private bool CanRestore(Stack <ShiftReduceParser <ValueType> .ParserState> parserstates)
{
if (parserstates.Count > 0)
{
ParserState s = parserstates.Peek();
Xacc.CodeModel.Location l = tokenstream[s.tokenpos].Location;
if (lastpin == null)
{
return(true);
}
else
{
if (l > lastpin)
{
return(true);
}
else
{
parserstates.Clear();
reducestack.Clear();
AfterPinRestore();
pinrescue++;
return(false);
}
}
}
return(false);
}
protected Xacc.CodeModel.Location Pin(Xacc.CodeModel.Location loc)
{
return(lastpin = loc);
}
