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fix: bug in compact array

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2023-11-29 22:13:08 +01:00
parent 35848900c0
commit 12de469b52
4 changed files with 33 additions and 4 deletions
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6
either/array.go
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@@ -61,14 +61,14 @@ func SequenceArray[E, A any](ma []Either[E, A]) Either[E, []A] {
return SequenceArrayG[[]A](ma)
}
// CompactArrayG discards the none values and keeps the some values
// CompactArrayG discards the none values and keeps the right values
func CompactArrayG[A1 ~[]Either[E, A], A2 ~[]A, E, A any](fa A1) A2 {
return RA.Reduce(fa, func(out A2, value Either[E, A]) A2 {
return MonadFold(value, F.Constant1[E](out), F.Bind1st(RA.Append[A2, A], out))
}, make(A2, len(fa)))
}, make(A2, 0, len(fa)))
}
// CompactArray discards the none values and keeps the some values
// CompactArray discards the none values and keeps the right values
func CompactArray[E, A any](fa []Either[E, A]) []A {
return CompactArrayG[[]Either[E, A], []A](fa)
}