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// Copyright (C) 2018 Kevin Gibbons. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.fromentries
description: Closes iterators when accessing an entry's value throws.
info: |
Object.fromEntries ( iterable )
...
4. Let stepsDefine be the algorithm steps defined in CreateDataPropertyOnObject Functions.
5. Let adder be CreateBuiltinFunction(stepsDefine, « »).
6. Return ? AddEntriesFromIterable(obj, iterable, adder).
AddEntriesFromIterable ( target, iterable, adder )
...
4. Repeat,
...
g. Let v be Get(nextItem, "1").
h. If v is an abrupt completion, return ? IteratorClose(iteratorRecord, v).
features: [Symbol.iterator, Object.fromEntries]
---*/
function DummyError() {}
var returned = false;
var iterable = {
[Symbol.iterator]: function() {
var advanced = false;
return {
next: function() {
if (advanced) {
throw new Test262Error('should only advance once');
}
advanced = true;
return {
done: false,
value: {
get '0'() {
return 'key';
},
get '1'() {
throw new DummyError();
},
},
};
},
return: function() {
if (returned) {
throw new Test262Error('should only return once');
}
returned = true;
},
};
},
};
assert.throws(DummyError, function() {
Object.fromEntries(iterable);
});
assert(returned, 'iterator should be closed when entry value property access throws');
reportCompare(0, 0);
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