mcs/class/corlib/System/Exception.cs

   1 //
   2 // System.Exception.cs
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //
   7 // (C) Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 using System.Runtime.Serialization;
  11 using System.Reflection;
  12
  13 namespace System {
  14
  15         public class Exception : ISerializable {
  16                 Exception inner_exception;
  17                 string message;
  18                 string help_link;
  19                 string stack_trace = "TODO: implement stack traces";
  20                 int hresult;
  21                 private string source;
  22
  23                 public Exception ()
  24                 {
  25                         inner_exception = null;
  26                         message = "";
  27                 }
  28
  29                 public Exception (string msg)
  30                 {
  31                         inner_exception = null;
  32                         message = msg;
  33                 }
  34
  35                 protected Exception (SerializationInfo info, StreamingContext sc)
  36                 {
  37                         if (info == null){
  38                                 throw new ArgumentNullException ("info");
  39                         }
  40
  41                         // TODO: Implement the restoration of an Exception
  42                         // from a stream.
  43                 }
  44
  45                 public Exception (string msg, Exception e)
  46                 {
  47                         inner_exception = e;
  48                         message = msg;
  49                 }
  50
  51                 public Exception InnerException {
  52                         get {
  53                                 return inner_exception;
  54                         }
  55                 }
  56
  57                 public string HelpLink {
  58                         get {
  59                                 return help_link;
  60                         }
  61
  62                         set {
  63                                 help_link = value;
  64                         }
  65                 }
  66
  67                 protected int HResult {
  68                         get {
  69                                 return hresult;
  70                         }
  71
  72                         set {
  73                                 hresult = value;
  74                         }
  75                 }
  76
  77                 public string Message {
  78                         get {
  79                                 return message;
  80                         }
  81                 }
  82
  83                 public string Source {
  84                         get {
  85                                 // TODO: if source is null, we must return
  86                                 // the name of the assembly where the error
  87                                 // originated.
  88                                 return source;
  89                         }
  90
  91                         set {
  92                                 source = value;
  93                         }
  94                 }
  95
  96                 public string StackTrace {
  97                         get {
  98                                 return stack_trace;
  99                         }
 100                 }
 101
 102                 public MethodBase TargetSite {
 103                         get {
 104                                 // TODO: Implement this.
 105                                 return null;
 106                         }
 107                 }
 108
 109                 public virtual Exception GetBaseException ()
 110                 {
 111                         Exception inner = inner_exception;
 112
 113                         while (inner != null){
 114                                 if (inner.InnerException != null)
 115                                         inner = inner.InnerException;
 116                                 else
 117                                         return inner;
 118                         }
 119
 120                         return null;
 121                 }
 122
 123                 public virtual void GetObjectData (SerializationInfo info, StreamingContext context)
 124                 {
 125                         // TODO: implement me.
 126                 }
 127
 128                 public override string ToString ()
 129                 {
 130                         return this.GetType ().FullName + "\n" +
 131                                 message +
 132                                 GetBaseException ().GetType ().FullName +
 133                                 stack_trace;
 134                 }
 135         }
 136 }
 137