kitecore/io.github.yuroyami.kitecore.util/mapFailure

mapFailure

inline fun <T> Result<T>.mapFailure(transform: (Throwable) -> Throwable): Result<T>

Returns a Result whose failure exception is replaced by the result of transform, or the original success.

The failure-side counterpart of Result.map, typically used to wrap low-level exceptions into domain-specific ones. Exceptions thrown by transform are not caught.

val user = fetchUser(id).mapFailure { UserLoadException(id, cause = it) }

Return

this success unchanged, or a failure holding the transformed exception.

Parameters

transform

mapping from the current exception to its replacement.