blob: f55ade0a5e4fe48e679843221a60c0465ca88a3f (
plain)
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
|
// This file was procedurally generated from the following sources:
// - src/spread/mult-err-itr-step.case
// - src/spread/error/array.template
/*---
description: Spread operator following other arguments when IteratorStep fails (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
features: [Symbol.iterator]
flags: [generated]
info: |
SpreadElement : ...AssignmentExpression
1. Let spreadRef be the result of evaluating AssignmentExpression.
2. Let spreadObj be ? GetValue(spreadRef).
3. Let iterator be ? GetIterator(spreadObj).
4. Repeat
a. Let next be ? IteratorStep(iterator).
b. If next is false, return nextIndex.
c. Let nextValue be ? IteratorValue(next).
d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)),
nextValue).
e. Assert: status is true.
f. Let nextIndex be nextIndex + 1.
12.3.6.1 Runtime Semantics: ArgumentListEvaluation
ArgumentList : ArgumentList , ... AssignmentExpression
1. Let precedingArgs be the result of evaluating ArgumentList.
2. Let spreadRef be the result of evaluating AssignmentExpression.
3. Let iterator be GetIterator(GetValue(spreadRef) ).
4. ReturnIfAbrupt(iterator).
7.4.5 IteratorStep ( iterator )
1. Let result be IteratorNext(iterator).
2. ReturnIfAbrupt(result).
7.4.2 IteratorNext ( iterator, value )
1. If value was not passed, then
a. Let result be Invoke(iterator, "next", « »).
[...]
3. ReturnIfAbrupt(result).
---*/
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
throw new Test262Error();
}
};
};
assert.throws(Test262Error, function() {
[0, ...iter];
});
reportCompare(0, 0);
|
