SystemCore_EnumerableDebugView.cs

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using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
 
namespace System.Linq;
 
internal sealed class SystemCore_EnumerableDebugView<T>
{
    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private readonly IEnumerable<T> _enumerable;
 
    [DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
    public T[] Items
    {
        get
        {
            T[] array = _enumerable.ToArray();
            if (array.Length == 0)
            {
                throw new SystemCore_EnumerableDebugViewEmptyException();
            }
            return array;
        }
    }
 
    public SystemCore_EnumerableDebugView(IEnumerable<T> enumerable)
    {
        if (enumerable == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.enumerable);
        }
        _enumerable = enumerable;
    }
}
internal sealed class SystemCore_EnumerableDebugView
{
    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private readonly IEnumerable _enumerable;
 
    [DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
    public object[] Items
    {
        get
        {
            List<object> list = new List<object>();
            foreach (object item in _enumerable)
            {
                list.Add(item);
            }
            if (list.Count == 0)
            {
                throw new SystemCore_EnumerableDebugViewEmptyException();
            }
            return list.ToArray();
        }
    }
 
    public SystemCore_EnumerableDebugView(IEnumerable enumerable)
    {
        if (enumerable == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.enumerable);
        }
        _enumerable = enumerable;
    }
}