How can I use 'return' in closure?

[tester1101]

I want to use return in clousre like this.

[case 1]

EventListener.add(EVENT_PLAYER_UNIT_DEATH) -> 
		boolean array bl

		if not bl[0]
			return
		print("bl[0] is true")

		if not bl[1]
			return
		print("bl[1] is true")

		if not bl[2]
			return
		print("bl[2] is true")

		if not bl[3]
			return
		print("bl[3] is true")

This emits error in vscode.

But of cousre,
[case 2]

	EventListener.add(EVENT_PLAYER_UNIT_DEATH) -> 
		boolean array bl

		if bl[0]
			print("bl[0] is true")
			if bl[1]
				print("bl[1] is true")
				if bl[2]
					print("bl[2] is true")
					if bl[3]
						print("bl[3] is true")
		

I can write [case 1] like this, but this looks so nested.

If using return statement in closure is not allowed in wurstscript, is there other way to escape code?

[Frotty]

You can't use return right now.
Escaping via ifs should usually suffice. The example seems very artificial, why would you check a boolean array?
I think in general you should try to avoid doing big if-conditionals and instead use multiple closures in a reactive style.
Add the code to be executed in the ifs in single closures, then add/remove them from a list dynamically. When the event happens simply execute all closures in the list (or only the first if execution shall stop after 1).