js/src/jit-test/tests/collections/key-equality-1.js@6474c204b198 (annotated)
js/src/jit-test/tests/collections/key-equality-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 | // Different representations of the same number or string are treated as the same Map key. |
| michael@0 | 2 | |
| michael@0 | 3 | var m = new Map; |
| michael@0 | 4 | var test = function test(a, b) { |
| michael@0 | 5 | m.set(a, 'secret'); |
| michael@0 | 6 | assertEq(m.get(b), 'secret'); |
| michael@0 | 7 | m.set(b, 'password'); |
| michael@0 | 8 | assertEq(m.get(a), 'password'); |
| michael@0 | 9 | |
| michael@0 | 10 | assertEq(a, b); |
| michael@0 | 11 | }; |
| michael@0 | 12 | |
| michael@0 | 13 | // Float and integer representations of the same number are the same key. |
| michael@0 | 14 | test(9, Math.sqrt(81)); |
| michael@0 | 15 | |
| michael@0 | 16 | // Ordinary strings and ropes are the same key. |
| michael@0 | 17 | var a = Array(1001).join('x'); |
| michael@0 | 18 | var b = Array(501).join('x') + Array(501).join('x'); |
| michael@0 | 19 | test(a, b); |
| michael@0 | 20 | |
| michael@0 | 21 | // Two structurally different ropes with the same characters are the same key. |
| michael@0 | 22 | a = ""; |
| michael@0 | 23 | b = ""; |
| michael@0 | 24 | for (var i = 0; i < 10; i++) { |
| michael@0 | 25 | a = Array(501).join('x') + a; |
| michael@0 | 26 | b = b + Array(501).join('x'); |
| michael@0 | 27 | } |
| michael@0 | 28 | test(a, b); |
