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comparison: js/src/jit-test/tests/basic/spread-array.js
js/src/jit-test/tests/basic/spread-array.js
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| -1:000000000000 | 0:70f0117c2793 |
|---|---|
| 1 load(libdir + "asserts.js"); | |
| 2 load(libdir + "iteration.js"); | |
| 3 load(libdir + "eqArrayHelper.js"); | |
| 4 | |
| 5 assertEqArray([...[1, 2, 3]], [1, 2, 3]); | |
| 6 assertEqArray([1, ...[2, 3, 4], 5], [1, 2, 3, 4, 5]); | |
| 7 assertEqArray([1, ...[], 2], [1, 2]); | |
| 8 assertEqArray([1, ...[2, 3], 4, ...[5, 6]], [1, 2, 3, 4, 5, 6]); | |
| 9 assertEqArray([1, ...[], 2], [1, 2]); | |
| 10 assertEqArray([1,, ...[2]], [1,, 2]); | |
| 11 assertEqArray([1,, ...[2],, 3,, 4,], [1,, 2,, 3,, 4,]); | |
| 12 assertEqArray([...[1, 2, 3],,,,], [1, 2, 3,,,,]); | |
| 13 assertEqArray([,,...[1, 2, 3],,,,], [,,1,2,3,,,,]); | |
| 14 | |
| 15 assertEqArray([...[undefined]], [undefined]); | |
| 16 | |
| 17 // other iterable objects | |
| 18 assertEqArray([...new Int32Array([1, 2, 3])], [1, 2, 3]); | |
| 19 assertEqArray([..."abc"], ["a", "b", "c"]); | |
| 20 assertEqArray([...[1, 2, 3][std_iterator]()], [1, 2, 3]); | |
| 21 assertEqArray([...Set([1, 2, 3])], [1, 2, 3]); | |
| 22 assertEqArray([...Map([["a", "A"], ["b", "B"], ["c", "C"]])].map(([k, v]) => k + v), ["aA", "bB", "cC"]); | |
| 23 let itr = {}; | |
| 24 itr[std_iterator] = function () { | |
| 25 return { | |
| 26 i: 1, | |
| 27 next: function() { | |
| 28 if (this.i < 4) | |
| 29 return { value: this.i++, done: false }; | |
| 30 else | |
| 31 return { value: undefined, done: true }; | |
| 32 } | |
| 33 }; | |
| 34 } | |
| 35 assertEqArray([...itr], [1, 2, 3]); | |
| 36 function* gen() { | |
| 37 for (let i = 1; i < 4; i ++) | |
| 38 yield i; | |
| 39 } | |
| 40 assertEqArray([...gen()], [1, 2, 3]); | |
| 41 | |
| 42 let a, b = [1, 2, 3]; | |
| 43 assertEqArray([...a=b], [1, 2, 3]); | |
| 44 | |
| 45 // According to the draft spec, null and undefined are to be treated as empty | |
| 46 // arrays. However, they are not iterable. If the spec is not changed to be in | |
| 47 // terms of iterables, these tests should be fixed. | |
| 48 //assertEqArray([1, ...null, 2], [1, 2]); | |
| 49 //assertEqArray([1, ...undefined, 2], [1, 2]); | |
| 50 assertThrowsInstanceOf(() => [...null], TypeError); | |
| 51 assertThrowsInstanceOf(() => [...undefined], TypeError); | |
| 52 |
