using System;

namespace System.Text
{
	/// <summary>The exception that is thrown when a decoder fallback operation fails. This class cannot be inherited.</summary>
	/// <filterpriority>2</filterpriority>
	// Token: 0x020005E6 RID: 1510
	[Serializable]
	public sealed class DecoderFallbackException : ArgumentException
	{
		/// <summary>Initializes a new instance of the <see cref="T:System.Text.DecoderFallbackException" /> class. </summary>
		// Token: 0x060036F7 RID: 14071 RVA: 0x000BC7FC File Offset: 0x000BA9FC
		public DecoderFallbackException()
			: this(null)
		{
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Text.DecoderFallbackException" /> class. A parameter specifies the error message.</summary>
		/// <param name="message">An error message.</param>
		// Token: 0x060036F8 RID: 14072 RVA: 0x000BC808 File Offset: 0x000BAA08
		public DecoderFallbackException(string message)
		{
			this.index = -1;
			base..ctor(message);
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Text.DecoderFallbackException" /> class. Parameters specify the error message and the inner exception that is the cause of this exception.</summary>
		/// <param name="message">An error message.</param>
		/// <param name="innerException">The exception that caused this exception.</param>
		// Token: 0x060036F9 RID: 14073 RVA: 0x000BC818 File Offset: 0x000BAA18
		public DecoderFallbackException(string message, Exception innerException)
		{
			this.index = -1;
			base..ctor(message, innerException);
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Text.DecoderFallbackException" /> class. Parameters specify the error message, the array of bytes being decoded, and the index of the byte that cannot be decoded.</summary>
		/// <param name="message">An error message.</param>
		/// <param name="bytesUnknown">The input byte array.</param>
		/// <param name="index">The index position in <paramref name="bytesUnknown" /> of the byte that cannot be decoded.</param>
		// Token: 0x060036FA RID: 14074 RVA: 0x000BC82C File Offset: 0x000BAA2C
		public DecoderFallbackException(string message, byte[] bytesUnknown, int index)
		{
			this.index = -1;
			base..ctor(message);
			this.bytes_unknown = bytesUnknown;
			this.index = index;
		}

		/// <summary>Gets the input byte sequence that caused the exception.</summary>
		/// <returns>The input byte array that cannot be decoded. </returns>
		/// <filterpriority>2</filterpriority>
		// Token: 0x17000ABE RID: 2750
		// (get) Token: 0x060036FB RID: 14075 RVA: 0x000BC84C File Offset: 0x000BAA4C
		[MonoTODO]
		public byte[] BytesUnknown
		{
			get
			{
				return this.bytes_unknown;
			}
		}

		/// <summary>Gets the index position in the input byte sequence of the byte that caused the exception.</summary>
		/// <returns>The index position in the input byte array of the byte that cannot be decoded. The index position is zero-based. </returns>
		/// <filterpriority>1</filterpriority>
		// Token: 0x17000ABF RID: 2751
		// (get) Token: 0x060036FC RID: 14076 RVA: 0x000BC854 File Offset: 0x000BAA54
		[MonoTODO]
		public int Index
		{
			get
			{
				return this.index;
			}
		}

		// Token: 0x0400166F RID: 5743
		private const string defaultMessage = "Failed to decode the input byte sequence to Unicode characters.";

		// Token: 0x04001670 RID: 5744
		private byte[] bytes_unknown;

		// Token: 0x04001671 RID: 5745
		private int index;
	}
}