Wrote up a <feature request> to support 2nd-order ...

# arrow

[Youssef Shoaib [MOD]]

Wrote up a feature request to support 2nd-order function inlining in Kotlin. Basically, this would allow for optimising Raise completely on both the happy and error paths by utilising non-local returns. Might be an interesting thought exercise! It boils down to the pattern of:

val value = someValue.getOrElse { return Either.Left(it) } 
someFunction(value).getOrElse { return Either.Left(it) }

by turning return Etiher.Left(it) into a function that's available only locally within an "anonymous lambda inline function".
The gist of it is it would allow:

either { raise: (String) -> Nothing ->
  someFunction(arg, raise)
}

or, if the extra possibility of functional context receivers being inlined is implemented:

either {
  someFunction(arg)
}

but with no exception throwing magic!
It would also allow for things like break within a forEach