From f5a8637e7aa6561db811548b419839b5bfa32fd4 Mon Sep 17 00:00:00 2001
From: Alexander Holland <alexander.holland@live.de>
Date: Sat, 8 Sep 2018 03:14:13 +0200
Subject: Fix undo redo not showing errors

---
 core/undo_redo.cpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'core/undo_redo.cpp')

diff --git a/core/undo_redo.cpp b/core/undo_redo.cpp
index 3d90608dd7..c2174556d8 100644
--- a/core/undo_redo.cpp
+++ b/core/undo_redo.cpp
@@ -268,7 +268,24 @@ void UndoRedo::_process_operation_list(List<Operation>::Element *E) {
 
 			case Operation::TYPE_METHOD: {
 
-				obj->call(op.name, VARIANT_ARGS_FROM_ARRAY(op.args));
+				Vector<const Variant *> argptrs;
+				argptrs.resize(VARIANT_ARG_MAX);
+				int argc = 0;
+
+				for (int i = 0; i < VARIANT_ARG_MAX; i++) {
+					if (op.args[i].get_type() == Variant::NIL) {
+						break;
+					}
+					argptrs.write[i] = &op.args[i];
+					argc++;
+				}
+				argptrs.resize(argc);
+
+				Variant::CallError ce;
+				obj->call(op.name, (const Variant **)argptrs.ptr(), argc, ce);
+				if (ce.error != Variant::CallError::CALL_OK) {
+					ERR_PRINTS("Error calling method from signal '" + String(op.name) + "': " + Variant::get_call_error_text(obj, op.name, (const Variant **)argptrs.ptr(), argc, ce));
+				}
 #ifdef TOOLS_ENABLED
 				Resource *res = Object::cast_to<Resource>(obj);
 				if (res)
-- 
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