[perl #72070] grammar more than a namespace?

[Mark E. Shoulson]

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Here are two files; one works (shows a match), and one errors with

get_attr_str() not implemented in class 'Integer'
in Main (file src/gen_setting.pm, line 324)


==========================================
# This one works:

use v6;

grammar Simpl {
   token xxx { 'x' }
   token c { 'c' }
   token end { '!' }

   token xc { <xxx>*<c> }
   token xend { <xxx>*<end> }
}

my $sample="cx!";
my $answer=($sample ~~ /<Simpl::xend>/);
say $answer.perl;

============================================
# This one does not:

use v6;

# grammar Simpl {
   token xxx { 'x' }
   token c { 'c' }
   token end { '!' }

   token xc { <xxx>*<c> }
   token xend { <xxx>*<end> }
# }

my $sample="cx!";
my $answer=($sample ~~ /<xend>/);
say $answer.perl;

=============================================

Note that the only difference between them is whether or not I'm using 
the grammar Simpl as a namespace for the regexps or leaving them at top 
level.  If my understanding of grammars is correct, using a grammar in 
this way should be optional; I ought to be able to use the tokens 
directly.  Any ideas?

Details:

Rakudo git commit 3867ffd5b624437a565fa6a30d89f6fc18866797
Parrot revision 43076
Fedora 11 Linux, i386

~mark