using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using BestHTTP.Decompression.Crc;
using BestHTTP.Extensions;
using Cpp2IlInjected;

namespace BestHTTP.Decompression.Zlib
{
	// Token: 0x020019DC RID: 6620
	[Token(Token = "0x20019DC")]
	[StructLayout(3)]
	internal class ZlibBaseStream : Stream
	{
		// Token: 0x17001CB7 RID: 7351
		// (get) Token: 0x0600B1E5 RID: 45541 RVA: 0x0029C674 File Offset: 0x0029A874
		[Token(Token = "0x17001CB7")]
		internal int Crc32
		{
			[Token(Token = "0x600B1E5")]
			[Address(RVA = "0x1E70B70", Offset = "0x1E6F570", VA = "0x181E70B70")]
			get
			{
				CRC32 crc = this.crc;
				if (crc != 0)
				{
					return crc.Crc32Result;
				}
				return 0;
			}
		}

		// Token: 0x0600B1E6 RID: 45542 RVA: 0x0029C694 File Offset: 0x0029A894
		[Token(Token = "0x600B1E6")]
		[Address(RVA = "0x1E6FFA0", Offset = "0x1E6E9A0", VA = "0x181E6FFA0")]
		public ZlibBaseStream(Stream stream, CompressionMode compressionMode, CompressionLevel level, ZlibStreamFlavor flavor, bool leaveOpen)
		{
			byte[] array = new byte[1];
			this._buf1 = array;
			base..ctor();
			this._leaveOpen = false;
			this._flushMode = (FlushType)((ulong)0L);
			this._stream = stream;
			this._compressionMode = compressionMode;
			this._flavor = (ZlibStreamFlavor)0;
			this._level = level;
			this.windowBitsMax = (int)((ulong)15L);
			CRC32 crc = new CRC32();
			this.crc = crc;
		}

		// Token: 0x0600B1E7 RID: 45543 RVA: 0x0029C714 File Offset: 0x0029A914
		[Token(Token = "0x600B1E7")]
		[Address(RVA = "0x1E70090", Offset = "0x1E6EA90", VA = "0x181E70090")]
		public ZlibBaseStream(Stream stream, CompressionMode compressionMode, CompressionLevel level, ZlibStreamFlavor flavor, bool leaveOpen, int windowBits)
		{
			byte[] array = new byte[1];
			this._buf1 = array;
			base..ctor();
			this._leaveOpen = false;
			this.windowBitsMax = 0;
			this._flushMode = (FlushType)((ulong)0L);
			this._stream = stream;
			this._compressionMode = compressionMode;
			this._flavor = (ZlibStreamFlavor)0;
			this._level = level;
			CRC32 crc = new CRC32();
			this.crc = crc;
		}

		// Token: 0x17001CB8 RID: 7352
		// (get) Token: 0x0600B1E8 RID: 45544 RVA: 0x0029C790 File Offset: 0x0029A990
		[Token(Token = "0x17001CB8")]
		protected internal bool _wantCompress
		{
			[Token(Token = "0x600B1E8")]
			[Address(RVA = "0xE380F0", Offset = "0xE36AF0", VA = "0x180E380F0")]
			get
			{
				return this._compressionMode == CompressionMode.Compress;
			}
		}

		// Token: 0x17001CB9 RID: 7353
		// (get) Token: 0x0600B1E9 RID: 45545 RVA: 0x0029C7A8 File Offset: 0x0029A9A8
		[Token(Token = "0x17001CB9")]
		private ZlibCodec z
		{
			[Token(Token = "0x600B1E9")]
			[Address(RVA = "0x1E70C60", Offset = "0x1E6F660", VA = "0x181E70C60")]
			get
			{
				if (this._z == (ulong)0L)
				{
					bool flag = this._flavor == ZlibStreamFlavor.ZLIB;
					ZlibCodec zlibCodec = new ZlibCodec();
					zlibCodec.CompressLevel = (CompressionLevel)((ulong)6L);
					zlibCodec.WindowBits = (int)((ulong)15L);
					this._z = zlibCodec;
					if (this._compressionMode != CompressionMode.Decompress)
					{
						CompressionStrategy strategy = this.Strategy;
						zlibCodec.Strategy = strategy;
						ZlibCodec z = this._z;
						int num = this.windowBitsMax;
						CompressionLevel level = this._level;
						z.WindowBits = num;
						z.CompressLevel = level;
						int num2 = z._InternalInitializeDeflate(flag);
					}
					int num3 = this.windowBitsMax;
					int num4 = zlibCodec.InitializeInflate(num3, flag);
				}
				return this._z;
			}
		}

		// Token: 0x17001CBA RID: 7354
		// (get) Token: 0x0600B1EA RID: 45546 RVA: 0x0029C858 File Offset: 0x0029AA58
		[Token(Token = "0x17001CBA")]
		private byte[] workingBuffer
		{
			[Token(Token = "0x600B1EA")]
			[Address(RVA = "0x1E70BE0", Offset = "0x1E6F5E0", VA = "0x181E70BE0")]
			get
			{
				if (this._workingBuffer == (ulong)0L)
				{
					byte[] array = VariableSizedBufferPool.Get((long)this._bufferSize, true);
					this._workingBuffer = array;
				}
				return this._workingBuffer;
			}
		}

		// Token: 0x0600B1EB RID: 45547 RVA: 0x0029C88C File Offset: 0x0029AA8C
		[Token(Token = "0x600B1EB")]
		[Address(RVA = "0x1E6F720", Offset = "0x1E6E120", VA = "0x181E6F720", Slot = "29")]
		public override void Write(byte[] buffer, int offset, int count)
		{
			int num;
			ZlibCodec z3;
			do
			{
				CRC32 crc = this.crc;
				num = 0;
				if (crc != 0)
				{
					crc.SlurpBlock(buffer, offset, count);
				}
				ZlibBaseStream.StreamMode streamMode = this._streamMode;
				if (streamMode != ZlibBaseStream.StreamMode.Undefined && streamMode != ZlibBaseStream.StreamMode.Writer)
				{
					goto IL_14C;
				}
				this._streamMode = (ZlibBaseStream.StreamMode)num;
				if (count == 0)
				{
					return;
				}
				this.z.InputBuffer = buffer;
				this._z.NextIn = offset;
				this._z.AvailableBytesIn = count;
				ZlibCodec z = this._z;
				if (this._workingBuffer == num)
				{
					ulong num2;
					byte[] array = VariableSizedBufferPool.Get((long)this._bufferSize, num2 != 0UL);
					this._workingBuffer = array;
				}
				byte[] workingBuffer = this._workingBuffer;
				z.OutputBuffer = workingBuffer;
				this._z.NextOut = num;
				byte[] workingBuffer2 = this._workingBuffer;
				ZlibCodec z2 = this._z;
				int length = workingBuffer2.Length;
				z2.AvailableBytesOut = length;
				z3 = this._z;
				FlushType flushMode = this._flushMode;
				if (this._compressionMode == (CompressionMode)num && z3.dstate == 0)
				{
					goto IL_158;
				}
			}
			while (z3.istate == 0);
			int num3;
			if (num3 > 1)
			{
				goto IL_164;
			}
			byte[] workingBuffer3 = this._workingBuffer;
			ZlibCodec z4 = this._z;
			int num4 = this._stream.ReadByte();
			int availableBytesIn = this._z.AvailableBytesIn;
			if (availableBytesIn != 0)
			{
			}
			if (this._flavor != ZlibStreamFlavor.GZIP || this._compressionMode == (CompressionMode)num || availableBytesIn == 8)
			{
			}
			while (num == 0)
			{
			}
			return;
			IL_14C:
			ZlibException ex = new ZlibException("Cannot Write after Reading.");
			IL_158:
			ZlibException ex2 = new ZlibException("No Deflate State!");
			IL_164:
			throw new NullReferenceException();
		}

		// Token: 0x0600B1EC RID: 45548 RVA: 0x0029CA0C File Offset: 0x0029AC0C
		[Token(Token = "0x600B1EC")]
		[Address(RVA = "0x1E70300", Offset = "0x1E6ED00", VA = "0x181E70300")]
		private void finish()
		{
			/*
An exception occurred when decompiling this method (0600B1EC)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.Decompression.Zlib.ZlibBaseStream::finish()

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_297:
	stloc:ZlibException(var_47_2AA, newobj:ZlibException(ZlibException::.ctor, call:string(string::Format, ldstr:string("Bad size in GZIP trailer. (actual({0})!=expected({1}))"), ldloc:ZlibException[exp:object](var_46), ldloc:ZlibException[exp:object](var_46))))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600B1ED RID: 45549 RVA: 0x0029CCC4 File Offset: 0x0029AEC4
		[Token(Token = "0x600B1ED")]
		[Address(RVA = "0x1E70180", Offset = "0x1E6EB80", VA = "0x181E70180")]
		private void end()
		{
			/*
An exception occurred when decompiling this method (0600B1ED)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.Decompression.Zlib.ZlibBaseStream::end()

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_8D:
	stloc:ZlibException(var_7_97, newobj:ZlibException(ZlibException::.ctor, ldstr:string("No Deflate State!")))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600B1EE RID: 45550 RVA: 0x0029CD6C File Offset: 0x0029AF6C
		[Token(Token = "0x600B1EE")]
		[Address(RVA = "0x1E6EDA0", Offset = "0x1E6D7A0", VA = "0x181E6EDA0", Slot = "15")]
		public override void Close()
		{
			/*
An exception occurred when decompiling this method (0600B1EE)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.Decompression.Zlib.ZlibBaseStream::Close()

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_BA:
	stloc:ZlibException(var_6_C4, newobj:ZlibException(ZlibException::.ctor, ldstr:string("No Deflate State!")))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600B1EF RID: 45551 RVA: 0x0029CE40 File Offset: 0x0029B040
		[Token(Token = "0x600B1EF")]
		[Address(RVA = "0xE35510", Offset = "0xE33F10", VA = "0x180E35510", Slot = "17")]
		public override void Flush()
		{
			bool canRead = this._stream.CanRead;
		}

		// Token: 0x0600B1F0 RID: 45552 RVA: 0x0029CE60 File Offset: 0x0029B060
		[Token(Token = "0x600B1F0")]
		[Address(RVA = "0x1E6F690", Offset = "0x1E6E090", VA = "0x181E6F690", Slot = "25")]
		public override long Seek(long offset, SeekOrigin origin)
		{
			/*
An exception occurred when decompiling this method (0600B1F0)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int64 BestHTTP.Decompression.Zlib.ZlibBaseStream::Seek(System.Int64,System.IO.SeekOrigin)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	Block_0:
	stloc:NotImplementedException(var_0_05, newobj:NotImplementedException(NotImplementedException::.ctor))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600B1F1 RID: 45553 RVA: 0x0029CE74 File Offset: 0x0029B074
		[Token(Token = "0x600B1F1")]
		[Address(RVA = "0x1E6F6E0", Offset = "0x1E6E0E0", VA = "0x181E6F6E0", Slot = "26")]
		public override void SetLength(long value)
		{
			Stream stream = this._stream;
			this.nomoreinput = false;
		}

		// Token: 0x0600B1F2 RID: 45554 RVA: 0x0029CE98 File Offset: 0x0029B098
		[Token(Token = "0x600B1F2")]
		[Address(RVA = "0x1E6EFD0", Offset = "0x1E6D9D0", VA = "0x181E6EFD0")]
		private string ReadZeroTerminatedString()
		{
			List<byte> list = new List();
			Stream stream = this._stream;
			byte b = this._buf1[0];
			list.Add(b);
			byte[] array = list.ToArray();
			return GZipStream.iso8859dash1.GetString(array);
		}

		// Token: 0x0600B1F3 RID: 45555 RVA: 0x0029CEE0 File Offset: 0x0029B0E0
		[Token(Token = "0x600B1F3")]
		[Address(RVA = "0x1E6FAC0", Offset = "0x1E6E4C0", VA = "0x181E6FAC0")]
		private int _ReadAndValidateGzipHeader()
		{
			byte[] array;
			do
			{
				uint num;
				ulong num2;
				array = VariableSizedBufferPool.Get((long)num, num2 != 0UL);
				Stream stream = this._stream;
				int length = array.Length;
			}
			while ("{il2cpp array field local5->}" != (ulong)31L || "{il2cpp array field local5->}" != (ulong)139L || "{il2cpp array field local5->}" != (ulong)8L);
			int num3 = BitConverter.ToInt32(array, 4);
			DateTime unixEpoch = GZipStream._unixEpoch;
			int length2 = array.Length;
			if ("{il2cpp array field local5->}" != (ulong)4L)
			{
				Stream stream2 = this._stream;
				int length3 = array.Length;
				byte b = array[0];
				byte b2 = array[0];
				uint num4;
				byte b3 = (byte)((uint)b * num4);
				b3 += b2;
				Stream stream3 = this._stream;
			}
			if ("{il2cpp array field local5->}" != (ulong)8L)
			{
				string text = this.ReadZeroTerminatedString();
				this._GzipFileName = text;
				int length4 = array.Length;
			}
			if ("{il2cpp array field local5->}" != (ulong)16L)
			{
				string text2 = this.ReadZeroTerminatedString();
				this._GzipComment = text2;
				int length5 = array.Length;
			}
			if ("{il2cpp array field local5->}" != (ulong)2L)
			{
			}
			VariableSizedBufferPool.Release(array);
			VariableSizedBufferPool.Release(array);
			throw new NullReferenceException();
		}

		// Token: 0x0600B1F4 RID: 45556 RVA: 0x0029CFE4 File Offset: 0x0029B1E4
		[Token(Token = "0x600B1F4")]
		[Address(RVA = "0x1E6F160", Offset = "0x1E6DB60", VA = "0x181E6F160", Slot = "27")]
		public override int Read(byte[] buffer, int offset, int count)
		{
			int num;
			int num4;
			bool flag;
			for (;;)
			{
				num = 0;
				if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
				{
					this._stream.Dispose();
					this._streamMode = (ZlibBaseStream.StreamMode)((ulong)1L);
					this.z.AvailableBytesIn = num;
					if (this._flavor == ZlibStreamFlavor.GZIP)
					{
						int num2 = this._ReadAndValidateGzipHeader();
						this._gzipHeaderByteCount = num2;
						if (num2 == 0)
						{
							goto IL_1D9;
						}
					}
				}
				if (this._streamMode != ZlibBaseStream.StreamMode.Reader || count == 0 || ((this.nomoreinput ? 1 : 0) != num && this._compressionMode == (CompressionMode)num))
				{
					goto IL_1D9;
				}
				if (buffer != 0)
				{
					this._z.OutputBuffer = buffer;
					this._z.NextOut = offset;
					this._z.AvailableBytesOut = count;
					ZlibCodec z = this._z;
					byte[] workingBuffer = this.workingBuffer;
					z.InputBuffer = workingBuffer;
					ZlibCodec z2 = this._z;
					ZlibCodec z4;
					if (z2.AvailableBytesIn == num && (this.nomoreinput ? 1 : 0) == num)
					{
						z2.NextIn = num;
						byte[] workingBuffer2 = this._workingBuffer;
						ZlibCodec z3 = this._z;
						Stream stream = this._stream;
						int length = workingBuffer2.Length;
						z4 = this._z;
						if (z4.AvailableBytesIn == num)
						{
							this.nomoreinput = true;
						}
					}
					FlushType flushMode = this._flushMode;
					if (this._compressionMode == (CompressionMode)num)
					{
						int num3 = z4.Deflate(flushMode);
					}
					num4 = z4.Inflate(flushMode);
					flag = this.nomoreinput;
					if (flag && num4 == -5)
					{
						goto IL_1D9;
					}
					if (num4 <= 1)
					{
						break;
					}
				}
			}
			ZlibCodec z5;
			if ((!flag && num4 != 1) || this._z.AvailableBytesOut != count)
			{
				z5 = this._z;
				if (z5.AvailableBytesOut <= num || flag || num4 == 0)
				{
				}
			}
			if (z5.AvailableBytesOut <= num || !flag || this._compressionMode != (CompressionMode)num || z5.Deflate(FlushType.Finish) <= 1)
			{
				ZlibCodec z6 = this._z;
				CRC32 crc = this.crc;
				if (crc != 0)
				{
					crc.SlurpBlock(buffer, offset, count);
				}
				return count;
			}
			goto IL_1F1;
			IL_1D9:
			ZlibException ex = new ZlibException("Cannot Read after Writing.");
			ZlibException ex2 = new ZlibException("The stream is not readable.");
			IL_1F1:
			throw new NullReferenceException();
		}

		// Token: 0x17001CBB RID: 7355
		// (get) Token: 0x0600B1F5 RID: 45557 RVA: 0x0029D1FC File Offset: 0x0029B3FC
		[Token(Token = "0x17001CBB")]
		public override bool CanRead
		{
			[Token(Token = "0x600B1F5")]
			[Address(RVA = "0xE38010", Offset = "0xE36A10", VA = "0x180E38010", Slot = "7")]
			get
			{
				return this._stream.CanRead;
			}
		}

		// Token: 0x17001CBC RID: 7356
		// (get) Token: 0x0600B1F6 RID: 45558 RVA: 0x0029D21C File Offset: 0x0029B41C
		[Token(Token = "0x17001CBC")]
		public override bool CanSeek
		{
			[Token(Token = "0x600B1F6")]
			[Address(RVA = "0xE38040", Offset = "0xE36A40", VA = "0x180E38040", Slot = "8")]
			get
			{
				return this._stream.CanRead;
			}
		}

		// Token: 0x17001CBD RID: 7357
		// (get) Token: 0x0600B1F7 RID: 45559 RVA: 0x0029D23C File Offset: 0x0029B43C
		[Token(Token = "0x17001CBD")]
		public override bool CanWrite
		{
			[Token(Token = "0x600B1F7")]
			[Address(RVA = "0xE38070", Offset = "0xE36A70", VA = "0x180E38070", Slot = "9")]
			get
			{
				return this._stream.CanRead;
			}
		}

		// Token: 0x17001CBE RID: 7358
		// (get) Token: 0x0600B1F8 RID: 45560 RVA: 0x0029D25C File Offset: 0x0029B45C
		[Token(Token = "0x17001CBE")]
		public override long Length
		{
			[Token(Token = "0x600B1F8")]
			[Address(RVA = "0xE365E0", Offset = "0xE34FE0", VA = "0x180E365E0", Slot = "10")]
			get
			{
				bool canRead = this._stream.CanRead;
				throw new NullReferenceException();
			}
		}

		// Token: 0x17001CBF RID: 7359
		// (get) Token: 0x0600B1F9 RID: 45561 RVA: 0x0029D27C File Offset: 0x0029B47C
		// (set) Token: 0x0600B1FA RID: 45562 RVA: 0x0029D290 File Offset: 0x0029B490
		[Token(Token = "0x17001CBF")]
		public override long Position
		{
			[Token(Token = "0x600B1F9")]
			[Address(RVA = "0x1E70B90", Offset = "0x1E6F590", VA = "0x181E70B90", Slot = "11")]
			get
			{
				/*
An exception occurred when decompiling this method (0600B1F9)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int64 BestHTTP.Decompression.Zlib.ZlibBaseStream::get_Position()

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	Block_0:
	stloc:NotImplementedException(var_0_05, newobj:NotImplementedException(NotImplementedException::.ctor))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
			}
			[Token(Token = "0x600B1FA")]
			[Address(RVA = "0x1E70D30", Offset = "0x1E6F730", VA = "0x181E70D30", Slot = "12")]
			set
			{
				/*
An exception occurred when decompiling this method (0600B1FA)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.Decompression.Zlib.ZlibBaseStream::set_Position(System.Int64)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	Block_0:
	stloc:NotImplementedException(var_0_05, newobj:NotImplementedException(NotImplementedException::.ctor))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
			}
		}

		// Token: 0x04007561 RID: 30049
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4007561")]
		protected internal ZlibCodec _z;

		// Token: 0x04007562 RID: 30050
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4007562")]
		protected internal ZlibBaseStream.StreamMode _streamMode = (ZlibBaseStream.StreamMode)((ulong)2L);

		// Token: 0x04007563 RID: 30051
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x34")]
		[Token(Token = "0x4007563")]
		protected internal FlushType _flushMode;

		// Token: 0x04007564 RID: 30052
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4007564")]
		protected internal ZlibStreamFlavor _flavor;

		// Token: 0x04007565 RID: 30053
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x3C")]
		[Token(Token = "0x4007565")]
		protected internal CompressionMode _compressionMode;

		// Token: 0x04007566 RID: 30054
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x4007566")]
		protected internal CompressionLevel _level;

		// Token: 0x04007567 RID: 30055
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x44")]
		[Token(Token = "0x4007567")]
		protected internal bool _leaveOpen;

		// Token: 0x04007568 RID: 30056
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x48")]
		[Token(Token = "0x4007568")]
		protected internal byte[] _workingBuffer;

		// Token: 0x04007569 RID: 30057
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x50")]
		[Token(Token = "0x4007569")]
		protected internal int _bufferSize = (int)((ulong)16384L);

		// Token: 0x0400756A RID: 30058
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x54")]
		[Token(Token = "0x400756A")]
		protected internal int windowBitsMax;

		// Token: 0x0400756B RID: 30059
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x58")]
		[Token(Token = "0x400756B")]
		protected internal byte[] _buf1;

		// Token: 0x0400756C RID: 30060
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x60")]
		[Token(Token = "0x400756C")]
		protected internal Stream _stream;

		// Token: 0x0400756D RID: 30061
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x68")]
		[Token(Token = "0x400756D")]
		protected internal CompressionStrategy Strategy;

		// Token: 0x0400756E RID: 30062
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x70")]
		[Token(Token = "0x400756E")]
		private CRC32 crc;

		// Token: 0x0400756F RID: 30063
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x78")]
		[Token(Token = "0x400756F")]
		protected internal string _GzipFileName;

		// Token: 0x04007570 RID: 30064
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x80")]
		[Token(Token = "0x4007570")]
		protected internal string _GzipComment;

		// Token: 0x04007571 RID: 30065
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x88")]
		[Token(Token = "0x4007571")]
		protected internal DateTime _GzipMtime;

		// Token: 0x04007572 RID: 30066
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x90")]
		[Token(Token = "0x4007572")]
		protected internal int _gzipHeaderByteCount;

		// Token: 0x04007573 RID: 30067
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x94")]
		[Token(Token = "0x4007573")]
		private bool nomoreinput;

		// Token: 0x020019DD RID: 6621
		[Token(Token = "0x20019DD")]
		internal enum StreamMode
		{
			// Token: 0x04007575 RID: 30069
			[Token(Token = "0x4007575")]
			Writer,
			// Token: 0x04007576 RID: 30070
			[Token(Token = "0x4007576")]
			Reader,
			// Token: 0x04007577 RID: 30071
			[Token(Token = "0x4007577")]
			Undefined
		}
	}
}