public int AddLocVar(string name)
{
var newVar = new LocVarInfo
{
Name = name,
Prev = _locNames.ContainsKey(name) ? _locNames[name] : null,
ScopeLv = _scopeLv,
Slot = AllocReg()
};
_locVars.Add(newVar);
_locNames[name] = newVar;
return(newVar.Slot);
}
public void RemoveLocVar(LocVarInfo locVarInfo)
{
FreeReg();
if (locVarInfo.Prev is null)
{
_locNames.Remove(locVarInfo.Name);
}
else if (locVarInfo.Prev.ScopeLv == locVarInfo.ScopeLv)
{
RemoveLocVar(locVarInfo.Prev);
}
else
{
_locNames[locVarInfo.Name] = locVarInfo.Prev;
}
}