From: Bram Moolenaar <Bram@vim.org>
Date: Wed, 1 Apr 2020 20:36:49 +0000 (+0200)
Subject: patch 8.2.0494: Vim9: asan error
X-Git-Tag: v8.2.0494
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ea94fbe83bca69eda4f03e92ecf581d0343c7b47;p=vim

patch 8.2.0494: Vim9: asan error

Problem:    Vim9: asan error.
Solution:   Only get the type when there is one.
---

diff --git a/src/version.c b/src/version.c
index 3686a1d51..de0565a80 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    494,
 /**/
     493,
 /**/
diff --git a/src/vim9compile.c b/src/vim9compile.c
index ce1ca76c2..92d136279 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -3767,7 +3767,8 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
 	    goto theend;
 
 	stack = &cctx->ctx_type_stack;
-	stacktype = ((type_T **)stack->ga_data)[stack->ga_len - 1];
+	stacktype = stack->ga_len == 0 ? &t_void
+			      : ((type_T **)stack->ga_data)[stack->ga_len - 1];
 	if (idx >= 0 && (is_decl || !has_type))
 	{
 	    lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;