As per the suggestion cross posting into < C0B8Q383C|stdlib> kotlinlang #stdlib

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Title

a

Andy McGhie

07/04/2022, 11:31 PM

As per the suggestion cross-posting into #stdlib

e

ephemient

07/04/2022, 11:35 PM

result.recoverCatching { exception ->
    throw SomeOtherException(exception)
}

a

Andy McGhie

07/04/2022, 11:36 PM

Isn't that slightly inefficient from a processing perspective as the JVM will need to generate the stacktrace etc?

e

ephemient

07/04/2022, 11:49 PM

the stacktrace is gathered when

SomeOtherException

is constructed, so you'll have that cost even without the

throw

.

(but yes, exceptional control flow is more expensive, just not for that reason)

if that matters, you can still use

result.fold(onSuccess = { Result.success(it) }, onFailure = { Result.failure(transform(it)) })

instead of your original

a

Andy McGhie

07/04/2022, 11:58 PM

Thanks @ephemient we've been using the

fold

method in our code, was just hoping for a slightly cleaner/more elegant solution

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