StringCollection.cs

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using System.Runtime.CompilerServices;
 
namespace System.Collections.Specialized;
 
[Serializable]
[TypeForwardedFrom("System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public class StringCollection : IList, ICollection, IEnumerable
{
    private readonly ArrayList data = new ArrayList();
 
    public string? this[int index]
    {
        get
        {
            return (string)data[index];
        }
        set
        {
            data[index] = value;
        }
    }
 
    public int Count => data.Count;
 
    bool IList.IsReadOnly => false;
 
    bool IList.IsFixedSize => false;
 
    public bool IsReadOnly => false;
 
    public bool IsSynchronized => false;
 
    public object SyncRoot => data.SyncRoot;
 
    object? IList.this[int index]
    {
        get
        {
            return this[index];
        }
        set
        {
            this[index] = (string)value;
        }
    }
 
    public int Add(string? value)
    {
        return data.Add(value);
    }
 
    public void AddRange(string[] value)
    {
        if (value == null)
        {
            throw new ArgumentNullException("value");
        }
        data.AddRange(value);
    }
 
    public void Clear()
    {
        data.Clear();
    }
 
    public bool Contains(string? value)
    {
        return data.Contains(value);
    }
 
    public void CopyTo(string[] array, int index)
    {
        data.CopyTo(array, index);
    }
 
    public StringEnumerator GetEnumerator()
    {
        return new StringEnumerator(this);
    }
 
    public int IndexOf(string? value)
    {
        return data.IndexOf(value);
    }
 
    public void Insert(int index, string? value)
    {
        data.Insert(index, value);
    }
 
    public void Remove(string? value)
    {
        data.Remove(value);
    }
 
    public void RemoveAt(int index)
    {
        data.RemoveAt(index);
    }
 
    int IList.Add(object value)
    {
        return Add((string)value);
    }
 
    bool IList.Contains(object value)
    {
        return Contains((string)value);
    }
 
    int IList.IndexOf(object value)
    {
        return IndexOf((string)value);
    }
 
    void IList.Insert(int index, object value)
    {
        Insert(index, (string)value);
    }
 
    void IList.Remove(object value)
    {
        Remove((string)value);
    }
 
    void ICollection.CopyTo(Array array, int index)
    {
        data.CopyTo(array, index);
    }
 
    IEnumerator IEnumerable.GetEnumerator()
    {
        return data.GetEnumerator();
    }
}