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fp-go/context/readerioeither/monoid.go
Dr. Carsten Leue 5f25317f97 fix: provide AltMonoid
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2023-10-06 21:50:22 +02:00

57 lines
2.0 KiB
Go

// Copyright (c) 2023 IBM Corp.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package readerioeither
import (
G "github.com/IBM/fp-go/context/readerioeither/generic"
L "github.com/IBM/fp-go/lazy"
M "github.com/IBM/fp-go/monoid"
)
// ApplicativeMonoid returns a [Monoid] that concatenates [ReaderIOEither] instances via their applicative
func ApplicativeMonoid[A any](m M.Monoid[A]) M.Monoid[ReaderIOEither[A]] {
return G.ApplicativeMonoid[ReaderIOEither[A], ReaderIOEither[func(A) A]](m)
}
// ApplicativeMonoidSeq returns a [Monoid] that concatenates [ReaderIOEither] instances via their applicative
func ApplicativeMonoidSeq[A any](m M.Monoid[A]) M.Monoid[ReaderIOEither[A]] {
return G.ApplicativeMonoidSeq[ReaderIOEither[A], ReaderIOEither[func(A) A]](m)
}
// ApplicativeMonoidPar returns a [Monoid] that concatenates [ReaderIOEither] instances via their applicative
func ApplicativeMonoidPar[A any](m M.Monoid[A]) M.Monoid[ReaderIOEither[A]] {
return G.ApplicativeMonoidPar[ReaderIOEither[A], ReaderIOEither[func(A) A]](m)
}
// AlternativeMonoid is the alternative [Monoid] for [ReaderIOEither]
func AlternativeMonoid[A any](m M.Monoid[A]) M.Monoid[ReaderIOEither[A]] {
return M.AlternativeMonoid(
Of[A],
MonadMap[A, func(A) A],
MonadAp[A, A],
MonadAlt[A],
m,
)
}
// AltMonoid is the alternative [Monoid] for an [ReaderIOEither]
func AltMonoid[A any](zero L.Lazy[ReaderIOEither[A]]) M.Monoid[ReaderIOEither[A]] {
return M.AltMonoid(
zero,
MonadAlt[A],
)
}