blob: 5cb34973ce9306558b1ca5b297143264d3230577 (
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var ITERATOR = require('./_wks')('iterator');
var SAFE_CLOSING = false;
try {
var riter = [7][ITERATOR]();
riter['return'] = function () { SAFE_CLOSING = true; };
// eslint-disable-next-line no-throw-literal
Array.from(riter, function () { throw 2; });
} catch (e) { /* empty */ }
module.exports = function (exec, skipClosing) {
if (!skipClosing && !SAFE_CLOSING) return false;
var safe = false;
try {
var arr = [7];
var iter = arr[ITERATOR]();
iter.next = function () { return { done: safe = true }; };
arr[ITERATOR] = function () { return iter; };
exec(arr);
} catch (e) { /* empty */ }
return safe;
};
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