sussudio
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An unofficial VS Code Internal API
36 lines (35 loc) • 1.25 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* 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.mjs";
const hasPerformanceNow = (globals.performance && typeof globals.performance.now === 'function');
export class StopWatch {
_highResolution;
_startTime;
_stopTime;
static create(highResolution = true) {
return new StopWatch(highResolution);
}
constructor(highResolution) {
this._highResolution = hasPerformanceNow && highResolution;
this._startTime = this._now();
this._stopTime = -1;
}
stop() {
this._stopTime = this._now();
}
reset() {
this._startTime = this._now();
this._stopTime = -1;
}
elapsed() {
if (this._stopTime !== -1) {
return this._stopTime - this._startTime;
}
return this._now() - this._startTime;
}
_now() {
return this._highResolution ? globals.performance.now() : Date.now();
}
}