internal Exception(Thread thread)
{
creationTime = DateTime.Now;
this.process = thread.Process;
this.thread = thread;
corValue = thread.CorThread.CurrentException;
exceptionType = thread.CurrentExceptionType;
Value runtimeValue = new Value(process,
new IExpirable[] { process.PauseSession },
new IMutable[] {},
delegate { return(corValue); });
NamedValue nv = runtimeValue.GetMember("_message");
if (!nv.IsNull)
{
message = nv.AsString;
}
else
{
message = runtimeValue.Type.FullName;
}
if (thread.LastFunctionWithLoadedSymbols != null)
{
location = thread.LastFunctionWithLoadedSymbols.NextStatement;
}
callstack = "";
int callstackItems = 0;
if (!nv.IsNull)
{
foreach (Function function in thread.Callstack)
{
if (callstackItems >= 100)
{
callstack += "...\n";
break;
}
SourcecodeSegment loc = function.NextStatement;
callstack += function.Name + "()";
if (loc != null)
{
callstack += " - " + loc.SourceFullFilename + ":" + loc.StartLine + "," + loc.StartColumn;
}
callstack += "\n";
callstackItems++;
}
}
type = runtimeValue.Type.FullName;
}
SourcecodeSegment SetIP(bool simulate, string filename, int line, int column)
{
process.AssertPaused();
SourcecodeSegment suggestion = new SourcecodeSegment(filename, line, column, column);
ICorDebugFunction corFunction;
int ilOffset;
if (!suggestion.GetFunctionAndOffset(this.Module, false, out corFunction, out ilOffset))
{
return(null);
}
else
{
if (corFunction.Token != methodProps.Token)
{
return(null);
}
else
{
try {
if (simulate)
{
CorILFrame.CanSetIP((uint)ilOffset);
}
else
{
// invalidates all frames and chains for the current thread
CorILFrame.SetIP((uint)ilOffset);
process.NotifyPaused(new PauseSession(PausedReason.SetIP));
process.Pause(false);
}
} catch {
return(null);
}
return(GetSegmentForOffet((uint)ilOffset));
}
}
}
/// <summary>
/// Returns null on error.
///
/// 'ILStart <= ILOffset <= ILEnd' and this range includes at least
/// the returned area of source code. (May incude some extra compiler generated IL too)
/// </summary>
public SourcecodeSegment GetSegmentForOffet(uint offset)
{
ISymUnmanagedMethod symMethod;
symMethod = this.symMethod;
if (symMethod == null)
{
return(null);
}
uint sequencePointCount = symMethod.SequencePointCount;
SequencePoint[] sequencePoints = symMethod.SequencePoints;
SourcecodeSegment retVal = new SourcecodeSegment();
// Get i for which: offsets[i] <= offset < offsets[i + 1]
// or fallback to first element if offset < offsets[0]
for (int i = (int)sequencePointCount - 1; i >= 0; i--) // backwards
{
if (sequencePoints[i].Offset <= offset || i == 0)
{
// Set inforamtion about current IL range
int codeSize = (int)corFunction.ILCode.Size;
retVal.ILOffset = (int)offset;
retVal.ILStart = (int)sequencePoints[i].Offset;
retVal.ILEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i + 1].Offset : codeSize;
// 0xFeeFee means "code generated by compiler"
// If we are in generated sequence use to closest real one instead,
// extend the ILStart and ILEnd to include the 'real' sequence
int k = i;
// Look ahead for 'real' sequence
while (i + 1 < sequencePointCount && sequencePoints[i].Line == 0xFeeFee)
{
i++;
retVal.ILEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i + 1].Offset : codeSize;
}
// Look back for 'real' sequence
while (i - 1 >= 0 && sequencePoints[i].Line == 0xFeeFee)
{
i--;
retVal.ILStart = (int)sequencePoints[i].Offset;
}
// Wow, there are no 'real' sequences
if (sequencePoints[i].Line == 0xFeeFee)
{
return(null);
}
retVal.ModuleFilename = module.FullPath;
retVal.SourceFullFilename = sequencePoints[i].Document.URL;
/*if (retVal.SourceFullFilename != null && Path.GetFileName(retVal.SourceFullFilename).StartsWith("_temp$"))
* {
* retVal.SourceFullFilename = Path.Combine(Path.GetDirectoryName(retVal.SourceFullFilename),Path.GetFileName(retVal.SourceFullFilename).Substring(6));
* System.Diagnostics.Debug.WriteLine(retVal.SourceFullFilename);
* }*/
retVal.StartLine = (int)sequencePoints[i].Line;
retVal.StartColumn = (int)sequencePoints[i].Column;
retVal.EndLine = (int)sequencePoints[i].EndLine;
retVal.EndColumn = (int)sequencePoints[i].EndColumn;
List <int> stepRanges = new List <int>();
for (int j = 0; j < sequencePointCount; j++)
{
// Step over compiler generated sequences and current statement
// 0xFeeFee means "code generated by compiler"
if (sequencePoints[j].Line == 0xFeeFee || j == i || (j > i && (sequencePoints[j].Line == sequencePoints[i].Line && sequencePoints[i].Document.URL == sequencePoints[j].Document.URL))) // line + document must be same
// Add start offset or remove last end (to connect two ranges into one)
{
if (stepRanges.Count > 0 && stepRanges[stepRanges.Count - 1] == sequencePoints[j].Offset)
{
stepRanges.RemoveAt(stepRanges.Count - 1);
}
else
{
stepRanges.Add((int)sequencePoints[j].Offset);
}
// Add end offset | handle last sequence point
if (j + 1 < sequencePointCount)
{
stepRanges.Add((int)sequencePoints[j + 1].Offset);
}
else
{
stepRanges.Add(codeSize);
}
}
}
retVal.StepRanges = stepRanges.ToArray();
return(retVal);
}
}
return(null);
}
