QMetaMethod: Introduce nameView

The QBAView returning variant of name. It can avoid the check whether
the meta-object is dynamic, as it doesn't promise to keep the data valid
when the meta-object is gone.

Change-Id: Id1fcf1827a30c5d35ea1f40c8a519b88be43c23b
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/kernel/qmetaobject.cpp

@@ -2114,6 +2114,20 @@ QByteArray QMetaMethod::name() const
     return stringData(mobj, QMetaMethodPrivate::get(this)->name());
 }
 
+/*!
+    \since 6.9
+
+    Returns the name of this method.
+    The returned QByteArrayView is valid as long as the meta-object of
+    the class to which the method belongs is valid.
+
+    \sa name
+ */
+QByteArrayView QMetaMethod::nameView() const
+{
+    return QMetaMethodPrivate::get(this)->name();
+}
+
 /*!
     \since 5.0
 

src/corelib/kernel/qmetaobject.h

@@ -22,6 +22,7 @@ class Q_CORE_EXPORT QMetaMethod
 
     QByteArray methodSignature() const;
     QByteArray name() const;
+    QByteArrayView nameView() const;
     const char *typeName() const;
     int returnType() const;
     QMetaType returnMetaType() const;

tests/auto/corelib/kernel/qmetamethod/tst_qmetamethod.cpp

@@ -614,6 +614,7 @@ void tst_QMetaMethod::method()
 
     QByteArray computedName = signature.left(signature.indexOf('('));
     QCOMPARE(method.name(), computedName);
+    QCOMPARE_EQ(method.nameView(), method.name());
 
     QCOMPARE(method.tag(), "");
     QCOMPARE(method.returnType(), returnType);