// Copyright (c) 2023 - 2025 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 io import ( M "github.com/IBM/fp-go/v2/monoid" S "github.com/IBM/fp-go/v2/semigroup" ) // ApplySemigroup lifts a Semigroup[A] into a Semigroup[IO[A]]. // This allows combining IO computations using the semigroup operation on their results. // // Example: // // intAdd := semigroup.MakeSemigroup(func(a, b int) int { return a + b }) // ioAdd := io.ApplySemigroup(intAdd) // result := ioAdd.Concat(io.Of(1), io.Of(2)) // IO[3] func ApplySemigroup[A any](s S.Semigroup[A]) Semigroup[A] { return S.ApplySemigroup(MonadMap[A, func(A) A], MonadAp[A, A], s) } // ApplicativeMonoid lifts a Monoid[A] into a Monoid[IO[A]]. // This allows combining IO computations using the monoid operation on their results, // including an empty/identity element. // // Example: // // intAdd := monoid.MakeMonoid(func(a, b int) int { return a + b }, 0) // ioAdd := io.ApplicativeMonoid(intAdd) // result := ioAdd.Concat(io.Of(1), io.Of(2)) // IO[3] // empty := ioAdd.Empty() // IO[0] func ApplicativeMonoid[A any](m M.Monoid[A]) Monoid[A] { return M.ApplicativeMonoid(Of[A], MonadMap[A, func(A) A], MonadAp[A, A], m) }