IlyaM has said how to do it right, so I figured I will say how to do it wrong. :)
This is bad, ugly, and deprecated*, but it works:
%#->{foo}
If you want to stay legal you can do it semi-direct:
(\%#)->{foo}
While on the theme of references:
no strict 'refs';
'#'->{foo}
which will work since
%# can't be private.
But don't do any of the above.
ihb
* It's labeled as a "known problem" in perl561delta, but in perl580delta it's called deprecated.
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