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da9612db98
* Defer making [[ProxyTarget]] non-extensible * Fix typo in method name * Add last Object.keys with Proxy invariant test * Add Object.getOwnPropertySymbols with Proxy invariants tests * Add Object.getOwnPropertyNames with Proxy invariants tests * Replace "es6id" with "esid" in Object.getOwnPropertySymbols tests
37 lines
933 B
JavaScript
37 lines
933 B
JavaScript
// Copyright (C) 2019 Alexey Shvayka. 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-object.getownpropertynames
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description: >
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Proxy [[OwnPropertyKeys]] trap does not skip symbol keys when validating invariant:
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* The returned List contains no duplicate entries.
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info: |
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Object.getOwnPropertyNames ( O )
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1. Return ? GetOwnPropertyKeys(O, String).
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GetOwnPropertyKeys ( O, type )
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...
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2. Let keys be ? obj.[[OwnPropertyKeys]]().
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[[OwnPropertyKeys]] ( )
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...
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8. Let trapResult be ? CreateListFromArrayLike(trapResultArray, « String, Symbol »).
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9. If trapResult contains any duplicate entries, throw a TypeError exception.
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features: [Proxy, Symbol]
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---*/
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var symbol = Symbol();
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var proxy = new Proxy({}, {
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ownKeys: function() {
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return [symbol, symbol];
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},
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});
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assert.throws(TypeError, function() {
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Object.getOwnPropertyNames(proxy);
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});
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