Module 67733

function(e,t,n){"use strict";n.d(t,{J:()=>r});class r{*[Symbol.iterator](){yield*this.iterable}get size(){return this._size}getKeys(){return this.keyMap.keys()}getKeyBefore(e){var t;let n=this.keyMap.get(e);return n&&null!=(t=n.prevKey)?t:null}getKeyAfter(e){var t;let n=this.keyMap.get(e);return n&&null!=(t=n.nextKey)?t:null}getFirstKey(){return this.firstKey}getLastKey(){return this.lastKey}getItem(e){var t;return null!=(t=this.keyMap.get(e))?t:null}at(e){let t=[...this.getKeys()];return this.getItem(t[e])}getChildren(e){let t=this.keyMap.get(e);return(null==t?void 0:t.childNodes)||[]}constructor(e){var t;this.keyMap=new Map,this.firstKey=null,this.lastKey=null,this.iterable=e;let n=e=>{if(this.keyMap.set(e.key,e),e.childNodes&&"section"===e.type)for(let t of e.childNodes)n(t)};for(let t of e)n(t);let r=null,i=0,s=0;for(let[e,t]of this.keyMap)r?(r.nextKey=e,t.prevKey=r.key):(this.firstKey=e,t.prevKey=void 0),"item"===t.type&&(t.index=i++),("section"===t.type||"item"===t.type)&&s++,(r=t).nextKey=void 0;this._size=s,this.lastKey=null!=(t=null==r?void 0:r.key)?t:null}}}