Re: Simple coroutine like Python generator send()?

[mashingan]

Read about iterator in 
[manual](https://nim-lang.github.io/Nim/manual.html#iterators-and-the-for-statement)

[playground](https://play.nim-lang.org/index.html?ix=1MaK)
    
    
    proc countTo(maxi: int): iterator(x = 1): int =
      result = iterator(x = 1): int =
        var i = 0
        while i <= maxi:
            i.inc x
            yield i
    
    var itx3 = countTo 3
    echo itx3(2)
    
    if not itx3.finished:
        echo itx3()
    
    
    Run