patch 8.2.0371: crash with combination of terminal popup and autocmd
Problem: Crash with combination of terminal popup and autocmd.
Solution: Disallow closing a popup that is the current window. Add a check
that the current buffer is valid. (closes #5754)
diff --git a/src/macros.h b/src/macros.h
index a7964d8..803b891 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -364,8 +364,11 @@
# define ESTACK_CHECK_SETUP estack_len_before = exestack.ga_len;
# define ESTACK_CHECK_NOW if (estack_len_before != exestack.ga_len) \
siemsg("Exestack length expected: %d, actual: %d", estack_len_before, exestack.ga_len);
+# define CHECK_CURBUF if (curwin != NULL && curwin->w_buffer != curbuf) \
+ iemsg("curbuf != curwin->w_buffer")
#else
# define ESTACK_CHECK_DECLARATION
# define ESTACK_CHECK_SETUP
# define ESTACK_CHECK_NOW
+# define CHECK_CURBUF
#endif