eae5d8c807
These conflicts will be resolved in the following commits. We do it this way so that PR review is possible.
41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { globals } from 'vs/base/common/platform';
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const hasPerformanceNow = (globals.performance && typeof globals.performance.now === 'function');
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export class StopWatch {
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private _highResolution: boolean;
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private _startTime: number;
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private _stopTime: number;
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public static create(highResolution: boolean = true): StopWatch {
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return new StopWatch(highResolution);
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}
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constructor(highResolution: boolean) {
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this._highResolution = hasPerformanceNow && highResolution;
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this._startTime = this._now();
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this._stopTime = -1;
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}
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public stop(): void {
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this._stopTime = this._now();
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}
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public elapsed(): number {
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if (this._stopTime !== -1) {
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return this._stopTime - this._startTime;
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}
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return this._now() - this._startTime;
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}
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private _now(): number {
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return this._highResolution ? globals.performance.now() : Date.now();
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}
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}
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