Not really sure if this will help in your case, but here's a little trick with coderefs that many people don't know about.

#!/usr/bin/perl

use strict;
use warnings;

{
    package Foo;

    sub new { bless {} => shift }
    sub name { return 'telcontar' }
}

my $method = sub { return shift->name };
print Foo->new->$method;
[download]

That should print 'telcontar'. In other words, you can call your coderefs as methods on your object and the first argument in @_ will be your object, as expected.

Update: that changes your code to this:

sub access {
  my ( $self, $x, $y ) = splice @_, 0, 3;
  my $method = $self->{crefs}{$x}{$y};
  return $self->$method(@_);
}
[download]

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