Hello, Can you tell me difference between interface and sealed interface, I checked the Kotlin docs ...

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[Ömer Sungur]

Hello, Can you tell me difference between interface and sealed interface, I checked the Kotlin docs but I didn't find a detailed explanation. When we should sealed interface instead normal interface? What featutes does sealed interface have?

[ephemient]

same as the difference between open class and sealed class (interface defaults to open instead of final like class does because that wouldn't make sense)

[ephemient]

the docs cover both sealed class and sealed interface https://kotlinlang.org/docs/sealed-classes.html

[Ömer Sungur]

Okey thank you for replying :)

[Haroon Iftikhar]

A sealed interface is a special type of interface that can have a limited set of implementations, and all of these implementations must be defined within the same file or a set of related files (known as a compilation unit)

[Haroon Iftikhar]

think enum but for inheritance

[Haroon Iftikhar]

sealed interface Result

class Success : Result
class Failure : Result

[efemoney]

Use sealed interface, when you hit any “restrictions”, consider if changing to an interface is what you want