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// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options
// Copyright (C) 2023 Michael Ficarra. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-iteratorprototype.map
description: >
Attempts to close iterator when mapper throws, but that throws
info: |
%Iterator.prototype%.map ( mapper )
5.b.v. IfAbruptCloseIterator(mapped, iterated).
features: [iterator-helpers]
flags: []
---*/
let returnCalls = 0;
class TestIterator extends Iterator {
next() {
return {
done: false,
value: 1,
};
}
return() {
++returnCalls;
throw new Error();
}
}
let iterator = new TestIterator().map(() => {
throw new Test262Error();
});
assert.sameValue(returnCalls, 0);
assert.throws(Test262Error, function () {
iterator.next();
});
assert.sameValue(returnCalls, 1);
reportCompare(0, 0);
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