js/src/jit-test/tests/arrow-functions/this-1.js@6474c204b198 (annotated)
js/src/jit-test/tests/arrow-functions/this-1.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 | // 'this' is lexically scoped in arrow functions |
| michael@0 | 2 | |
| michael@0 | 3 | var obj = { |
| michael@0 | 4 | f: function (expected) { |
| michael@0 | 5 | assertEq(this, expected); |
| michael@0 | 6 | return a => this; |
| michael@0 | 7 | } |
| michael@0 | 8 | }; |
| michael@0 | 9 | |
| michael@0 | 10 | var g = obj.f(obj); |
| michael@0 | 11 | assertEq(g(), obj); |
| michael@0 | 12 | |
| michael@0 | 13 | var obj2 = {f: obj.f}; |
| michael@0 | 14 | var g2 = obj2.f(obj2); |
| michael@0 | 15 | assertEq(g2(), obj2); |
| michael@0 | 16 | assertEq(g(), obj); |
| michael@0 | 17 |
