Bad address index.

[rr13k]

Godot version

4.1

System information

macOS12.1

Issue description

func test():
if self is Player:
pass

Impossible code that prevents it from running

Steps to reproduce

run main.tscn

Minimal reproduction project

bug.zip

[rr13k]

supplement The following modifications still have the same error

if is_instance_of(self,Player):

[rr13k]

error image:

[bitsawer]

I can repro this in Godot 4.1.1, but looks like this has already been fixed in current 4.2 master (0511f9d) and 4.2 dev 3 release. Closing, but feel free to comment or reopen the issue if the problem is not solved for some reason.

[dalexeev]

I reproduced in 4.1.1:

[bitsawer]

I did mention that I can also reproduce this in 4.1.1, but this has been fixed at some point since (fixed at least in 4.2 dev 3 relese) so I don't think this is a valid issue anymore as we usually close issues when they are fixed in master. Although it could be useful to find out what PR fixed this for future reference, even if it did so by accident.

edit: Possible duplicate of #74253?

[dalexeev]

Possible duplicate of #74253?

Yes, the reason is the same, circular dependencies/inheritance:

flowchart BT
    main.gd-- requires -->char.tscn
    char.tscn-- requires -->char.gd
    char.gd-- extends -->entry.gd
    entry.gd-- requires -->player.gd
    player.gd-- extends -->char.gd

Loading

I did mention that I can also reproduce this in 4.1.1

Sorry, I misread.

but this has been fixed at some point since (fixed at least in 4.2 dev 3 relese) so I don't think this is a valid issue anymore

Although it could be useful to find out what PR fixed this for future reference

I don't think this has been properly fixed, it's a complex issue. However, we can close this as a duplicate of #74253.