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36 lines
1.0 KiB
Go
36 lines
1.0 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 generic
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import (
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L "github.com/IBM/fp-go/optics/lens"
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)
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// AsTraversal converts a lens to a traversal
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func AsTraversal[R ~func(func(A) HKTA) func(S) HKTS, S, A, HKTS, HKTA any](
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fmap func(HKTA, func(A) S) HKTS,
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) func(L.Lens[S, A]) R {
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return func(sa L.Lens[S, A]) R {
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return func(f func(a A) HKTA) func(S) HKTS {
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return func(s S) HKTS {
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return fmap(f(sa.Get(s)), func(a A) S {
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return sa.Set(a)(s)
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})
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}
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}
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}
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}
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