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var MapCache = require('./_MapCache'),    setCacheAdd = require('./_setCacheAdd'),    setCacheHas = require('./_setCacheHas');
/** * * Creates an array cache object to store unique values. * * @private * @constructor * @param {Array} [values] The values to cache. */function SetCache(values) {  var index = -1,      length = values == null ? 0 : values.length;
  this.__data__ = new MapCache;  while (++index < length) {    this.add(values[index]);  }}
// Add methods to `SetCache`.SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;SetCache.prototype.has = setCacheHas;
module.exports = SetCache;