blob: 9d4a12470e651745e2fa27acde8a7338290fd159 (
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
|
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elision.case
// - src/dstr-binding/default/try.template
/*---
description: Elision advances iterator (try statement)
esid: sec-runtime-semantics-catchclauseevaluation
features: [generators, destructuring-binding]
flags: [generated]
info: |
Catch : catch ( CatchParameter ) Block
[...]
5. Let status be the result of performing BindingInitialization for
CatchParameter passing thrownValue and catchEnv as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
---*/
var first = 0;
var second = 0;
function* g() {
first += 1;
yield;
second += 1;
};
var ranCatch = false;
try {
throw g();
} catch ([,]) {
assert.sameValue(first, 1);
assert.sameValue(second, 0);
ranCatch = true;
}
assert(ranCatch, 'executed `catch` block');
reportCompare(0, 0);
|