QmlCompiler: Convert thisObject to correct type

Amends commit 365b781599993aef933228599eaeb6eb909d9a93.

Change-Id: I5775d634ef4e5204cdec2f440b1992b7272866d2
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

4 files changed, 37 insertions, 1 deletions

diff --git a/src/qmlcompiler/qqmljscodegenerator.cpp b/src/qmlcompiler/qqmljscodegenerator.cpp
index 66b92dd2f1..5823eb1835 100644
--- a/src/qmlcompiler/qqmljscodegenerator.cpp
+++ b/src/qmlcompiler/qqmljscodegenerator.cpp
@@ -2191,7 +2191,10 @@ void QQmlJSCodeGenerator::generate_CreateRestParameter(int argIndex)
 
 void QQmlJSCodeGenerator::generate_ConvertThisToObject()
 {
-    m_body += changedRegisterVariable() + u" = aotContext->thisObject();\n"_s;
+    m_body += changedRegisterVariable() + u" = "_s
+            + conversion(m_typeResolver->qObjectType(), m_state.changedRegister(),
+                         u"aotContext->thisObject()"_s)
+            + u";\n"_s;
 }
 
 void QQmlJSCodeGenerator::generate_LoadSuperConstructor()
diff --git a/tests/auto/qml/qmlcppcodegen/data/CMakeLists.txt b/tests/auto/qml/qmlcppcodegen/data/CMakeLists.txt
index ad8bcf32a9..461c84a76b 100644
--- a/tests/auto/qml/qmlcppcodegen/data/CMakeLists.txt
+++ b/tests/auto/qml/qmlcppcodegen/data/CMakeLists.txt
@@ -190,6 +190,7 @@ set(qml_files
     signal.qml
     signalHandler.qml
     signalIndexMismatch.qml
+    signalsWithLists.qml
     signatureIgnored.qml
     specificParent.qml
     storeElementSideEffects.qml
diff --git a/tests/auto/qml/qmlcppcodegen/data/signalsWithLists.qml b/tests/auto/qml/qmlcppcodegen/data/signalsWithLists.qml
new file mode 100644
index 0000000000..91967e0bc0
--- /dev/null
+++ b/tests/auto/qml/qmlcppcodegen/data/signalsWithLists.qml
@@ -0,0 +1,8 @@
+pragma Strict
+import QtQml
+import TestTypes
+
+Person {
+    property list<var> varlist: [1, "foo", this, undefined, true]
+    property list<QtObject> objlist: [this, null, this]
+}
diff --git a/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp b/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp
index 20a1bac8af..8f6fdbb004 100644
--- a/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp
+++ b/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp
@@ -158,6 +158,7 @@ private slots:
     void shifts();
     void signalHandler();
     void signalIndexMismatch();
+    void signalsWithLists();
     void signatureIgnored();
     void simpleBinding();
     void storeElementSideEffects();
@@ -3310,6 +3311,29 @@ void tst_QmlCppCodegen::signalIndexMismatch()
     QCOMPARE(visualIndexAfterMoveList, QList<QVariant>({ 0, 1, 2 }));
 }
 
+void tst_QmlCppCodegen::signalsWithLists()
+{
+    QQmlEngine engine;
+    QQmlComponent c(&engine, QUrl(u"qrc:/qt/qml/TestTypes/signalsWithLists.qml"_s));
+    QVERIFY2(c.isReady(), qPrintable(c.errorString()));
+    QScopedPointer<QObject> o(c.create());
+    QVERIFY(!o.isNull());
+
+    QVariantList varlist = o->property("varlist").toList();
+    QCOMPARE(varlist.size(), 5);
+    QCOMPARE(varlist[0], QVariant::fromValue(1));
+    QCOMPARE(varlist[1], QVariant::fromValue(u"foo"_s));
+    QCOMPARE(varlist[2], QVariant::fromValue(o.data()));
+    QCOMPARE(varlist[3], QVariant());
+    QCOMPARE(varlist[4], QVariant::fromValue(true));
+
+    QQmlListProperty<QObject> objlist = o->property("objlist").value<QQmlListProperty<QObject>>();
+    QCOMPARE(objlist.count(&objlist), 3);
+    QCOMPARE(objlist.at(&objlist, 0), o.data());
+    QCOMPARE(objlist.at(&objlist, 1), nullptr);
+    QCOMPARE(objlist.at(&objlist, 2), o.data());
+}
+
 void tst_QmlCppCodegen::signatureIgnored()
 {
     QQmlEngine engine;