http://qs1969.pair.com?node_id=954538


in reply to Re: annotation, derivation
in thread annotation, derivation

Cool, that looks very much like what I hoped for, I'll have to have a play to see if I can find a sensible way to record and expose the locations and stacktraces at which the calculations occur.

Getting the information to survive across transitions to string and back may be harder: in fact, I suspect sensible string support will generally be rather harder (eg to extract the interesting information from something like $string = join ', ', @substrings).

I wouldn't have gone for an lvalue derivation(), but I think that's more an issue of personal style.

Thanks,

Hugo

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Re^3: annotation, derivation
by tobyink (Canon) on Feb 17, 2012 at 14:16 UTC

    Object::Stash is written in such a way that, the accessors can be used as lvalues, or getter/setters:

    $quux->derivation = 'x'; $quux->derivation('x');

    ... are both equivalent.