commit 4c17ad94ecb0a0fb26d6fface2614bc5172dea18
author Bram Moolenaar <Bram@vim.org> Mon Apr 27 22:47:51 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Mon Apr 27 22:47:51 2020 +0200
tree 3b26b172e38be6c1d762c58d7517ac79e21e0a0f
parent db93495d276642f63f80471fbcb900b9aa1e9e42

patch 8.2.0650: Vim9: script function can be deleted

Problem:    Vim9: script function can be deleted.
Solution:   Disallow deleting script function.  Delete functions when sourcing
            a script again.

src/vim9execute.c

diff --git a/src/vim9execute.c b/src/vim9execute.c
index 9ea7daf..5251d48 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -400,7 +400,7 @@
 	return call_bfunc(func_idx, argcount, ectx);
     }
 
-    ufunc = find_func(name, NULL);
+    ufunc = find_func(name, FALSE, NULL);
     if (ufunc != NULL)
 	return call_ufunc(ufunc, argcount, ectx, iptr);
 
@@ -1944,8 +1944,9 @@
     int		current;
     int		line_idx = 0;
     int		prev_current = 0;
+    int		is_global = FALSE;
 
-    fname = trans_function_name(&arg, FALSE,
+    fname = trans_function_name(&arg, &is_global, FALSE,
 	     TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD | TFN_NO_DEREF, NULL, NULL);
     if (fname == NULL)
     {
@@ -1953,14 +1954,14 @@
 	return;
     }
 
-    ufunc = find_func(fname, NULL);
+    ufunc = find_func(fname, is_global, NULL);
     if (ufunc == NULL)
     {
 	char_u *p = untrans_function_name(fname);
 
 	if (p != NULL)
 	    // Try again without making it script-local.
-	    ufunc = find_func(p, NULL);
+	    ufunc = find_func(p, FALSE, NULL);
     }
     vim_free(fname);
     if (ufunc == NULL)