//
// System.Exception.cs
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
// Patrik Torstensson
//
// (C) Ximian, Inc. http://www.ximian.com
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections;
using System.Diagnostics;
using System.Reflection;
using System.Text;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
using System.Security.Permissions;
namespace System
{
[Serializable]
[ClassInterface (ClassInterfaceType.AutoDual)]
public class Exception : ISerializable
#if NET_2_0
, _Exception
#endif
{
IntPtr [] trace_ips;
Exception inner_exception;
string message;
string help_link;
string class_name;
string stack_trace;
string remote_stack_trace;
int remote_stack_index;
internal int hresult = unchecked ((int)0x80004005);
string source;
public Exception ()
{
}
public Exception (string msg)
{
message = msg;
}
protected Exception (SerializationInfo info, StreamingContext sc)
{
if (info == null)
throw new ArgumentNullException ("info");
class_name = info.GetString ("ClassName");
message = info.GetString ("Message");
help_link = info.GetString ("HelpURL");
stack_trace = info.GetString ("StackTraceString");
remote_stack_trace = info.GetString ("RemoteStackTraceString");
remote_stack_index = info.GetInt32 ("RemoteStackIndex");
hresult = info.GetInt32 ("HResult");
source = info.GetString ("Source");
inner_exception = (Exception) info.GetValue ("InnerException", typeof (Exception));
}
public Exception (string msg, Exception e)
{
inner_exception = e;
message = msg;
}
public Exception InnerException {
get { return inner_exception; }
}
public virtual string HelpLink {
get { return help_link; }
set { help_link = value; }
}
protected int HResult {
get { return hresult; }
set { hresult = value; }
}
internal void SetMessage (string s)
{
message = s;
}
internal void SetStackTrace (string s)
{
stack_trace = s;
}
public virtual string Message {
get {
if (message == null)
message = string.Format (Locale.GetText ("Exception of type {0} was thrown."), GetType ().ToString());
return message;
}
}
public virtual string Source {
#if ONLY_1_1
[ReflectionPermission (SecurityAction.Assert, TypeInformation = true)]
#endif
get {
if (source == null) {
StackTrace st = new StackTrace (this, true);
if (st.FrameCount > 0) {
StackFrame sf = st.GetFrame (0);
if (st != null) {
MethodBase method = sf.GetMethod ();
if (method != null) {
source = method.DeclaringType.Assembly.UnprotectedGetName ().Name;
}
}
}
}
// source can be null
return source;
}
set {
source = value;
}
}
public virtual string StackTrace {
get {
if (stack_trace == null) {
if (trace_ips == null)
/* Not thrown yet */
return null;
StackTrace st = new StackTrace (this, 0, true, true);
StringBuilder sb = new StringBuilder ();
string newline = String.Format ("{0} {1} ", Environment.NewLine, Locale.GetText ("at"));
string unknown = Locale.GetText ("<unknown method>");
for (int i = 0; i < st.FrameCount; i++) {
StackFrame frame = st.GetFrame (i);
if (i == 0)
sb.AppendFormat (" {0} ", Locale.GetText ("at"));
else
sb.Append (newline);
if (frame.GetMethod () == null) {
string internal_name = frame.GetInternalMethodName ();
if (internal_name != null)
sb.Append (internal_name);
else
sb.AppendFormat ("<0x{0:x5}> {1}", frame.GetNativeOffset (), unknown);
} else {
sb.Append (GetFullNameForStackTrace (frame.GetMethod ()));
if (frame.GetILOffset () == -1)
sb.AppendFormat (" <0x{0:x5}> ", frame.GetNativeOffset ());
else
sb.AppendFormat (" [0x{0:x5}] ", frame.GetILOffset ());
string fileName = frame.GetFileName ();
if (fileName != null)
sb.AppendFormat ("in {0}:{1} ", fileName, frame.GetFileLineNumber ());
}
}
stack_trace = sb.ToString ();
}
return stack_trace;
}
}
public MethodBase TargetSite {
#if ONLY_1_1
[ReflectionPermission (SecurityAction.Demand, TypeInformation = true)]
#endif
get {
StackTrace st = new StackTrace (this, true);
if (st.FrameCount > 0)
return st.GetFrame (0).GetMethod ();
return null;
}
}
#if NET_2_0
private IDictionary _data;
public virtual IDictionary Data {
get {
if (_data == null) {
// default to empty dictionary
_data = (IDictionary) new Hashtable ();
}
return _data;
}
}
#endif
public virtual Exception GetBaseException ()
{
Exception inner = inner_exception;
while (inner != null)
{
if (inner.InnerException != null)
inner = inner.InnerException;
else
return inner;
}
return this;
}
#if ONLY_1_1
[ReflectionPermission (SecurityAction.Assert, TypeInformation = true)]
#endif
[SecurityPermission (SecurityAction.LinkDemand, SerializationFormatter = true)]
public virtual void GetObjectData (SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException ("info");
if (class_name == null)
class_name = GetType ().FullName;
info.AddValue ("ClassName", class_name);
info.AddValue ("Message", message);
info.AddValue ("InnerException", inner_exception);
info.AddValue ("HelpURL", help_link);
info.AddValue ("StackTraceString", StackTrace);
info.AddValue ("RemoteStackTraceString", remote_stack_trace);
info.AddValue ("RemoteStackIndex", remote_stack_index);
info.AddValue ("HResult", hresult);
info.AddValue ("Source", Source);
info.AddValue ("ExceptionMethod", null);
}
#if ONLY_1_1
[ReflectionPermission (SecurityAction.Assert, TypeInformation = true)]
#endif
public override string ToString ()
{
System.Text.StringBuilder result = new System.Text.StringBuilder (this.GetType ().FullName);
result.Append (": ").Append (Message);
if (null != remote_stack_trace)
result.Append (remote_stack_trace);
if (inner_exception != null)
{
result.Append (" ---> ").Append (inner_exception.ToString ());
result.Append (Locale.GetText ("--- End of inner exception stack trace ---"));
result.Append (Environment.NewLine);
}
if (StackTrace != null)
result.Append (Environment.NewLine).Append (StackTrace);
return result.ToString();
}
internal Exception FixRemotingException ()
{
string message = (0 == remote_stack_index) ?
Locale.GetText ("{0}{0}Server stack trace: {0}{1}{0}{0}Exception rethrown at [{2}]: {0}") :
Locale.GetText ("{1}{0}{0}Exception rethrown at [{2}]: {0}");
string tmp = String.Format (message, Environment.NewLine, StackTrace, remote_stack_index);
remote_stack_trace = tmp;
remote_stack_index++;
stack_trace = null;
return this;
}
internal string GetFullNameForStackTrace (MethodBase mi)
{
string parms = String.Empty;
ParameterInfo[] p = mi.GetParameters ();
for (int i = 0; i < p.Length; ++i) {
if (i > 0)
parms = parms + ", ";
string paramName = (p [i].Name == null) ? String.Empty : (" " + p [i].Name);
Type pt = p[i].ParameterType;
if (pt.IsClass && pt.Namespace != String.Empty)
parms = parms + pt.Namespace + "." + pt.Name + paramName;
else
parms = parms + pt.Name + paramName;
}
string generic = String.Empty;
#if NET_2_0 || BOOTSTRAP_NET_2_0
if (mi.IsGenericMethod) {
Type[] gen_params = mi.GetGenericArguments ();
generic = "[";
for (int j = 0; j < gen_params.Length; j++) {
if (j > 0)
generic += ",";
generic += gen_params [j].Name;
}
generic += "]";
}
#endif
return mi.DeclaringType.ToString () + "." + mi.Name + generic + " (" + parms + ")";
}
}
}