Method has_vertex

atomic-core/src/pristine/txn/write/graph.rs:215–220

(&self, node: GraphNode<NodeId>)

    }

    fn has_vertex(&self, node: GraphNode<NodeId>) -> PristineResult<bool> {
        let table = self.txn.open_multimap_table(GRAPH)?;
        let key = encode_vertex(node.change.get(), node.start.get(), node.end.get());
        let has = table.get(&key)?.next().is_some();
        Ok(has)
    }

    fn get_node_type(&self, node_id: NodeId) -> PristineResult<Option<u8>> {
        let table = self.txn.open_table(NODE_TYPES)?;