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60 lines
1.3 KiB
Go
60 lines
1.3 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 boolean
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import (
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EQ "github.com/IBM/fp-go/eq"
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M "github.com/IBM/fp-go/monoid"
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O "github.com/IBM/fp-go/ord"
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)
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var (
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// MonoidAny is the boolean [M.Monoid] under disjunction
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MonoidAny = M.MakeMonoid(
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func(l, r bool) bool {
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return l || r
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},
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false,
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)
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// MonoidAll is the boolean [M.Monoid] under conjuction
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MonoidAll = M.MakeMonoid(
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func(l, r bool) bool {
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return l && r
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},
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true,
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)
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// Eq is the equals predicate for boolean
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Eq = EQ.FromStrictEquals[bool]()
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// Ord is the strict ordering for boolean
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Ord = O.MakeOrd(func(l, r bool) int {
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if l {
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if r {
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return 0
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}
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return +1
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}
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if r {
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return -1
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}
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return 0
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}, func(l, r bool) bool {
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return l == r
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})
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)
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