From 7be067a2e9ab21529d9777bf1858cdd87a6da9fa Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Sun, 20 Sep 2015 13:39:18 -0700
Subject: [PATCH] Guard for null tree in ts_document_edit

---
 src/runtime/document.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/runtime/document.c b/src/runtime/document.c
index cb397769..c77b470a 100644
--- a/src/runtime/document.c
+++ b/src/runtime/document.c
@@ -49,6 +49,8 @@ void ts_document_set_input_string(TSDocument *document, const char *text) {
 }
 
 void ts_document_edit(TSDocument *document, TSInputEdit edit) {
+  if (!document->tree) return;
+
   size_t max_chars = ts_tree_total_size(document->tree).chars;
   if (edit.position > max_chars)
     edit.position = max_chars;