@atlaskit/editor-plugin-interactivity/dist/esm/collections/bounded-map.js

Interactivity plugin for @atlaskit/editor-core

import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
/** A `Map` that forgets its oldest entry once it holds more than `limit`. */
export var BoundedMap = /*#__PURE__*/function () {
  function BoundedMap(limit) {
    _classCallCheck(this, BoundedMap);
    _defineProperty(this, "entries", new Map());
    this.limit = limit;
  }
  return _createClass(BoundedMap, [{
    key: "get",
    value: function get(key) {
      return this.entries.get(key);
    }
  }, {
    key: "forEach",
    value: function forEach(visit) {
      this.entries.forEach(visit);
    }
  }, {
    key: "set",
    value: function set(key, value) {
      this.entries.delete(key);
      this.entries.set(key, value);
      if (this.entries.size <= this.limit) {
        return;
      }
      var oldest = this.entries.keys().next();
      if (!oldest.done) {
        this.entries.delete(oldest.value);
      }
    }
  }]);
}();