Attributes are per-object.

If an instance attribute is to ever have any value, then it is at best: write-once.

And it is conceivable that a factory constructor could derive from different base classes to provide different constant attributes.

Constants are per-process.

Actually, Perl's constants are per-package rather than per process. And it certainly isn't inconceivable that they could be implemented to be block scoped as many of the newer pragmas are.

And as I understand it, it would be completely possible to have per-instance constants with Perl 6 using Roles. Maybe even in Perl 5 with Perl6::Roles

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Psychic Disconnect and Object Systems by BrowserUk
in thread Psychic Disconnect and Object Systems by John M. Dlugosz

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