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  • n

    noncom

    10/28/2017, 4:36 PM
    (except for using "is")
  • n

    noncom

    10/28/2017, 4:36 PM
    oh
  • n

    noncom

    10/28/2017, 4:36 PM
    🙂
  • n

    noncom

    10/28/2017, 4:36 PM
    great! thanks
  • n

    noncom

    10/28/2017, 5:47 PM
    one more question on Kotlin
  • n

    noncom

    10/28/2017, 5:47 PM
    in my code I get the error "An interface cannot implement a method of Any"
  • n

    noncom

    10/28/2017, 5:47 PM
    why is that?
  • n

    noncom

    10/28/2017, 5:47 PM
    I want to implement the toString method in my top interface
  • n

    noncom

    10/28/2017, 5:48 PM
    it would perfectly work for all the inheritors, as far as I can see
  • n

    noncom

    10/28/2017, 5:48 PM
    however, am I forced to implement literally the same method in all the dozen of the inheritors?
  • a

    aballano

    10/29/2017, 3:27 AM
    hi there! I just found out that is not possible pass a function reference of a property to the map extension function:
    Copy code
    listOf( ... )
  .map { validateEmail(it) }
  • a

    aballano

    10/29/2017, 3:27 AM
    this works for: 
    fun validateEmail(email: String): Boolean = ...
  • a

    aballano

    10/29/2017, 3:28 AM
    and for 
    val validateEmail: (String) -> Boolean = ...
  • a

    aballano

    10/29/2017, 3:28 AM
    but when using the function reference syntax, only the former works:
    Copy code
    listOf( ... )
  .map(::validateEmail)
  • a

    aballano

    10/29/2017, 3:29 AM
    Any hints why? (Bug maybe?)
  • d

    dave08

    10/29/2017, 5:41 AM
    Maybe ::getValidateEmail?
  • p

    pniederw

    10/29/2017, 7:12 AM
    @aballano this works for me: 
    .map(this::validateEmail.get())
  • i

    ilya.gorbunov

    10/29/2017, 7:52 AM
    @aballano if 
    validateEmail
    is a variable of functional type, just pass it as argument: 
    list.map(validateEmail)
  • v

    voddan

    10/29/2017, 10:46 AM
    I think InteliJ should be able to fold things list declarations, long varargs and on-line functions. Vote on the issues if you agree: https://youtrack.jetbrains.com/issue/KT-5206 https://youtrack.jetbrains.com/issue/KT-6316
  • a

    aballano

    10/29/2017, 2:20 PM
    @pniederw @ilya.gorbunov thank you, you're both right! 🙂
  • s

    simon.vergauwen

    10/29/2017, 3:18 PM
    @simon.vergauwen uploaded a file:

    Screen Shot 2017-10-29 at 16.13.20.png▾

  • s

    simon.vergauwen

    10/29/2017, 3:18 PM
    Has any1 encountered this before? If it is a public API then smart casting should be possible, no?
  • k

    karelpeeters

    10/29/2017, 3:19 PM
    Can you show us the surrounding code?
  • i

    ilya.gorbunov

    10/29/2017, 3:20 PM
    @simon.vergauwen Since this property is in another module, the compiler can't make assumptions of how it is implemented, whether it's stable or not.
  • s

    simon.vergauwen

    10/29/2017, 6:56 PM
  • a

    aballano

    10/29/2017, 8:22 PM
    @simon.vergauwen i think the problem is the extra Tuple's property access that you do on the Some branch
  • a

    aballano

    10/29/2017, 8:23 PM
    the compiler isn't smart enough (yet, since i remember seing an issue in this regard at some point) to ensure that the second call to 
    posCandy.b
    is the same type, because it doesn't have knowledge about the getter's purity
  • a

    aballano

    10/29/2017, 8:29 PM
    but I just tried in the project and it effectively works for me
  • a

    aballano

    10/29/2017, 8:30 PM
    @simon.vergauwen are you using Kotlin 1.1.51?
  • t

    tschuchort

    10/29/2017, 9:34 PM
    where can I find some resources on how to write a kotlin compiler plugin?
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