patch 8.2.1674: Vim9: internal error when using variable that was not set Commit: https://github.com/vim/vim/commit/f0afd9e18227d3459c888584d0658a1837d2aaf8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 13 18:57:47 2020 +0200 patch 8.2.1674: Vim9: internal error when using variable that was not set Problem: Vim9: internal error when using variable that was not set. Solution: Give a meaningful error. (closes https://github.com/vim/vim/issues/6937)

--- a/src/vim9script.c
+++ b/src/vim9script.c
@@ -548,7 +548,11 @@ vim9_declare_scriptvar(exarg_T *eap, cha
 
     // Create the variable with 0/NULL value.
     CLEAR_FIELD(init_tv);
-    init_tv.v_type = type->tt_type;
+    if (type->tt_type == VAR_ANY)
+	// A variable of type "any" is not possible, just use zero instead
+	init_tv.v_type = VAR_NUMBER;
+    else
+	init_tv.v_type = type->tt_type;
     set_var_const(name, type, &init_tv, FALSE, 0);
 
     vim_free(name);