From 8d3a5bc458d1a605d117bf97631e4501189d1c2a Mon Sep 17 00:00:00 2001
From: Aaron Franke <arnfranke@yahoo.com>
Date: Mon, 12 Jul 2021 22:28:17 -0400
Subject: [PATCH] [3.x] Add generics to PackedScene instance

---
 binding_generator.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/binding_generator.py b/binding_generator.py
index da4bb61c..0cc0fad0 100644
--- a/binding_generator.py
+++ b/binding_generator.py
@@ -381,6 +381,20 @@ def generate_class_header(used_classes, c, use_template_get_node):
         source.append("\treturn get_node_internal(path);")
         source.append("}")
         source.append("")
+    elif use_template_get_node and class_name == "PackedScene":
+        source.append("\ttemplate <class T = Node>")
+        source.append("\tT *instance(const int64_t edit_state = 0) const {")
+        source.append("\t\treturn Object::cast_to<T>(instance(edit_state));")
+        source.append("\t}")
+
+        source.append("};")
+        source.append("")
+
+        source.append("template <>")
+        source.append("inline Node *PackedScene::instance<Node>(const int64_t edit_state) const {")
+        source.append("\treturn instance(edit_state);")
+        source.append("}")
+        source.append("")
     else:
         source.append("};")
         source.append("")