fp-go/monoid/apply.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 monoid

import (
	S "github.com/IBM/fp-go/semigroup"
)

func ApplicativeMonoid[A, HKTA, HKTFA any](
	_of func(A) HKTA,
	_map func(HKTA, func(A) func(A) A) HKTFA,
	_ap func(HKTFA, HKTA) HKTA,

	m Monoid[A],
) Monoid[HKTA] {

	return MakeMonoid(
		S.ApplySemigroup[A](_map, _ap, m).Concat,
		_of(m.Empty()),
	)
}