Fix translations in states causing failing assertions

This is a smaller fix suitable for the release branch, merely adding support
for translations to the bytearray compilation step for states and ensuring a
consistent error message when qsTr is used in list models.

The proper fix will be done in dev that eliminates the entire intermediate
QByteArray storage for custom compilers.

Task-number: QTBUG-38492
Change-Id: If5171f16eb742c718e48b8bbcb265b0c241cd5e7
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

2 files changed, 32 insertions, 0 deletions

diff --git a/tests/auto/quick/qquickstates/data/QTBUG-38492.qml b/tests/auto/quick/qquickstates/data/QTBUG-38492.qml
new file mode 100644
index 0000000000..d6d6d81fd3
--- /dev/null
+++ b/tests/auto/quick/qquickstates/data/QTBUG-38492.qml
@@ -0,0 +1,16 @@
+import QtQuick 2.0
+
+Item {
+    id: root
+    property string text;
+
+    states: [
+        State {
+            name: 'apply'
+            PropertyChanges {
+                target: root
+                text: qsTr("Test")
+            }
+        }
+    ]
+}
diff --git a/tests/auto/quick/qquickstates/tst_qquickstates.cpp b/tests/auto/quick/qquickstates/tst_qquickstates.cpp
index 0c9b75636f..6b46ab1fae 100644
--- a/tests/auto/quick/qquickstates/tst_qquickstates.cpp
+++ b/tests/auto/quick/qquickstates/tst_qquickstates.cpp
@@ -148,6 +148,7 @@ private slots:
     void QTBUG_14830();
     void avoidFastForward();
     void revertListBug();
+    void QTBUG_38492();
 };
 
 void tst_qquickstates::initTestCase()
@@ -1626,6 +1627,21 @@ void tst_qquickstates::revertListBug()
     QCOMPARE(rect2->parentItem(), origParent2); //QTBUG-22583 causes rect2's parent item to be origParent1
 }
 
+void tst_qquickstates::QTBUG_38492()
+{
+    QQmlEngine engine;
+
+    QQmlComponent rectComponent(&engine, testFileUrl("QTBUG-38492.qml"));
+    QQuickItem *item = qobject_cast<QQuickItem*>(rectComponent.create());
+    QVERIFY(item != 0);
+
+    QQuickItemPrivate::get(item)->setState("apply");
+
+    QCOMPARE(item->property("text").toString(), QString("Test"));
+
+    delete item;
+}
+
 QTEST_MAIN(tst_qquickstates)
 
 #include "tst_qquickstates.moc"