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

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Problem:    Vim9: Asan complains about adding zero to NULL.
Solution:   Check for argument count first.
This commit is contained in:
Bram Moolenaar 2020-10-21 16:49:17 +02:00
parent ca17453e73
commit af7a9066a9
2 changed files with 8 additions and 4 deletions
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2
src/version.c
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@ -750,6 +750,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
1880,
/**/ /**/
1879, 1879,
/**/ /**/

6
src/vim9compile.c
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@ -1475,11 +1475,13 @@ generate_BCALL(cctx_T *cctx, int func_idx, int argcount, int method_call)
isn->isn_arg.shuffle.shfl_up = argoff - 1; isn->isn_arg.shuffle.shfl_up = argoff - 1;
} }
if (argcount > 0)
{
// Check the types of the arguments. // Check the types of the arguments.
argtypes = ((type_T **)stack->ga_data) + stack->ga_len - argcount; argtypes = ((type_T **)stack->ga_data) + stack->ga_len - argcount;
if (argcount > 0 && internal_func_check_arg_types( if (internal_func_check_arg_types(argtypes, func_idx, argcount) == FAIL)
argtypes, func_idx, argcount) == FAIL)
return FAIL; return FAIL;
}
if ((isn = generate_instr(cctx, ISN_BCALL)) == NULL) if ((isn = generate_instr(cctx, ISN_BCALL)) == NULL)
return FAIL; return FAIL;