js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js@6474c204b198 (annotated)
js/src/jit-test/tests/for-of/array-iterator-surfaces-2.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 | // Superficial tests for iterators created by Array.prototype.iterator |
| michael@0 | 2 | |
| michael@0 | 3 | load(libdir + "iteration.js"); |
| michael@0 | 4 | |
| michael@0 | 5 | var proto = Object.getPrototypeOf([][std_iterator]()); |
| michael@0 | 6 | assertEq(Object.getPrototypeOf(proto), Iterator.prototype); |
| michael@0 | 7 | proto = Object.getPrototypeOf([].keys()); |
| michael@0 | 8 | assertEq(Object.getPrototypeOf(proto), Iterator.prototype); |
| michael@0 | 9 | proto = Object.getPrototypeOf([].entries()); |
| michael@0 | 10 | assertEq(Object.getPrototypeOf(proto), Iterator.prototype); |
| michael@0 | 11 | |
| michael@0 | 12 | function check(it) { |
| michael@0 | 13 | assertEq(typeof it, 'object'); |
| michael@0 | 14 | assertEq(Object.getPrototypeOf(it), proto); |
| michael@0 | 15 | assertEq(Object.getOwnPropertyNames(it).length, 0); |
| michael@0 | 16 | assertEq(it[std_iterator](), it); |
| michael@0 | 17 | |
| michael@0 | 18 | // for-in enumerates the iterator's properties. |
| michael@0 | 19 | it.x = 0; |
| michael@0 | 20 | var s = ''; |
| michael@0 | 21 | for (var p in it) |
| michael@0 | 22 | s += p + '.'; |
| michael@0 | 23 | assertEq(s, 'x.'); |
| michael@0 | 24 | } |
| michael@0 | 25 | |
| michael@0 | 26 | check([][std_iterator]()); |
| michael@0 | 27 | check(Array.prototype[std_iterator].call({})); |
| michael@0 | 28 | check([].keys()); |
| michael@0 | 29 | check(Array.prototype.keys.call({})); |
| michael@0 | 30 | check([].entries()); |
| michael@0 | 31 | check(Array.prototype.entries.call({})); |
