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fix: introduce stateless iterator

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2023-07-24 16:43:07 +02:00
parent 8c58e8d760
commit 1713de0c3e
51 changed files with 2076 additions and 25 deletions
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22
array/generic/array.go
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@ -158,3 +158,25 @@ func MonadAp[BS ~[]B, ABS ~[]func(A) B, AS ~[]A, B, A any](fab ABS, fa AS) BS {
func Ap[BS ~[]B, ABS ~[]func(A) B, AS ~[]A, B, A any](fa AS) func(ABS) BS {
return F.Bind2nd(MonadAp[BS, ABS, AS], fa)
}
func IsEmpty[AS ~[]A, A any](as AS) bool {
return array.IsEmpty(as)
}
func Match[AS ~[]A, A, B any](onEmpty func() B, onNonEmpty func(AS) B) func(AS) B {
return func(as AS) B {
if IsEmpty(as) {
return onEmpty()
}
return onNonEmpty(as)
}
}
func MatchLeft[AS ~[]A, A, B any](onEmpty func() B, onNonEmpty func(A, AS) B) func(AS) B {
return func(as AS) B {
if IsEmpty(as) {
return onEmpty()
}
return onNonEmpty(as[0], as[1:])
}
}