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Filename : CacheMap.js

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import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
import _createClass from "@babel/runtime/helpers/esm/createClass";
import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
// Firefox has low performance of map.
var CacheMap = /*#__PURE__*/function () {
  function CacheMap() {
    _classCallCheck(this, CacheMap);
    _defineProperty(this, "maps", void 0);
    // Used for cache key
    // `useMemo` no need to update if `id` not change
    _defineProperty(this, "id", 0);
    this.maps = Object.create(null);
  }
  _createClass(CacheMap, [{
    key: "set",
    value: function set(key, value) {
      this.maps[key] = value;
      this.id += 1;
    }
  }, {
    key: "get",
    value: function get(key) {
      return this.maps[key];
    }
  }]);
  return CacheMap;
}();
export default CacheMap;