"1" => \&get_ifc_name({'ifc_default' => 'test_me',}),

To fix the problem but lose arguments:

"1" => \&get_ifc_name,

I'm too tired to read all your code, but it seems to me, what you need a classic from functional programming¹:

use strict;
use Data::Dumper;
 
sub get_ifc_name {
    my %hash=@_;
    print Dumper \%hash;
  }
 
sub setdefaults {
    my ($func,@defs)=@_;
    return sub {
        $func->(@defs,@_)
    }
}
 
my $f2= setdefaults( \&get_ifc_name, one =>1);
 
$f2->(two =>2);

[download]

OUTPUT 

$VAR1 = {
          'one' => 1,
          'two' => 2
        };

[download]

Cheers Rolf

FOOTNOTES:

(1) IIRC it's called "currying".

In reply to Re: Subroutine references inside of a hash with arguments. by LanX
in thread Subroutine references inside of a hash with arguments. by shift9999

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