pass hash to sub expecting named params?

[Carl Franks]

Will it be valid to pass a hash to a subroutine expecting named
params, if the hash keys match the names?

sub do_this (+$foo, +$bar) {
  # whatever
}

%arg = (
  :foo,
  :bar,
);

do_this(*%arg);

I use this technique a lot, and it would be unfortunate to miss out on
the advantages of subroutine signatures and have to 'go back' to the
perl5-ish
sub do_this (*%args) { }

Carl Franks