So, it seems that my wishlist #1 is shared by many monks. With help from clkao, I've just implemented it. To wit:
in reply to Your Perl 6 wishlist?
If you want to play along, build the Pugs from trunk, and run Makefile.PL with the PUGS_EMBED environment variable containing "perl5". There's many rough edges, but they will be fixed in short order. Tests and suggestions welcome!
my $cxt = Digest.SHA1;
# This prints: 66db83c4c3953949a30563141f08a848c4202f7f