@21epub/epub-thirdparty
Version:
epub-thirdparty
30 lines (29 loc) • 1.14 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export var TreeMouseEventTarget;
(function (TreeMouseEventTarget) {
TreeMouseEventTarget[TreeMouseEventTarget["Unknown"] = 0] = "Unknown";
TreeMouseEventTarget[TreeMouseEventTarget["Twistie"] = 1] = "Twistie";
TreeMouseEventTarget[TreeMouseEventTarget["Element"] = 2] = "Element";
})(TreeMouseEventTarget || (TreeMouseEventTarget = {}));
export class TreeError extends Error {
constructor(user, message) {
super(`TreeError [${user}] ${message}`);
}
}
export class WeakMapper {
constructor(fn) {
this.fn = fn;
this._map = new WeakMap();
}
map(key) {
let result = this._map.get(key);
if (!result) {
result = this.fn(key);
this._map.set(key, result);
}
return result;
}
}