#  Copyright (c) 1997-2021
#  Ewgenij Gawrilow, Michael Joswig, and the polymake team
#  Technische Universität Berlin, Germany
#  https://polymake.org
#
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License as published by the
#  Free Software Foundation; either version 2, or (at your option) any
#  later version: http://www.gnu.org/licenses/gpl.txt.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#-------------------------------------------------------------------------------

# explicitly qualify derived subobject types
# currently, only group action subtypes are affected

upgrade 3.4.1 group::Group {
   my ($obj) = @_;
   my $changed = false;
   while (my ($prop_name, $value) = each %$obj) {
      if ($prop_name =~ /ACTION$/) {
         foreach my $subobj (is_array($value) ? @$value : $value) {
            if (exists $subobj->{_type}) {
               $changed |= $subobj->{_type} =~ s/^(?=\w+(?:$|<))/group::/;
            }
         }
      }
   }
   $changed
}

# Local Variables:
# mode: perl
# cperl-indent-level: 3
# indent-tabs-mode:nil
# End:
