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  • c

    coder82

    04/13/2018, 4:07 PM
    Hello guys, is there a way to overload the rangeTo operator not globally?
  • c

    coder82

    04/13/2018, 4:07 PM
    I wanted to use it this way:
  • c

    coder82

    04/13/2018, 4:09 PM
    for that ".." I need to overload the operator globally... is there a way to declare it local to an object?
    -.txt
  • s

    Shawn

    04/13/2018, 4:10 PM
    you can declare an extension function within the scope of a class or object
  • c

    coder82

    04/13/2018, 4:10 PM
    this overload it globally declare, fine, is there a way to keep it local in an object or class?
    -.txt
  • s

    Shawn

    04/13/2018, 4:12 PM
    if you declare the extension within the class, it shouldn’t be accessible elsewhere
  • c

    coder82

    04/13/2018, 4:12 PM
    @Shawn but if i do that, it shows error the compiler when i use it
  • c

    coder82

    04/13/2018, 4:13 PM
    I am using it here:
  • c

    coder82

    04/13/2018, 4:13 PM
    @coder82 uploaded a file: Untitled
    -.txt
  • c

    coder82

    04/13/2018, 4:13 PM
    firstDate..secondDate gives error if I don't declare the rangeTo operator globally
  • s

    Shawn

    04/13/2018, 4:14 PM
    where are you using the extension?
  • s

    Shawn

    04/13/2018, 4:14 PM
    the scoping is only useful if you’re using the extension within the class you declare it in
  • c

    coder82

    04/13/2018, 4:14 PM
    ah ok
  • s

    Shawn

    04/13/2018, 4:14 PM
    if you want it available to some classes but not others, you’d have to group them within the same file
  • s

    Shawn

    04/13/2018, 4:14 PM
    and make the extension top-level
  • c

    coder82

    04/13/2018, 4:15 PM
    fine, then if I use it for example in another file, then... the has to be top level
  • c

    coder82

    04/13/2018, 4:15 PM
    that TestUtils is inside my tests
  • c

    coder82

    04/13/2018, 4:15 PM
    I am doing the Koans by the way
  • s

    Shawn

    04/13/2018, 4:15 PM
    I don’t think this is necessary to complete that particular Koan
  • c

    coder82

    04/13/2018, 4:16 PM
    no it's not but, I challenge myself a bit since I am learning, sometimes it doesn't make sense anyway
  • c

    coder82

    04/13/2018, 4:16 PM
    so this goes top level:
  • c

    coder82

    04/13/2018, 4:16 PM
    @coder82 uploaded a file: Untitled
    -.txt
  • c

    coder82

    04/13/2018, 4:16 PM
    otherwise this is not seen from other file:
  • c

    coder82

    04/13/2018, 4:16 PM
    @coder82 uploaded a file: Untitled
    -.txt
  • c

    coder82

    04/13/2018, 4:17 PM
    😕 ok, well maybe my question didn't make sense anyway
  • c

    coder82

    04/13/2018, 4:17 PM
    since I am using firstDate..secondDate kind of globally
  • c

    coder82

    04/13/2018, 4:17 PM
    it needs to reference it somewhere
  • j

    João Gonçalves

    04/13/2018, 4:20 PM
    As I was expecting, both x() and y() resulted in 10 but is there any way to reference the outer topLevel variable?
  • c

    coder82

    04/13/2018, 4:21 PM
    can u copy and paste the code quickly, I will try to help u
  • j

    João Gonçalves

    04/13/2018, 4:21 PM
    Copy code
    val topLevel:Int = 1337
fun foo(): Unit {
    val topLevel:Int = 10
    var x = fun(): Int {
        return topLevel
    }
    var y = { topLevel }
    println(x())
    println(y())
}


fun main(args: Array<String>) {
    foo();
}
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