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fp-go/identity/generic/identity.go
Dr. Carsten Leue 839ef47054 fix: refactor writer
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2024-02-01 18:26:09 +01:00

67 lines
1.7 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 generic
import (
F "github.com/IBM/fp-go/function"
C "github.com/IBM/fp-go/internal/chain"
FC "github.com/IBM/fp-go/internal/functor"
)
func MonadAp[GAB ~func(A) B, B, A any](fab GAB, fa A) B {
return fab(fa)
}
func Ap[GAB ~func(A) B, B, A any](fa A) func(GAB) B {
return F.Bind2nd(MonadAp[GAB, B, A], fa)
}
func MonadMap[GAB ~func(A) B, A, B any](fa A, f GAB) B {
return f(fa)
}
func Map[GAB ~func(A) B, A, B any](f GAB) func(A) B {
return f
}
func MonadChain[GAB ~func(A) B, A, B any](ma A, f GAB) B {
return f(ma)
}
func Chain[GAB ~func(A) B, A, B any](f GAB) func(A) B {
return f
}
func MonadChainFirst[GAB ~func(A) B, A, B any](fa A, f GAB) A {
return C.MonadChainFirst(MonadChain[func(A) A, A, A], MonadMap[func(B) A, B, A], fa, f)
}
func ChainFirst[GAB ~func(A) B, A, B any](f GAB) func(A) A {
return C.ChainFirst(
Chain[func(A) A, A, A],
Map[func(B) A, B, A],
f,
)
}
func MonadFlap[GAB ~func(A) B, A, B any](fab GAB, a A) B {
return FC.MonadFlap(MonadMap[func(GAB) B, GAB, B], fab, a)
}
func Flap[GAB ~func(A) B, B, A any](a A) func(GAB) B {
return FC.Flap(Map[func(GAB) B, GAB, B], a)
}