lib/antlr4/runtime/parser_atn_simulator.rb in antlr4-runtime-0.2.8 vs lib/antlr4/runtime/parser_atn_simulator.rb in antlr4-runtime-0.2.9

@@ -244,11 +244,10 @@
         predicate_dfa_state(d, atn.decision_state(dfa.decision))
         d.prediction = ATN::INVALID_ALT_NUMBER unless d.predicates.nil?
       end
 
       # all adds to dfa are done after we've created full D state
-      d = add_dfa_edge(dfa, prev_d, t, d)
-      d
+      add_dfa_edge(dfa, prev_d, t, d)
     end
 
     def predicate_dfa_state(dfa_state, decision_state) # We need to test all predicates, even in DFA states that
       # uniquely predict alternative.
       nalts = decision_state.number_of_transitions