Thanks for the update. As viki hinted at, isn't this a bug in itself
(andthen problems aside). Why does Empty as the first arg to orelse return
a block?
say (Empty orelse "foo")
-> ;; $_ is raw { #`(Block|140421623865904) ... }
Where as
say (Any orelse "foo")
returns the correct value.
On Thu, Nov 10, 2016 at 1:51 AM Zoffix Znet via RT <
perl6-bugs-follo...@perl.org> wrote:
> On Sun, 06 Nov 2016 20:25:50 -0800, lloyd.fo...@gmail.com wrote:
> > 15:18 < llfourn_> m: say (Str andthen .uc orelse "foo") # more golfed
> > 15:18 <+camelia> rakudo-moar 1c425f: OUTPUT«-> ;; $_ is raw {
> > #`(Block|81391040) ... }»
> > 15:23 < llfourn_> m: say (Str andthen .uc orelse "foo")("wee")
> > 15:23 <+camelia> rakudo-moar 1c425f: OUTPUT«foo»
> >
> > unless I totally missed what these are meant to do a Block is not what
> > should be returned from this expression.
>
> The issue is due to `andthen` (and `notandthen`) actually returning Empty
> instead of the advertized "first undefined value" and since Empty is a
> Slip, it causes an issue with `orelse`.
>
> While the fix is trivial, it causes fallout with `with` operator and right
> now we're waiting for TimToady to chime in on how things should be done.
> IRC conversation:
> https://irclog.perlgeek.de/perl6-dev/2016-11-09#i_13539174
>
>
