js/src/tests/ecma_5/extensions/destructuring-__proto__-target-assignment.js@6474c204b198 (annotated)
js/src/tests/ecma_5/extensions/destructuring-__proto__-target-assignment.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Any copyright is dedicated to the Public Domain. |
| michael@0 | 3 | * http://creativecommons.org/licenses/publicdomain/ |
| michael@0 | 4 | */ |
| michael@0 | 5 | |
| michael@0 | 6 | var gTestfile = 'destructuring-__proto__-target--assignment.js'; |
| michael@0 | 7 | var BUGNUMBER = 963641; |
| michael@0 | 8 | var summary = |
| michael@0 | 9 | "{ __proto__: target } should work as a destructuring assignment pattern"; |
| michael@0 | 10 | |
| michael@0 | 11 | print(BUGNUMBER + ": " + summary); |
| michael@0 | 12 | |
| michael@0 | 13 | /************** |
| michael@0 | 14 | * BEGIN TEST * |
| michael@0 | 15 | **************/ |
| michael@0 | 16 | |
| michael@0 | 17 | function objectWithProtoProperty(v) |
| michael@0 | 18 | { |
| michael@0 | 19 | var obj = {}; |
| michael@0 | 20 | return Object.defineProperty(obj, "__proto__", |
| michael@0 | 21 | { |
| michael@0 | 22 | enumerable: true, |
| michael@0 | 23 | configurable: true, |
| michael@0 | 24 | writable: true, |
| michael@0 | 25 | value: v |
| michael@0 | 26 | }); |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | var { __proto__: target } = objectWithProtoProperty(null); |
| michael@0 | 30 | assertEq(target, null); |
| michael@0 | 31 | |
| michael@0 | 32 | ({ __proto__: target } = objectWithProtoProperty("aacchhorrt")); |
| michael@0 | 33 | assertEq(target, "aacchhorrt"); |
| michael@0 | 34 | |
| michael@0 | 35 | function nested() |
| michael@0 | 36 | { |
| michael@0 | 37 | var { __proto__: target } = objectWithProtoProperty(3.141592654); |
| michael@0 | 38 | assertEq(target, 3.141592654); |
| michael@0 | 39 | |
| michael@0 | 40 | ({ __proto__: target } = objectWithProtoProperty(-0)); |
| michael@0 | 41 | assertEq(target, -0); |
| michael@0 | 42 | } |
| michael@0 | 43 | nested(); |
| michael@0 | 44 | |
| michael@0 | 45 | /******************************************************************************/ |
| michael@0 | 46 | |
| michael@0 | 47 | if (typeof reportCompare === "function") |
| michael@0 | 48 | reportCompare(true, true); |
| michael@0 | 49 | |
| michael@0 | 50 | print("Tests complete"); |
