Update: ignore this, tobyink is right, I didn't pay enough attention to the question

This cumbersome check is not really required. inner is no-op if there's no augment: 

use 5.010;
use strict;
use warnings;

{
    package C1;
    use Moose;
    sub test { return "<C1>".(inner()//'')."</C1>"; }
}

{
    package C2;
    use Moose;
    extends 'C1';
}

my $c2 = C2->new;
say $c2->test;
__END__
<C1></C1>

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In reply to Re^2: Moose - two augmented methods in one class by zwon
in thread Moose - two augmented methods in one class by roman

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