Expressions that read the double slice are easy to come by; aliases are harder. This seems to work though: 
@{ my $sub; my @refs = @h{@a}; do {$sub = sub { @refs ? $sub->(@_,@{po
+p @refs}{@b}) : \@_ }}->() }

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I would love to hear how it could be simplified.
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In reply to Re: chained hash slices? by ysth
in thread chained hash slices? by pc88mxer

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