QML engine: fix conversion scores for sequences in CallOverloaded

A QV4Sequence can be converted back to its underlying container; we
therefore should give the conversion of QV4Sequence to container a high
score if metaTypeForSequence and the target metatype agree.
This has a larger effect in Qt 6 than in Qt 5, as we now can have new
sequence types for any (QMeta)Container.

Fixes: QTBUG-87616
Change-Id: I2bf02ebadbf9b707719d09edaf14b112eb2caf4f
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmlecmascript/testtypes.h b/tests/auto/qml/qqmlecmascript/testtypes.h
index dead289b15..878dd79466 100644
--- a/tests/auto/qml/qqmlecmascript/testtypes.h
+++ b/tests/auto/qml/qqmlecmascript/testtypes.h
@@ -1748,6 +1748,27 @@ public slots:
     void selection(const QItemSelection &, int = 0) { funcCalled = QLatin1String("QItemSelection"); }
 };
 
+class SequenceConvertObject : public QObject
+{
+    Q_OBJECT
+
+public:
+    QString funcCalled;
+public slots:
+
+    Q_INVOKABLE QStringList getValues() const {
+        return QStringList() << QStringLiteral("one") << QStringLiteral("two");
+    }
+
+    Q_INVOKABLE void call(const QStringList &) {
+        funcCalled = QLatin1String("stringlist");
+    }
+
+    Q_INVOKABLE void call(const QList<int> &) {
+        funcCalled = QLatin1String("intlist");
+    }
+};
+
 struct ClassWithQProperty2 : public QObject
 {
     Q_OBJECT