Re: [FWP] alien method calls

[Nathan Torkington <gnat@frii.com>]

John Porter writes:
> I didn't realize until today that method names are only looked up
> in the objects's inheritance tree if unqualified.  If qualified
> (and it goes without saying that Fully Qualified is the only kind),
> the fully named sub is called, regardless of the class of the object.
> Somewhat unexpected -- though not unpleasant.

Almost true.  If you say:

  Foo::moo($obj)

then you're specifying exactly which subroutine (ahem, method)
should be called.

If you say:

  $obj->Foo:moo()

then you're starting the method search in Foo::, looking for the
method moo().  Inheritance applies with the -> but not with the
mundane sub call.

If you're doing this to call an overridden method, you probably
want

  $obj->SUPER::moo()

Nat

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