commit 5bca906b307728fa74a112914dc55b424d512d39
author Yegappan Lakshmanan <yegappan@yahoo.com> Sat Jul 24 21:33:26 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jul 24 21:33:26 2021 +0200
tree 46c144eecea8b23bf66138a46029afa6f275bf85
parent 7d60384a00755e5c0112cebeb5e232fc133c9eca

patch 8.2.3215: Vim9: argument types are not checked at compile time

Problem:    Vim9: argument types are not checked at compile time.
Solution:   Add several more type checks. Sort the argument lists.
            (Yegappan Lakshmanan, closes #8626)

src/filepath.c

diff --git a/src/filepath.c b/src/filepath.c
index 900c5bd..989f56e 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -1602,6 +1602,13 @@
 
     if (rettv_list_alloc(rettv) == FAIL)
 	return;
+
+    if (in_vim9script()
+	    && (check_for_string_arg(argvars, 0) == FAIL
+		|| (argvars[1].v_type != VAR_UNKNOWN
+		    && check_for_opt_dict_arg(argvars, 2) == FAIL)))
+	return;
+
     path = tv_get_string(&argvars[0]);
     expr = &argvars[1];
 
@@ -1648,6 +1655,13 @@
 
     if (rettv_list_alloc(rettv) == FAIL)
 	return;
+
+    if (in_vim9script()
+	    && (check_for_string_arg(argvars, 0) == FAIL
+		|| (argvars[1].v_type != VAR_UNKNOWN
+		    && check_for_opt_dict_arg(argvars, 2) == FAIL)))
+	return;
+
     path = tv_get_string(&argvars[0]);
     expr = &argvars[1];