Here's a little routine I whipped up that should handle the @ISA path for a class. Mind, it still won't tell you about tricky additions to the method space such as auto-loaded methods that aren't pre-declared with "use vars", for example. In other words, you can fool it pretty easily but if you're using the code in a fairly plain environment, it should at least be helpful.

sub find_methods
{
    my $pack = shift;
    my $tbl  = shift || {};

    no strict 'refs';

    my ($key, $val);
    while (($key, $val) = each %{"${pack}::"})
    {
        $tbl->{$key}++ if defined *{$val}{CODE};
    }
    if (@{"${pack}::ISA"})
    {
        find_methods($_, $tbl) for (@{"${pack}::ISA"});
    }

    sort keys %$tbl;
}
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It assumes that the code behind the specified class has already been loaded. You call it as:

@methods = find_methods $classname;

You won't get duplicate names in the cases where a sub-class overrides a method previously defined in a parent. Recursion is your friend.

--rjray