Re^6: Blessing with unknown classnames

@Error::ISA = qw//; # "base class" for errors
@BadInput::ISA = qw/Error/;
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Neat! I guess this is some kind of "class autovivification" you are doing?

e.g. Throwable

I prefer to keep it simple and mooless

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Re^7: Blessing with unknown classnames by haukex (Archbishop) on Apr 02, 2021 at 11:26 UTC
I guess this is some kind of "class autovivification" you are doing? Like I said, Perl's object system is very simple: `->isa('Error')` (inherited from UNIVERSAL) is just looking up the inheritance tree, and the inheritance tree is defined by each package's @ISA, which is just an array of strings, so that's all I needed to define to make the "classes" "exist". perlmod is a good read on this topic.	[reply] [d/l]

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Re^7: Blessing with unknown classnames
by haukex (Archbishop) on Apr 02, 2021 at 11:26 UTC

I guess this is some kind of "class autovivification" you are doing?

Like I said, Perl's object system is very simple: ->isa('Error') (inherited from UNIVERSAL) is just looking up the inheritance tree, and the inheritance tree is defined by each package's @ISA, which is just an array of strings, so that's all I needed to define to make the "classes" "exist". perlmod is a good read on this topic.

[reply]
[d/l]