Is there a problem in perl 5.12.2 using splice on @ISA?

Question

The following is a debug session on Perl 5.12. Does this make any sense? Does UNIVERSAL cache a version of the @ISA variable, which if forever uses the

Answer 1

Yes, there is a cache. But if you can modify @ISA without invalidating that cache, I would consider it a bug in perl.

Does your problem disappear if you add the line @ISA = @ISA; after your splice line?