//
// IEnumerator interface
//
public override bool MoveNext()
{
// This variable is used to store the child frame we are currently skipping for. It's also
// used as a flag to indicate whether this method should return or continue to the next frame.
CorFrame childFrame = null;
bool bMoreToWalk = false;
while (true)
{
// Check to see if the frame we have just given back is a child frame.
if (m_init)
{
CorFrame prevFrame = this.Current;
if ((prevFrame != null) && prevFrame.IsChild)
{
childFrame = prevFrame;
}
}
bMoreToWalk = MoveNextWorker();
if (!bMoreToWalk)
{
// Unless there is a catastrophic failure, we should always find the parent frame for any
// child frame.
Debug.Assert(childFrame == null);
break;
}
if (childFrame != null)
{
// We are currently skipping frames due to a child frame.
// Check whether the current frame is the parent frame.
CorFrame currentFrame = this.Current;
if ((currentFrame != null) && childFrame.IsMatchingParentFrame(currentFrame))
{
// We have reached the parent frame. We should skip the parent frame as well, so clear
// childFrame and unwind to the caller of the parent frame. We will break out of the
// loop on the next iteration.
childFrame = null;
}
continue;
}
break;
}
return(bMoreToWalk);
}
