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

Interactivity plugin for @atlaskit/editor-core

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BoundedMap = void 0;
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
/** A `Map` that forgets its oldest entry once it holds more than `limit`. */
var BoundedMap = exports.BoundedMap = /*#__PURE__*/function () {
  function BoundedMap(limit) {
    (0, _classCallCheck2.default)(this, BoundedMap);
    (0, _defineProperty2.default)(this, "entries", new Map());
    this.limit = limit;
  }
  return (0, _createClass2.default)(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);
      }
    }
  }]);
}();