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54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
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: 9.5.6
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description: >
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Trap is called with handler as context and parameters are target, P, and the
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descriptor object.
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info: |
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[[DefineOwnProperty]] (P, Desc)
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...
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9. Let descObj be FromPropertyDescriptor(Desc).
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10. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P,
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descObj»)).
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...
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features: [Proxy]
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---*/
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var _handler, _target, _prop, _desc;
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var target = {};
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var descriptor = {
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configurable: true,
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enumerable: true,
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writable: true,
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value: 1
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};
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var handler = {
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defineProperty: function(t, prop, desc) {
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_handler = this;
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_target = t;
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_prop = prop;
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_desc = desc;
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return true;
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}
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};
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var p = new Proxy(target, handler);
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Object.defineProperty(p, "attr", descriptor);
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assert.sameValue(_handler, handler);
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assert.sameValue(_target, target);
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assert.sameValue(_prop, "attr");
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assert.sameValue(
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Object.keys(_desc).length, 4,
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"descriptor arg has the same amount of keys as given descriptor"
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);
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assert(_desc.configurable);
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assert(_desc.writable);
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assert(_desc.enumerable);
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assert.sameValue(_desc.value, 1);
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