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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import Logger from "../utils/Logger";
if (IS_DEV) {
var traces = {} as Record<string, [number, any[]]>;
var logger = new Logger("Tracer", "#FFD166");
}
const noop = function () { };
export const beginTrace = !IS_DEV ? noop :
function beginTrace(name: string, ...args: any[]) {
if (name in traces)
throw new Error(`Trace ${name} already exists!`);
traces[name] = [performance.now(), args];
};
export const finishTrace = !IS_DEV ? noop : function finishTrace(name: string) {
const end = performance.now();
const [start, args] = traces[name];
delete traces[name];
logger.debug(`${name} took ${end - start}ms`, args);
};
type Func = (...args: any[]) => any;
type TraceNameMapper<F extends Func> = (...args: Parameters<F>) => string;
const noopTracer =
<F extends Func>(name: string, f: F, mapper?: TraceNameMapper<F>) => f;
export const traceFunction = !IS_DEV
? noopTracer
: function traceFunction<F extends Func>(name: string, f: F, mapper?: TraceNameMapper<F>): F {
return function (this: any, ...args: Parameters<F>) {
const traceName = mapper?.(...args) ?? name;
beginTrace(traceName, ...arguments);
try {
return f.apply(this, args);
} finally {
finishTrace(traceName);
}
} as F;
};
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