Now guess what! I managed to make the damned thing work in Pugs! Here is the slightly modified version that compiles and runs with current Pugs: 
use v6;

sub my_while(Code $expr, Code $whileblock) {
  while ($expr()) { $whileblock() };
}

my $i = 0;
my_while {$i < 10}, {
  say "i: $i";
  my $j = 0;
  my_while {$j < 10}, {
    say "j: $j";
    $j++;
  };
  $i++;
};

[download]
What really surprized me was the fact that Pugs appears to do the right thing on closing closures, which I did not think should work right now. Also, do not really expect Pugs to verify whether my_while is called with actual blocks or not, because it does not work. Moreover, it is astonishingly slow. But I keep on loving it...:-)

rg0now

In reply to Re^3: Perl 6 and Ruby on Rails by rg0now
in thread Perl 6 and Ruby on Rails by mattr

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