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diff src/userfunc.c @ 23996:c192411b27e8 v8.2.2540

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patch 8.2.2540: Vim9: no error for using script var name for argument Commit: https://github.com/vim/vim/commit/b4893b84507570f24af32597716ffb67fb0ef24e Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 21 22:20:24 2021 +0100 patch 8.2.2540: Vim9: no error for using script var name for argument Problem: Vim9: no error for using script var name for argument. Solution: Check for this error. (closes https://github.com/vim/vim/issues/7868)
author Bram Moolenaar <Bram@vim.org>
date Sun, 21 Feb 2021 22:30:05 +0100
parents 686af23ec132
children 90fbe1a3b23c
line wrap: on
line diff
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -80,6 +80,14 @@ one_function_arg(
 	    semsg(_("E125: Illegal argument: %s"), arg);
 	return arg;
     }
+
+    // Vim9 script: cannot use script var name for argument.
+    if (argtypes != NULL && script_var_exists(arg, p - arg, FALSE, NULL) == OK)
+    {
+	semsg(_(e_variable_already_declared_in_script), arg);
+	return arg;
+    }
+
     if (newargs != NULL && ga_grow(newargs, 1) == FAIL)
 	return arg;
     if (newargs != NULL)