mirror of
https://github.com/tc39/test262.git
synced 2025-11-03 21:24:30 +01:00
43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
// 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: Does not close iterators with an uncallable `next` property.
|
|
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,
|
|
a. Let next be ? IteratorStep(iteratorRecord).
|
|
|
|
|
|
IteratorStep ( iteratorRecord )
|
|
|
|
1. Let result be ? IteratorNext(iteratorRecord).
|
|
features: [Symbol.iterator, Object.fromEntries]
|
|
---*/
|
|
|
|
var iterable = {
|
|
[Symbol.iterator]: function() {
|
|
return {
|
|
next: null,
|
|
return: function() {
|
|
throw new Test262Error('should not call return');
|
|
},
|
|
};
|
|
},
|
|
};
|
|
|
|
assert.sameValue(typeof Object.fromEntries, 'function');
|
|
assert.throws(TypeError, function() {
|
|
Object.fromEntries(iterable);
|
|
});
|