From 7d42293d2fcf466ebf2c99f49b4d15a73947691e Mon Sep 17 00:00:00 2001
From: Michael Winkelmann <Michael.winkelmann@qt.io>
Date: Wed, 5 Jul 2017 14:43:30 +0200
Subject: [PATCH] QVariant: Print a warning when deserialized user type is
 unknown
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The deserialized user type is now shown to the user to figure which
QMetaType registration is missing.

Change-Id: I4b7624827e479b1bea67065ce3542183b7355165
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
---
 src/corelib/kernel/qvariant.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 17c94e4e9d..f114a84d22 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -2070,6 +2070,7 @@ void QVariant::load(QDataStream &s)
         typeId = QMetaType::type(name.constData());
         if (typeId == QMetaType::UnknownType) {
             s.setStatus(QDataStream::ReadCorruptData);
+            qWarning("QVariant::load: unknown user type with name %s.", name.constData());
             return;
         }
     }