internal override void Resume(LuaThread thread)
{
// Pop frame off the stack.
Frame frame = thread.UnwoundFrames[thread.UnwoundFrames.Count - 1];
thread.UnwoundFrames.RemoveAt(thread.UnwoundFrames.Count - 1);
// Recover frame information.
int frameBase = frame.FrameBase;
int resultCount = frame.ResultCount;
int fp = frame.FramePointer;
int ip = frame.InstructionPointer;
// Resume the next suspended frame.
try
{
Instruction i = prototype.Instructions[ip - 1];
switch (i.Opcode)
{
case Opcode.Call:
{
// Resume function.
LuaValue function = thread.Stack[fp + i.A];
function.Resume(thread);
if (thread.UnwoundFrames.Count > 0)
{
thread.UnwoundFrames.Add(new Frame(frameBase, resultCount, fp, ip));
return;
}
if (i.C != 0)
{
thread.StackWatermark(fp + prototype.StackSize);
}
else
{
thread.StackWatermark(Math.Max(fp + prototype.StackSize, thread.Top + 1));
}
break;
}
default:
throw new InvalidOperationException();
}
}
catch (Exception e)
{
thread.UnwoundFrames.Add(new Frame(frameBase, resultCount, fp, ip));
throw e;
}
// Returned normally, dispatch the rest of the function.
Dispatch(thread, frameBase, resultCount, fp, ip);
}
