# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1603292403 -7200
# Node ID 0f90c15a4a2835c2e15841a56f72ecd8d6afa1e4
# Parent  0f6e0cc4e9270718a5df56d338357169d7904c3e
patch 8.2.1880: Vim9: asan complains about adding zero to NULL

Commit: https://github.com/vim/vim/commit/af7a9066a956db23a8bc67bc1f82466e3eff55ea
Author: Bram Moolenaar <Bram@vim.org>
Date:   Wed Oct 21 16:49:17 2020 +0200

    patch 8.2.1880: Vim9: asan complains about adding zero to NULL

    Problem:    Vim9: Asan complains about adding zero to NULL.
    Solution:   Check for argument count first.

diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1880,
+/**/
     1879,
 /**/
     1878,
diff --git a/src/vim9compile.c b/src/vim9compile.c
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -1475,11 +1475,13 @@ generate_BCALL(cctx_T *cctx, int func_id
 	isn->isn_arg.shuffle.shfl_up = argoff - 1;
     }
 
-    // Check the types of the arguments.
-    argtypes = ((type_T **)stack->ga_data) + stack->ga_len - argcount;
-    if (argcount > 0 && internal_func_check_arg_types(
-					argtypes, func_idx, argcount) == FAIL)
+    if (argcount > 0)
+    {
+	// Check the types of the arguments.
+	argtypes = ((type_T **)stack->ga_data) + stack->ga_len - argcount;
+	if (internal_func_check_arg_types(argtypes, func_idx, argcount) == FAIL)
 	    return FAIL;
+    }
 
     if ((isn = generate_instr(cctx, ISN_BCALL)) == NULL)
 	return FAIL;