[WIP] Start implementing support for lambda parsing

src/vm/input.ts

@@ -8,6 +8,8 @@ export class Input extends BehaviorSubject<string> implements LifecycleAware {
 	private rl?: readline.Interface
 	private log: StreamLogger = log.getStreamLogger('input')
 
+	public readonly errors$: BehaviorSubject<Error> = new BehaviorSubject()
+
 	public hasPrompt(): boolean {
 		return !!this.rl
 	}