Result

sealed class Result<out R>

Represents an asynchronous operation that can be in one of four states: loading, success, error, or empty.

The type of data held by a successful result.

Constructors

protected constructor()

The operation completed but produced no meaningful data.

data class Error(val exception: Exception) : Result<Nothing>

The operation failed with an exception describing the cause.

The operation is currently in progress and has not yet produced a value.

data class Success<out T>(val data: T) : Result<T>

The operation completed successfully with data.

Extracts the data from a Result.Success, or returns null for all other states.

fun <T, R> Result<T>.map(block: (T) -> Result<R>): Result<R>

Transforms a successful result using block, propagating Result.Loading, Result.Empty, and Result.Error unchanged.

open override fun toString(): String