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patch 8.2.0207: crash when missing member type on list argument

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Problem:    Crash when missing member type on list argument.
Solution:   Check for invalid type. (closes #5572)
This commit is contained in:
Bram Moolenaar
2020-02-04 21:54:07 +01:00
parent 26e117e9bc
commit bfe1204312
3 changed files with 26 additions and 4 deletions
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23
src/userfunc.c
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@@ -2968,6 +2968,11 @@ ex_function(exarg_T *eap)
if (eap->cmdidx == CMD_def)
{
int lnum_save = SOURCING_LNUM;
// error messages are for the first function line
SOURCING_LNUM = sourcing_lnum_top;
// parse the argument types
ga_init2(&fp->uf_type_list, sizeof(type_T), 5);
@@ -2980,16 +2985,23 @@ ex_function(exarg_T *eap)
fp->uf_arg_types = ALLOC_CLEAR_MULT(type_T *, len);
if (fp->uf_arg_types != NULL)
{
int i;
int i;
type_T *type;
for (i = 0; i < len; ++ i)
{
p = ((char_u **)argtypes.ga_data)[i];
if (p == NULL)
// todo: get type from default value
fp->uf_arg_types[i] = &t_any;
type = &t_any;
else
fp->uf_arg_types[i] = parse_type(&p, &fp->uf_type_list);
type = parse_type(&p, &fp->uf_type_list);
if (type == NULL)
{
SOURCING_LNUM = lnum_save;
goto errret_2;
}
fp->uf_arg_types[i] = type;
}
}
if (varargs)
@@ -3005,6 +3017,11 @@ ex_function(exarg_T *eap)
fp->uf_va_type = &t_any;
else
fp->uf_va_type = parse_type(&p, &fp->uf_type_list);
if (fp->uf_va_type == NULL)
{
SOURCING_LNUM = lnum_save;
goto errret_2;
}
}
varargs = FALSE;
}