> On Mon, May 12, 2025 at 06:40:43PM GMT, Sami Imseih wrote: > > The static variables was only part of the concern, another part was > > using A_Expr to carry this information, which will have impact on lots > > of unrelated code. > > What would be the problem if A_Expr carries an extra pointer to a List? > It already had other fields, rexpr, lexpr and location that could be no-op.
They can be empty sometimes, but the new fields will be empty 99% of the time. This is a clear sign to me that this informaton does not belong to a node for "infix, prefix, and postfix expressions", don't you think?