@uirouter/core/lib/common/queue.js.map

{
  "version": 3,
  "file": "queue.js",
  "sourceRoot": "",
  "sources": [
    "@uirouter/core/common/queue.ts"
  ],
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  "sourcesContent": [
    "import { pushTo } from './common';\n\nexport class Queue<T> {\n  private _evictListeners: ((item: T) => void)[] = [];\n  public onEvict = pushTo(this._evictListeners);\n\n  constructor(private _items: T[] = [], private _limit: number = null) {}\n\n  enqueue(item: T) {\n    const items = this._items;\n    items.push(item);\n    if (this._limit && items.length > this._limit) this.evict();\n    return item;\n  }\n\n  evict(): T {\n    const item: T = this._items.shift();\n    this._evictListeners.forEach((fn) => fn(item));\n    return item;\n  }\n\n  dequeue(): T {\n    if (this.size()) return this._items.splice(0, 1)[0];\n  }\n\n  clear(): Array<T> {\n    const current = this._items;\n    this._items = [];\n    return current;\n  }\n\n  size(): number {\n    return this._items.length;\n  }\n\n  remove(item: T) {\n    const idx = this._items.indexOf(item);\n    return idx > -1 && this._items.splice(idx, 1)[0];\n  }\n\n  peekTail(): T {\n    return this._items[this._items.length - 1];\n  }\n\n  peekHead(): T {\n    if (this.size()) return this._items[0];\n  }\n}\n"
  ]
}