mirror of
https://github.com/IBM/fp-go.git
synced 2025-08-10 22:31:32 +02:00
33 lines
1.1 KiB
Go
33 lines
1.1 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 record
|
|
|
|
import (
|
|
L "github.com/IBM/fp-go/optics/lens"
|
|
G "github.com/IBM/fp-go/optics/lens/record/generic"
|
|
O "github.com/IBM/fp-go/option"
|
|
)
|
|
|
|
// AtRecord returns a lens that focusses on a value in a record
|
|
func AtRecord[V any, K comparable](key K) L.Lens[map[K]V, O.Option[V]] {
|
|
return G.AtRecord[map[K]V](key)
|
|
}
|
|
|
|
// AtKey returns a `Lens` focused on a required key of a `ReadonlyRecord`
|
|
func AtKey[S any, V any, K comparable](key K) func(sa L.Lens[S, map[K]V]) L.Lens[S, O.Option[V]] {
|
|
return G.AtKey[map[K]V, S](key)
|
|
}
|