Method resolve_node_ref

db4-graph/src/lib.rs:211–231

(&self, node: NodeRef)

    #[inline]
    pub fn resolve_node_ref(&self, node: NodeRef) -> Option<VID> {
        let vid = match node {
            NodeRef::Internal(vid) => Some(vid),
            NodeRef::External(GidRef::U64(gid)) => self.logical_to_physical.get_u64(gid),
            NodeRef::External(GidRef::Str(string)) => self
                .logical_to_physical
                .get_str(string)
                .or_else(|| self.logical_to_physical.get_u64(string.id())),
        }?;

        // VIDs in the resolver may not be initialised yet, need to double-check the node actually exists!
        let nodes = self.storage().nodes();
        let (page_id, pos) = nodes.resolve_pos(vid);
        let node_page = nodes.get_segment(page_id)?;

        if pos.0 < node_page.num_nodes() {
            Some(vid)
        } else {
            None
        }
    }

    #[inline]
    pub fn internal_num_nodes(&self, layer_ids: &LayerIds) -> usize {