From 172cbb2d22870dae5e2d3eef892763f50e901d8f Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Wed, 27 Dec 2017 11:18:06 -0800
Subject: [PATCH] Fix infinite loop due to skipping empty tokens during error
 recovery

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

diff --git a/src/runtime/parser.c b/src/runtime/parser.c
index ddd3e3b9..be69a040 100644
--- a/src/runtime/parser.c
+++ b/src/runtime/parser.c
@@ -908,6 +908,7 @@ static void parser__recover(Parser *self, StackVersion version, Tree *lookahead)
   for (unsigned i = 0; i < summary->size; i++) {
     StackSummaryEntry entry = summary->contents[i];
     if (entry.state == ERROR_STATE) continue;
+    if (entry.position.bytes == position.bytes) continue;
     unsigned depth = entry.depth + ts_stack_depth_since_error(self->stack, version);
 
     unsigned new_cost =