Idiomatic way of creating named closures

[doongjohn]

What do you think about using the template?
    
    
    template defSayText(text: string): untyped =
      proc sayText() =
        echo text
      sayText
    
    template defSetText(text: string): untyped =
      proc setText(newText: string) =
        text = newText
      setText
    
    let (sayText, setText) = block:
      var text = "Hello Nim!"
      (
        defSayText(text),
        defSetText(text)
      )
    
    sayText() # prints "Hello Nim!"
    setText("Hello world!")
    sayText() # prints "Hello world!"
    
    
    Run