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Add tracer, fix MessageActions slow startup
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851d07f31a
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4 changed files with 87 additions and 21 deletions
63
src/debug/Tracer.ts
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63
src/debug/Tracer.ts
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/*
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* Vencord, a modification for Discord's desktop app
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* Copyright (c) 2022 Vendicated and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import Logger from "../utils/logger";
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if (IS_DEV) {
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var traces = {} as Record<string, [number, any[]]>;
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var logger = new Logger("Tracer", "#FFD166");
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}
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const noop = function () { };
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export const beginTrace = !IS_DEV ? noop :
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function beginTrace(name: string, ...args: any[]) {
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if (name in traces)
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throw new Error(`Trace ${name} already exists!`);
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traces[name] = [performance.now(), args];
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};
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export const finishTrace = !IS_DEV ? noop : function finishTrace(name: string) {
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const end = performance.now();
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const [start, args] = traces[name];
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delete traces[name];
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logger.debug(`${name} took ${end - start}ms`, args);
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};
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type Func = (...args: any[]) => any;
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type TraceNameMapper<F extends Func> = (...args: Parameters<F>) => string;
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const noopTracer =
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<F extends Func>(name: string, f: F, mapper?: TraceNameMapper<F>) => f;
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export const traceFunction = !IS_DEV
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? noopTracer
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: function traceFunction<F extends Func>(name: string, f: F, mapper?: TraceNameMapper<F>): F {
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return function (this: any, ...args: Parameters<F>) {
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const traceName = mapper?.(...args) ?? name;
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beginTrace(traceName, ...arguments);
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const result = f.apply(this, args);
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finishTrace(traceName);
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return result;
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} as F;
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};
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