---
source: hydroflow/tests/surface_cross_singleton.rs
expression: "df.meta_graph().unwrap().to_dot(& Default :: default())"
---
digraph {
    node [fontname="Monaco,Menlo,Consolas,"Droid Sans Mono",Inconsolata,"Courier New",monospace", style=filled];
    edge [fontname="Monaco,Menlo,Consolas,"Droid Sans Mono",Inconsolata,"Courier New",monospace"];
    n1v1 [label="(n1v1) cross_singleton()", shape=invhouse, fillcolor="#88aaff"]
    n2v1 [label="(n2v1) source_iter([1, 2, 3])", shape=invhouse, fillcolor="#88aaff"]
    n3v1 [label="(n3v1) persist::<'static>()", shape=invhouse, fillcolor="#88aaff"]
    n4v1 [label="(n4v1) source_stream(single_rx)", shape=invhouse, fillcolor="#88aaff"]
    n5v1 [label="(n5v1) for_each(|x| egress_tx.send(x).unwrap())", shape=house, fillcolor="#ffff88"]
    n6v1 [label="(n6v1) handoff", shape=parallelogram, fillcolor="#ddddff"]
    n3v1 -> n1v1 [label="input"]
    n2v1 -> n3v1
    n4v1 -> n6v1
    n1v1 -> n5v1
    n6v1 -> n1v1 [label="single", color=red]
    subgraph "cluster n1v1" {
        fillcolor="#dddddd"
        style=filled
        label = "sg_1v1\nstratum 0"
        n4v1
    }
    subgraph "cluster n2v1" {
        fillcolor="#dddddd"
        style=filled
        label = "sg_2v1\nstratum 1"
        n2v1
        n3v1
        n1v1
        n5v1
        subgraph "cluster_sg_2v1_var_join" {
            label="var join"
            n1v1
        }
    }
}