From @hoelzro

Using a lexical regex in a method fails with a strange error​:

Nominal type check failed for parameter ''; expected HasMethod but got
Cursor instead
  in regex anything at test.p6​:34
  in method INTERPOLATE at src/gen/CORE.setting​:10730
  in regex at test.p6​:36
  in method ACCEPTS at src/gen/CORE.setting​:10894
  in method ACCEPTS at src/gen/CORE.setting​:703
  in method parse at test.p6​:36
  in block at test.p6​:45

The attached file includes examples.

From @hoelzro

use v6;

sub parse(Str $input) {
  my regex anything { . }

  if $input ~~ /<anything>/ {
  }
}

class HasSub {
  sub parse(Str $input) {
  my regex anything { . }

  if $input ~~ /<anything>/ {
  }
  }

  method call-parse-sub(Str $input) {
  parse($input);
  }
}

class HasSubMethod {
  submethod parse(Str $input) {
  my regex anything { . }

  if $input ~~ /<anything>/ {
  }
  }
}

class HasMethod {
  method parse(Str $input) {
  my regex anything { . }

  if $input ~~ /<anything>/ {
  }
  }
}

my @​forms = (
  { parse('foo'); }, # no problems
  { HasSub.call-parse-sub('foo') }, # fails
  { HasSubMethod.parse('foo') }, # fails
  { HasMethod.parse('foo') }, # fails
);

for @​forms -> $form {
  try {
  $form();
  CATCH { default { .say } }
  }
}

From @FROGGS

Fixed at​: rakudo/rakudo@57a08ad
Tests​: Raku/roast@ff5bd050c0

@FROGGS - Status changed from 'new' to 'resolved'