|------------|        
       | inputFile  |        
       +------|-----+        
              |              
              |              
       |------|-----|        
       |  d2parser  |        
       +------|-----+        
              |              
              |              
              |              
         |----|----|         
         |  d2ast  |         
         +----|----+         
              |              
              |              
      |-------|------|       
      |  d2compiler  |       
      +-------|------+       
              |              
              |              
              |              
        |-----|------|       
        |  d2graph   |       
        +-----|------+       
              |              
              |              
|-------------|-------------|
|  d2layouts/d2dagrelayout  |
+-------------|-------------+
              |              
              |              
      +-------|------+       
      |              |       
      |  d2exporter  |       
      +-------|------+       
              |              
              |              
        |-----|------|       
        |  d2target  |       
        +------------+