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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.from
es6id: 22.1.2.1
description: Error setting property on result value (traversed via iterator)
info: |
[...]
6. If usingIterator is not undefined, then
[...]
g. Repeat
[...]
ix. Let defineStatus be CreateDataPropertyOrThrow(A, Pk,
mappedValue).
x. If defineStatus is an abrupt completion, return
IteratorClose(iterator, defineStatus).
features: [Symbol.iterator]
---*/
var C = function() {
Object.defineProperty(this, '0', {
configurable: false
});
};
var closeCount = 0;
var items = {};
var nextResult = {
done: false
};
items[Symbol.iterator] = function() {
return {
return: function() {
closeCount += 1;
},
next: function() {
var result = nextResult;
nextResult = {
done: true
};
return result;
}
};
};
assert.throws(TypeError, function() {
Array.from.call(C, items);
});
assert.sameValue(closeCount, 1);
|
