| // Copyright (C) 2020 Alexey Shvayka. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-proxy-object-internal-methods-and-internal-slots-getprototypeof |
| description: > |
| If "getPrototypeOf" trap is null or undefined, [[GetPrototypeOf]] call |
| is properly forwarded to [[ProxyTarget]] (which is also a Proxy object). |
| info: | |
| [[GetPrototypeOf]] ( ) |
| |
| [...] |
| 4. Let target be O.[[ProxyTarget]]. |
| 5. Let trap be ? GetMethod(handler, "getPrototypeOf"). |
| 6. If trap is undefined, then |
| a. Return ? target.[[GetPrototypeOf]]() |
| |
| [[GetPrototypeOf]] ( ) |
| |
| [...] |
| 7. Let handlerProto be ? Call(trap, handler, « target »). |
| [...] |
| 13. Return handlerProto. |
| features: [Proxy] |
| ---*/ |
| |
| var targetPrototype = {}; |
| var target = new Proxy({}, { |
| getPrototypeOf: function(_target) { |
| return targetPrototype; |
| }, |
| }); |
| |
| var proxy = new Proxy(target, {}); |
| |
| assert.sameValue(Object.getPrototypeOf(proxy), targetPrototype); |