---
source: hydroflow/tests/surface_difference.rs
expression: "df.meta_graph().unwrap().to_mermaid(&Default::default())"
---
%%{init:{'theme':'base','themeVariables':{'clusterBkg':'#ddd','clusterBorder':'#888'}}}%%
flowchart TD
classDef pullClass fill:#8af,stroke:#000,text-align:left,white-space:pre
classDef pushClass fill:#ff8,stroke:#000,text-align:left,white-space:pre
classDef otherClass fill:#fdc,stroke:#000,text-align:left,white-space:pre
linkStyle default stroke:#aaa
1v1[\"(1v1) <code>difference()</code>"/]:::pullClass
2v1[/"(2v1) <code>for_each(|x| println!(&quot;diff: {:?}&quot;, x))</code>"\]:::pushClass
3v1[\"(3v1) <code>source_stream(pos_recv)</code>"/]:::pullClass
4v1[\"(4v1) <code>source_stream(neg_recv)</code>"/]:::pullClass
5v1[/"(5v1) <code>tee()</code>"\]:::pushClass
6v1[/"(6v1) <code>for_each(|x| println!(&quot;neg: {:?}&quot;, x))</code>"\]:::pushClass
7v1["(7v1) <code>handoff</code>"]:::otherClass
8v1["(8v1) <code>handoff</code>"]:::otherClass
1v1-->2v1
3v1-->8v1
4v1-->5v1
5v1-->7v1
5v1-->6v1
7v1--x|neg|1v1; linkStyle 5 stroke:red
8v1-->|pos|1v1
subgraph sg_1v1 ["sg_1v1 stratum 1"]
    1v1
    2v1
    subgraph sg_1v1_var_diff ["var <tt>diff</tt>"]
        1v1
        2v1
    end
end
subgraph sg_2v1 ["sg_2v1 stratum 0"]
    4v1
    5v1
    6v1
    subgraph sg_2v1_var_negs ["var <tt>negs</tt>"]
        4v1
        5v1
    end
end
subgraph sg_3v1 ["sg_3v1 stratum 0"]
    3v1
    subgraph sg_3v1_var_poss ["var <tt>poss</tt>"]
        3v1
    end
end