@angular-devkit/core
Version:
Angular DevKit - Core Utility Library
49 lines • 4.41 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.PriorityQueue = void 0;
/** Naive priority queue; not intended for large datasets */
class PriorityQueue {
constructor(_comparator) {
this._comparator = _comparator;
this._items = new Array();
}
clear() {
this._items = new Array();
}
push(item) {
const index = this._items.findIndex((existing) => this._comparator(item, existing) <= 0);
if (index === -1) {
this._items.push(item);
}
else {
this._items.splice(index, 0, item);
}
}
pop() {
if (this._items.length === 0) {
return undefined;
}
return this._items.splice(0, 1)[0];
}
peek() {
if (this._items.length === 0) {
return undefined;
}
return this._items[0];
}
get size() {
return this._items.length;
}
toArray() {
return this._items.slice();
}
}
exports.PriorityQueue = PriorityQueue;
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