using System;
using System.Runtime.CompilerServices;
using Cpp2IlInjected;

namespace System.Collections.Generic
{
	/// <summary>Provides a base class for implementations of the <see cref="T:System.Collections.Generic.IEqualityComparer`1" /> generic interface.</summary>
	/// <typeparam name="T">The type of objects to compare.</typeparam>
	// Token: 0x02000621 RID: 1569
	[Token(Token = "0x2000621")]
	[TypeDependency("System.Collections.Generic.ObjectEqualityComparer`1")]
	[Serializable]
	public abstract class EqualityComparer<T> : IEqualityComparer, IEqualityComparer<T>
	{
		/// <summary>Returns a default equality comparer for the type specified by the generic argument.</summary>
		/// <returns>The default instance of the <see cref="T:System.Collections.Generic.EqualityComparer`1" /> class for type <typeparamref name="T" />.</returns>
		// Token: 0x170007C7 RID: 1991
		// (get) Token: 0x060030D1 RID: 12497 RVA: 0x00002082 File Offset: 0x00000282
		[Token(Token = "0x170007C7")]
		public static EqualityComparer<T> Default
		{
			[Token(Token = "0x60030D1")]
			[Address(RVA = "0x2274810", Offset = "0x2273810", VA = "0x182274810")]
			get
			{
				return null;
			}
		}

		// Token: 0x060030D2 RID: 12498 RVA: 0x00002082 File Offset: 0x00000282
		[Token(Token = "0x60030D2")]
		[Address(RVA = "0x364A250", Offset = "0x3649250", VA = "0x18364A250")]
		private static EqualityComparer<T> CreateComparer()
		{
			return null;
		}

		/// <summary>When overridden in a derived class, determines whether two objects of type <typeparamref name="T" /> are equal.</summary>
		/// <param name="x">The first object to compare.</param>
		/// <param name="y">The second object to compare.</param>
		/// <returns>
		///   <see langword="true" /> if the specified objects are equal; otherwise, <see langword="false" />.</returns>
		// Token: 0x060030D3 RID: 12499
		[Token(Token = "0x60030D3")]
		[Address(Slot = "8")]
		public abstract bool Equals(T x, T y);

		/// <summary>When overridden in a derived class, serves as a hash function for the specified object for hashing algorithms and data structures, such as a hash table.</summary>
		/// <param name="obj">The object for which to get a hash code.</param>
		/// <returns>A hash code for the specified object.</returns>
		/// <exception cref="T:System.ArgumentNullException">The type of <paramref name="obj" /> is a reference type and <paramref name="obj" /> is <see langword="null" />.</exception>
		// Token: 0x060030D4 RID: 12500
		[Token(Token = "0x60030D4")]
		[Address(Slot = "9")]
		public abstract int GetHashCode(T obj);

		// Token: 0x060030D5 RID: 12501 RVA: 0x0001AA48 File Offset: 0x00018C48
		[Token(Token = "0x60030D5")]
		[Address(RVA = "0x35FB380", Offset = "0x35FA380", VA = "0x1835FB380", Slot = "10")]
		internal virtual int IndexOf(T[] array, T value, int startIndex, int count)
		{
			return 0;
		}

		// Token: 0x060030D6 RID: 12502 RVA: 0x0001AA60 File Offset: 0x00018C60
		[Token(Token = "0x60030D6")]
		[Address(RVA = "0x35FBFE0", Offset = "0x35FAFE0", VA = "0x1835FBFE0", Slot = "11")]
		internal virtual int LastIndexOf(T[] array, T value, int startIndex, int count)
		{
			return 0;
		}

		/// <summary>Returns a hash code for the specified object.</summary>
		/// <param name="obj">The <see cref="T:System.Object" /> for which a hash code is to be returned.</param>
		/// <returns>A hash code for the specified object.</returns>
		/// <exception cref="T:System.ArgumentNullException">The type of <paramref name="obj" /> is a reference type and <paramref name="obj" /> is <see langword="null" />.  
		///  -or-  
		///  <paramref name="obj" /> is of a type that cannot be cast to type <typeparamref name="T" />.</exception>
		// Token: 0x060030D7 RID: 12503 RVA: 0x0001AA78 File Offset: 0x00018C78
		[Token(Token = "0x60030D7")]
		[Address(RVA = "0x35FE720", Offset = "0x35FD720", VA = "0x1835FE720", Slot = "5")]
		int IEqualityComparer.GetHashCode(object obj)
		{
			return 0;
		}

		/// <summary>Determines whether the specified objects are equal.</summary>
		/// <param name="x">The first object to compare.</param>
		/// <param name="y">The second object to compare.</param>
		/// <returns>
		///   <see langword="true" /> if the specified objects are equal; otherwise, <see langword="false" />.</returns>
		/// <exception cref="T:System.ArgumentException">
		///   <paramref name="x" /> or <paramref name="y" /> is of a type that cannot be cast to type <typeparamref name="T" />.</exception>
		// Token: 0x060030D8 RID: 12504 RVA: 0x0001AA90 File Offset: 0x00018C90
		[Token(Token = "0x60030D8")]
		[Address(RVA = "0x35FCDC0", Offset = "0x35FBDC0", VA = "0x1835FCDC0", Slot = "4")]
		bool IEqualityComparer.Equals(object x, object y)
		{
			return default(bool);
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Collections.Generic.EqualityComparer`1" /> class.</summary>
		// Token: 0x060030D9 RID: 12505 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60030D9")]
		[Address(RVA = "0x1CC5E40", Offset = "0x1CC4E40", VA = "0x181CC5E40")]
		protected EqualityComparer()
		{
		}

		// Token: 0x04001B0F RID: 6927
		[Token(Token = "0x4001B0F")]
		private static EqualityComparer<T> defaultComparer;
	}
}