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fix: auto generate SequenceT for ReaderIOEither

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
This commit is contained in:
Dr. Carsten Leue
2023-07-20 16:17:23 +02:00
parent 680c103239
commit 9e32acf551
21 changed files with 5045 additions and 4657 deletions
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36
array/generic/array.go
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@ -17,6 +17,24 @@ func From[GA ~[]A, A any](data ...A) GA {
return data
}
// MakeBy returns a `Array` of length `n` with element `i` initialized with `f(i)`.
func MakeBy[AS ~[]A, F ~func(int) A, A any](n int, f F) AS {
// sanity check
if n <= 0 {
return Empty[AS]()
}
// run the generator function across the input
as := make(AS, n)
for i := n - 1; i >= 0; i-- {
as[i] = f(i)
}
return as
}
func Replicate[AS ~[]A, A any](n int, a A) AS {
return MakeBy[AS](n, F.Constant1[int](a))
}
func Lookup[GA ~[]A, A any](idx int) func(GA) O.Option[A] {
none := O.None[A]()
if idx < 0 {
@ -107,3 +125,21 @@ func MonadPartition[GA ~[]A, A any](as GA, pred func(A) bool) tuple.Tuple2[GA, G
func Partition[GA ~[]A, A any](pred func(A) bool) func(GA) tuple.Tuple2[GA, GA] {
return F.Bind2nd(MonadPartition[GA, A], pred)
}
func MonadChain[AS ~[]A, BS ~[]B, A, B any](fa AS, f func(a A) BS) BS {
return array.Reduce(fa, func(bs BS, a A) BS {
return append(bs, f(a)...)
}, Empty[BS]())
}
func Chain[AS ~[]A, BS ~[]B, A, B any](f func(A) BS) func(AS) BS {
return F.Bind2nd(MonadChain[AS, BS, A, B], f)
}
func MonadAp[BS ~[]B, ABS ~[]func(A) B, AS ~[]A, B, A any](fab ABS, fa AS) BS {
return MonadChain(fab, F.Bind1st(MonadMap[AS, BS, A, B], fa))
}
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)
}