refactoring

Resolve #7779

1 files changed, 0 insertions, 43 deletions

diff --git a/src/misc/cache.ts b/src/misc/cache.ts
deleted file mode 100644
index 71fbbd8a4c..0000000000
--- a/src/misc/cache.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-export class Cache<T> {
-	private cache: Map<string | null, { date: number; value: T; }>;
-	private lifetime: number;
-
-	constructor(lifetime: Cache<never>['lifetime']) {
-		this.cache = new Map();
-		this.lifetime = lifetime;
-	}
-
-	public set(key: string | null, value: T): void {
-		this.cache.set(key, {
-			date: Date.now(),
-			value
-		});
-	}
-
-	public get(key: string | null): T | undefined {
-		const cached = this.cache.get(key);
-		if (cached == null) return undefined;
-		if ((Date.now() - cached.date) > this.lifetime) {
-			this.cache.delete(key);
-			return undefined;
-		}
-		return cached.value;
-	}
-
-	public delete(key: string | null) {
-		this.cache.delete(key);
-	}
-
-	public async fetch(key: string | null, fetcher: () => Promise<T>): Promise<T> {
-		const cachedValue = this.get(key);
-		if (cachedValue !== undefined) {
-			// Cache HIT
-			return cachedValue;
-		}
-
-		// Cache MISS
-		const value = await fetcher();
-		this.set(key, value);
-		return value;
-	}
-}