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-rw-r--r--src/corelib/kernel/qmetaobject.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index 24cc58829c8..c7e50788b45 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -469,6 +469,33 @@ QMetaType QMetaObject::metaType() const
}
}
+static inline QByteArrayView objectMetaObjectHash(const QMetaObject *m)
+{
+ // metaObjectHash didn't exist before revision 14
+ if (QT_VERSION < QT_VERSION_CHECK(7, 0, 0) && priv(m->d.data)->revision < 14)
+ return {};
+ const auto index = priv(m->d.data)->metaObjectHashIndex;
+ if (index == -1)
+ return {};
+ return stringDataView(m, index);
+}
+
+/*!
+ \since 6.11
+
+ Returns the revisioned hash of the contents of this QMetaObject or nullptr.
+
+ The hash has the following format <hash_revision>$<hash_b64>, where
+ hash_revision is an integer and hash_b64 is the base64 encoding of the
+ hash.
+
+ Note that only hashes of the same revision should be compared.
+*/
+const char *QMetaObject::metaObjectHash() const
+{
+ return objectMetaObjectHash(this).constData();
+}
+
/*!
Returns the method offset for this class; i.e. the index position
of this class's first member function.