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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 var typedArrayConstructors = [ | 5 var typedArrayConstructors = [ |
6 Uint8Array, | 6 Uint8Array, |
7 Int8Array, | 7 Int8Array, |
8 Uint16Array, | 8 Uint16Array, |
9 Int16Array, | 9 Int16Array, |
10 Uint32Array, | 10 Uint32Array, |
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61 constructor.prototype.slice.call([], 0, 0); | 61 constructor.prototype.slice.call([], 0, 0); |
62 }, TypeError); | 62 }, TypeError); |
63 | 63 |
64 // Check that elements are copied properly in slice | 64 // Check that elements are copied properly in slice |
65 array = new constructor([1, 2, 3, 4]); | 65 array = new constructor([1, 2, 3, 4]); |
66 var slice = array.slice(1, 3); | 66 var slice = array.slice(1, 3); |
67 assertEquals(2, slice.length); | 67 assertEquals(2, slice.length); |
68 assertEquals(2, slice[0]); | 68 assertEquals(2, slice[0]); |
69 assertEquals(3, slice[1]); | 69 assertEquals(3, slice[1]); |
70 assertTrue(slice instanceof constructor); | 70 assertTrue(slice instanceof constructor); |
71 | |
72 // Check that the result array is properly created by checking species | |
Camillo Bruni
2017/03/20 13:37:25
Could you extend this and add specific tests with
Choongwoo Han
2017/03/21 12:39:03
Done.
| |
73 class MyFloat64Array extends Float64Array { | |
74 static get[Symbol.species]() { | |
75 return constructor; | |
76 } | |
77 } | |
78 var arr = new MyFloat64Array([-1.0, 0, 255, 256]); | |
79 assertEquals(new constructor([-1.0, 0, 255, 256]), arr.slice()); | |
80 | |
81 class MyTypedArray extends constructor { | |
82 static get[Symbol.species]() { | |
83 return Array; | |
84 } | |
85 } | |
86 var arr = new MyTypedArray([-1.0, 0, 255, 256]); | |
87 assertThrows(() => arr.slice(), TypeError); | |
71 } | 88 } |
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