clean: remove obsolete repair debug code + unused core utilities

src/utils/core/EventEmitter.ts

@@ -1,32 +1,22 @@
 type Listener<TPayload> = (payload: TPayload) => void;
 
-type ListenerMap<TEvents extends Record<string, unknown>> = {
+type ListenerMap<TEvents extends object> = {
   [TKey in keyof TEvents]?: Set<Listener<TEvents[TKey]>>;
 };
 
-function getListeners<
-  TEvents extends Record<string, unknown>,
-  TKey extends keyof TEvents,
->(
-  map: ListenerMap<TEvents>,
-  key: TKey,
-): Set<Listener<TEvents[TKey]>> | undefined {
-  return map[key] as Set<Listener<TEvents[TKey]>> | undefined;
-}
-
-export class EventEmitter<TEvents extends Record<string, unknown>> {
+export class EventEmitter<TEvents extends object> {
   private readonly listeners: ListenerMap<TEvents> = {};
 
   on<TKey extends keyof TEvents>(
     event: TKey,
     listener: Listener<TEvents[TKey]>,
   ): () => void {
-    const existing = getListeners(this.listeners, event);
+    const existing = this.listeners[event];
 
     if (existing) {
       existing.add(listener);
     } else {
-      this.listeners[event] = new Set([listener]) as ListenerMap<TEvents>[TKey];
+      this.listeners[event] = new Set([listener]);
     }
 
     return () => {
@@ -38,7 +28,7 @@ export class EventEmitter<TEvents extends Record<string, unknown>> {
     event: TKey,
     listener: Listener<TEvents[TKey]>,
   ): void {
-    const currentListeners = getListeners(this.listeners, event);
+    const currentListeners = this.listeners[event];
 
     if (!currentListeners) {
       return;
@@ -52,7 +42,7 @@ export class EventEmitter<TEvents extends Record<string, unknown>> {
   }
 
   emit<TKey extends keyof TEvents>(event: TKey, payload: TEvents[TKey]): void {
-    const currentListeners = getListeners(this.listeners, event);
+    const currentListeners = this.listeners[event];
 
     if (!currentListeners) {
       return;