Method add_node

core/src/graph/workflow_graph.rs:159–186

Add a node to the graph

(&mut self, node: WorkflowNode)

    /// Add a node to the graph
    pub fn add_node(&mut self, node: WorkflowNode) -> GraphBitResult<()> {
        let node_id = node.id.clone();

        if self.nodes.contains_key(&node_id) {
            let incoming_name = node.name.clone();
            let existing_name = self
                .nodes
                .get(&node_id)
                .map(|n| n.name.clone())
                .unwrap_or_else(|| "<unknown>".to_string());
            return Err(GraphBitError::graph(format!(
                "Node already exists: id={node_id} (existing name='{existing_name}', incoming name='{incoming_name}'). Hint: create a fresh Node instance; do not add the same Node object twice."
            )));
        }

        let graph_index = self.graph.add_node(node.clone());
        self.node_map.insert(node_id.clone(), graph_index);
        self.index_to_id.insert(graph_index, node_id.clone());
        self.name_to_id
            .entry(node.name.clone())
            .or_insert_with(|| node_id.clone());
        self.nodes.insert(node_id, node);

        // Invalidate caches since graph structure changed
        self.invalidate_caches();

        Ok(())
    }

    /// Add an edge between two nodes
    pub fn add_edge(&mut self, from: NodeId, to: NodeId, edge: WorkflowEdge) -> GraphBitResult<()> {