@alifd/meet-react
Version:
Fusion Mobile React UI System Component
51 lines • 2.52 kB
JavaScript
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { isNil } from '../utils';
var Cache = /*#__PURE__*/function () {
function Cache() {
_classCallCheck(this, Cache);
this._root = null;
this._store = new Map();
}
_createClass(Cache, [{
key: "empty",
value: function empty() {
return this._store.size === 0;
}
}, {
key: "has",
value: function has(key) {
return this._store.has(key);
}
}, {
key: "get",
value: function get(key, defaultValue) {
var res = this.has(key) ? this._store.get(key) : this.root();
return isNil(res) ? defaultValue : res;
}
}, {
key: "add",
value: function add(key, value) {
if (this.empty()) {
this._root = key;
}
this._store.set(key, value);
}
}, {
key: "remove",
value: function remove(key) {
this._store["delete"](key);
}
}, {
key: "root",
value: function root() {
return this._store.get(this._root);
}
}]);
return Cache;
}();
export default Cache;