// Construct a stack frame from packed exception or thread frame data.
internal StackFrame(PackedStackFrame frame, bool needFileInfo)
{
offset = frame.offset;
nativeOffset = frame.nativeOffset;
#if CONFIG_REFLECTION
method = MethodBase.GetMethodFromHandle(frame.method);
if(needFileInfo && method != null &&
offset != OFFSET_UNKNOWN)
{
filename = InternalGetDebugInfo
(frame.method, offset, out line, out column);
}
#endif
}
// Unpack a stack trace which was encoded into an exception or thread.
private void UnpackStackTrace(PackedStackFrame[] trace,
int skipFrames, bool needFileInfo)
{
int traceSize, posn;
// Get the size of the packed stack trace.
if(trace != null)
{
traceSize = trace.Length;
}
else
{
traceSize = 0;
}
// Validate the "skipFrames" parameter.
if(skipFrames < 0)
{
skipFrames = 0;
}
else if(skipFrames > traceSize)
{
skipFrames = traceSize;
}
// Convert the trace information into its expanded form.
numFrames = traceSize - skipFrames;
frames = new StackFrame [numFrames];
for(posn = 0; posn < numFrames; ++posn)
{
frames[posn] = new StackFrame(trace[posn + skipFrames],
needFileInfo);
}
}