sym_link *structElemType (sym_link *, value *);
symbol *getStructElement (structdef *, symbol *);
sym_link *computeType (sym_link *, sym_link *);
sym_link *structElemType (sym_link *, value *);
symbol *getStructElement (structdef *, symbol *);
sym_link *computeType (sym_link *, sym_link *);