From e56f5d5c910f076fd93af71ada7550f441207f45 Mon Sep 17 00:00:00 2001
From: George Marques <george@gmarqu.es>
Date: Wed, 10 Apr 2019 18:05:34 -0300
Subject: [PATCH] GDScript: Don't allow built-in scripts to use class_name

---
 modules/gdscript/gdscript_parser.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index ddf880d36c7..6ef906b98dc 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -3500,6 +3500,10 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 					_set_error("'class_name' is only valid for the main class namespace.");
 					return;
 				}
+				if (self_path.empty()) {
+					_set_error("'class_name' not allowed in built-in scripts.");
+					return;
+				}
 				if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) {
 
 					_set_error("'class_name' syntax: 'class_name <UniqueName>'");