diff options
Diffstat (limited to 'parser.cpp')
-rw-r--r-- | parser.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -175,9 +175,11 @@ Cons *ASTGenerator::absorb(Tokenizor *tk) { EvalObj *obj = TO_EVAL(*top_ptr); if (obj->is_sym_obj() && static_cast<SymObj*>(obj)->val == ".") { - improper = true; - if (lst == empty_list || TO_CONS(lst)->cdr != empty_list) + if (improper || + lst == empty_list || + TO_CONS(lst)->cdr != empty_list) throw NormalError(PAR_ERR_IMPROPER_PAIR); + improper = true; lst = TO_CONS(lst)->car; } else |