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35 lines
1.2 KiB
Go
35 lines
1.2 KiB
Go
package generic
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import (
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ET "github.com/ibm/fp-go/either"
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F "github.com/ibm/fp-go/function"
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RA "github.com/ibm/fp-go/internal/array"
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)
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// MonadTraverseArray transforms an array
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func MonadTraverseArray[GB ~func(E) ET.Either[L, B], GBS ~func(E) ET.Either[L, BBS], AAS ~[]A, BBS ~[]B, L, E, A, B any](ma AAS, f func(A) GB) GBS {
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return RA.MonadTraverse[AAS](
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Of[GBS, L, E, BBS],
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Map[GBS, func(E) ET.Either[L, func(B) BBS], L, E, BBS, func(B) BBS],
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Ap[GB, GBS, func(E) ET.Either[L, func(B) BBS], L, E, B, BBS],
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ma, f,
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)
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}
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// TraverseArray transforms an array
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func TraverseArray[GB ~func(E) ET.Either[L, B], GBS ~func(E) ET.Either[L, BBS], AAS ~[]A, BBS ~[]B, L, E, A, B any](f func(A) GB) func(AAS) GBS {
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return RA.Traverse[AAS](
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Of[GBS, L, E, BBS],
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Map[GBS, func(E) ET.Either[L, func(B) BBS], L, E, BBS, func(B) BBS],
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Ap[GB, GBS, func(E) ET.Either[L, func(B) BBS], L, E, B, BBS],
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f,
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)
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}
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// SequenceArray converts a homogeneous sequence of either into an either of sequence
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func SequenceArray[GA ~func(E) ET.Either[L, A], GAS ~func(E) ET.Either[L, AAS], AAS ~[]A, GAAS ~[]GA, L, E, A any](ma GAAS) GAS {
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return MonadTraverseArray[GA, GAS](ma, F.Identity[GA])
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}
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