I think your guess may be right. I changed it to have:
my ($do_search1, $do_search2);
$do_search2 = sub {
my ($node) = @_;
$sub->($node);
$explored->{$node->{_id}}++;
foreach my $link (@{$node->{_outlinks}}) {
die "too deep" unless ($explored->{$link->{_id}});
}
};
$do_search1 = sub {
my ($node) = @_;
$sub->($node);
$explored->{$node->{_id}}++;
foreach my $link (@{$node->{_outlinks}}) {
$do_search2->($link->{_to}) unless ($explored->{$link->{_id}})
+;
}
};
$do_search = sub {
my ($node) = @_;
$sub->($node);
$explored->{$node->{_id}}++;
foreach my $link (@{$node->{_outlinks}}) {
$do_search1->($link->{_to}) unless ($explored->{$link->{_id}})
+;
}
};
so no recursive calls were done, and got:
BUILDING GRAPH
Neighbors
Node=HASH(0xa0920e8) ID 1
Node=HASH(0xa092160) ID 3
Node=HASH(0xa092124) ID 2
DESTROYING Network=HASH(0xa0420ac)
DESTROYING Link=HASH(0xa0921b4) 2
DESTROYING Link=HASH(0xa092184) 1
DESTROYING Link=HASH(0xa0921e4) 3
DESTROYING Link=HASH(0xa092214) 4
DESTROYING Node=HASH(0xa092160) 3
DESTROYING Node=HASH(0xa0920e8) 1
DESTROYING Node=HASH(0xa092124) 2
SHOULD BE THE LAST THING PRINTED, HOWEVER ...
Can you simplify it so you just manually bless a few references into "main" and
perlbug it?