Try playing around in the debugger e.g. :

+11:32% perl -de0

Loading DB routines from perl5db.pl version 1.32
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

main::(-e:1):    0
  DB<1> $Foo::bar = 1

  DB<2> *Foo::fun = sub { 42 }

  DB<3> p $Foo::bar
1
  DB<4> p Foo::fun()
42
  DB<5> x \ %Foo::
0  HASH(0x2757b98)
   'bar' => *Foo::bar
   'fun' => *Foo::fun
  DB<6> $p = 'Foo'

  DB<7> x \ %{"${p}::"}
0  HASH(0x2757b98)
   'bar' => *Foo::bar
   'fun' => *Foo::fun
  DB<8> q
+11:33%
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