在 Sep 4, 2006 2:11 AM 時，Gaal Yahas 寫到：
Unless I'm mistaken, this doesn't cast back to subroutine signature
land
very well:
sub f1 (Dog ($fido, $spot)) { ... }
sub f2 (Dog $ ($fido, $spot)) { ... }
sub f3 (Dog :($fido, $spot)) { ... }
Correct.
Unless Audrey's latest S03 patch pertains here as well, and Dog
distributes; in that case it would be as if the programmer had written
sub f1 ([Dog $fido, Dog $spot]) { ... }
Yes, except there's no [] there; it's two positional parameters.
as described in the preceding section, "Unpacking array
parameters". If
this is *not* the case, then f1 is not ambiguous!
TimToady++ just confirmed on IRC that it is indeed the case.
Please clarify, so I can clean up the confusing paragraph and
introduce
the optionality of the colon less jarringly.
Woot! :-)
Audrey
