Method remove

perro_source/runtime_project/perro_runtime/src/cns/node_arena.rs:223–239

Remove a node and invalidate old ids for that slot. Successful removal bumps the slot generation and pushes the slot onto the free list for later reuse.

(&mut self, id: NodeID)

            .expect("tracked node slot stays live while borrowed")
    }
}

impl DerefMut for NodeMut<'_> {
    fn deref_mut(&mut self) -> &mut Self::Target {
        self.arena.nodes[self.index]
            .as_mut()
            .expect("tracked node slot stays live while borrowed")
    }
}

impl Drop for NodeMut<'_> {
    fn drop(&mut self) {
        let (new_name_hash, name_empty, new_tags_hash, new_parent, new_node_type, children_changed) = {
            let node = self.arena.nodes[self.index]
                .as_ref()
                .expect("tracked node slot stays live while borrowed");
            (
                string_to_u64(node.get_name()),
                node.get_name().is_empty(),
                tags_hash(&node.tags),