/// <summary> Tryies to intercept the current exception.
/// The intercepted expression stays available through the CurrentException property. </summary>
/// <returns> False, if the exception was already intercepted or
/// if it can not be intercepted. </returns>
public bool InterceptCurrentException()
{
if (!(this.CorThread is ICorDebugThread2))
{
return(false); // Is the debuggee .NET 2.0?
}
if (this.CorThread.GetCurrentException() == null)
{
return(false); // Is there any exception
}
if (this.MostRecentStackFrame == null)
{
return(false); // Is frame available? It is not at StackOverflow
}
try {
// Interception will expire the CorValue so keep permanent reference
currentException.MakeValuePermanent();
((ICorDebugThread2)this.CorThread).InterceptCurrentException(this.MostRecentStackFrame.CorILFrame);
} catch (COMException e) {
// 0x80131C02: Cannot intercept this exception
if ((uint)e.ErrorCode == 0x80131C02)
{
return(false);
}
// 0x80131C33: Interception of the current exception is not legal
if ((uint)e.ErrorCode == 0x80131C33)
{
return(false);
}
// 0x80004005: Error HRESULT E_FAIL has been returned from a call to a COM component.
// Use this to reproduce: new FileIOPermission(PermissionState.Unrestricted).Deny();
if ((uint)e.ErrorCode == 0x80004005)
{
return(false);
}
throw;
} catch (ArgumentException) {
// May happen in release code with does not have any symbols
return(false);
}
process.AsyncContinue(DebuggeeStateAction.Keep, new Thread[] { this /* needed */ }, null);
process.WaitForPause();
return(true);
}
/// <summary> Tryies to intercept the current exception.
/// The intercepted expression stays available through the CurrentException property. </summary>
/// <returns> False, if the exception was already intercepted or
/// if it can not be intercepted. </returns>
public bool InterceptCurrentException()
{
if (!this.CorThread.Is <ICorDebugThread2>())
{
return(false); // Is the debuggee .NET 2.0?
}
if (this.CorThread.CurrentException == null)
{
return(false); // Is there any exception
}
if (this.MostRecentStackFrame == null)
{
return(false); // Is frame available? It is not at StackOverflow
}
try {
// Interception will expire the CorValue so keep permanent reference
currentException.MakeValuePermanent();
this.CorThread.CastTo <ICorDebugThread2>().InterceptCurrentException(this.MostRecentStackFrame.CorILFrame.CastTo <ICorDebugFrame>());
} catch (COMException e) {
// 0x80131C02: Cannot intercept this exception
if ((uint)e.ErrorCode == 0x80131C02)
{
return(false);
}
// 0x80131C33: Interception of the current exception is not legal
if ((uint)e.ErrorCode == 0x80131C33)
{
return(false);
}
throw;
} catch (ArgumentException) {
// May happen in release code with does not have any symbols
return(false);
}
Process.AsyncContinue(DebuggeeStateAction.Keep);
Process.WaitForPause();
return(true);
}
/// <summary> Tryies to intercept the current exception.
/// The intercepted expression stays available through the CurrentException property. </summary>
/// <returns> False, if the exception was already intercepted or
/// if it can not be intercepted. </returns>
public bool InterceptException(Exception exception)
{
if (!(this.CorThread is ICorDebugThread2)) return false; // Is the debuggee .NET 2.0?
if (this.CorThread.GetCurrentException() == null) return false; // Is there any exception
if (this.MostRecentStackFrame == null) return false; // Is frame available? It is not at StackOverflow
// Intercepting an exception on an optimized/NGENed frame seems to sometimes
// freeze the debugee (as of .NET 4.0, it was ok in .NET 2.0)
// eg. Convert.ToInt64(ulong.MaxValue) causes such freeze
StackFrame mostRecentUnoptimized = null;
foreach(StackFrame sf in this.Callstack) {
if (sf.MethodInfo.DebugModule.CorModule2.GetJITCompilerFlags() != 1) { // CORDEBUG_JIT_DEFAULT
mostRecentUnoptimized = sf;
break;
}
}
if (mostRecentUnoptimized == null) return false;
if (exception == null)
exception = currentException;
try {
// Interception will expire the CorValue so keep permanent reference
exception.MakeValuePermanent();
((ICorDebugThread2)this.CorThread).InterceptCurrentException(mostRecentUnoptimized.CorILFrame);
} catch (COMException e) {
// 0x80131C02: Cannot intercept this exception
if ((uint)e.ErrorCode == 0x80131C02)
return false;
// 0x80131C33: Interception of the current exception is not legal
if ((uint)e.ErrorCode == 0x80131C33)
return false;
// 0x80004005: Error HRESULT E_FAIL has been returned from a call to a COM component.
// Use this to reproduce: new FileIOPermission(PermissionState.Unrestricted).Deny();
if ((uint)e.ErrorCode == 0x80004005)
return false;
throw;
} catch (ArgumentException) {
// May happen in release code with does not have any symbols
return false;
}
process.AsyncContinue(DebuggeeStateAction.Keep, new Thread[] { this /* needed */ }, null);
process.WaitForPause();
return true;
}
/// <summary> Tryies to intercept the current exception.
/// The intercepted expression stays available through the CurrentException property. </summary>
/// <returns> False, if the exception was already intercepted or
/// if it can not be intercepted. </returns>
public bool InterceptException(Exception exception)
{
if (!(this.CorThread is ICorDebugThread2))
{
return(false); // Is the debuggee .NET 2.0?
}
if (this.CorThread.GetCurrentException() == null)
{
return(false); // Is there any exception
}
if (this.MostRecentStackFrame == null)
{
return(false); // Is frame available? It is not at StackOverflow
}
// Intercepting an exception on an optimized/NGENed frame seems to sometimes
// freeze the debugee (as of .NET 4.0, it was ok in .NET 2.0)
// eg. Convert.ToInt64(ulong.MaxValue) causes such freeze
StackFrame mostRecentUnoptimized = null;
foreach (StackFrame sf in this.Callstack)
{
if (sf.MethodInfo.DebugModule.CorModule2.GetJITCompilerFlags() != 1) // CORDEBUG_JIT_DEFAULT
{
mostRecentUnoptimized = sf;
break;
}
}
if (mostRecentUnoptimized == null)
{
return(false);
}
if (exception == null)
{
exception = currentException;
}
try {
// Interception will expire the CorValue so keep permanent reference
exception.MakeValuePermanent();
((ICorDebugThread2)this.CorThread).InterceptCurrentException(mostRecentUnoptimized.CorILFrame);
} catch (COMException e) {
// 0x80131C02: Cannot intercept this exception
if ((uint)e.ErrorCode == 0x80131C02)
{
return(false);
}
// 0x80131C33: Interception of the current exception is not legal
if ((uint)e.ErrorCode == 0x80131C33)
{
return(false);
}
// 0x80004005: Error HRESULT E_FAIL has been returned from a call to a COM component.
// Use this to reproduce: new FileIOPermission(PermissionState.Unrestricted).Deny();
if ((uint)e.ErrorCode == 0x80004005)
{
return(false);
}
throw;
} catch (ArgumentException) {
// May happen in release code with does not have any symbols
return(false);
}
process.AsyncContinue(DebuggeeStateAction.Keep, new Thread[] { this /* needed */ }, null);
process.WaitForPause();
return(true);
}