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
61
|
// |reftest| async
// This file was procedurally generated from the following sources:
// - src/dstr-binding-for-await/obj-ptrn-prop-obj-value-null.case
// - src/dstr-binding-for-await/error/for-await-of-async-func-var.template
/*---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (for-await-of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
features: [destructuring-binding, async-iteration]
flags: [generated, async]
info: |
IterationStatement :
for await ( var ForBinding of AssignmentExpression ) Statement
[...]
2. Return ? ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult,
varBinding, labelSet, async).
13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
[...]
4. Let destructuring be IsDestructuring of lhs.
[...]
6. Repeat
[...]
j. If destructuring is false, then
[...]
k. Else
i. If lhsKind is assignment, then
[...]
ii. Else if lhsKind is varBinding, then
[...]
iii. Else,
1. Assert: lhsKind is lexicalBinding.
2. Assert: lhs is a ForDeclaration.
3. Let status be the result of performing BindingInitialization
for lhs passing nextValue and iterationEnv as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
async function fn() {
for await (var { w: { x, y, z } = { x: 4, y: 5, z: 6 } } of [{ w: null }]) {
return;
}
}
fn()
.then(_ => {
throw new Test262Error("Expected async function to reject, but resolved.");
}, ({ constructor }) => {
assert.sameValue(constructor, TypeError);
})
.then($DONE, $DONE);
|
