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fix: add writer

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Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
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Dr. Carsten Leue
2023-07-23 21:45:32 +02:00
parent 205b728bda
commit 9e14cd1c00
21 changed files with 8249 additions and 7731 deletions
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78
writer/writer.go Normal file
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@@ -0,0 +1,78 @@
package writer
import (
M "github.com/IBM/fp-go/monoid"
S "github.com/IBM/fp-go/semigroup"
T "github.com/IBM/fp-go/tuple"
G "github.com/IBM/fp-go/writer/generic"
)
type Writer[W, A any] func() T.Tuple2[A, W]
func Of[A, W any](m M.Monoid[W]) func(A) Writer[W, A] {
return G.Of[Writer[W, A]](m)
}
func MonadMap[FCT ~func(A) B, W, A, B any](fa Writer[W, A], f FCT) Writer[W, B] {
return G.MonadMap[Writer[W, B], Writer[W, A]](fa, f)
}
func Map[FCT ~func(A) B, W, A, B any](f FCT) func(Writer[W, A]) Writer[W, B] {
return G.Map[Writer[W, B], Writer[W, A]](f)
}
func MonadChain[FCT ~func(A) Writer[W, B], W, A, B any](s S.Semigroup[W]) func(Writer[W, A], FCT) Writer[W, B] {
return G.MonadChain[Writer[W, B], Writer[W, A], FCT](s)
}
func Chain[A, B, W any](s S.Semigroup[W]) func(func(A) Writer[W, B]) func(Writer[W, A]) Writer[W, B] {
return G.Chain[Writer[W, B], Writer[W, A], func(A) Writer[W, B]](s)
}
func MonadAp[B, A, W any](s S.Semigroup[W]) func(Writer[W, func(A) B], Writer[W, A]) Writer[W, B] {
return G.MonadAp[Writer[W, B], Writer[W, func(A) B], Writer[W, A]](s)
}
func Ap[B, A, W any](s S.Semigroup[W]) func(Writer[W, A]) func(Writer[W, func(A) B]) Writer[W, B] {
return G.Ap[Writer[W, B], Writer[W, func(A) B], Writer[W, A]](s)
}
func MonadChainFirst[FCT ~func(A) Writer[W, B], W, A, B any](s S.Semigroup[W]) func(Writer[W, A], FCT) Writer[W, A] {
return G.MonadChainFirst[Writer[W, B], Writer[W, A], FCT](s)
}
func ChainFirst[FCT ~func(A) Writer[W, B], W, A, B any](s S.Semigroup[W]) func(FCT) func(Writer[W, A]) Writer[W, A] {
return G.ChainFirst[Writer[W, B], Writer[W, A], FCT](s)
}
func Flatten[W, A any](s S.Semigroup[W]) func(Writer[W, Writer[W, A]]) Writer[W, A] {
return G.Flatten[Writer[W, Writer[W, A]], Writer[W, A]](s)
}
func Execute[W, A any](fa Writer[W, A]) W {
return G.Execute(fa)
}
func Evaluate[W, A any](fa Writer[W, A]) A {
return G.Evaluate(fa)
}
// MonadCensor modifies the final accumulator value by applying a function
func MonadCensor[FCT ~func(W) W, W, A any](fa Writer[W, A], f FCT) Writer[W, A] {
return G.MonadCensor[Writer[W, A]](fa, f)
}
// Censor modifies the final accumulator value by applying a function
func Censor[FCT ~func(W) W, W, A any](f FCT) func(Writer[W, A]) Writer[W, A] {
return G.Censor[Writer[W, A]](f)
}
// MonadListens projects a value from modifications made to the accumulator during an action
func MonadListens[FCT ~func(W) B, W, A, B any](fa Writer[W, A], f FCT) Writer[W, T.Tuple2[A, B]] {
return G.MonadListens[Writer[W, A], Writer[W, T.Tuple2[A, B]]](fa, f)
}
// Listens projects a value from modifications made to the accumulator during an action
func Listens[FCT ~func(W) B, W, A, B any](f FCT) func(Writer[W, A]) Writer[W, T.Tuple2[A, B]] {
return G.Listens[Writer[W, A], Writer[W, T.Tuple2[A, B]]](f)
}