From @masak

<mberends> </lurk> moritz_​: is it a known gotcha that named parameters
cause errors if they are typed and then omitted? S06 is silent on
typing.
<mberends> rakudo​: class A { method m(​:$p) { say "param $p"; }; };
A.new.m("HAI");
<p6eval> rakudo c10807​: OUTPUT«param HAI␤»
<mberends> rakudo​: class A { method m(Str :$p) { say "param $p"; }; };
A.new.m("HAI");
<p6eval> rakudo c10807​: OUTPUT«param HAI␤»
<mberends> rakudo​: class A { method m(Str :$p) { say "param $p"; }; };
A.new.m();
<p6eval> rakudo c10807​: OUTPUT«Parameter type check failed for $p in
call to m [...]
<mberends> rakudo​: class A { method m(​:$p) { say "param $p"; }; }; A.new.m();
<p6eval> rakudo c10807​: OUTPUT«Use of uninitialized value␤param ␤»
<mberends> <lurk>
  [12​:31]
<moritz_> mberends​: not known I think... care to open a ticket?
* masak submits

From @mberends

Improving the signal-to-noise ratio of the above, using perl6 -e'...'​:

class A {method m(Str :$p){my $p2=$p // "";say "m$p2"}}; A.new.m("HAI")
class A {method m(Str :$p){my $p2=$p // "";say "m$p2"}}; A.new.m()

The first line works.
The second dies saying 'Parameter type check failed for $p in call to m'

Remove the Str type and they both work​:

class A {method m(​:$p){my $p2=$p // "";say "m$p2"}}; A.new.m("HAI")
class A {method m(​:$p){my $p2=$p // "";say "m$p2"}}; A.new.m()

From @jnthn

On Fri Feb 06 23​:12​:31 2009, mberends wrote​:

Improving the signal-to-noise ratio of the above, using perl6 -e'...'​:

class A {method m(Str :$p){my $p2=$p // "";say "m$p2"}}; A.new.m("HAI")
class A {method m(Str :$p){my $p2=$p // "";say "m$p2"}}; A.new.m()

The first line works.
The second dies saying 'Parameter type check failed for $p in call to m'

Now as of git 50a61ae they both work, as they should.

Thanks,

Jonathan

The RT System itself - Status changed from 'new' to 'open'

@jnthn - Status changed from 'open' to 'resolved'