From 8088e9e6acb3d8cec00610e9345596bbabed6923 Mon Sep 17 00:00:00 2001
From: George Marques <george@gmarqu.es>
Date: Tue, 18 Aug 2020 10:36:01 -0300
Subject: [PATCH] GDScript: Add script to cache on reload

This ensures that scripts created without a resource loader are properly
included in the cache (such as builtin scripts) and are not tried to be
loaded from the disk.
---
 modules/gdscript/gdscript.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp
index 9170255c021f..541d46a2af93 100644
--- a/modules/gdscript/gdscript.cpp
+++ b/modules/gdscript/gdscript.cpp
@@ -596,6 +596,21 @@ Error GDScript::reload(bool p_keep_state) {
 		return OK;
 	}
 
+	{
+		String source_path = path;
+		if (source_path.empty()) {
+			source_path = get_path();
+		}
+		if (!source_path.empty()) {
+			MutexLock lock(GDScriptCache::singleton->lock);
+			Ref<GDScript> self(this);
+			if (!GDScriptCache::singleton->shallow_gdscript_cache.has(source_path)) {
+				GDScriptCache::singleton->shallow_gdscript_cache[source_path] = self;
+				self->unreference();
+			}
+		}
+	}
+
 	valid = false;
 	GDScriptParser parser;
 	Error err = parser.parse(source, path, false);