From f29a2e2606317e0964ffed287187afe6bf115626 Mon Sep 17 00:00:00 2001
From: George Marques <george@gmarqu.es>
Date: Tue, 26 May 2020 20:38:44 -0300
Subject: GDScript: Fix assert message when no custom message is set

---
 modules/gdscript/gdscript_function.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'modules/gdscript')

diff --git a/modules/gdscript/gdscript_function.cpp b/modules/gdscript/gdscript_function.cpp
index 92e07ab874..8445eee1fa 100644
--- a/modules/gdscript/gdscript_function.cpp
+++ b/modules/gdscript/gdscript_function.cpp
@@ -1430,11 +1430,14 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 
 #ifdef DEBUG_ENABLED
 				GET_VARIANT_PTR(test, 1);
-				GET_VARIANT_PTR(message, 2);
 				bool result = test->booleanize();
 
 				if (!result) {
-					const String &message_str = *message;
+					String message_str;
+					if (_code_ptr[ip + 2] != 0) {
+						GET_VARIANT_PTR(message, 2);
+						message_str = *message;
+					}
 					if (message_str.empty()) {
 						err_text = "Assertion failed.";
 					} else {
-- 
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