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Re: Does this ctor make sense?

by Athanasius (Chancellor)
on Jan 15, 2013 at 12:32 UTC ( #1013382=note: print w/replies, xml ) Need Help??


in reply to Does this ctor make sense?

From bless:

bless REF,CLASSNAME
...
If CLASSNAME is omitted, the current package is used.

This works OK where there is no inheritance. But (from the same doc):

Always use the two-argument version if a derived class might inherit the function doing the blessing.

Otherwise, the derived class object will be blessed into the wrong class.

Update: If you have access to the Camel Book, see especially the section “Object Construction” in Chapter 12, pages 424–9 (4th Edition, 2012).

Hope that helps,

Athanasius <°(((><contra mundum Iustus alius egestas vitae, eros Piratica,

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[shmem]: all else leads to trouble, even if the third argument depends on the existence of the second. That may become brittle.
[Discipulus]: but if have case like subname(15,undef,3 ) maybe bettere named parameters
[Lady_Aleena]: I don't want to have to do: alpha_menu($hash, undef, $type);
[Lady_Aleena]: Or what Discipulus said.
[shmem]: Lady_Aleena: geany supports ctags.
[Discipulus]: a good compromise can be my ($need, $opts_ref) = @_ a scalar and an hash reference
[Discipulus]: see you monks!
[Lady_Aleena]: shmem, let me get this sub rewritten, then I will look into how to use ctags in geany. Deal? 8)
[shmem]: Discipulus: yeah, that might eventually prepare the path for OO ;-)
[Lady_Aleena]: See you, Discipulus.

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