strictNullChecks (#4666)

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src/services/logger.ts

@@ -9,14 +9,14 @@ import { genId } from '../misc/gen-id';
 
 type Domain = {
 	name: string;
-	color: string;
+	color?: string;
 };
 
 type Level = 'error' | 'success' | 'warning' | 'debug' | 'info';
 
 export default class Logger {
 	private domain: Domain;
-	private parentLogger: Logger;
+	private parentLogger: Logger | null = null;
 	private store: boolean;
 
 	constructor(domain: string, color?: string, store = true) {
@@ -33,7 +33,7 @@ export default class Logger {
 		return logger;
 	}
 
-	private log(level: Level, message: string, data: Record<string, any>, important = false, subDomains: Domain[] = [], store = true): void {
+	private log(level: Level, message: string, data?: Record<string, any> | null, important = false, subDomains: Domain[] = [], store = true): void {
 		if (program.quiet) return;
 		if (!this.store) store = false;
 
@@ -80,7 +80,7 @@ export default class Logger {
 		}
 	}
 
-	public error(x: string | Error, data?: Record<string, any>, important = false): void { // 実行を継続できない状況で使う
+	public error(x: string | Error, data?: Record<string, any> | null, important = false): void { // 実行を継続できない状況で使う
 		if (x instanceof Error) {
 			data = data || {};
 			data.e = x;
@@ -90,21 +90,21 @@ export default class Logger {
 		}
 	}
 
-	public warn(message: string, data?: Record<string, any>, important = false): void {　// 実行を継続できるが改善すべき状況で使う
+	public warn(message: string, data?: Record<string, any> | null, important = false): void {　// 実行を継続できるが改善すべき状況で使う
 		this.log('warning', message, data, important);
 	}
 
-	public succ(message: string, data?: Record<string, any>, important = false): void { // 何かに成功した状況で使う
+	public succ(message: string, data?: Record<string, any> | null, important = false): void { // 何かに成功した状況で使う
 		this.log('success', message, data, important);
 	}
 
-	public debug(message: string, data?: Record<string, any>, important = false): void { // デバッグ用に使う(開発者に必要だが利用者に不要な情報)
+	public debug(message: string, data?: Record<string, any> | null, important = false): void { // デバッグ用に使う(開発者に必要だが利用者に不要な情報)
 		if (process.env.NODE_ENV != 'production' || program.verbose) {
 			this.log('debug', message, data, important);
 		}
 	}
 
-	public info(message: string, data?: Record<string, any>, important = false): void { // それ以外
+	public info(message: string, data?: Record<string, any> | null, important = false): void { // それ以外
 		this.log('info', message, data, important);
 	}
 }