retrieve-value.js - mozsearch

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// 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.for

description: Retrieval of previously-created value

info: |

    1. Let stringKey be ? ToString(key).

    2. For each element e of the GlobalSymbolRegistry List,

       a. If SameValue(e.[[Key]], stringKey) is true, return e.[[Symbol]].

    3. Assert: GlobalSymbolRegistry does not currently contain an entry for

       stringKey.

    4. Let newSymbol be a new unique Symbol value whose [[Description]] value

       is stringKey.

    5. Append the Record { [[Key]]: stringKey, [[Symbol]]: newSymbol } to the

       GlobalSymbolRegistry List.

    6. Return newSymbol.

features: [Symbol]

---*/

var canonical = Symbol.for('s');

assert.sameValue(typeof canonical, 'symbol');

assert.sameValue(canonical, Symbol.for('s'));

reportCompare(0, 0);