| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You 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. |
| |
| using Apache.Arrow.Flatbuf; |
| using System; |
| using System.Collections.Generic; |
| using System.Text; |
| |
| namespace Apache.Arrow |
| { |
| internal static class Utility |
| { |
| public static IList<T> DeleteListElement<T>(IList<T> values, int index) |
| { |
| if (index < 0 || index >= values.Count) |
| { |
| throw new ArgumentException("Invalid index", nameof(index)); |
| } |
| |
| List<T> newList = new List<T>(values.Count - 1); |
| for (int i = 0; i < index; i++) |
| { |
| newList.Add(values[i]); |
| } |
| for (int i = index + 1; i < values.Count; i++) |
| { |
| newList.Add(values[i]); |
| } |
| |
| return newList; |
| } |
| |
| public static IList<T> AddListElement<T>(IList<T> values, int index, T newElement) |
| { |
| if (index < 0 || index > values.Count) |
| { |
| throw new ArgumentException("Invalid index", nameof(index)); |
| } |
| |
| List<T> newList = new List<T>(values.Count + 1); |
| for (int i = 0; i < index; i++) |
| { |
| newList.Add(values[i]); |
| } |
| newList.Add(newElement); |
| for (int i = index; i < values.Count; i++) |
| { |
| newList.Add(values[i]); |
| } |
| |
| return newList; |
| } |
| |
| public static IList<T> SetListElement<T>(IList<T> values, int index, T newElement) |
| { |
| if (index < 0 || index >= values.Count) |
| { |
| throw new ArgumentException("Invalid index", nameof(index)); |
| } |
| |
| List<T> newList = new List<T>(values.Count); |
| for (int i = 0; i < index; i++) |
| { |
| newList.Add(values[i]); |
| } |
| newList.Add(newElement); |
| for (int i = index + 1; i < values.Count; i++) |
| { |
| newList.Add(values[i]); |
| } |
| |
| return newList; |
| } |
| } |
| } |