@theia/core
Version:
Theia is a cloud & desktop IDE framework implemented in TypeScript.
67 lines • 2.87 kB
JavaScript
;
/********************************************************************************
* Copyright (c) 2019, 2021 TypeFox, STMicroelectronics and others.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the Eclipse
* Public License v. 2.0 are satisfied: GNU General Public License, version 2
* with the GNU Classpath Exception which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
*******************************************************************************/
Object.defineProperty(exports, "__esModule", { value: true });
exports.FrontendStopwatch = void 0;
const tslib_1 = require("tslib");
const inversify_1 = require("inversify");
const common_1 = require("../../common");
let FrontendStopwatch = class FrontendStopwatch extends common_1.Stopwatch {
constructor() {
super({
owner: 'frontend',
now: () => performance.now(),
});
}
start(name, options) {
const startMarker = `${name}-start`;
const endMarker = `${name}-end`;
performance.clearMeasures(name);
performance.clearMarks(startMarker);
performance.clearMarks(endMarker);
performance.mark(startMarker);
return this.createMeasurement(name, () => {
var _a, _b;
performance.mark(endMarker);
let duration;
let startTime;
try {
performance.measure(name, startMarker, endMarker);
const entries = performance.getEntriesByName(name);
// If no entries, then performance measurement was disabled or failed, so
// signal that with a `NaN` result
duration = (_a = entries[0].duration) !== null && _a !== void 0 ? _a : Number.NaN;
startTime = (_b = entries[0].startTime) !== null && _b !== void 0 ? _b : Number.NaN;
}
catch (e) {
console.warn(e);
duration = Number.NaN;
startTime = Number.NaN;
}
performance.clearMeasures(name);
performance.clearMarks(startMarker);
performance.clearMarks(endMarker);
return { startTime, duration };
}, options);
}
};
exports.FrontendStopwatch = FrontendStopwatch;
exports.FrontendStopwatch = FrontendStopwatch = tslib_1.__decorate([
(0, inversify_1.injectable)(),
tslib_1.__metadata("design:paramtypes", [])
], FrontendStopwatch);
;
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