From adf47e2b57b8fe993bb4727dd22322a93d35bd68 Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Thu, 28 Dec 2017 17:17:58 -0800
Subject: [PATCH] Fix invalid usage of 'extra' field on non-shift parse action

---
 src/runtime/parser.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/runtime/parser.c b/src/runtime/parser.c
index 2f0d459c..2371a1cd 100644
--- a/src/runtime/parser.c
+++ b/src/runtime/parser.c
@@ -797,11 +797,10 @@ static void parser__do_potential_reductions(Parser *self, StackVersion starting_
       ts_language_table_entry(self->language, state, symbol, &entry);
       for (uint32_t i = 0; i < entry.action_count; i++) {
         TSParseAction action = entry.actions[i];
-        if (action.params.extra) continue;
         switch (action.type) {
           case TSParseActionTypeShift:
           case TSParseActionTypeRecover:
-            has_shift_action = true;
+            if (!action.params.extra) has_shift_action = true;
             break;
           case TSParseActionTypeReduce:
             if (action.params.child_count > 0)