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//
// System.Diagnostics.StackTrace.cs
//
// Author:
// Alexander Klyubin (klyubin@aqris.com)
// Dietmar Maurer (dietmar@ximian.com)
//
// (C) 2001
// 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.Generic;
using System.Globalization;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Threading;
namespace System.Diagnostics {
[Serializable]
[ComVisible (true)]
[MonoTODO ("Serialized objects are not compatible with .NET")]
public class StackTrace {
// TraceFormat is Used to specify options for how the
// string-representation of a StackTrace should be generated.
internal enum TraceFormat
{
Normal,
TrailingNewLine, // include a trailing new line character
NoResourceLookup // to prevent infinite resource recusion
}
public const int METHODS_TO_SKIP = 0;
private StackFrame[] frames;
private bool debug_info;
public StackTrace ()
{
init_frames (METHODS_TO_SKIP, false);
}
public StackTrace (bool fNeedFileInfo)
{
init_frames (METHODS_TO_SKIP, fNeedFileInfo);
}
public StackTrace (int skipFrames)
{
init_frames (skipFrames, false);
}
public StackTrace (int skipFrames, bool fNeedFileInfo)
{
init_frames (skipFrames, fNeedFileInfo);
}
void init_frames (int skipFrames, bool fNeedFileInfo)
{
if (skipFrames < 0)
throw new ArgumentOutOfRangeException ("< 0", "skipFrames");
StackFrame sf;
var l = new List<StackFrame> ();
skipFrames += 2;
while ((sf = new StackFrame (skipFrames, fNeedFileInfo)) != null &&
sf.GetMethod () != null) {
l.Add (sf);
skipFrames++;
};
debug_info = fNeedFileInfo;
frames = l.ToArray ();
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
extern static StackFrame [] get_trace (Exception e, int skipFrames, bool fNeedFileInfo);
public StackTrace (Exception e)
: this (e, METHODS_TO_SKIP, false)
{
}
public StackTrace (Exception e, bool fNeedFileInfo)
: this (e, METHODS_TO_SKIP, fNeedFileInfo)
{
}
public StackTrace (Exception e, int skipFrames)
: this (e, skipFrames, false)
{
}
public StackTrace (Exception e, int skipFrames, bool fNeedFileInfo)
: this (e, skipFrames, fNeedFileInfo, false)
{
}
internal StackTrace (Exception e, int skipFrames, bool fNeedFileInfo, bool returnNativeFrames)
{
if (e == null)
throw new ArgumentNullException ("e");
if (skipFrames < 0)
throw new ArgumentOutOfRangeException ("< 0", "skipFrames");
frames = get_trace (e, skipFrames, fNeedFileInfo);
if (!returnNativeFrames) {
bool resize = false;
for (int i = 0; i < frames.Length; ++i)
if (frames [i].GetMethod () == null)
resize = true;
if (resize) {
var l = new List<StackFrame> ();
for (int i = 0; i < frames.Length; ++i)
if (frames [i].GetMethod () != null)
l.Add (frames [i]);
frames = l.ToArray ();
}
}
}
public StackTrace (StackFrame frame)
{
this.frames = new StackFrame [1];
this.frames [0] = frame;
}
[MonoLimitation ("Not possible to create StackTraces from other threads")]
[Obsolete]
public StackTrace (Thread targetThread, bool needFileInfo)
{
if (targetThread == Thread.CurrentThread){
init_frames (METHODS_TO_SKIP, needFileInfo);
return;
}
throw new NotImplementedException ();
}
public virtual int FrameCount {
get {
return (frames == null) ? 0 : frames.Length;
}
}
public virtual StackFrame GetFrame (int index)
{
if ((index < 0) || (index >= FrameCount)) {
return null;
}
return frames [index];
}
[ComVisibleAttribute (false)]
public virtual StackFrame[] GetFrames ()
{
return frames;
}
internal bool AddFrames (StringBuilder sb, bool isException = false)
{
bool printOffset;
string debugInfo, indentation;
string unknown = Locale.GetText ("<unknown method>");
if (isException) {
printOffset = true;
indentation = " ";
debugInfo = Locale.GetText (" in {0}:{1} ");
} else {
printOffset = false;
indentation = " ";
debugInfo = Locale.GetText (" in {0}:line {1}");
}
var newline = String.Format ("{0}{1}{2} ", Environment.NewLine, indentation,
Locale.GetText ("at"));
int i;
for (i = 0; i < FrameCount; i++) {
StackFrame frame = GetFrame (i);
if (i == 0)
sb.AppendFormat ("{0}{1} ", indentation, 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 if (printOffset)
sb.AppendFormat ("<0x{0:x5} + 0x{1:x5}> {2}", frame.GetMethodAddress (), frame.GetNativeOffset (), unknown);
else
sb.AppendFormat (unknown);
} else {
GetFullNameForStackTrace (sb, frame.GetMethod ());
if (printOffset) {
if (frame.GetILOffset () == -1) {
sb.AppendFormat (" <0x{0:x5} + 0x{1:x5}>", frame.GetMethodAddress (), frame.GetNativeOffset ());
if (frame.GetMethodIndex () != 0xffffff)
sb.AppendFormat (" {0}", frame.GetMethodIndex ());
} else {
sb.AppendFormat (" [0x{0:x5}]", frame.GetILOffset ());
}
}
sb.AppendFormat (debugInfo, frame.GetSecureFileName (),
frame.GetFileLineNumber ());
}
}
return i != 0;
}
// This method is also used with reflection by mono-symbolicate tool.
// mono-symbolicate tool uses this method to check which method matches
// the stack frame method signature.
static void GetFullNameForStackTrace (StringBuilder sb, MethodBase mi)
{
var declaringType = mi.DeclaringType;
if (declaringType.IsGenericType && !declaringType.IsGenericTypeDefinition)
declaringType = declaringType.GetGenericTypeDefinition ();
// Get generic definition
var bindingflags = BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;
foreach (var m in declaringType.GetMethods (bindingflags)) {
if (m.MetadataToken == mi.MetadataToken) {
mi = m;
break;
}
}
sb.Append (declaringType.ToString ());
sb.Append (".");
sb.Append (mi.Name);
if (mi.IsGenericMethod) {
Type[] gen_params = mi.GetGenericArguments ();
sb.Append ("[");
for (int j = 0; j < gen_params.Length; j++) {
if (j > 0)
sb.Append (",");
sb.Append (gen_params [j].Name);
}
sb.Append ("]");
}
ParameterInfo[] p = mi.GetParametersInternal ();
sb.Append (" (");
for (int i = 0; i < p.Length; ++i) {
if (i > 0)
sb.Append (", ");
Type pt = p[i].ParameterType;
if (pt.IsGenericType && ! pt.IsGenericTypeDefinition)
pt = pt.GetGenericTypeDefinition ();
if (pt.IsClass && !String.IsNullOrEmpty (pt.Namespace)) {
sb.Append (pt.Namespace);
sb.Append (".");
}
sb.Append (pt.Name);
if (p [i].Name != null) {
sb.Append (" ");
sb.Append (p [i].Name);
}
}
sb.Append (")");
}
public override string ToString ()
{
StringBuilder sb = new StringBuilder ();
AddFrames (sb);
return sb.ToString ();
}
internal String ToString (TraceFormat traceFormat)
{
// TODO:
return ToString ();
}
}
}
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