js/src/jit-test/tests/basic/spread-array.js@6474c204b198 (annotated)
js/src/jit-test/tests/basic/spread-array.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 | load(libdir + "asserts.js"); |
| michael@0 | 2 | load(libdir + "iteration.js"); |
| michael@0 | 3 | load(libdir + "eqArrayHelper.js"); |
| michael@0 | 4 | |
| michael@0 | 5 | assertEqArray([...[1, 2, 3]], [1, 2, 3]); |
| michael@0 | 6 | assertEqArray([1, ...[2, 3, 4], 5], [1, 2, 3, 4, 5]); |
| michael@0 | 7 | assertEqArray([1, ...[], 2], [1, 2]); |
| michael@0 | 8 | assertEqArray([1, ...[2, 3], 4, ...[5, 6]], [1, 2, 3, 4, 5, 6]); |
| michael@0 | 9 | assertEqArray([1, ...[], 2], [1, 2]); |
| michael@0 | 10 | assertEqArray([1,, ...[2]], [1,, 2]); |
| michael@0 | 11 | assertEqArray([1,, ...[2],, 3,, 4,], [1,, 2,, 3,, 4,]); |
| michael@0 | 12 | assertEqArray([...[1, 2, 3],,,,], [1, 2, 3,,,,]); |
| michael@0 | 13 | assertEqArray([,,...[1, 2, 3],,,,], [,,1,2,3,,,,]); |
| michael@0 | 14 | |
| michael@0 | 15 | assertEqArray([...[undefined]], [undefined]); |
| michael@0 | 16 | |
| michael@0 | 17 | // other iterable objects |
| michael@0 | 18 | assertEqArray([...new Int32Array([1, 2, 3])], [1, 2, 3]); |
| michael@0 | 19 | assertEqArray([..."abc"], ["a", "b", "c"]); |
| michael@0 | 20 | assertEqArray([...[1, 2, 3][std_iterator]()], [1, 2, 3]); |
| michael@0 | 21 | assertEqArray([...Set([1, 2, 3])], [1, 2, 3]); |
| michael@0 | 22 | assertEqArray([...Map([["a", "A"], ["b", "B"], ["c", "C"]])].map(([k, v]) => k + v), ["aA", "bB", "cC"]); |
| michael@0 | 23 | let itr = {}; |
| michael@0 | 24 | itr[std_iterator] = function () { |
| michael@0 | 25 | return { |
| michael@0 | 26 | i: 1, |
| michael@0 | 27 | next: function() { |
| michael@0 | 28 | if (this.i < 4) |
| michael@0 | 29 | return { value: this.i++, done: false }; |
| michael@0 | 30 | else |
| michael@0 | 31 | return { value: undefined, done: true }; |
| michael@0 | 32 | } |
| michael@0 | 33 | }; |
| michael@0 | 34 | } |
| michael@0 | 35 | assertEqArray([...itr], [1, 2, 3]); |
| michael@0 | 36 | function* gen() { |
| michael@0 | 37 | for (let i = 1; i < 4; i ++) |
| michael@0 | 38 | yield i; |
| michael@0 | 39 | } |
| michael@0 | 40 | assertEqArray([...gen()], [1, 2, 3]); |
| michael@0 | 41 | |
| michael@0 | 42 | let a, b = [1, 2, 3]; |
| michael@0 | 43 | assertEqArray([...a=b], [1, 2, 3]); |
| michael@0 | 44 | |
| michael@0 | 45 | // According to the draft spec, null and undefined are to be treated as empty |
| michael@0 | 46 | // arrays. However, they are not iterable. If the spec is not changed to be in |
| michael@0 | 47 | // terms of iterables, these tests should be fixed. |
| michael@0 | 48 | //assertEqArray([1, ...null, 2], [1, 2]); |
| michael@0 | 49 | //assertEqArray([1, ...undefined, 2], [1, 2]); |
| michael@0 | 50 | assertThrowsInstanceOf(() => [...null], TypeError); |
| michael@0 | 51 | assertThrowsInstanceOf(() => [...undefined], TypeError); |
| michael@0 | 52 |
