From 1a71d31bf34b0b2b08517903826004ec6fd440e5 Mon Sep 17 00:00:00 2001
From: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Thu, 15 Jul 2021 12:49:58 +0200
Subject: patch 8.2.3162: Vim9: argument types are not checked at compile time

Problem:    Vim9: argument types are not checked at compile time.
Solution:   Add more type checks. (Yegappan Lakshmanan, closes #8560)
---
 src/filepath.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/filepath.c')

diff --git a/src/filepath.c b/src/filepath.c
index 0e29977227..40b5761aee 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -1447,6 +1447,12 @@ f_pathshorten(typval_T *argvars, typval_T *rettv)
     char_u	*p;
     int		trim_len = 1;
 
+    if (in_vim9script()
+	    && (check_for_string_arg(argvars, 0) == FAIL
+		|| (argvars[1].v_type != VAR_UNKNOWN
+		    && check_for_number_arg(argvars, 1) == FAIL)))
+	return;
+
     if (argvars[1].v_type != VAR_UNKNOWN)
     {
 	trim_len = (int)tv_get_number(&argvars[1]);
-- 
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