gistfile1.txt

sub make_ref_type($name, $kind) {
    my $class := nqp::newtype(NQPMu, 'NativeRef');
    my $info  := nqp::hash();
    $info<nativeref> := nqp::hash();
    $info<nativeref><type> := $kind;
    $info<nativeref><refkind> := 'lexical';
    nqp::composetype($class, $info);
    return $class;
}
my $hllconfig := nqp::hash();

$hllconfig<int_lex_ref> := make_ref_type('StubIntLexRef', int);
$hllconfig<num_lex_ref> := make_ref_type('StubNumLexRef', num);
$hllconfig<str_lex_ref> := make_ref_type('StubStrLexRef', str);

nqp::sethllconfig('nqp', $hllconfig);