From 9e0203a58a5d242e6c4c40576dbaff02721aa914 Mon Sep 17 00:00:00 2001
From: kobewi <kobewi4e@gmail.com>
Date: Thu, 8 May 2025 17:29:15 +0200
Subject: [PATCH] Don't synchronize scripts with errors

---
 editor/plugins/script_editor_plugin.cpp | 11 +++++++++++
 modules/gdscript/gdscript_editor.cpp    |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/editor/plugins/script_editor_plugin.cpp b/editor/plugins/script_editor_plugin.cpp
index 1963877703d..f0566cf5918 100644
--- a/editor/plugins/script_editor_plugin.cpp
+++ b/editor/plugins/script_editor_plugin.cpp
@@ -1099,6 +1099,17 @@ void ScriptEditor::_mark_built_in_scripts_as_saved(const String &p_parent_path)
 
 void ScriptEditor::trigger_live_script_reload(const String &p_script_path) {
 	if (!script_paths_to_reload.has(p_script_path)) {
+		Ref<Script> reloaded_script = ResourceCache::get_ref(p_script_path);
+		if (reloaded_script.is_null()) {
+			reloaded_script = ResourceLoader::load(p_script_path);
+		}
+		if (reloaded_script.is_valid()) {
+			if (!reloaded_script->get_language()->validate(reloaded_script->get_source_code(), p_script_path)) {
+				// Script has errors, don't live reload.
+				return;
+			}
+		}
+
 		script_paths_to_reload.append(p_script_path);
 	}
 	if (!pending_auto_reload && auto_reload_running_scripts) {
diff --git a/modules/gdscript/gdscript_editor.cpp b/modules/gdscript/gdscript_editor.cpp
index c8f51b25f50..2b5982f75e1 100644
--- a/modules/gdscript/gdscript_editor.cpp
+++ b/modules/gdscript/gdscript_editor.cpp
@@ -177,7 +177,7 @@ bool GDScriptLanguage::validate(const String &p_script, const String &p_path, Li
 			}
 		}
 		return false;
-	} else {
+	} else if (r_functions) {
 		const GDScriptParser::ClassNode *cl = parser.get_tree();
 		HashMap<int, String> funcs;