using System;
using Cpp2IlInjected;

namespace System.Text
{
	/// <summary>Provides a buffer that allows a fallback handler to return an alternate string to an encoder when it cannot encode an input character.</summary>
	// Token: 0x020001D6 RID: 470
	[Token(Token = "0x20001D6")]
	public abstract class EncoderFallbackBuffer
	{
		/// <summary>When overridden in a derived class, prepares the fallback buffer to handle the specified input character.</summary>
		/// <param name="charUnknown">An input character.</param>
		/// <param name="index">The index position of the character in the input buffer.</param>
		/// <returns>
		///   <see langword="true" /> if the fallback buffer can process <paramref name="charUnknown" />; <see langword="false" /> if the fallback buffer ignores <paramref name="charUnknown" />.</returns>
		// Token: 0x0600119E RID: 4510
		[Token(Token = "0x600119E")]
		[Address(Slot = "4")]
		public abstract bool Fallback(char charUnknown, int index);

		/// <summary>When overridden in a derived class, prepares the fallback buffer to handle the specified surrogate pair.</summary>
		/// <param name="charUnknownHigh">The high surrogate of the input pair.</param>
		/// <param name="charUnknownLow">The low surrogate of the input pair.</param>
		/// <param name="index">The index position of the surrogate pair in the input buffer.</param>
		/// <returns>
		///   <see langword="true" /> if the fallback buffer can process <paramref name="charUnknownHigh" /> and <paramref name="charUnknownLow" />; <see langword="false" /> if the fallback buffer ignores the surrogate pair.</returns>
		// Token: 0x0600119F RID: 4511
		[Token(Token = "0x600119F")]
		[Address(Slot = "5")]
		public abstract bool Fallback(char charUnknownHigh, char charUnknownLow, int index);

		/// <summary>When overridden in a derived class, retrieves the next character in the fallback buffer.</summary>
		/// <returns>The next character in the fallback buffer.</returns>
		// Token: 0x060011A0 RID: 4512
		[Token(Token = "0x60011A0")]
		[Address(Slot = "6")]
		public abstract char GetNextChar();

		/// <summary>When overridden in a derived class, causes the next call to the <see cref="M:System.Text.EncoderFallbackBuffer.GetNextChar" /> method to access the data buffer character position that is prior to the current character position.</summary>
		/// <returns>
		///   <see langword="true" /> if the <see cref="M:System.Text.EncoderFallbackBuffer.MovePrevious" /> operation was successful; otherwise, <see langword="false" />.</returns>
		// Token: 0x060011A1 RID: 4513
		[Token(Token = "0x60011A1")]
		[Address(Slot = "7")]
		public abstract bool MovePrevious();

		/// <summary>When overridden in a derived class, gets the number of characters in the current <see cref="T:System.Text.EncoderFallbackBuffer" /> object that remain to be processed.</summary>
		/// <returns>The number of characters in the current fallback buffer that have not yet been processed.</returns>
		// Token: 0x170001BC RID: 444
		// (get) Token: 0x060011A2 RID: 4514
		[Token(Token = "0x170001BC")]
		public abstract int Remaining
		{
			[Token(Token = "0x60011A2")]
			[Address(Slot = "8")]
			get;
		}

		/// <summary>Initializes all data and state information pertaining to this fallback buffer.</summary>
		// Token: 0x060011A3 RID: 4515 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60011A3")]
		[Address(RVA = "0xD25760", Offset = "0xD24760", VA = "0x180D25760", Slot = "9")]
		public virtual void Reset()
		{
		}

		// Token: 0x060011A4 RID: 4516 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60011A4")]
		[Address(RVA = "0xD25740", Offset = "0xD24740", VA = "0x180D25740")]
		internal void InternalReset()
		{
		}

		// Token: 0x060011A5 RID: 4517 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60011A5")]
		[Address(RVA = "0xD25710", Offset = "0xD24710", VA = "0x180D25710")]
		internal unsafe void InternalInitialize(char* charStart, char* charEnd, EncoderNLS encoder, bool setEncoder)
		{
		}

		// Token: 0x060011A6 RID: 4518 RVA: 0x0000DD70 File Offset: 0x0000BF70
		[Token(Token = "0x60011A6")]
		[Address(RVA = "0xD256D0", Offset = "0xD246D0", VA = "0x180D256D0")]
		internal char InternalGetNextChar()
		{
			return '\0';
		}

		// Token: 0x060011A7 RID: 4519 RVA: 0x0000DD88 File Offset: 0x0000BF88
		[Token(Token = "0x60011A7")]
		[Address(RVA = "0xD25510", Offset = "0xD24510", VA = "0x180D25510", Slot = "10")]
		internal unsafe virtual bool InternalFallback(char ch, ref char* chars)
		{
			return default(bool);
		}

		// Token: 0x060011A8 RID: 4520 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60011A8")]
		[Address(RVA = "0xD25790", Offset = "0xD24790", VA = "0x180D25790")]
		internal void ThrowLastCharRecursive(int charRecursive)
		{
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Text.EncoderFallbackBuffer" /> class.</summary>
		// Token: 0x060011A9 RID: 4521 RVA: 0x00002050 File Offset: 0x00000250
		[Token(Token = "0x60011A9")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		protected EncoderFallbackBuffer()
		{
		}

		// Token: 0x0400090B RID: 2315
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400090B")]
		internal unsafe char* charStart;

		// Token: 0x0400090C RID: 2316
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400090C")]
		internal unsafe char* charEnd;

		// Token: 0x0400090D RID: 2317
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x400090D")]
		internal EncoderNLS encoder;

		// Token: 0x0400090E RID: 2318
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x400090E")]
		internal bool setEncoder;

		// Token: 0x0400090F RID: 2319
		[FieldOffset(Offset = "0x29")]
		[Token(Token = "0x400090F")]
		internal bool bUsedEncoder;

		// Token: 0x04000910 RID: 2320
		[FieldOffset(Offset = "0x2A")]
		[Token(Token = "0x4000910")]
		internal bool bFallingBack;

		// Token: 0x04000911 RID: 2321
		[FieldOffset(Offset = "0x2C")]
		[Token(Token = "0x4000911")]
		internal int iRecursionCount;

		// Token: 0x04000912 RID: 2322
		[Token(Token = "0x4000912")]
		private const int iMaxRecursion = 250;
	}
}