# New Ticket Created by Rob Hoelz
# Please include the string: [perl #127832]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=127832 >
See the attached file. If you store a parameterized role in a variable and
attempt to parameterize it via postcircumfix:sym<[ ]>, you get a cryptic error
message:
> No appropriate parametric role variant available for 'R'
> in any specialize at gen/moar/m-Metamodel.nqp line 2609
> in any compose at gen/moar/m-Metamodel.nqp line 2988
> in any make_pun at gen/moar/m-Metamodel.nqp line 1692
> in any find_method at gen/moar/m-Metamodel.nqp line 1720
> in block <unit> at test.pl line 11
use v6;
role R[$value] {}
class C {}
my $obj = C.new;
my $r = R;
$obj but $r[1];
=output
No appropriate parametric role variant available for 'R'
in any specialize at gen/moar/m-Metamodel.nqp line 2609
in any compose at gen/moar/m-Metamodel.nqp line 2988
in any make_pun at gen/moar/m-Metamodel.nqp line 1692
in any find_method at gen/moar/m-Metamodel.nqp line 1720
in block <unit> at test.pl line 11
