text: /*---------------------------------------------------------------------------------------------
   *  Copyright (c) Microsoft Corporation. All rights reserved.
   *  Licensed under the MIT License. See License.txt in the project root for license information.
   *--------------------------------------------------------------------------------------------*/
  import { globals } from './platform';
  const hasPerformanceNow = (globals.performance && typeof globals.performance.now === 'function');
  export class StopWatch {
      constructor(highResolution) {
          this._highResolution = hasPerformanceNow && highResolution;
          this._startTime = this._now();
          this._stopTime = -1;
      }
      static create(highResolution = true) {
          return new StopWatch(highResolution);
      }
      stop() {
          this._stopTime = this._now();
      }
      elapsed() {
          if (this._stopTime !== -1) {
              return this._stopTime - this._startTime;
          }
          return this._now() - this._startTime;
      }
      _now() {
          return this._highResolution ? globals.performance.now() : Date.now();
      }
  }
  