[tpm] private method call nuances
linux at alteeve.com
Mon Jul 20 21:56:41 PDT 2009
Uri Guttman wrote:
>>>>>> "MK" == Madison Kelly <linux at alteeve.com> writes:
> MK> Can you explain, or point me somewhere to better understand, how
> MK> inheritance breaks using the '&' method? Also, I was a little
> MK> unclear... if you pass in '$self', does that restore the inheritance?
> MK> I just want to be clear so that I can best explain it in my paper.
> & doesn't break inheritance, just calling the method as a sub breaks
> it. only $obj->method or CLASS->method are proper OO calls that will use
> inheritance. (yes, i skipped indirect method calls for good reason). on
> top of the lack of inheritance, &sub calls are nasty in another way. if
> you don't pass in args to them, they call the sub with the existing
> @_ which can be a nasty surprise as you might have expected the sub to
> be called with no args. so you are doing two wrong things by calling a
> method with &method( $self ).
> the perl docs explain all of this so refer to them as usual.
Indeed, and I have been referencing them, but I wasn't able to find an
entry on the topic. Wasn't sure what to search for.
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