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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 | |
3 // found in the LICENSE file. | |
4 // | |
5 // Flags: --harmony-destructuring-bind --harmony-default-parameters | |
6 | |
7 (function testExpressionTypes() { | |
8 "use strict"; | |
9 ((x, y = x) => assertEquals(42, y))(42); | |
10 | |
11 ((x, y = (x)) => assertEquals(42, y))(42); | |
12 ((x, y = `${x}`) => assertEquals("42", y))(42); | |
13 ((x, y = x = x + 1) => assertEquals(43, y))(42); | |
14 ((x, y = x()) => assertEquals(42, y))(() => 42); | |
15 ((x, y = new x()) => assertEquals(42, y.z))(function() { this.z = 42 }); | |
16 ((x, y = -x) => assertEquals(-42, y))(42); | |
17 ((x, y = ++x) => assertEquals(43, y))(42); | |
18 ((x, y = x === 42) => assertTrue(y))(42); | |
19 ((x, y = (x == 42 ? x : 0)) => assertEquals(42, y))(42); | |
20 | |
21 ((x, y = function() { return x }) => assertEquals(42, y()))(42); | |
22 ((x, y = () => x) => assertEquals(42, y()))(42); | |
23 | |
24 // Literals | |
25 ((x, y = {z: x}) => assertEquals(42, y.z))(42); | |
26 ((x, y = {[x]: x}) => assertEquals(42, y[42]))(42); | |
27 ((x, y = [x]) => assertEquals(42, y[0]))(42); | |
28 ((x, y = [...x]) => assertEquals(42, y[0]))([42]); | |
29 | |
30 ((x, y = class { | |
31 static [x]() { return x } | |
32 }) => assertEquals(42, y[42]()))(42); | |
33 ((x, y = (new class { | |
34 z() { return x } | |
35 })) => assertEquals(42, y.z()))(42); | |
36 | |
37 ((x, y = (new class Y { | |
38 static [x]() { return x } | |
39 z() { return Y[42]() } | |
40 })) => assertEquals(42, y.z()))(42); | |
41 | |
42 ((x, y = (new class { | |
43 constructor() { this.z = x } | |
44 })) => assertEquals(42, y.z))(42); | |
45 ((x, y = (new class Y { | |
46 constructor() { this.z = x } | |
47 })) => assertEquals(42, y.z))(42); | |
48 | |
49 ((x, y = (new class extends x { | |
50 })) => assertEquals(42, y.z()))(class { z() { return 42 } }); | |
51 | |
52 // Defaults inside destructuring | |
53 ((x, {y = x}) => assertEquals(42, y))(42, {}); | |
54 ((x, [y = x]) => assertEquals(42, y))(42, []); | |
55 })(); | |
56 | |
57 | |
58 (function testMultiScopeCapture() { | |
59 "use strict"; | |
60 var x = 1; | |
61 { | |
62 let y = 2; | |
63 ((x, y, a = x, b = y) => { | |
64 assertEquals(3, x); | |
65 assertEquals(3, a); | |
66 assertEquals(4, y); | |
67 assertEquals(4, b); | |
68 })(3, 4); | |
69 } | |
70 })(); | |
71 | |
72 | |
73 (function testSuper() { | |
74 "use strict"; | |
75 class A { | |
76 x() { return 42; } | |
77 } | |
78 | |
79 class B extends A { | |
80 y() { | |
81 ((q = super.x()) => assertEquals(42, q))(); | |
82 } | |
83 } | |
84 | |
85 new B().y(); | |
86 | |
87 class C { | |
88 constructor() { return { prop: 42 } } | |
89 } | |
90 | |
91 class D extends C{ | |
92 constructor() { | |
93 ((q = super()) => assertEquals(42, q.prop))(); | |
94 } | |
95 } | |
96 | |
97 new D(); | |
98 })(); | |
99 | |
100 | |
101 (function testScopeFlags() { | |
102 ((x, y = eval('x')) => assertEquals(42, y))(42); | |
103 ((x, {y = eval('x')}) => assertEquals(42, y))(42, {}); | |
104 })(); | |
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