From 8f03014e8861df7f49bf4e1dbdfcc20e1611ce35 Mon Sep 17 00:00:00 2001 From: Adrian Neumann Date: Thu, 28 Sep 2017 10:19:57 +0200 Subject: eval/decode.c: Avoid NULL arg to memchr() #7332 Clang complains because memchr has undefined behavior if the ptr is NULL, even if len==0. Helped-by: Nikolai Aleksandrovich Pavlov --- test/functional/eval/json_functions_spec.lua | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'test/functional/eval/json_functions_spec.lua') diff --git a/test/functional/eval/json_functions_spec.lua b/test/functional/eval/json_functions_spec.lua index 4d34cde849..8dcaea806e 100644 --- a/test/functional/eval/json_functions_spec.lua +++ b/test/functional/eval/json_functions_spec.lua @@ -776,4 +776,11 @@ describe('json_encode() function', function() it('can dump NULL dictionary', function() eq('{}', eval('json_encode(v:_null_dict)')) end) + + it('fails to parse NULL strings and lists', function() + eq('Vim(call):E474: Attempt to decode a blank string', + exc_exec('call json_decode($XXX_UNEXISTENT_VAR_XXX)')) + eq('Vim(call):E474: Attempt to decode a blank string', + exc_exec('call json_decode(v:_null_list)')) + end) end) -- cgit