mirror of
https://github.com/IBM/fp-go.git
synced 2025-11-25 22:21:49 +02:00
122 lines
3.4 KiB
Go
122 lines
3.4 KiB
Go
// Copyright (c) 2023 - 2025 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 fromeither
|
|
|
|
import (
|
|
ET "github.com/IBM/fp-go/v2/either"
|
|
F "github.com/IBM/fp-go/v2/function"
|
|
C "github.com/IBM/fp-go/v2/internal/chain"
|
|
O "github.com/IBM/fp-go/v2/option"
|
|
)
|
|
|
|
//go:inline
|
|
func FromOption[A, HKTEA, E any](fromEither func(ET.Either[E, A]) HKTEA, onNone func() E) func(ma O.Option[A]) HKTEA {
|
|
return F.Flow2(ET.FromOption[A](onNone), fromEither)
|
|
}
|
|
|
|
//go:inline
|
|
func FromPredicate[E, A, HKTEA any](fromEither func(ET.Either[E, A]) HKTEA, pred func(A) bool, onFalse func(A) E) func(A) HKTEA {
|
|
return F.Flow2(ET.FromPredicate(pred, onFalse), fromEither)
|
|
}
|
|
|
|
func MonadFromOption[E, A, HKTEA any](
|
|
fromEither func(ET.Either[E, A]) HKTEA,
|
|
onNone func() E,
|
|
ma O.Option[A],
|
|
) HKTEA {
|
|
return F.Pipe1(
|
|
O.MonadFold(
|
|
ma,
|
|
F.Nullary2(onNone, ET.Left[A, E]),
|
|
ET.Right[E, A],
|
|
),
|
|
fromEither,
|
|
)
|
|
}
|
|
|
|
//go:inline
|
|
func FromOptionK[A, E, B, HKTEB any](
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
onNone func() E) func(f func(A) O.Option[B]) func(A) HKTEB {
|
|
// helper
|
|
return F.Bind2nd(F.Flow2[func(A) O.Option[B], func(O.Option[B]) HKTEB, A, O.Option[B], HKTEB], FromOption(fromEither, onNone))
|
|
}
|
|
|
|
//go:inline
|
|
func MonadChainEitherK[A, E, B, HKTEA, HKTEB any](
|
|
mchain func(HKTEA, func(A) HKTEB) HKTEB,
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
ma HKTEA,
|
|
f func(A) ET.Either[E, B]) HKTEB {
|
|
return mchain(ma, F.Flow2(f, fromEither))
|
|
}
|
|
|
|
//go:inline
|
|
func ChainEitherK[A, E, B, HKTEA, HKTEB any](
|
|
mchain func(func(A) HKTEB) func(HKTEA) HKTEB,
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
f func(A) ET.Either[E, B]) func(HKTEA) HKTEB {
|
|
return mchain(F.Flow2(f, fromEither))
|
|
}
|
|
|
|
//go:inline
|
|
func ChainOptionK[A, E, B, HKTEA, HKTEB any](
|
|
mchain func(HKTEA, func(A) HKTEB) HKTEB,
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
onNone func() E,
|
|
) func(f func(A) O.Option[B]) func(ma HKTEA) HKTEB {
|
|
return F.Flow2(FromOptionK[A](fromEither, onNone), F.Bind1st(F.Bind2nd[HKTEA, func(A) HKTEB, HKTEB], mchain))
|
|
}
|
|
|
|
//go:inline
|
|
func MonadChainFirstEitherK[A, E, B, HKTEA, HKTEB any](
|
|
mchain func(HKTEA, func(A) HKTEA) HKTEA,
|
|
mmap func(HKTEB, func(B) A) HKTEA,
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
ma HKTEA,
|
|
f func(A) ET.Either[E, B]) HKTEA {
|
|
return C.MonadChainFirst(mchain, mmap, ma, F.Flow2(f, fromEither))
|
|
}
|
|
|
|
//go:inline
|
|
func ChainFirstEitherK[A, E, B, HKTEA, HKTEB any](
|
|
mchain func(func(A) HKTEA) func(HKTEA) HKTEA,
|
|
mmap func(func(B) A) func(HKTEB) HKTEA,
|
|
fromEither func(ET.Either[E, B]) HKTEB,
|
|
f func(A) ET.Either[E, B]) func(HKTEA) HKTEA {
|
|
return C.ChainFirst(mchain, mmap, F.Flow2(f, fromEither))
|
|
}
|
|
|
|
//go:inline
|
|
func BindEitherK[
|
|
E, S1, S2, T,
|
|
HKTET,
|
|
HKTES1,
|
|
HKTES2 any](
|
|
mchain func(func(S1) HKTES2) func(HKTES1) HKTES2,
|
|
mmap func(func(T) S2) func(HKTET) HKTES2,
|
|
fromEither func(ET.Either[E, T]) HKTET,
|
|
setter func(T) func(S1) S2,
|
|
f func(S1) ET.Either[E, T],
|
|
) func(HKTES1) HKTES2 {
|
|
return C.Bind(
|
|
mchain,
|
|
mmap,
|
|
setter,
|
|
F.Flow2(f, fromEither),
|
|
)
|
|
}
|