From 4a5b989755cc7e92a3d9045c37d272ee114c702a Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@qt.io>
Date: Thu, 8 Apr 2021 13:50:46 +0200
Subject: Do not auto-clean components with live inline components

The inline components do not hold a strong reference to their outer type
because that would be a reference cycle.

Fixes: QTBUG-92236
Change-Id: I6d76a114352653210f0ece6c198cf761d3b4eda1
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit d0d4cc528ba9e3c39c15a2292066dac1d457abd5)
---
 tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp')

diff --git a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
index e247a139ec..de8b2ef7eb 100644
--- a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
+++ b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
@@ -48,6 +48,7 @@
 #include <private/qqmlscriptstring_p.h>
 #include <private/qqmlvmemetaobject_p.h>
 #include <private/qqmlcomponent_p.h>
+#include <private/qqmltype_p_p.h>
 
 #include "testtypes.h"
 #include "testhttpserver.h"
@@ -331,6 +332,7 @@ private slots:
     void arrayToContainer();
     void qualifiedScopeInCustomParser();
     void accessNullPointerPropertyCache();
+    void bareInlineComponent();
 
 private:
     QQmlEngine engine;
@@ -5813,6 +5815,32 @@ void tst_qqmllanguage::accessNullPointerPropertyCache()
     QVERIFY(!obj.isNull());
 }
 
+void tst_qqmllanguage::bareInlineComponent()
+{
+    QQmlEngine engine;
+
+    QQmlComponent c(&engine, testFileUrl("bareInline.qml"));
+    QVERIFY2(c.isReady(), qPrintable(c.errorString()));
+    QScopedPointer<QObject> o(c.create());
+    QVERIFY(!o.isNull());
+
+    QQmlMetaType::freeUnusedTypesAndCaches();
+
+    bool tab1Found = false;
+    const auto types = QQmlMetaType::qmlTypes();
+    for (const QQmlType &type : types) {
+        if (type.elementName() == QStringLiteral("Tab1")) {
+            QVERIFY(type.module().isEmpty());
+            tab1Found = true;
+            const auto ics = type.priv()->objectIdToICType;
+            QVERIFY(ics.size() > 0);
+            for (const QQmlType &ic : ics)
+                QVERIFY(ic.containingType() == type);
+        }
+    }
+    QVERIFY(tab1Found);
+}
+
 QTEST_MAIN(tst_qqmllanguage)
 
 #include "tst_qqmllanguage.moc"
-- 
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