Re: RFC 76 (v1) Builtin: reduce

[Damian Conway]

   > > Currying placeholders are scalars
   > 
   > Is that a general truth?

Yes. It proceeds from the fact that $_[0], $_[1], ect are scalars.

   
   > It wasn't obvious from RFC 23... If you
   > rev it, perhaps you could make that clearer.

Will do.

   
   > Looking back, the defining example did give a list of (;$$$$) in
   > the prototype. I suppose it would be pretty complex to infer the
   > type from the expression, unless the placeholder syntax were
   > extended to ^$_, ^@_, ^%_, and similar for named and positional
   > placeholders... Seems like if we get matrix ops (via other RFCs)
   > that we might want to curry them?

That's why I think we ought to strict with array refs for multidimensional
data.

   
   > Here I was thinking a placeholder was a whatzitz whatzitz; of
   > unknown cardinality. Is it, or not?

Not. It's always a slot for a scalar.

Damian