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//
// 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.Collections.Generic;
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]
[ComVisible(true)]
[ComDefaultInterface (typeof (_Exception))]
[ClassInterface (ClassInterfaceType.None)]
[StructLayout (LayoutKind.Sequential)]
#if MOBILE
public class Exception : ISerializable
#else
public class Exception : ISerializable, _Exception
#endif
{
#pragma warning disable 169, 649
#region Sync with object-internals.h
/* Stores the IPs and the generic sharing infos
(vtable/MRGCTX) of the frames. */
IntPtr [] trace_ips;
Exception inner_exception;
internal string _message;
string help_link;
string class_name;
string stack_trace;
// formerly known as remote_stack_trace (see #425512):
string _remoteStackTraceString;
int remote_stack_index;
internal int hresult = -2146233088;
string source;
IDictionary _data;
internal StackTrace[] captured_traces;
IntPtr[] native_trace_ips;
#endregion
#pragma warning restore 169, 649
/* Don't add fields here, the runtime depends on the layout of subclasses */
public Exception ()
{
}
public Exception (string message)
{
this._message = message;
}
protected Exception (SerializationInfo info, StreamingContext context)
{
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");
_remoteStackTraceString = 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));
try {
_data = (IDictionary) info.GetValue ("Data", typeof (IDictionary));
} catch (SerializationException) {
// member did not exist in .NET 1.x
}
}
public Exception (string message, Exception innerException)
{
inner_exception = innerException;
this._message = message;
}
public Exception InnerException {
get { return inner_exception; }
}
public virtual string HelpLink {
get { return help_link; }
set { help_link = value; }
}
public int HResult {
get { return hresult; }
protected set { hresult = value; }
}
internal void SetErrorCode(int hr)
{
HResult = hr;
}
internal void SetMessage (string s)
{
_message = s;
}
internal void SetStackTrace (string s)
{
stack_trace = s;
}
string ClassName {
get {
if (class_name == null)
class_name = GetType ().ToString ();
return class_name;
}
}
public virtual string Message {
get {
if (_message == null)
_message = string.Format (Locale.GetText ("Exception of type '{0}' was thrown."),
ClassName);
return _message;
}
}
[MonoTODO]
protected event EventHandler<SafeSerializationEventArgs> SerializeObjectState {
add {
}
remove {
}
}
public virtual string Source {
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)
return stack_trace;
if (trace_ips == null)
/* Not thrown yet */
return null;
StackTrace st = new StackTrace (this, 0, true, true);
return stack_trace = st.ToString ();
}
}
public MethodBase TargetSite {
get {
StackTrace st = new StackTrace (this, true);
if (st.FrameCount > 0)
return st.GetFrame (0).GetMethod ();
return null;
}
}
public virtual IDictionary Data {
get {
if (_data == null) {
// default to empty dictionary
_data = new Dictionary<object, object> ();
}
return _data;
}
}
public virtual Exception GetBaseException ()
{
Exception inner = inner_exception;
while (inner != null)
{
if (inner.InnerException != null)
inner = inner.InnerException;
else
return inner;
}
return this;
}
[SecurityPermission (SecurityAction.LinkDemand, SerializationFormatter = true)]
public virtual void GetObjectData (SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException ("info");
info.AddValue ("ClassName", ClassName);
info.AddValue ("Message", _message);
info.AddValue ("InnerException", inner_exception);
info.AddValue ("HelpURL", help_link);
info.AddValue ("StackTraceString", StackTrace);
info.AddValue ("RemoteStackTraceString", _remoteStackTraceString);
info.AddValue ("RemoteStackIndex", remote_stack_index);
info.AddValue ("HResult", hresult);
info.AddValue ("Source", Source);
info.AddValue ("ExceptionMethod", null);
info.AddValue ("Data", _data, typeof (IDictionary));
}
public override string ToString ()
{
System.Text.StringBuilder result = new System.Text.StringBuilder (ClassName);
result.Append (": ").Append (Message);
if (null != _remoteStackTraceString)
result.Append (_remoteStackTraceString);
if (inner_exception != null)
{
result.Append (" ---> ").Append (inner_exception.ToString ());
result.Append (Environment.NewLine);
result.Append (Locale.GetText (" --- End of inner exception stack trace ---"));
}
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);
_remoteStackTraceString = tmp;
remote_stack_index++;
stack_trace = null;
return this;
}
// For ExceptionDispatchInfo
internal void RestoreExceptionDispatchInfo (System.Runtime.ExceptionServices.ExceptionDispatchInfo exceptionDispatchInfo)
{
captured_traces = (StackTrace[]) exceptionDispatchInfo.BinaryStackTraceArray;
trace_ips = null;
}
//
// The documentation states that this is available in 1.x,
// but it was not available (MemberRefing this would fail)
// and it states the signature is `override sealed', but the
// correct value is `newslot'
//
public new Type GetType ()
{
return base.GetType ();
}
internal enum ExceptionMessageKind
{
ThreadAbort = 1,
ThreadInterrupted = 2,
OutOfMemory = 3
}
internal static String GetMessageFromNativeResources (ExceptionMessageKind kind)
{
switch (kind) {
case ExceptionMessageKind.ThreadAbort:
return "";
case ExceptionMessageKind.ThreadInterrupted:
return "";
case ExceptionMessageKind.OutOfMemory:
return "Out of memory";
}
return "";
}
}
}
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