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fix: add missing withIndex methods

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2023-09-11 13:48:51 +02:00
parent 7da9de6f41
commit a2a6a41993
26 changed files with 415 additions and 6 deletions
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18
either/array.go
View File

@@ -20,7 +20,7 @@ import (
RA "github.com/IBM/fp-go/internal/array"
)
// TraverseArray transforms an array
// TraverseArrayG transforms an array
func TraverseArrayG[GA ~[]A, GB ~[]B, E, A, B any](f func(A) Either[E, B]) func(GA) Either[E, GB] {
return RA.Traverse[GA](
Of[E, GB],
@@ -36,6 +36,22 @@ func TraverseArray[E, A, B any](f func(A) Either[E, B]) func([]A) Either[E, []B]
return TraverseArrayG[[]A, []B](f)
}
// TraverseArrayWithIndexG transforms an array
func TraverseArrayWithIndexG[GA ~[]A, GB ~[]B, E, A, B any](f func(int, A) Either[E, B]) func(GA) Either[E, GB] {
return RA.TraverseWithIndex[GA](
Of[E, GB],
Map[E, GB, func(B) GB],
Ap[GB, E, B],
f,
)
}
// TraverseArrayWithIndex transforms an array
func TraverseArrayWithIndex[E, A, B any](f func(int, A) Either[E, B]) func([]A) Either[E, []B] {
return TraverseArrayWithIndexG[[]A, []B](f)
}
func SequenceArrayG[GA ~[]A, GOA ~[]Either[E, A], E, A any](ma GOA) Either[E, GA] {
return TraverseArrayG[GOA, GA](F.Identity[Either[E, A]])(ma)
}

17
either/record.go
View File

@@ -20,7 +20,7 @@ import (
RR "github.com/IBM/fp-go/internal/record"
)
// TraverseRecord transforms a record of options into an option of a record
// TraverseRecordG transforms a record of options into an option of a record
func TraverseRecordG[GA ~map[K]A, GB ~map[K]B, K comparable, E, A, B any](f func(A) Either[E, B]) func(GA) Either[E, GB] {
return RR.Traverse[GA](
Of[E, GB],
@@ -35,6 +35,21 @@ func TraverseRecord[K comparable, E, A, B any](f func(A) Either[E, B]) func(map[
return TraverseRecordG[map[K]A, map[K]B](f)
}
// TraverseRecordWithIndexG transforms a record of options into an option of a record
func TraverseRecordWithIndexG[GA ~map[K]A, GB ~map[K]B, K comparable, E, A, B any](f func(K, A) Either[E, B]) func(GA) Either[E, GB] {
return RR.TraverseWithIndex[GA](
Of[E, GB],
Map[E, GB, func(B) GB],
Ap[GB, E, B],
f,
)
}
// TraverseRecordWithIndex transforms a record of eithers into an either of a record
func TraverseRecordWithIndex[K comparable, E, A, B any](f func(K, A) Either[E, B]) func(map[K]A) Either[E, map[K]B] {
return TraverseRecordWithIndexG[map[K]A, map[K]B](f)
}
func SequenceRecordG[GA ~map[K]A, GOA ~map[K]Either[E, A], K comparable, E, A any](ma GOA) Either[E, GA] {
return TraverseRecordG[GOA, GA](F.Identity[Either[E, A]])(ma)
}