qdoc: Store read-only attribute to index for C++ properties

The .index files were missing an attribute for C++ properties that
are read-only.

For a PropertyNode, if setWritable() was not explicitly called,
the read-only status was based on whether the property's access
functions included a getter method. When reading nodes from an index,
these access functions are not restored when constructing a
PropertyNode as that information is not needed anymore. A side-effect
of this was that all C++ property nodes read from index were
considered read-only.

QDoc also supports resolving the read-only status for a QML property
based on the associated C++ property of a class that the parent QML
type instantiates. If this instantiated class was read from index,
that meant that the read-only status was resolved incorrectly.

To fix, add writable="false" attribute for all read-only C++ properties
written to index, and explicitly call setWritable() when reading them
back in.

Pick-to: 6.5
Fixes: QTBUG-113015
Change-Id: Iaf8276a892d9a764fed9a67ebd005481c16bba17
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

0 files changed, 0 insertions, 0 deletions