| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-symbol.keyfor |
| description: > |
| Called with Symbol value that does not exist in the global symbol registry |
| info: | |
| 1. If Type(sym) is not Symbol, throw a TypeError exception. |
| 2. For each element e of the GlobalSymbolRegistry List (see 19.4.2.1), |
| a. If SameValue(e.[[Symbol]], sym) is true, return e.[[Key]]. |
| 3. Assert: GlobalSymbolRegistry does not currently contain an entry for |
| sym. |
| 4. Return undefined. |
| features: [Symbol.iterator, Symbol] |
| ---*/ |
| |
| var constructed = Symbol('Symbol.iterator'); |
| assert.sameValue(Symbol.keyFor(constructed), undefined, 'constructed symbol'); |
| |
| assert.sameValue( |
| Symbol.keyFor(Symbol.iterator), undefined, 'well-known symbol' |
| ); |
