InflateBlocks.cs

Go to the documentation of this file.

using System;
 
namespace Ionic.Zlib
{
    // Token: 0x02000045 RID: 69
    internal sealed class InflateBlocks
    {
        // Token: 0x0600037A RID: 890 RVA: 0x0000CA84 File Offset: 0x0000AC84
        internal InflateBlocks(ZlibCodec codec, object checkfn, int w)
        {
            this._codec = codec;
            this.end = w;
            this.checkfn = checkfn;
            uint num = this.Reset();
        }
 
        // Token: 0x0600037B RID: 891 RVA: 0x0000CAB4 File Offset: 0x0000ACB4
        internal uint Reset()
        {
            uint num = this.check;
            if (this.checkfn != null)
            {
                ZlibCodec codec = this._codec;
                this.check = 1U;
                codec._Adler32 = 1U;
            }
            return num;
        }
 
        // Token: 0x0600037C RID: 892 RVA: 0x0000CAE8 File Offset: 0x0000ACE8
        internal int Process(int r)
        {
            ZlibCodec codec = this._codec;
            int num = this.readAt;
            int num2 = this.bitk;
            int[] array = this.hufts;
            int nextIn = codec.NextIn;
            long totalBytesIn = codec.TotalBytesIn;
            return "invalid stored block lengths";
        }
 
        // Token: 0x0600037D RID: 893 RVA: 0x0000D244 File Offset: 0x0000B444
        internal void Free()
        {
            uint num = this.Reset();
        }
 
        // Token: 0x0600037E RID: 894 RVA: 0x0000D258 File Offset: 0x0000B458
        internal void SetDictionary(byte[] d, int start, int n)
        {
            byte[] array = this.window;
            long num = 0L;
            Array.Copy(d, start, array, (int)num, n);
            this.readAt = n;
        }
 
        // Token: 0x0600037F RID: 895 RVA: 0x0000D280 File Offset: 0x0000B480
        internal int SyncPoint()
        {
            /*
An exception occurred when decompiling this method (0600037F)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 Ionic.Zlib.InflateBlocks::SyncPoint()
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    Block_0:
    stloc:InflateBlockMode(var_0_06, ldfld:InflateBlockMode(InflateBlocks::mode, ldloc:InflateBlocks(this)))
}
 
   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 1683
*/;
        }
 
        // Token: 0x06000380 RID: 896 RVA: 0x0000D294 File Offset: 0x0000B494
        internal int Flush(int r)
        {
            long num = 0L;
            if (num != 0L)
            {
                int num2 = this.readAt;
            }
            int num3 = this.readAt;
            int num4 = 112;
            if (num4 != 0)
            {
                ZlibCodec codec = this._codec;
                int availableBytesOut = codec.AvailableBytesOut;
                long totalBytesOut = codec.TotalBytesOut;
                codec.AvailableBytesOut = num4;
                codec.TotalBytesOut = (long)availableBytesOut;
                object obj = this.checkfn;
                ZlibCodec codec2;
                if (obj != null)
                {
                    uint num5 = this.check;
                    byte[] array = this.window;
                    if (obj == null)
                    {
                    }
                    uint num6;
                    this.check = num6;
                    codec._Adler32 = num6;
                    int num7 = this.readAt;
                    codec2 = this._codec;
                }
                byte[] array2 = this.window;
                byte[] outputBuffer = codec2.OutputBuffer;
                int nextOut = codec2.NextOut;
                ZlibCodec codec3 = this._codec;
                int nextOut2 = codec3.NextOut;
                codec3.NextOut = nextOut2;
                int num8 = this.readAt;
                this.readAt = nextOut2;
                if (num == 0L)
                {
                    int num9 = this.end;
                    int num10 = this.writeAt;
                }
                return r;
            }
            return r;
        }
 
        // Token: 0x06000381 RID: 897 RVA: 0x0000D38C File Offset: 0x0000B58C
        // Note: this type is marked as 'beforefieldinit'.
        static InflateBlocks()
        {
        }
 
        // Token: 0x04000239 RID: 569
        private const int MANY = 1440;
 
        // Token: 0x0400023A RID: 570
        internal static readonly int[] border;
 
        // Token: 0x0400023B RID: 571
        private InflateBlocks.InflateBlockMode mode;
 
        // Token: 0x0400023C RID: 572
        internal int left;
 
        // Token: 0x0400023D RID: 573
        internal int table;
 
        // Token: 0x0400023E RID: 574
        internal int index;
 
        // Token: 0x0400023F RID: 575
        internal int[] blens;
 
        // Token: 0x04000240 RID: 576
        internal int[] bb;
 
        // Token: 0x04000241 RID: 577
        internal int[] tb;
 
        // Token: 0x04000242 RID: 578
        internal InflateCodes codes;
 
        // Token: 0x04000243 RID: 579
        internal int last;
 
        // Token: 0x04000244 RID: 580
        internal ZlibCodec _codec;
 
        // Token: 0x04000245 RID: 581
        internal int bitk;
 
        // Token: 0x04000246 RID: 582
        internal int bitb;
 
        // Token: 0x04000247 RID: 583
        internal int[] hufts;
 
        // Token: 0x04000248 RID: 584
        internal byte[] window;
 
        // Token: 0x04000249 RID: 585
        internal int end;
 
        // Token: 0x0400024A RID: 586
        internal int readAt;
 
        // Token: 0x0400024B RID: 587
        internal int writeAt;
 
        // Token: 0x0400024C RID: 588
        internal object checkfn;
 
        // Token: 0x0400024D RID: 589
        internal uint check;
 
        // Token: 0x0400024E RID: 590
        internal InfTree inftree;
 
        // Token: 0x02000046 RID: 70
        private enum InflateBlockMode
        {
            // Token: 0x04000250 RID: 592
            TYPE,
            // Token: 0x04000251 RID: 593
            LENS,
            // Token: 0x04000252 RID: 594
            STORED,
            // Token: 0x04000253 RID: 595
            TABLE,
            // Token: 0x04000254 RID: 596
            BTREE,
            // Token: 0x04000255 RID: 597
            DTREE,
            // Token: 0x04000256 RID: 598
            CODES,
            // Token: 0x04000257 RID: 599
            DRY,
            // Token: 0x04000258 RID: 600
            DONE,
            // Token: 0x04000259 RID: 601
            BAD
        }
    }
}