shiboken6: Document missing namespace attributes

Amends 91cb27a2a7180e9c05b806d870b266fa31bef041

Pick-to: 6.2
Change-Id: Id68305dbe40727e85c7d483e5692d0329bee2f02
Reviewed-by: Shyamnath Premnadh <Shyamnath.Premnadh@qt.io>
(cherry picked from commit 7088823da7c04a433b140f070f18dba0d744f95f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/sources/shiboken6/doc/typesystem_specifying_types.rst b/sources/shiboken6/doc/typesystem_specifying_types.rst
index 7152c70af..406d51650 100644
--- a/sources/shiboken6/doc/typesystem_specifying_types.rst
+++ b/sources/shiboken6/doc/typesystem_specifying_types.rst
@@ -205,6 +205,8 @@ child nodes.
             generate-using="yes | no"
             package="..."
             since="..."
+            extends = "..."
+            files = "..."
             revision="..." />
     </typesystem>
 
@@ -235,6 +237,16 @@ The *optional* **since** value is used to specify the API version of this type.
 The **revision** attribute can be used to specify a revision for each type, easing the
 production of ABI compatible bindings.
 
+The *optional* **extends** attribute specifies the module name where the given
+namespace first occurs in case of a namespace spanning several modules. For
+example, in Qt, the namespace ``Qt`` first occurs in the ``QtCore`` module and
+is further populated in the ``QtGui`` module. ``QtGui.Qt`` will then be
+generated extending ``QtCore.Qt`` if **extends** is specified.
+
+The *optional* **file** attribute specifies a regular expression matching the
+include files whose contents are to be associated with the current module in
+case of a namespace spanning several modules.
+
 .. _enum-type:
 
 enum-type