```sealed class BaseViewEffect object ShowView BaseViewEffec

Question

```sealed class BaseViewEffect object ShowView BaseViewEffect sealed class ChildViewEffect BaseViewEffect ``` anyone can help me to achieve inheritance for sealed class

Rohit Singh · Answer

< jw> any ideas to solve this use case

ghedeon · Answer

On a side note ` jw` would you make me a sandwich I thought I might as well give it a try since you re on a speed dial for everything

jw · Answer

Sure what protein White or wheat bread Provolone or Swiss What toppings Toasted

diesieben07 · Answer

< Rohit Singh> Your code worked fine for me What is your problem exactly

Dico · Answer

The problem is that you cant have inheritance of sealed classes without putting the children inside the sealed class I would prefer the ability to have them in the same file

Fredrik Larsen · Answer

That was true before Kotlin 1 1 but now it works as long as it is in the same file <https kotlinlang org docs reference sealed classes html>

Dico · Answer

That s weird I ve had the problem of not being able to do this recently

Dico · Answer

Well I tried it and it works I must have imagined it

Dico · Answer

Ah no theres something that does not work

Dico · Answer

Example ``` sealed class MySealedClass open val length get = 0 class SpecialBlock override val data ByteArray SpecialVariants sealed class SpecialVariants MySealedClass abstract val data ByteArray override val length get = data size ```

Dico · Answer

`SpecialBlock` can t inherit from `SpecialVariants`

Dico · Answer

bug report

Dico · Answer

Fredrik Larsen · Answer

You can flatten the hirearchy

Fredrik Larsen · Answer

``` sealed class MySealedClass open val length get = 0 sealed class SpecialVariants MySealedClass abstract val data ByteArray override val length get = data size class SpecialBlock override val data ByteArray SpecialVariants ```

Dico · Answer

I understand that there s a workaround I still would consider this inconsistent

Dico · Answer

For me the workaround was to use `abstract` instead of `sealed` sadly

Fredrik Larsen · Answer

Fair enough I still don t see the issue with flattening though If you use abstract you lose compile time information about the hierarchy

Dico · Answer

I have a preference to keep the file to 1 declaration as that is cleaner in the IntelliJ project view

Fredrik Larsen · Answer

I see

Dico · Answer

Sometimes I add more declarations collecting connected stuff in one file but often I keep it down to one

Rohit Singh · Answer

< diesieben07> please read the messages above point up 2

diesieben07 · Answer

I did Why

Rohit Singh · Answer

It only works when parent class is in same file

diesieben07 · Answer

Yes that s how sealed classes work

Rohit Singh · Answer

yeah just wanted to know if its possible to have it in different file and work

diesieben07 · Answer

Since sealed classes are specifically designed to not allow that the answer is no