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87 lines (77 loc) · 2.75 KB
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// 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;
}
}
}