From 38284bc6da801dcc0e1a6b47580a20b5ade32f06 Mon Sep 17 00:00:00 2001
From: George Marques <george@gmarqu.es>
Date: Mon, 28 May 2018 13:38:35 -0300
Subject: [PATCH] Enable singletons to be recognized as constant expressions

Fix #14681
---
 modules/gdscript/gdscript_parser.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index e7b0700e7681..5e93b377d292 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -716,6 +716,14 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s
 					expr = constant;
 					bfn = true;
 				}
+
+				if (!bfn && GDScriptLanguage::get_singleton()->get_named_globals_map().has(identifier)) {
+					//check from singletons
+					ConstantNode *constant = alloc_node<ConstantNode>();
+					constant->value = GDScriptLanguage::get_singleton()->get_named_globals_map()[identifier];
+					expr = constant;
+					bfn = true;
+				}
 			}
 
 			if (!bfn) {