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diff src/evalvars.c @ 19609:fe827d6267c2 v8.2.0361

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patch 8.2.0361: internal error when using "0" for a callback Commit: https://github.com/vim/vim/commit/14e57909e662a43a42438e2701654af48af49b03 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 7 16:59:25 2020 +0100 patch 8.2.0361: internal error when using "0" for a callback Problem: Internal error when using "0" for a callback. Solution: Give a normal error. (closes https://github.com/vim/vim/issues/5743)
author Bram Moolenaar <Bram@vim.org>
date Sat, 07 Mar 2020 17:00:06 +0100
parents 48e71f948360
children 2ef25a007bb7
line wrap: on
line diff
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -3643,7 +3643,8 @@ f_setbufvar(typval_T *argvars, typval_T 
     callback_T
 get_callback(typval_T *arg)
 {
-    callback_T res;
+    callback_T  res;
+    int		r = OK;
 
     res.cb_free_name = FALSE;
     if (arg->v_type == VAR_PARTIAL && arg->vval.v_partial != NULL)
@@ -3655,17 +3656,21 @@ get_callback(typval_T *arg)
     else
     {
 	res.cb_partial = NULL;
-	if (arg->v_type == VAR_FUNC || arg->v_type == VAR_STRING)
+	if (arg->v_type == VAR_STRING && arg->vval.v_string != NULL
+					       && isdigit(*arg->vval.v_string))
+	    r = FAIL;
+	else if (arg->v_type == VAR_FUNC || arg->v_type == VAR_STRING)
 	{
 	    // Note that we don't make a copy of the string.
 	    res.cb_name = arg->vval.v_string;
 	    func_ref(res.cb_name);
 	}
 	else if (arg->v_type == VAR_NUMBER && arg->vval.v_number == 0)
-	{
 	    res.cb_name = (char_u *)"";
-	}
 	else
+	    r = FAIL;
+
+	if (r == FAIL)
 	{
 	    emsg(_("E921: Invalid callback argument"));
 	    res.cb_name = NULL;