter.
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info: |
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[[PreventExtensions]] ( )
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...
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8. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target»)).
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...
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---*/
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var _target, _handler;
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var target = {};
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var handler = {
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preventExtensions: function(t) {
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_handler = this;
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_target = t;
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return Object.preventExtensions(target);
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}
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};
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var p = new Proxy(target, handler);
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Object.preventExtensions(p);
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assert.sameValue(_handler, handler);
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assert.sameValue(_target, target);
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