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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 invoking map function (traversed via iterator)
info: |
[...]
6. If usingIterator is not undefined, then
[...]
g. Repeat
[...]
vii. If mapping is true, then
1. Let mappedValue be Call(mapfn, T, «nextValue, k»).
2. If mappedValue is an abrupt completion, return
IteratorClose(iterator, mappedValue).
features: [Symbol.iterator]
---*/
var closeCount = 0;
var mapFn = function() {
throw new Test262Error();
};
var items = {};
items[Symbol.iterator] = function() {
return {
return: function() {
closeCount += 1;
},
next: function() {
return {
done: false
};
}
};
};
assert.throws(Test262Error, function() {
Array.from(items, mapFn);
});
assert.sameValue(closeCount, 1);
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