Perl 5.6 does not have that feature (perlop 5.6). That explains why hackers use underscores and merlyn did not mention it in his book.

Perl doesn't care about $code_ref having to be a reference to a method. It's enough to be just a sub ref. The sub gets an $obj as first argument, that's all.

Update: broken link fixed

In reply to Re^3: OOP: ->Coderef for calling Private Methods by ccn
in thread OOP: Obj->Coderef for calling Private Methods by LanX

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