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42 lines
1.0 KiB
Go
42 lines
1.0 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 generic
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import (
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"sort"
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O "github.com/IBM/fp-go/ord"
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)
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// Sort implements a stable sort on the array given the provided ordering
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func Sort[GA ~[]T, T any](ord O.Ord[T]) func(ma GA) GA {
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return func(ma GA) GA {
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// nothing to sort
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l := len(ma)
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if l < 2 {
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return ma
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}
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// copy
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cpy := make(GA, l)
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copy(cpy, ma)
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sort.Slice(cpy, func(i, j int) bool {
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return ord.Compare(cpy[i], cpy[j]) < 0
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})
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return cpy
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}
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}
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