refactor: SphinxStandaloneReader should not hold an application object

1 files changed, 3 insertions, 1 deletions

diff --git a/sphinx/testing/restructuredtext.py b/sphinx/testing/restructuredtext.py
index 1da8d9a60..1c3a149ad 100644
--- a/sphinx/testing/restructuredtext.py
+++ b/sphinx/testing/restructuredtext.py
@@ -21,11 +21,13 @@ def parse(app: Sphinx, text: str, docname: str = 'index') -> nodes.document:
     """Parse a string as reStructuredText with Sphinx application."""
     try:
         app.env.temp_data['docname'] = docname
+        reader = SphinxStandaloneReader()
+        reader.setup(app)
         parser = RSTParser()
         parser.set_application(app)
         with sphinx_domains(app.env):
             return publish_doctree(text, path.join(app.srcdir, docname + '.rst'),
-                                   reader=SphinxStandaloneReader(app),
+                                   reader=reader,
                                    parser=parser,
                                    settings_overrides={'env': app.env,
                                                        'gettext_compact': True})