Android / KMP Error Handling

Result Wrapper (core:domain)

A generic, typed Result that works across all layers — data, domain, presentation, validation, anywhere a function can succeed or fail with a typed error.

interface Error

sealed interface Result<out D, out E : Error> {
    data class Success<out D>(val data: D) : Result<D, Nothing>
    data class Error<out E : com.example.Error>(val error: E) : Result<Nothing, E>
}

typealias EmptyResult<E> = Result<Unit, E>