##
sub spawn
{
my $this=shift or die;
my $class=ref($this) || $this;
my $self = bless {},$class;
$main::mold=$self;
$self->init()
return($self);
}
####
$mold=Mold->spawn;
$mold->init();
####
$self->{parent}=$self || die;
$self->{mold}=$self || die;