mcs/class/Mono.PEToolkit/metadata/MDTable.cs

   1 /*\r
   2  * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>\r
   3  */\r
   4 \r
   5 using System;\r
   6 using System.IO;\r
   7 using System.Collections;\r
   8 using System.Runtime.InteropServices;\r
   9 \r
  10 namespace Mono.PEToolkit.Metadata {\r
  11 \r
  12         public interface MDTable {\r
  13                 /// <summary>\r
  14                 /// Number of rows in the table.\r
  15                 /// </summary>\r
  16                 int NumberOfRows {get;}\r
  17 \r
  18                 /// <summary>\r
  19                 /// Gets ot sets a row in the metadata table.\r
  20                 /// </summary>\r
  21                 Row this [int rowNum] {get; set;}\r
  22 \r
  23                 void Add(Row row);\r
  24 \r
  25                 void FromRawData(byte [] buff, int offs, int numRows);\r
  26 \r
  27                 string Name {get;}\r
  28 \r
  29                 TableId Id {get;}\r
  30 \r
  31                 MDHeap Heap {get;}\r
  32 \r
  33                 void Dump(TextWriter writer);\r
  34         }\r
  35 \r
  36 \r
  37         public abstract class MDTableBase : MDTable {\r
  38                 protected ArrayList rows; // rows storage\r
  39                 protected MDHeap heap;    // base heap\r
  40 \r
  41                 public MDTableBase(MDHeap heap)\r
  42                 {\r
  43                         rows = new ArrayList();\r
  44                         this.heap = heap;\r
  45 \r
  46                         if (heap is TablesHeap) {\r
  47                                 (heap as TablesHeap).RegisterTable(this);\r
  48                         }\r
  49                 }\r
  50 \r
  51                 public virtual int NumberOfRows {\r
  52                         get {\r
  53                                 return rows.Count;\r
  54                         }\r
  55                 }\r
  56 \r
  57 \r
  58                 public virtual Row this [int rowNum] {\r
  59                         get {\r
  60                                 if (rowNum < 0) throw new IndexOutOfRangeException("Row[]");\r
  61 \r
  62                                 // Zero row, special case\r
  63                                 if (rowNum == 0) return NullRow.Instance;\r
  64                                 return rows [rowNum - 1] as Row;\r
  65                         }\r
  66                         set {\r
  67                                 rows.Insert(rowNum, value);\r
  68                         }\r
  69                 }\r
  70 \r
  71                 public virtual void Add(Row row)\r
  72                 {\r
  73                         rows.Add(row);\r
  74                 }\r
  75 \r
  76                 public abstract void FromRawData(byte [] buff, int offs, int numRows);\r
  77 \r
  78                 public abstract string Name {get;}\r
  79 \r
  80                 public abstract TableId Id {get;}\r
  81 \r
  82                 public virtual MDHeap Heap {\r
  83                         get {\r
  84                                 return heap;\r
  85                         }\r
  86                 }\r
  87 \r
  88                 public virtual void Dump(TextWriter writer)\r
  89                 {\r
  90                         writer.WriteLine("=========================================");\r
  91                         writer.WriteLine("Table '{0}', id = {1} (0x{2}), rows = {3}",\r
  92                                 Name, Id, ((int) Id).ToString("X"), NumberOfRows);\r
  93                         int n = 1;\r
  94                         foreach (Row row in rows) {\r
  95                                 writer.WriteLine();\r
  96                                 writer.WriteLine("Row #{0}", n++);\r
  97                                 writer.WriteLine("-------------");\r
  98                                 row.Dump(writer);\r
  99                                 writer.WriteLine();\r
 100                         }\r
 101                 }\r
 102 \r
 103         }\r
 104 \r
 105 }\r