Function makeOrderedMap

src/OrderedMap.js:100–109

(map, list, ownerID, hash)

OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;

function makeOrderedMap(map, list, ownerID, hash) {
  const omap = Object.create(OrderedMap.prototype);
  omap.size = map ? map.size : 0;
  omap._map = map;
  omap._list = list;
  omap.__ownerID = ownerID;
  omap.__hash = hash;
  omap.__altered = false;
  return omap;
}

let EMPTY_ORDERED_MAP;
export function emptyOrderedMap() {