Hi guys, I have a sealed class S in another class ...

# getting-started

[Smorg]

Hi guys, I have a sealed class S in another class V with subtypes of the sealed class defined in it. How can I access methods of V in the subtypes?

class V {
    fun doSomething() {
        ...
    }

   sealed class S {
         object S1: S() {
             // how can I possibly do below:
             init {
                  doSomething()
             }
         }
   }
}

I know for a regular class, I just need to declare it as inner and call the regular outer class methods from it

[marstran]

Could you provide a minimal example that demonstrates your problem?

[Smorg]

updated @marstran

[marstran]

You can't make a sealed class an inner class. Also, an inner class cannot be an object, because the object needs a reference to an instance of the outer class (so you would need one singleton object for every instance of V, which is contradictory).

[marstran]

But do you have to make it an inner class? You could do something like this:

class V {
    fun doSomething() {
        ...
    }
}

sealed class S(val v: V) {
    class S1(v: V): S(v) {
        init {
            v.doSomething()
        }
    }
}

[Smorg]

Thanks @marstran, your example above is clever. Modified to suit my need.

class V {
    fun doSomething() {
        ...
    }

   sealed class S {
         class S1(v: V): S() {
             init {
                  v.doSomething()
             }
         }
   }
}