The Tor Browser / file comparison
comparison: js/src/jit-test/tests/proxy/bug-862848-1.js
js/src/jit-test/tests/proxy/bug-862848-1.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:a2e646fde18d |
|---|---|
| 1 // obj.hasOwnProperty(id), Object.getOwnPropertyDescriptor(obj, id), and | |
| 2 // Object.defineProperty(obj, id, desc) do not look at obj's prototype. | |
| 3 | |
| 4 var angryHandler = new Proxy({}, { | |
| 5 has: () => true, | |
| 6 get: (t, id) => { | |
| 7 throw new Error("angryHandler should not be queried (" + id + ")"); | |
| 8 } | |
| 9 }); | |
| 10 var angryProto = new Proxy({}, angryHandler); | |
| 11 | |
| 12 var obj = Object.create(angryProto, { | |
| 13 // Define hasOwnProperty directly on obj since we are poisoning its | |
| 14 // prototype chain. | |
| 15 hasOwnProperty: { | |
| 16 value: Object.prototype.hasOwnProperty | |
| 17 } | |
| 18 }); | |
| 19 | |
| 20 assertEq(Object.getOwnPropertyDescriptor(obj, "foo"), undefined); | |
| 21 assertEq(obj.hasOwnProperty("foo"), false); | |
| 22 Object.defineProperty(obj, "foo", {value: 5}); | |
| 23 assertEq(obj.hasOwnProperty("foo"), true); | |
| 24 assertEq(obj.foo, 5); |
