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32 lines
789 B
Go
32 lines
789 B
Go
package option
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import (
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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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// TraverseArray transforms an array
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func TraverseArrayG[GA ~[]A, GB ~[]B, A, B any](f func(A) Option[B]) func(GA) Option[GB] {
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return RA.Traverse[GA](
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Of[GB],
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MonadMap[GB, func(B) GB],
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MonadAp[B, GB],
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f,
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)
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}
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// TraverseArray transforms an array
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func TraverseArray[A, B any](f func(A) Option[B]) func([]A) Option[[]B] {
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return TraverseArrayG[[]A, []B](f)
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}
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func SequenceArrayG[GA ~[]A, GOA ~[]Option[A], A any](ma GOA) Option[GA] {
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return TraverseArrayG[GOA, GA](F.Identity[Option[A]])(ma)
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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[A any](ma []Option[A]) Option[[]A] {
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return SequenceArrayG[[]A](ma)
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}
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