1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: |
White Space and Line Terminator between LeftHandSideExpression and "@="
or between "@=" and AssignmentExpression are allowed
esid: sec-assignment-operators
description: Checking by evaluating expression "x[...]??=[...]y"
features: [logical-assignment-operators]
---*/
var x;
x = null;
assert.sameValue(x ??= 1, 1, 'U+0009 (expression)');
assert.sameValue(x, 1, 'U+0009 (side effect)');
x = null;
assert.sameValue(x ??= 1, 1, 'U+000B (expression)');
assert.sameValue(x, 1, 'U+000B (side effect)');
x = null;
assert.sameValue(x ??= 1, 1, 'U+000C (expression)');
assert.sameValue(x, 1, 'U+000C (side effect)');
x = null;
assert.sameValue(x ??= 1, 1, 'U+0020 (expression)');
assert.sameValue(x, 1, 'U+0020 (side effect)');
x = null;
assert.sameValue(x ??= 1, 1, 'U+00A0 (expression)');
assert.sameValue(x, 1, 'U+00A0 (side effect)');
x = null;
assert.sameValue(x
??=
1, 1, 'U+000A (expression)');
assert.sameValue(x, 1, 'U+000A (side effect)');
x = null;
assert.sameValue(x
??=
1, 1, 'U+000D (expression)');
assert.sameValue(x, 1, 'U+000D (side effect)');
x = null;
assert.sameValue(x
??=
1, 1, 'U+2028 (expression)');
assert.sameValue(x, 1, 'U+2028 (side effect)');
x = null;
assert.sameValue(x
??=
1, 1, 'U+2029 (expression)');
assert.sameValue(x, 1, 'U+2029 (side effect)');
x = null;
assert.sameValue(x
??=
1, 1, 'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (expression)');
assert.sameValue(x, 1, 'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (side effect)');
reportCompare(0, 0);
|
