using System;
using System.Collections.Generic;

namespace System.Linq
{
	// Token: 0x02000041 RID: 65
	internal class OrderedSequence<TElement, TKey> : OrderedEnumerable<TElement>
	{
		// Token: 0x060003A1 RID: 929 RVA: 0x00010F84 File Offset: 0x0000F184
		internal OrderedSequence(IEnumerable<TElement> source, Func<TElement, TKey> key_selector, IComparer<TKey> comparer, SortDirection direction)
			: base(source)
		{
			this.selector = key_selector;
			this.comparer = comparer ?? Comparer<TKey>.Default;
			this.direction = direction;
		}

		// Token: 0x060003A2 RID: 930 RVA: 0x00010FB0 File Offset: 0x0000F1B0
		internal OrderedSequence(OrderedEnumerable<TElement> parent, IEnumerable<TElement> source, Func<TElement, TKey> keySelector, IComparer<TKey> comparer, SortDirection direction)
			: this(source, keySelector, comparer, direction)
		{
			this.parent = parent;
		}

		// Token: 0x060003A3 RID: 931 RVA: 0x00010FC8 File Offset: 0x0000F1C8
		public override SortContext<TElement> CreateContext(SortContext<TElement> current)
		{
			SortContext<TElement> sortContext = new SortSequenceContext<TElement, TKey>(this.selector, this.comparer, this.direction, current);
			if (this.parent != null)
			{
				return this.parent.CreateContext(sortContext);
			}
			return sortContext;
		}

		// Token: 0x060003A4 RID: 932 RVA: 0x00011008 File Offset: 0x0000F208
		protected override IEnumerable<TElement> Sort(IEnumerable<TElement> source)
		{
			return QuickSort<TElement>.Sort(source, this.CreateContext(null));
		}

		// Token: 0x040000EC RID: 236
		private OrderedEnumerable<TElement> parent;

		// Token: 0x040000ED RID: 237
		private Func<TElement, TKey> selector;

		// Token: 0x040000EE RID: 238
		private IComparer<TKey> comparer;

		// Token: 0x040000EF RID: 239
		private SortDirection direction;
	}
}