From 3025431c81daac873e69a71aee695ebfd00504f7 Mon Sep 17 00:00:00 2001
From: ZyX <kp-pav@yandex.ru>
Date: Sun, 4 Dec 2016 22:59:25 +0300
Subject: eval: Make sure that v:_null_dict does not crash dictwatcher*()

Ref #4615
---
 src/nvim/eval/typval.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index 243e738c50..8c11f4bd8f 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -808,6 +808,9 @@ void tv_dict_watcher_add(dict_T *const dict, const char *const key_pattern,
                          const size_t key_pattern_len, Callback callback)
   FUNC_ATTR_NONNULL_ARG(2)
 {
+  if (dict == NULL) {
+    return;
+  }
   DictWatcher *const watcher = xmalloc(sizeof(DictWatcher));
   watcher->key_pattern = xmemdupz(key_pattern, key_pattern_len);
   watcher->key_pattern_len = key_pattern_len;
-- 
cgit