forgot to remove dead code
[mono.git] / mcs / class / Mono.CSharp.Debugger / MonoSymbolTable.cs
index 37985157f4204225c33c7c91121c2d2c3f7a220a..723643f52cab0dc361d43cd804bc2fe04280ff9c 100644 (file)
@@ -18,7 +18,7 @@ namespace Mono.CSharp.Debugger
 {
        public struct OffsetTable
        {
-               public const int  Version = 29;
+               public const int  Version = 35;
                public const long Magic   = 0x45e82623fd7fa614;
 
                public int TotalFileSize;
@@ -136,17 +136,56 @@ namespace Mono.CSharp.Debugger
                }
        }
 
+       public class LexicalBlockEntry
+       {
+               public int Index;
+               public int StartOffset;
+               public int EndOffset;
+
+               public LexicalBlockEntry (int index, int start_offset)
+               {
+                       this.Index = index;
+                       this.StartOffset = start_offset;
+               }
+
+               internal LexicalBlockEntry (int index, BinaryReader reader)
+               {
+                       this.Index = index;
+                       this.StartOffset = reader.ReadInt32 ();
+                       this.EndOffset = reader.ReadInt32 ();
+               }
+
+               public void Close (int end_offset)
+               {
+                       this.EndOffset = end_offset;
+               }
+
+               internal void Write (BinaryWriter bw)
+               {
+                       bw.Write (StartOffset);
+                       bw.Write (EndOffset);
+               }
+
+               public override string ToString ()
+               {
+                       return String.Format ("[LexicalBlock {0}:{1}]", StartOffset, EndOffset);
+               }
+       }
+
        public struct LocalVariableEntry
        {
                public readonly string Name;
                public readonly FieldAttributes Attributes;
                public readonly byte[] Signature;
+               public readonly int BlockIndex;
 
-               public LocalVariableEntry (string Name, FieldAttributes Attributes, byte[] Signature)
+               public LocalVariableEntry (string Name, FieldAttributes Attributes, byte[] Signature,
+                                          int BlockIndex)
                {
                        this.Name = Name;
                        this.Attributes = Attributes;
                        this.Signature = Signature;
+                       this.BlockIndex = BlockIndex;
                }
 
                internal LocalVariableEntry (BinaryReader reader)
@@ -157,6 +196,7 @@ namespace Mono.CSharp.Debugger
                        Attributes = (FieldAttributes) reader.ReadInt32 ();
                        int sig_length = reader.ReadInt32 ();
                        Signature = reader.ReadBytes (sig_length);
+                       BlockIndex = reader.ReadInt32 ();
                }
 
                internal void Write (MonoSymbolFile file, BinaryWriter bw)
@@ -165,6 +205,7 @@ namespace Mono.CSharp.Debugger
                        bw.Write ((int) Attributes);
                        bw.Write ((int) Signature.Length);
                        bw.Write (Signature);
+                       bw.Write (BlockIndex);
                }
 
                public override string ToString ()
@@ -178,36 +219,51 @@ namespace Mono.CSharp.Debugger
                MonoSymbolFile file;
                string file_name;
                ArrayList methods;
+               ArrayList namespaces;
                int index, count, name_offset, method_offset;
+               int namespace_count, nstable_offset;
                bool creating;
 
-               internal static int Size {
-                       get { return 16; }
+               public static int Size {
+                       get { return 24; }
                }
 
-               internal SourceFileEntry (MonoSymbolFile file, string file_name, int index)
+               internal SourceFileEntry (MonoSymbolFile file, string file_name)
                {
                        this.file = file;
                        this.file_name = file_name;
-                       this.index = index;
+                       this.index = file.AddSource (this);
 
                        creating = true;
                        methods = new ArrayList ();
+                       namespaces = new ArrayList ();
                }
 
                public void DefineMethod (MethodBase method, int token, LocalVariableEntry[] locals,
-                                         LineNumberEntry[] lines, int start, int end)
+                                         LineNumberEntry[] lines, LexicalBlockEntry[] blocks,
+                                         int start, int end, int namespace_id)
                {
                        if (!creating)
                                throw new InvalidOperationException ();
 
                        MethodEntry entry = new MethodEntry (
-                               file, this, method, token, locals, lines, start, end);
+                               file, this, method, token, locals, lines, blocks, start, end, namespace_id);
 
                        methods.Add (entry);
                        file.AddMethod (entry);
                }
 
+               public int DefineNamespace (string name, string[] using_clauses, int parent)
+               {
+                       if (!creating)
+                               throw new InvalidOperationException ();
+
+                       int index = file.GetNextNamespaceIndex ();
+                       NamespaceEntry ns = new NamespaceEntry (name, index, using_clauses, parent);
+                       namespaces.Add (ns);
+                       return index;
+               }
+
                internal void WriteData (BinaryWriter bw)
                {
                        name_offset = (int) bw.BaseStream.Position;
@@ -222,14 +278,21 @@ namespace Mono.CSharp.Debugger
                        method_offset = (int) bw.BaseStream.Position;
                        foreach (MethodSourceEntry method in list)
                                method.Write (bw);
+
+                       namespace_count = namespaces.Count;
+                       nstable_offset = (int) bw.BaseStream.Position;
+                       foreach (NamespaceEntry ns in namespaces)
+                               ns.Write (file, bw);
                }
 
                internal void Write (BinaryWriter bw)
                {
                        bw.Write (index);
                        bw.Write (count);
+                       bw.Write (namespace_count);
                        bw.Write (name_offset);
                        bw.Write (method_offset);
+                       bw.Write (nstable_offset);
                }
 
                internal SourceFileEntry (MonoSymbolFile file, BinaryReader reader)
@@ -238,8 +301,10 @@ namespace Mono.CSharp.Debugger
 
                        index = reader.ReadInt32 ();
                        count = reader.ReadInt32 ();
+                       namespace_count = reader.ReadInt32 ();
                        name_offset = reader.ReadInt32 ();
                        method_offset = reader.ReadInt32 ();
+                       nstable_offset = reader.ReadInt32 ();
 
                        file_name = file.ReadString (name_offset);
                }
@@ -301,11 +366,8 @@ namespace Mono.CSharp.Debugger
                        EndRow = reader.ReadInt32 ();
                }
 
-               public static int Size
-               {
-                       get {
-                               return 16;
-                       }
+               public static int Size {
+                       get { return 16; }
                }
 
                internal void Write (BinaryWriter bw)
@@ -335,6 +397,44 @@ namespace Mono.CSharp.Debugger
                }
        }
 
+       public struct MethodIndexEntry
+       {
+               public readonly int FileOffset;
+               public readonly int FullNameOffset;
+               public readonly int Token;
+
+               public static int Size {
+                       get { return 12; }
+               }
+
+               public MethodIndexEntry (int offset, int name_offset, int token)
+               {
+                       this.FileOffset = offset;
+                       this.FullNameOffset = name_offset;
+                       this.Token = token;
+               }
+
+               internal MethodIndexEntry (BinaryReader reader)
+               {
+                       FileOffset = reader.ReadInt32 ();
+                       FullNameOffset = reader.ReadInt32 ();
+                       Token = reader.ReadInt32 ();
+               }
+
+               internal void Write (BinaryWriter bw)
+               {
+                       bw.Write (FileOffset);
+                       bw.Write (FullNameOffset);
+                       bw.Write (Token);
+               }
+
+               public override string ToString ()
+               {
+                       return String.Format ("MethodIndexEntry ({0}:{1}:{2:x})",
+                                             FileOffset, FullNameOffset, Token);
+               }
+       }
+
        public class MethodEntry
        {
                #region This is actually written to the symbol file
@@ -342,34 +442,40 @@ namespace Mono.CSharp.Debugger
                public readonly int Token;
                public readonly int StartRow;
                public readonly int EndRow;
-               public readonly int ThisTypeIndex;
+               public readonly int ClassTypeIndex;
                public readonly int NumParameters;
                public readonly int NumLocals;
                public readonly int NumLineNumbers;
+               public readonly int NamespaceID;
+               public readonly bool LocalNamesAmbiguous;
 
                int NameOffset;
                int FullNameOffset;
                int TypeIndexTableOffset;
                int LocalVariableTableOffset;
                int LineNumberTableOffset;
+               int NumLexicalBlocks;
+               int LexicalBlockTableOffset;
                #endregion
 
-               int index;
                int file_offset;
                string name;
                string full_name;
+               MethodIndexEntry index_entry;
 
+               public readonly int Index;
                public readonly SourceFileEntry SourceFile;
                public readonly LineNumberEntry[] LineNumbers;
                public readonly int[] ParamTypeIndices;
                public readonly int[] LocalTypeIndices;
                public readonly LocalVariableEntry[] Locals;
+               public readonly Type[] LocalTypes;
+               public readonly LexicalBlockEntry[] LexicalBlocks;
 
-               public static int Size
-               {
-                       get {
-                               return 48;
-                       }
+               public readonly MonoSymbolFile SymbolFile;
+
+               public static int Size {
+                       get { return 52; }
                }
 
                public string Name {
@@ -380,14 +486,19 @@ namespace Mono.CSharp.Debugger
                        get { return full_name; }
                }
 
+               public MethodBase MethodBase {
+                       get { return SymbolFile.Assembly.MonoDebugger_GetMethod (Token); }
+               }
+
                internal MethodEntry (MonoSymbolFile file, BinaryReader reader, int index)
                {
-                       this.index = index;
+                       this.SymbolFile = file;
+                       this.Index = index;
                        SourceFileIndex = reader.ReadInt32 ();
                        Token = reader.ReadInt32 ();
                        StartRow = reader.ReadInt32 ();
                        EndRow = reader.ReadInt32 ();
-                       ThisTypeIndex = reader.ReadInt32 ();
+                       ClassTypeIndex = reader.ReadInt32 ();
                        NumParameters = reader.ReadInt32 ();
                        NumLocals = reader.ReadInt32 ();
                        NumLineNumbers = reader.ReadInt32 ();
@@ -396,6 +507,10 @@ namespace Mono.CSharp.Debugger
                        TypeIndexTableOffset = reader.ReadInt32 ();
                        LocalVariableTableOffset = reader.ReadInt32 ();
                        LineNumberTableOffset = reader.ReadInt32 ();
+                       NumLexicalBlocks = reader.ReadInt32 ();
+                       LexicalBlockTableOffset = reader.ReadInt32 ();
+                       NamespaceID = reader.ReadInt32 ();
+                       LocalNamesAmbiguous = reader.ReadInt32 () != 0;
 
                        name = file.ReadString (NameOffset);
                        full_name = file.ReadString (FullNameOffset);
@@ -419,9 +534,15 @@ namespace Mono.CSharp.Debugger
                                reader.BaseStream.Position = LocalVariableTableOffset;
 
                                Locals = new LocalVariableEntry [NumLocals];
+                               LocalTypes = new Type [NumLocals];
 
-                               for (int i = 0; i < NumLocals; i++)
+                               Assembly ass = file.Assembly;
+
+                               for (int i = 0; i < NumLocals; i++) {
                                        Locals [i] = new LocalVariableEntry (reader);
+                                       LocalTypes [i] = ass.MonoDebugger_GetLocalTypeFromSignature (
+                                               Locals [i].Signature);
+                               }
 
                                reader.BaseStream.Position = old_pos;
                        }
@@ -440,42 +561,66 @@ namespace Mono.CSharp.Debugger
 
                                reader.BaseStream.Position = old_pos;
                        }
+
+                       if (LexicalBlockTableOffset != 0) {
+                               long old_pos = reader.BaseStream.Position;
+                               reader.BaseStream.Position = LexicalBlockTableOffset;
+
+                               LexicalBlocks = new LexicalBlockEntry [NumLexicalBlocks];
+                               for (int i = 0; i < NumLexicalBlocks; i++)
+                                       LexicalBlocks [i] = new LexicalBlockEntry (i, reader);
+
+                               reader.BaseStream.Position = old_pos;
+                       }
                }
 
                internal MethodEntry (MonoSymbolFile file, SourceFileEntry source, MethodBase method,
                                      int token, LocalVariableEntry[] locals, LineNumberEntry[] lines,
-                                     int start_row, int end_row)
+                                     LexicalBlockEntry[] blocks, int start_row, int end_row,
+                                     int namespace_id)
                {
-                       index = file.GetNextMethodIndex ();
+                       this.SymbolFile = file;
+                       Index = file.GetNextMethodIndex ();
 
                        Token = token;
                        SourceFileIndex = source.Index;
                        SourceFile = source;
                        StartRow = start_row;
                        EndRow = end_row;
+                       NamespaceID = namespace_id;
+                       LexicalBlocks = blocks;
+                       NumLexicalBlocks = LexicalBlocks.Length;
 
-                       LineNumbers = BuildLineNumberTable (lines);
+                       LineNumbers = lines;
                        NumLineNumbers = LineNumbers.Length;
 
                        ParameterInfo[] parameters = method.GetParameters ();
                        if (parameters == null)
                                parameters = new ParameterInfo [0];
-
-                       StringBuilder sb = new StringBuilder ();
-                       sb.Append (method.DeclaringType.FullName);
-                       sb.Append (".");
-                       sb.Append (method.Name);
-                       sb.Append ("(");
-                       for (int i = 0; i < parameters.Length; i++) {
-                               if (i > 0)
-                                       sb.Append (",");
-                               sb.Append (parameters [i].ParameterType.FullName);
+                       
+                       if (parameters.Length == 0)
+                               full_name = method.DeclaringType.FullName + "." + method.Name + "()";
+                       else if (parameters.Length == 1)
+                               full_name = method.DeclaringType.FullName + "." + method.Name + "(" + parameters [0].ParameterType.FullName +  ")";
+                       else if (parameters.Length == 2)
+                               full_name = method.DeclaringType.FullName + "." + method.Name + "(" + parameters [0].ParameterType.FullName + "," + parameters [1].ParameterType.FullName + ")";
+                       else {
+                               StringBuilder sb = new StringBuilder ();
+                               sb.Append (method.DeclaringType.FullName);
+                               sb.Append (".");
+                               sb.Append (method.Name);
+                               sb.Append ("(");
+                               for (int i = 0; i < parameters.Length; i++) {
+                                       if (i > 0)
+                                               sb.Append (",");
+                                       sb.Append (parameters [i].ParameterType.FullName);
+                               }
+                               sb.Append (")");
+                               full_name = sb.ToString ();
                        }
-                       sb.Append (")");
 
                        name = method.Name;
-                       full_name = sb.ToString ();
-
+                       
                        NumParameters = parameters.Length;
                        ParamTypeIndices = new int [NumParameters];
                        for (int i = 0; i < NumParameters; i++)
@@ -484,43 +629,39 @@ namespace Mono.CSharp.Debugger
                        NumLocals = locals.Length;
                        Locals = locals;
 
-                       LocalTypeIndices = new int [NumLocals];
-                       for (int i = 0; i < NumLocals; i++)
-                               LocalTypeIndices [i] = file.GetNextTypeIndex ();
-
-                       if (method.IsStatic)
-                               ThisTypeIndex = 0;
-                       else
-                               ThisTypeIndex = file.DefineType (method.ReflectedType);
-               }
-
-               LineNumberEntry[] BuildLineNumberTable (LineNumberEntry[] line_numbers)
-               {
-                       // Array.Sort (line_numbers, LineNumberEntry.OffsetComparer);
-
-                       ArrayList list = new ArrayList ();
-                       int last_offset = -1;
-                       int last_row = -1;
-
-                       for (int i = 0; i < line_numbers.Length; i++) {
-                               LineNumberEntry line = (LineNumberEntry) line_numbers [i];
-
-                               if (line.Offset > last_offset) {
-                                       if (last_row >= 0)
-                                               list.Add (new LineNumberEntry (last_row, last_offset));
-                                       last_row = line.Row;
-                                       last_offset = line.Offset;
-                               } else if (line.Row > last_row) {
-                                       last_row = line.Row;
+                       if (NumLocals <= 32) {
+                               // Most of the time, the O(n^2) factor is actually
+                               // less than the cost of allocating the hash table,
+                               // 32 is a rough number obtained through some testing.
+                               
+                               for (int i = 0; i < NumLocals; i ++) {
+                                       string nm = locals [i].Name;
+                                       
+                                       for (int j = i + 1; j < NumLocals; j ++) {
+                                               if (locals [j].Name == nm) {
+                                                       LocalNamesAmbiguous = true;
+                                                       goto locals_check_done;
+                                               }
+                                       }
+                               }
+                       locals_check_done :
+                               ;
+                       } else {
+                               Hashtable local_names = new Hashtable ();
+                               foreach (LocalVariableEntry local in locals) {
+                                       if (local_names.Contains (local.Name)) {
+                                               LocalNamesAmbiguous = true;
+                                               break;
+                                       }
+                                       local_names.Add (local.Name, local);
                                }
                        }
 
-                       if (last_row >= 0)
-                               list.Add (new LineNumberEntry (last_row, last_offset));
+                       LocalTypeIndices = new int [NumLocals];
+                       for (int i = 0; i < NumLocals; i++)
+                               LocalTypeIndices [i] = file.GetNextTypeIndex ();
 
-                       LineNumberEntry[] retval = new LineNumberEntry [list.Count];
-                       list.CopyTo (retval, 0);
-                       return retval;
+                       ClassTypeIndex = file.DefineType (method.ReflectedType);
                }
 
                internal MethodSourceEntry Write (MonoSymbolFile file, BinaryWriter bw)
@@ -539,25 +680,27 @@ namespace Mono.CSharp.Debugger
                                bw.Write (LocalTypeIndices [i]);
 
                        LocalVariableTableOffset = (int) bw.BaseStream.Position;
-
                        for (int i = 0; i < NumLocals; i++)
                                Locals [i].Write (file, bw);
+                       file.LocalCount += NumLocals;
 
                        LineNumberTableOffset = (int) bw.BaseStream.Position;
-
                        for (int i = 0; i < NumLineNumbers; i++)
                                LineNumbers [i].Write (bw);
-
                        file.LineNumberCount += NumLineNumbers;
-                       file.LocalCount += NumLocals;
 
+                       LexicalBlockTableOffset = (int) bw.BaseStream.Position;
+                       for (int i = 0; i < NumLexicalBlocks; i++)
+                               LexicalBlocks [i].Write (bw);
                        file_offset = (int) bw.BaseStream.Position;
 
+                       index_entry = new MethodIndexEntry (file_offset, FullNameOffset, Token);
+
                        bw.Write (SourceFileIndex);
                        bw.Write (Token);
                        bw.Write (StartRow);
                        bw.Write (EndRow);
-                       bw.Write (ThisTypeIndex);
+                       bw.Write (ClassTypeIndex);
                        bw.Write (NumParameters);
                        bw.Write (NumLocals);
                        bw.Write (NumLineNumbers);
@@ -566,22 +709,56 @@ namespace Mono.CSharp.Debugger
                        bw.Write (TypeIndexTableOffset);
                        bw.Write (LocalVariableTableOffset);
                        bw.Write (LineNumberTableOffset);
+                       bw.Write (NumLexicalBlocks);
+                       bw.Write (LexicalBlockTableOffset);
+                       bw.Write (NamespaceID);
+                       bw.Write (LocalNamesAmbiguous ? 1 : 0);
 
-                       return new MethodSourceEntry (index, file_offset, StartRow, EndRow);
+                       return new MethodSourceEntry (Index, file_offset, StartRow, EndRow);
                }
 
                internal void WriteIndex (BinaryWriter bw)
                {
-                       bw.Write (file_offset);
-                       bw.Write (FullNameOffset);
+                       index_entry.Write (bw);
                }
 
                public override string ToString ()
                {
                        return String.Format ("[Method {0}:{1}:{2}:{3}:{4} - {7}:{8}:{9}:{10} - {5} - {6}]",
-                                             index, Token, SourceFileIndex, StartRow, EndRow,
-                                             SourceFile, FullName, ThisTypeIndex, NumParameters,
+                                             Index, Token, SourceFileIndex, StartRow, EndRow,
+                                             SourceFile, FullName, ClassTypeIndex, NumParameters,
                                              NumLocals, NumLineNumbers);
                }
        }
+
+       public struct NamespaceEntry
+       {
+               public readonly string Name;
+               public readonly int Index;
+               public readonly int Parent;
+               public readonly string[] UsingClauses;
+
+               public NamespaceEntry (string name, int index, string[] using_clauses, int parent)
+               {
+                       this.Name = name;
+                       this.Index = index;
+                       this.Parent = parent;
+                       this.UsingClauses = using_clauses != null ? using_clauses : new string [0];
+               }
+
+               internal void Write (MonoSymbolFile file, BinaryWriter bw)
+               {
+                       file.WriteString (bw, Name);
+                       bw.Write (Index);
+                       bw.Write (Parent);
+                       bw.Write (UsingClauses.Length);
+                       foreach (string uc in UsingClauses)
+                               file.WriteString (bw, uc);
+               }
+
+               public override string ToString ()
+               {
+                       return String.Format ("[Namespace {0}:{1}:{2}]", Name, Index, Parent);
+               }
+       }
 }