Source-code Visualizer

[emil14]

Example DOT for 99_bottles

digraph G {
    // Graph styling
    rankdir = LR;
    node [shape = box; style = "rounded,filled"; fillcolor = lightblue;];
    edge [color = "#666666";];
    
    // Components as subgraphs
    subgraph cluster_main {
        label = "Main";
        style = filled;
        color = lightgrey;
        node [style = "rounded,filled"; fillcolor = white;];
        
        main_start [label = "start";];
        main_print [label = "print\nFor<int>";];
        main_wait [label = "Wait";];
        main_stop [label = "stop";];
        
        main_start -> "99..-1" -> main_print -> main_wait -> main_stop;
    }
    
    subgraph cluster_next2lines {
        label = "Next2Lines";
        style = filled;
        color = lightgrey;
        node [style = "rounded,filled"; fillcolor = white;];
        
        n2l_data [label = "data";];
        n2l_first [label = "first\nTap<int>";];
        n2l_dec [label = "dec\nDec<int>";];
        n2l_second [label = "second";];
        n2l_sig [label = "sig";];
        
        n2l_data -> n2l_first -> n2l_dec -> n2l_second -> n2l_sig;
    }
    
    subgraph cluster_firstline {
        label = "FirstLine";
        style = filled;
        color = lightgrey;
        node [style = "rounded,filled"; fillcolor = white;];
        
        fl_data [label = "data";];
        fl_switch [label = "switch";shape = diamond;];
        fl_p1 [label = "p1\nfmt.Println";];
        fl_p2 [label = "p2\nfmt.Println";];
        fl_p3 [label = "p3\nfmt.Printf";];
        fl_panic [label = "panic\nPanic";fillcolor = "#ffcccc";];
        fl_sig [label = "sig";];
        
        // String literals
        fl_str0 [label = "'No more bottles of beer on the wall,\nno more bottles of beer.'";shape = note;fillcolor = "#e6ffe6";];
        fl_str1 [label = "'1 bottle of beer on the wall,\n1 bottle of beer.'";shape = note;fillcolor = "#e6ffe6";];
        fl_strn [label = "'$0 bottles of beer on the wall,\n$0 bottles of beer.\n'";shape = note;fillcolor = "#e6ffe6";];
        
        fl_data -> fl_switch;
        fl_switch -> fl_str0 [label = "0";];
        fl_switch -> fl_str1 [label = "1";];
        fl_switch -> fl_strn [label = "default";];
        fl_str0 -> fl_p1;
        fl_str1 -> fl_p2;
        fl_strn -> fl_p3;
        fl_p3:e -> fl_panic [label = "err";];
        {fl_p1 fl_p2 fl_p3} -> fl_sig;
    }
    
    subgraph cluster_secondline {
        label = "SecondLine";
        style = filled;
        color = lightgrey;
        node [style = "rounded,filled"; fillcolor = white;];
        
        sl_data [label = "data";];
        sl_switch [label = "switch";shape = diamond;];
        sl_p1 [label = "p1\nfmt.Println";];
        sl_p2 [label = "p2\nfmt.Println";];
        sl_p3 [label = "p3\nfmt.Println";];
        sl_p4 [label = "p4\nfmt.Printf";];
        sl_panic [label = "panic\nPanic";fillcolor = "#ffcccc";];
        sl_sig [label = "sig";];
        
        // String literals
        sl_strm1 [label = "'Go to the store and buy some more,\n99 bottles of beer on the wall.'";shape = note;fillcolor = "#e6ffe6";];
        sl_str0 [label = "'Take one down and pass it around,\nno more bottles of beer on the wall.\n'";shape = note;fillcolor = "#e6ffe6";];
        sl_str1 [label = "'Take one down and pass it around,\n1 bottle of beer on the wall.\n'";shape = note;fillcolor = "#e6ffe6";];
        sl_strn [label = "'Take one down and pass it around,\n$0 bottles of beer on the wall.\n\n'";shape = note;fillcolor = "#e6ffe6";];
        
        sl_data -> sl_switch;
        sl_switch -> sl_strm1 [label = "-1";];
        sl_switch -> sl_str0 [label = "0";];
        sl_switch -> sl_str1 [label = "1";];
        sl_switch -> sl_strn [label = "default";];
        sl_strm1 -> sl_p1;
        sl_str0 -> sl_p2;
        sl_str1 -> sl_p3;
        sl_strn -> sl_p4;
        sl_p4:e -> sl_panic [label = "err";];
        {sl_p1 sl_p2 sl_p3 sl_p4} -> sl_sig;
    }
    
    // Inter-component connections
    edge [color = "#0066cc"; style = dashed;];
    main_print -> n2l_data;
    n2l_first -> fl_data;
    n2l_second -> sl_data;
}