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fix: add basic implementation of StateReaderIOEither
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
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// Copyright (c) 2024 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. | ||
|
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package state | ||
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import ( | ||
F "github.com/IBM/fp-go/function" | ||
P "github.com/IBM/fp-go/pair" | ||
) | ||
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func Of[ | ||
HKTSA ~func(S) HKTA, | ||
HKTA, | ||
S, A any, | ||
]( | ||
fof func(P.Pair[A, S]) HKTA, | ||
|
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a A) HKTSA { | ||
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return F.Flow2( | ||
F.Bind1st(P.MakePair[A, S], a), | ||
fof, | ||
) | ||
} | ||
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func MonadMap[ | ||
HKTSA ~func(S) HKTA, | ||
HKTSB ~func(S) HKTB, | ||
HKTA, | ||
HKTB, | ||
S, A, B any, | ||
]( | ||
fmap func(HKTA, func(P.Pair[A, S]) P.Pair[B, S]) HKTB, | ||
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fa HKTSA, | ||
f func(A) B, | ||
) HKTSB { | ||
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return F.Flow2( | ||
fa, | ||
F.Bind2nd(fmap, func(a P.Pair[A, S]) P.Pair[B, S] { | ||
return P.MakePair(f(P.Head(a)), P.Tail(a)) | ||
}), | ||
) | ||
} | ||
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func Map[ | ||
HKTSA ~func(S) HKTA, | ||
HKTSB ~func(S) HKTB, | ||
HKTA, | ||
HKTB, | ||
S, A, B any, | ||
]( | ||
fmap func(func(P.Pair[A, S]) P.Pair[B, S]) func(HKTA) HKTB, | ||
|
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f func(A) B, | ||
) func(HKTSA) HKTSB { | ||
mp := fmap(func(a P.Pair[A, S]) P.Pair[B, S] { | ||
return P.MakePair(f(P.Head(a)), P.Tail(a)) | ||
}) | ||
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return func(fa HKTSA) HKTSB { | ||
return F.Flow2( | ||
fa, | ||
mp, | ||
) | ||
} | ||
} | ||
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func MonadChain[ | ||
HKTSA ~func(S) HKTA, | ||
HKTSB ~func(S) HKTB, | ||
HKTA, | ||
HKTB, | ||
S, A any, | ||
]( | ||
fchain func(HKTA, func(P.Pair[A, S]) HKTB) HKTB, | ||
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fa HKTSA, | ||
f func(A) HKTSB, | ||
) HKTSB { | ||
return F.Flow2( | ||
fa, | ||
F.Bind2nd(fchain, func(a P.Pair[A, S]) HKTB { | ||
return f(P.Head(a))(P.Tail(a)) | ||
}), | ||
) | ||
} | ||
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func Chain[ | ||
HKTSA ~func(S) HKTA, | ||
HKTSB ~func(S) HKTB, | ||
HKTA, | ||
HKTB, | ||
S, A any, | ||
]( | ||
fchain func(func(P.Pair[A, S]) HKTB) func(HKTA) HKTB, | ||
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f func(A) HKTSB, | ||
) func(HKTSA) HKTSB { | ||
mp := fchain(func(a P.Pair[A, S]) HKTB { | ||
return f(P.Head(a))(P.Tail(a)) | ||
}) | ||
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return func(fa HKTSA) HKTSB { | ||
return F.Flow2( | ||
fa, | ||
mp, | ||
) | ||
} | ||
} |
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// Copyright (c) 2024 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. | ||
|
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package generic | ||
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import ( | ||
ET "github.com/IBM/fp-go/either" | ||
ST "github.com/IBM/fp-go/internal/statet" | ||
P "github.com/IBM/fp-go/pair" | ||
G "github.com/IBM/fp-go/readerioeither/generic" | ||
) | ||
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func Right[ | ||
SRIOEA ~func(S) RIOEA, | ||
RIOEA ~func(R) IOEA, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
S, R, E, A any, | ||
](a A) SRIOEA { | ||
return ST.Of[SRIOEA]( | ||
G.Of[RIOEA], | ||
a, | ||
) | ||
} | ||
|
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func Of[ | ||
SRIOEA ~func(S) RIOEA, | ||
RIOEA ~func(R) IOEA, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
S, R, E, A any, | ||
](a A) SRIOEA { | ||
return Right[SRIOEA](a) | ||
} | ||
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func MonadMap[ | ||
SRIOEA ~func(S) RIOEA, | ||
SRIOEB ~func(S) RIOEB, | ||
RIOEA ~func(R) IOEA, | ||
RIOEB ~func(R) IOEB, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
IOEB ~func() ET.Either[E, P.Pair[B, S]], | ||
S, R, E, A, B any, | ||
](fa SRIOEA, f func(A) B) SRIOEB { | ||
return ST.MonadMap[SRIOEA, SRIOEB]( | ||
G.MonadMap[RIOEA, RIOEB], | ||
fa, | ||
f, | ||
) | ||
} | ||
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func Map[ | ||
SRIOEA ~func(S) RIOEA, | ||
SRIOEB ~func(S) RIOEB, | ||
RIOEA ~func(R) IOEA, | ||
RIOEB ~func(R) IOEB, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
IOEB ~func() ET.Either[E, P.Pair[B, S]], | ||
S, R, E, A, B any, | ||
](f func(A) B) func(SRIOEA) SRIOEB { | ||
return ST.Map[SRIOEA, SRIOEB]( | ||
G.Map[RIOEA, RIOEB], | ||
f, | ||
) | ||
} | ||
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func MonadChain[ | ||
SRIOEA ~func(S) RIOEA, | ||
SRIOEB ~func(S) RIOEB, | ||
RIOEA ~func(R) IOEA, | ||
RIOEB ~func(R) IOEB, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
IOEB ~func() ET.Either[E, P.Pair[B, S]], | ||
S, R, E, A, B any, | ||
](fa SRIOEA, f func(A) SRIOEB) SRIOEB { | ||
return ST.MonadChain[SRIOEA, SRIOEB]( | ||
G.MonadChain[RIOEA, RIOEB], | ||
fa, | ||
f, | ||
) | ||
} | ||
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func Chain[ | ||
SRIOEA ~func(S) RIOEA, | ||
SRIOEB ~func(S) RIOEB, | ||
RIOEA ~func(R) IOEA, | ||
RIOEB ~func(R) IOEB, | ||
IOEA ~func() ET.Either[E, P.Pair[A, S]], | ||
IOEB ~func() ET.Either[E, P.Pair[B, S]], | ||
S, R, E, A, B any, | ||
](f func(A) SRIOEB) func(SRIOEA) SRIOEB { | ||
return ST.Chain[SRIOEA, SRIOEB]( | ||
G.Chain[RIOEA, RIOEB], | ||
f, | ||
) | ||
} |
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// Copyright (c) 2024 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. | ||
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package statereaderioeither | ||
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import ( | ||
G "github.com/IBM/fp-go/statereaderioeither/generic" | ||
) | ||
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func Right[S, R, E, A any](a A) StateReaderIOEither[S, R, E, A] { | ||
return G.Right[StateReaderIOEither[S, R, E, A]](a) | ||
} | ||
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func Of[S, R, E, A any](a A) StateReaderIOEither[S, R, E, A] { | ||
return G.Of[StateReaderIOEither[S, R, E, A]](a) | ||
} | ||
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func MonadMap[S, R, E, A, B any](fa StateReaderIOEither[S, R, E, A], f func(A) B) StateReaderIOEither[S, R, E, B] { | ||
return G.MonadMap[StateReaderIOEither[S, R, E, A], StateReaderIOEither[S, R, E, B]](fa, f) | ||
} | ||
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func Map[S, R, E, A, B any](f func(A) B) func(StateReaderIOEither[S, R, E, A]) StateReaderIOEither[S, R, E, B] { | ||
return G.Map[StateReaderIOEither[S, R, E, A], StateReaderIOEither[S, R, E, B]](f) | ||
} | ||
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func MonadChain[S, R, E, A, B any](fa StateReaderIOEither[S, R, E, A], f func(A) StateReaderIOEither[S, R, E, B]) StateReaderIOEither[S, R, E, B] { | ||
return G.MonadChain[StateReaderIOEither[S, R, E, A], StateReaderIOEither[S, R, E, B]](fa, f) | ||
} | ||
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func Chain[S, R, E, A, B any](f func(A) StateReaderIOEither[S, R, E, B]) func(StateReaderIOEither[S, R, E, A]) StateReaderIOEither[S, R, E, B] { | ||
return G.Chain[StateReaderIOEither[S, R, E, A], StateReaderIOEither[S, R, E, B]](f) | ||
} |
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@@ -0,0 +1,24 @@ | ||
// Copyright (c) 2024 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. | ||
|
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package statereaderioeither | ||
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import ( | ||
P "github.com/IBM/fp-go/pair" | ||
RD "github.com/IBM/fp-go/reader" | ||
RIOE "github.com/IBM/fp-go/readerioeither" | ||
) | ||
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type StateReaderIOEither[S, R, E, A any] RD.Reader[S, RIOE.ReaderIOEither[R, E, P.Pair[A, S]]] |