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fix: more functions for StateReaderIOEither

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2024-02-19 14:34:35 +01:00
parent f4f4fb306c
commit 76ae6f2bec
4 changed files with 244 additions and 3 deletions
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12
readerioeither/generic/reader.go
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@@ -449,3 +449,15 @@ func MonadMapLeft[GREA1 ~func(R) GEA1, GREA2 ~func(R) GEA2, GEA1 ~func() ET.Eith
func MapLeft[GREA1 ~func(R) GEA1, GREA2 ~func(R) GEA2, GEA1 ~func() ET.Either[E1, A], GEA2 ~func() ET.Either[E2, A], R, E1, E2, A any](f func(E1) E2) func(GREA1) GREA2 {
return F.Bind2nd(MonadMapLeft[GREA1, GREA2], f)
}
// Local changes the value of the local context during the execution of the action `ma` (similar to `Contravariant`'s
// `contramap`).
func Local[
GEA1 ~func(R1) GIOA,
GEA2 ~func(R2) GIOA,
GIOA ~func() ET.Either[E, A],
R1, R2, E, A any,
](f func(R2) R1) func(GEA1) GEA2 {
return RD.Local[GEA1, GEA2](f)
}