class PseudoStash
Stash type for pseudo-packages
class PseudoStash is Map { }
PseudoStash is the stash type (hanging off .WHO) that backs
various pseudo-packages. So, when you do MY:: or CALLER::, that
gives back a PseudoStash. In most cases, Package:: gives
back a Stash. Neither of these are objects the user is expected to
create by themselves, but in case you have one, you can just use it like a
hash.
my $a = 42;
my $b = q/$a/;
say MY::{$b};
# OUTPUT: «42»
This shows how you can use a PseudoStash to look up variables, by name,
at runtime.