What's a better way to validate an array ref than "if( 'ARRAY' eq ref $foo )"? Thanks!

There are caveats whichever way you do it, but currently I tend to default to just derefing it within an eval block: 

if (eval{ use strict 'refs'; @$foo; 1 }) {
  # it is, or pretends convincingly, to be an array ref
}

[download]

Caveat? Right. In the presence of ties or overloading, there may be side effects to derefing it. Pick your poison / buyer beware / etc.

print "Just another Perl ${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

In reply to Re^3: RFC: Perl meta programming by Sidhekin
in thread RFC: Perl meta programming by bennymack

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