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41 lines
1.2 KiB
Go
41 lines
1.2 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 predicate
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func Not[A any](predicate func(A) bool) func(A) bool {
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return func(a A) bool {
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return !predicate((a))
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}
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}
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// And creates a predicate that combines other predicates via &&
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func And[A any](second func(A) bool) func(func(A) bool) func(A) bool {
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return func(first func(A) bool) func(A) bool {
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return func(a A) bool {
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return first(a) && second(a)
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}
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}
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}
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// Or creates a predicate that combines other predicates via ||
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func Or[A any](second func(A) bool) func(func(A) bool) func(A) bool {
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return func(first func(A) bool) func(A) bool {
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return func(a A) bool {
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return first(a) || second(a)
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}
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}
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}
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