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fix: add missing MapLeft

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2024-01-15 12:04:55 +01:00
parent f3642bad60
commit a14feff1d6
6 changed files with 42 additions and 5 deletions
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9
readereither/reader.go
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@@ -151,3 +151,12 @@ func MonadFlap[L, E, A, B any](fab ReaderEither[L, E, func(A) B], a A) ReaderEit
func Flap[L, E, B, A any](a A) func(ReaderEither[L, E, func(A) B]) ReaderEither[L, E, B] {
return G.Flap[ReaderEither[L, E, func(A) B], ReaderEither[L, E, B]](a)
}
func MonadMapLeft[C, E1, E2, A any](fa ReaderEither[C, E1, A], f func(E1) E2) ReaderEither[C, E2, A] {
return G.MonadMapLeft[ReaderEither[C, E1, A], ReaderEither[C, E2, A]](fa, f)
}
// MapLeft applies a mapping function to the error channel
func MapLeft[C, E1, E2, A any](f func(E1) E2) func(ReaderEither[C, E1, A]) ReaderEither[C, E2, A] {
return G.MapLeft[ReaderEither[C, E1, A], ReaderEither[C, E2, A]](f)
}