Files that contain only a single class are marked ...

# intellij

[arekolek]

Files that contain only a single class are marked with the lower icon (“Kotlin class”) while other files with the top one (“Kotlin file”).

Wouldn’t it make more sense if private top-level declarations would not cause the icon to be “Kotlin file”?

So for example, this file would still be counted as a “Kotlin class”:

class Foo {
    fun bar(): String = BAZ
}

private const val BAZ = "baz"

[karelpeeters]

Yes, honestly just the icon discourages me a little but from pulling helper functions out of classes if they don't depend on any state.

[arekolek]

Turns out there’s already an issue for that https://youtrack.jetbrains.com/issue/KT-25440

@diesieben07 @karelpeeters @kartoffelsup @bogdoll @ribesg Please vote for it if you can 🙂

[karelpeeters]

I was looking for an issue earlier too, thanks for actually succeeding simple smile

[Dico]

I would like to suggest that public extension functions of the same class are also exempted from making the file generic

[Dico]

Same issue as @karelpeeters, its discouraging

[arekolek]

@Dico makes sense to me, you could put it as a comment in that issue ☝️

BTW, with regard to the practice itself, why is it more preferable to make it a public extension function in the same file, rather than just a public member function of the class?

[karelpeeters]

There's an explanation here: https://medium.com/@elizarov/extension-oriented-design-13f4f27deaee