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42 lines
1.7 KiB
Go
42 lines
1.7 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 function
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import (
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G "github.com/IBM/fp-go/function/generic"
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)
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// Memoize converts a unary function into a unary function that caches the value depending on the parameter
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func Memoize[K comparable, T any](f func(K) T) func(K) T {
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return G.Memoize(f)
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}
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// ContramapMemoize converts a unary function into a unary function that caches the value depending on the parameter
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func ContramapMemoize[T, A any, K comparable](kf func(A) K) func(func(A) T) func(A) T {
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return G.ContramapMemoize[func(A) T](kf)
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}
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// CacheCallback converts a unary function into a unary function that caches the value depending on the parameter
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func CacheCallback[
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T, A any, K comparable](kf func(A) K, getOrCreate func(K, func() func() T) func() T) func(func(A) T) func(A) T {
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return G.CacheCallback[func(func(A) T) func(A) T](kf, getOrCreate)
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}
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// SingleElementCache creates a cache function for use with the [CacheCallback] method that has a maximum capacity of one single item
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func SingleElementCache[K comparable, T any]() func(K, func() func() T) func() T {
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return G.SingleElementCache[func() func() T, K]()
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}
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