[perl #60780] Trouble when iteration variables don't add up

[Will Coleda via RT]

On Mon Sep 19 20:57:19 2011, coke wrote:
> On Mon Apr 05 14:21:29 2010, coke wrote:
> > On Sun Jan 11 00:21:58 2009, pmichaud wrote:
> > > On Mon Nov 24 09:12:36 2008, masak wrote:
> > > > <masak> rakudo: for 1..5 -> $a, $b { say $a, $b }
> > > > <p6eval> rakudo 33137: OUTPUT[12␤34␤StopIteration␤current
> instr.:
> > > > '_block11' pc 78 (EVAL_15:29)␤]
> > > >
> > > > I haven't searched the specs or the tests for what should
> happen,
> > but
> > > > I'm pretty sure this shouldn't throw an exception.
> > >
> > > Stalling this ticket until there's a description of what should
> happen
> > > (either in S04 or S07) and tests to match.
> > >
> > > Thanks!
> > >
> > > Pm
> > >
> > >
> >
> > 17:17 < CokeBot9000> TimToady:
> >
> http://rt.perl.org/rt3/Ticket/Display.html?id=60780
> > - I
> >                      would imagine that on the last loop through, a
> > would get
> >                      5, and b would get whatever undef is these
> days.
> > 17:18 <@TimToady> no, it just fails to bind, unless you declare the
> > second
> >                   parameter as optional
> > 17:19 < CokeBot9000> (fails to bind) - just on the last iteration,
> yes?
> > 17:20 <@TimToady> yes, just the last iteration
> >
> 
> 23:56 < [Coke]> rakudo: for 1..5 -> $a, $b { say $a, $b }
> 23:56 <+p6eval> rakudo cbdd9b: OUTPUT«12␤34␤Not enough positional
> parameters passed;
>                 got 1 but expected 2␤  in block <anon> at
> /tmp/DxYdxC7jfN:1␤  in
>                 method reify at src/gen/CORE.setting:3690␤  in method
> reify at
>                 src/gen/CORE.setting:3595␤  in method reify at
>                 src/gen/CORE.setting:3595␤  in method gimme…
> 
> 
> 23:56 < [Coke]> rakudo: for 1..5 -> $a, $b? { say $a, $b }
> 23:56 <+p6eval> rakudo cbdd9b: OUTPUT«12␤34␤5Mu()␤»
> 
> good enough for tests?

We've regressed:

09:13 < [Coke]> rakudo: for 1..5 -> $a, $b { say $a, $b }
09:14 <+p6eval> rakudo 142c41: OUTPUT«12␤34␤Not enough positional 
parameters
                passed; got 1 but expected 2␤  in block <anon> at
                /tmp/BU0IJx3rtJ:1␤  in method reify at
                src/gen/CORE.setting:4045␤  in method reify at
                src/gen/CORE.setting:3952␤  in method reify at
                src/gen/CORE.setting:3952␤  in method gimme…


-- 
Will "Coke" Coleda