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34 lines
1.2 KiB
Go
34 lines
1.2 KiB
Go
// Copyright (c) 2023 IBM Corp.
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// All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package lens
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import (
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EM "github.com/IBM/fp-go/endomorphism"
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F "github.com/IBM/fp-go/function"
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I "github.com/IBM/fp-go/optics/iso"
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L "github.com/IBM/fp-go/optics/lens"
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)
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// IsoAsLens converts an `Iso` to a `Lens`
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func IsoAsLens[S, A any](sa I.Iso[S, A]) L.Lens[S, A] {
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return L.MakeLensCurried(sa.Get, F.Flow2(sa.ReverseGet, F.Flow2(F.Constant1[S, S], EM.Of[func(S) S])))
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}
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// IsoAsLensRef converts an `Iso` to a `Lens`
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func IsoAsLensRef[S, A any](sa I.Iso[*S, A]) L.Lens[*S, A] {
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return L.MakeLensRefCurried(sa.Get, F.Flow2(sa.ReverseGet, F.Flow2(F.Constant1[*S, *S], EM.Of[func(*S) *S])))
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}
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