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'use strict';
var setPrototypeOf = require('../object/set-prototype-of')
, isExtensible = require('./_is-extensible');
module.exports = (function () {
var SubArray;
if (isExtensible) return require('./_sub-array-dummy');
if (!setPrototypeOf) return null;
SubArray = function () {
var arr = Array.apply(this, arguments);
setPrototypeOf(arr, SubArray.prototype);
return arr;
};
setPrototypeOf(SubArray, Array);
SubArray.prototype = Object.create(Array.prototype, {
constructor: { value: SubArray, enumerable: false, writable: true,
configurable: true }
});
return SubArray;
}());
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