napoleon fails to parse tilde in :exc: role

[goodmami]

Describe the bug

The Raises: section of a Napoleon docstring fails to properly render exceptions when enclosed in the :exc: role and using tildes for short names.

To Reproduce

>>> from sphinx.ext.napoleon import GoogleDocstring, NumpyDocstring
>>> gdocstring = '''
... Raises:
...     foo.bar.Error
...         If blah
...     ~foo.baz.Error
...         If yadda
...     :exc:`foo.hoge.Error`
...         If naninani
...     :exc:`~foo.piyo.Error`
...         If nantoka
... '''
>>> print('\n'.join(GoogleDocstring(gdocstring).lines()))

:raises foo.bar.Error: If blah
:raises ~foo.baz.Error: If yadda
:raises foo.hoge.Error: If naninani
:raises :exc:`~foo.piyo.Error`: If nantoka

>>> ndocstring = '''
... Raises
... ------
... foo.bar.Error
...     If blah
... ~foo.baz.Error
...     If yadda
... :exc:`foo.hoge.Error`
...     If naninani
... :exc:`~foo.piyo.Error`
...     If nantoka
... '''
>>> print('\n'.join(NumpyDocstring(ndocstring).lines()))

:raises foo.bar.Error: If blah
:raises ~foo.baz.Error: If yadda
:raises foo.hoge.Error: If naninani
:raises :exc:`~foo.piyo.Error`: If nantoka

Expected behavior

I expect the final pattern (foo.piyo.Error above) to render like the second one (foo.baz.Error above).

Environment info

• OS: Pop!_OS (Ubuntu) Linux 19.10
• Python version: 3.7.5
• Sphinx version: 2.3.1
• Sphinx extensions: sphinx.ext.napoleon

Additional context

• Sphinx 2.0: napoleon extension fails to parse exception with tilde #6220 (almost the same)
• sphinx.ext.napoleon renders Raises section differently than the default format #3735 (maybe related)

[tk0miya]

Fixed by #7003 .
Thank you for reporting.