QSqlIndex: implement member swap() and use a macro for move-assignment

Also declare the type as shared using Q_DECLARE_SHARED

Found during Qt 6.6 API review.

This commit amends 46e909a37a38289a601333ae6f205e8946152287.

[ChangeLog][QtSql] QSqlIndex is now a relocatable type.

Pick-to: 6.6
Change-Id: I78394cba082b4df2e4d8a6aab8e8e87f2340962c
Reviewed-by: Marc Mutz <marc.mutz@qt.io>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/sql/kernel/qsqlindex.h b/src/sql/kernel/qsqlindex.h
index 67eeb2a9e0..f011e64353 100644
--- a/src/sql/kernel/qsqlindex.h
+++ b/src/sql/kernel/qsqlindex.h
@@ -20,7 +20,14 @@ public:
     QSqlIndex(QSqlIndex &&other) noexcept = default;
     ~QSqlIndex();
     QSqlIndex &operator=(const QSqlIndex &other);
-    QSqlIndex &operator=(QSqlIndex &&other) = default;
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QSqlIndex)
+
+    void swap(QSqlIndex &other) noexcept {
+        QSqlRecord::swap(other);
+        cursor.swap(other.cursor);
+        nm.swap(other.nm);
+        sorts.swap(other.sorts);
+    };
 
     void setCursorName(const QString &cursorName);
     inline QString cursorName() const { return cursor; }
@@ -41,6 +48,8 @@ private:
     QList<bool> sorts;
 };
 
+Q_DECLARE_SHARED(QSqlIndex)
+
 QT_END_NAMESPACE
 
 #endif // QSQLINDEX_H