InternalIPAddressCollection.cs

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using System.Collections.Generic;
 
namespace System.Net.NetworkInformation;
 
internal sealed class InternalIPAddressCollection : IPAddressCollection
{
    private readonly List<IPAddress> _addresses;
 
    public override int Count => _addresses.Count;
 
    public override bool IsReadOnly => true;
 
    public override IPAddress this[int index] => _addresses[index];
 
    internal InternalIPAddressCollection()
    {
        _addresses = new List<IPAddress>();
    }
 
    public override void CopyTo(IPAddress[] array, int offset)
    {
        _addresses.CopyTo(array, offset);
    }
 
    public override void Add(IPAddress address)
    {
        throw new NotSupportedException(System.SR.net_collection_readonly);
    }
 
    internal void InternalAdd(IPAddress address)
    {
        _addresses.Add(address);
    }
 
    public override bool Contains(IPAddress address)
    {
        return _addresses.Contains(address);
    }
 
    public override IEnumerator<IPAddress> GetEnumerator()
    {
        return _addresses.GetEnumerator();
    }
}