shift-reduces may be optimized to simply a reduce.

error non-terminals should not be optimized to a reduce since the shift needs to happen.
ksherlock · Dec 31, 2018 · 776197a · 776197a
1 parent b11e73d
commit 776197a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lemon.c b/lemon.c
@@ -3498,7 +3498,7 @@ PRIVATE int compute_action(struct lemon *lemp, struct action *ap)
       /* Since a SHIFT is inherient after a prior REDUCE, convert any
       ** SHIFTREDUCE action with a nonterminal on the LHS into a simple
       ** REDUCE action: */
-      if( ap->sp->index>=lemp->nterminal ){
+      if( ap->sp->index>=lemp->nterminal && ap->sp!=lemp->errsym ){
         act = lemp->minReduce + ap->x.rp->iRule;
       }else{
         act = lemp->minShiftReduce + ap->x.rp->iRule;