patch 8.1.1591: on error garbage collection may free memory in use
Problem: On error garbage collection may free memory in use.
Solution: Reset may_garbage_collect when evaluating expression mapping.
Add tests. (Ozaki Kiichi, closes #4579)
diff --git a/src/getchar.c b/src/getchar.c
index 80e98ec..f6734a7 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -2540,13 +2540,18 @@
*/
if (mp->m_expr)
{
- int save_vgetc_busy = vgetc_busy;
+ int save_vgetc_busy = vgetc_busy;
+ int save_may_garbage_collect = may_garbage_collect;
vgetc_busy = 0;
+ may_garbage_collect = FALSE;
+
save_m_keys = vim_strsave(mp->m_keys);
save_m_str = vim_strsave(mp->m_str);
s = eval_map_expr(save_m_str, NUL);
+
vgetc_busy = save_vgetc_busy;
+ may_garbage_collect = save_may_garbage_collect;
}
else
#endif