Source code
Revision control
Copy as Markdown
Other Tools
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-no-close.case
// - src/dstr-binding/default/try.template
/*---
description: Iterator is not closed when exhausted by pattern evaluation (try statement)
esid: sec-runtime-semantics-catchclauseevaluation
features: [Symbol.iterator, 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.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
---*/
var doneCallCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return { value: null, done: true };
},
return: function() {
doneCallCount += 1;
return {};
}
};
};
var ranCatch = false;
try {
throw iter;
} catch ([x]) {
assert.sameValue(doneCallCount, 0);
ranCatch = true;
}
assert(ranCatch, 'executed `catch` block');
reportCompare(0, 0);