first commit

xterminal/source/emitter/interface.ts

@@ -0,0 +1,9 @@
+import type { IEventName, IEventListener } from "../types";
+
+/**
+ * State of the Event Emitter
+ */
+export type IEmitterState = {
+    store: Map<IEventName, Set<IEventListener>>;
+    stack: IEventName[];
+};