I am attempting to use code attributes with Moo, however it seems that Moo doesnt load base/role classes early enough? And they attributes always seem to be invalid as MODIFY_CODE_ATTRIBUTES doesnt seem to be loaded.

For example

package Something::Base;

use Scalar::Util qw( refaddr );
use Moo::Role; # _ATTRIBUTES stuff doesnt seem to be inherited early e
+nough with Moo?
## use strict; use warnings;

{

    my %attrs; 

    sub MODIFY_CODE_ATTRIBUTES {
        my ($package, $subref, @attrs) = @_;
        $attrs{ refaddr $subref } = \@attrs;
        return;
    }

    sub FETCH_CODE_ATTRIBUTES {
        my ($package, $subref) = @_;
        my $attrs = $attrs{ refaddr $subref } or return;
        return @$attrs;
    }

}

package Something::Else;

use Moo;
with 'Something::Base';

#use base 'Something::Base'; # this works!


sub foo : Foo(bar) {
    return 1
}

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The above code will always give me 'Invalid CODE attribute' unless i 'use base/parent'. Neither extends nor with (roles) works. Wrapping the 'use Moo; with "Something::Base"' also works.

The Lexical::Attribute i can't get to work at all with inheritance. Either moo or use base/parent

Thoughts?

In reply to Moo vs Code Attributes by djzort

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