///////////////////////////////////////////////////////////////////////
public ReturnCode FireTraces(
BreakpointType breakpointType,
Interpreter interpreter,
ITraceInfo traceInfo,
ref Result result
)
{
ReturnCode code = ReturnCode.Ok;
if (traces != null)
{
//
// NOTE: Save the current variable flags.
//
VariableFlags savedFlags = flags;
//
// NOTE: Prevent endless trace recursion.
//
flags |= VariableFlags.NoTrace;
try
{
//
// NOTE: Process each trace (as long as they all continue
// to succeed).
//
foreach (ITrace trace in traces)
{
if ((trace != null) && !EntityOps.IsDisabled(trace))
{
//
// NOTE: If possible, set the Trace property of the
// TraceInfo to the one we are about to execute.
//
if (traceInfo != null)
{
traceInfo.Trace = trace;
}
//
// NOTE: Since variable traces can basically do anything
// they want, we wrap them in a try block to prevent
// exceptions from escaping.
//
interpreter.EnterTraceLevel();
try
{
code = trace.Execute(
breakpointType, interpreter, traceInfo, ref result);
}
catch (Exception e)
{
//
// NOTE: Translate exceptions to a failure return.
//
result = String.Format(
"caught exception while firing variable trace: {0}",
e);
code = ReturnCode.Error;
}
finally
{
interpreter.ExitTraceLevel();
}
//
// NOTE: Check for exception results specially because we
// treat "Break" different from other return codes.
//
if (code == ReturnCode.Break)
{
//
// NOTE: Success; however, skip processing further
// traces for this variable operation.
//
code = ReturnCode.Ok;
break;
}
else if (code != ReturnCode.Ok)
{
//
// NOTE: Some type of failure (or exception), stop
// processing for this variable operation.
//
break;
}
}
}
}
finally
{
//
// NOTE: Restore the saved variable flags.
//
flags = savedFlags;
}
}
return(code);
}