fp-go/semigroup/alt.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 semigroup

func AltSemigroup[HKTA any, LAZYHKTA ~func() HKTA](
	falt func(HKTA, LAZYHKTA) HKTA,

) Semigroup[HKTA] {

	return MakeSemigroup(
		func(first, second HKTA) HKTA {
			return falt(first, func() HKTA { return second })
		},
	)
}