Re: Introducing Nimoy: A minimal experimental actor library

[evacchi]

news: featuring super-experimental support for [actor 
topologies](https://github.com/evacchi/nimoy#topologies)
    
    
    import future, nimoy, nimoy/topologies
    
    #
    # source ~> map1 ~> fanIn ~> map3 ~> broadcast ~> sink1
    #    +~~~~> map2 ~~~~~^                 +~~~~> sink2
    #
    
    let t = createTopology()
    
    let sink1Ref = t.sinkRef((x: int) => echo("sink1 = ", x))
    let sink2Ref = t.sinkRef((x: int) => echo("sink2 = ", x))
    let bref     = t.broadcastRef(sink1Ref, sink2Ref)
    let map3Ref  = t.nodeRef((x: int) => x+7,  bref)
    let fanInRef = t.nodeRef((x: int) => ( echo("fan in = ", x); x ), map3Ref)
    let map2Ref  = t.nodeRef((x: int) => x-1, fanInRef)
    let map1Ref  = t.nodeRef((x: int) => x*2, fanInRef)
    
    # send input
    for i in 0..10:
      map1Ref ! i
    
    t.awaitTermination()