Method get_or_insert_node

src/analysis/pointsto/mod.rs:206–214

(&mut self, node: ConstraintNode<'tcx>)

impl<'tcx> ConstraintGraph<'tcx> {
    fn get_or_insert_node(&mut self, node: ConstraintNode<'tcx>) -> NodeIndex {
        if let Some(idx) = self.node_map.get(&node) {
            *idx
        } else {
            let idx = self.graph.add_node(node.clone());
            self.node_map.insert(node, idx);
            idx
        }
    }

    fn get_node(&self, node: &ConstraintNode<'tcx>) -> Option<NodeIndex> {
        self.node_map.get(node).copied()