| // 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-json.stringify |
| es6id: 24.3.2 |
| description: Proxy of an array is treated as an array |
| info: | |
| [...] |
| 12. Return ? SerializeJSONProperty(the empty String, wrapper). |
| |
| 24.3.2.1 Runtime Semantics: SerializeJSONProperty |
| |
| [...] |
| 10. If Type(value) is Object and IsCallable(value) is false, then |
| a. Let isArray be ? IsArray(value). |
| b. If isArray is true, return ? SerializeJSONArray(value). |
| c. Else, return ? SerializeJSONObject(value). |
| [...] |
| |
| 7.2.2 IsArray |
| |
| [...] |
| 3. If argument is a Proxy exotic object, then |
| a. If the value of the [[ProxyHandler]] internal slot of argument is null, |
| throw a TypeError exception. |
| b. Let target be the value of the [[ProxyTarget]] internal slot of |
| argument. |
| c. Return ? IsArray(target). |
| features: [Proxy] |
| ---*/ |
| |
| var objectProxy = new Proxy({}, {}); |
| var arrayProxy = new Proxy([], {}); |
| var arrayProxyProxy = new Proxy(arrayProxy, {}); |
| |
| assert.sameValue(JSON.stringify(objectProxy), '{}'); |
| assert.sameValue(JSON.stringify(arrayProxy), '[]', 'proxy for an array'); |
| assert.sameValue( |
| JSON.stringify([[arrayProxy]]), '[[[]]]', 'proxy for an array (nested)' |
| ); |
| assert.sameValue( |
| JSON.stringify([[arrayProxyProxy]]), |
| '[[[]]]', |
| 'proxy for a proxy for an array (nested)' |
| ); |