I tend to use the x debugger command, which in some cases makes it more obvious: 
  DB<2> x $child
0  Node=HASH(0x1c58f28)
   'parent' => Node=HASH(0x1d9b770)
      'parent' => undef
  DB<3> x $parent
0  Node=HASH(0x1d9b770)
   'parent' => undef

[download]
You can see by the hash addresses that $parent and $child{'parent'} point to the same hash. This is not immediately obvious with Data::Dumper.

-QM
--
Quantum Mechanics: The dreams stuff is made of

In reply to Re^3: objects are references, right? by QM
in thread objects are references, right? by rvosa

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