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patch 9.0.1205: crash when handling class that extends another class

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Problem:    Crash when handling class that extends another class with more
            than one object members.
Solution:   Correct pointer computations. (closes #11824)
This commit is contained in:
Bram Moolenaar
2023-01-15 20:49:00 +00:00
parent 912bfee710
commit ae3205aa55
3 changed files with 27 additions and 4 deletions
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9
src/vim9class.c
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@@ -182,10 +182,11 @@ add_members_to_class(
for (int i = 0; i < parent_count; ++i)
{
// parent members need to be copied
*members[i] = parent_members[i];
members[i]->ocm_name = vim_strsave(members[i]->ocm_name);
if (members[i]->ocm_init != NULL)
members[i]->ocm_init = vim_strsave(members[i]->ocm_init);
ocmember_T *m = *members + i;
*m = parent_members[i];
m->ocm_name = vim_strsave(m->ocm_name);
if (m->ocm_init != NULL)
m->ocm_init = vim_strsave(m->ocm_init);
}
if (gap->ga_len > 0)
// new members are moved