refactor: Update type annotations in sphinx.*

5 files changed, 6 insertions, 6 deletions

diff --git a/sphinx/directives/__init__.py b/sphinx/directives/__init__.py
index 9436e9759..8f290d62d 100644
--- a/sphinx/directives/__init__.py
+++ b/sphinx/directives/__init__.py
@@ -36,7 +36,7 @@ nl_escape_re = re.compile(r'\\\n')
 strip_backslash_re = re.compile(r'\\(.)')
 
 
-def optional_int(argument):
+def optional_int(argument: str) -> int:
     """
     Check for an integer argument or None value; raise ``ValueError`` if not.
     """
diff --git a/sphinx/directives/other.py b/sphinx/directives/other.py
index 87d769b41..e4fcc0f5c 100644
--- a/sphinx/directives/other.py
+++ b/sphinx/directives/other.py
@@ -85,14 +85,14 @@ class TocTree(SphinxDirective):
         ret.append(wrappernode)
         return ret
 
-    def parse_content(self, toctree):
+    def parse_content(self, toctree: addnodes.toctree) -> List[Node]:
         suffixes = self.config.source_suffix
 
         # glob target documents
         all_docnames = self.env.found_docs.copy()
         all_docnames.remove(self.env.docname)  # remove current document
 
-        ret = []
+        ret = []  # type: List[Node]
         excluded = Matcher(self.config.exclude_patterns)
         for entry in self.content:
             if not entry:
diff --git a/sphinx/locale/__init__.py b/sphinx/locale/__init__.py
index 82aefe91e..9812355ca 100644
--- a/sphinx/locale/__init__.py
+++ b/sphinx/locale/__init__.py
@@ -197,7 +197,7 @@ def _lazy_translate(catalog: str, namespace: str, message: str) -> str:
     return translator.gettext(message)
 
 
-def get_translation(catalog, namespace='general'):
+def get_translation(catalog: str, namespace: str = 'general') -> Callable:
     """Get a translation function based on the *catalog* and *namespace*.
 
     The extension can use this API to translate the messages on the
diff --git a/sphinx/registry.py b/sphinx/registry.py
index 04b62575a..9a1d68dd6 100644
--- a/sphinx/registry.py
+++ b/sphinx/registry.py
@@ -356,7 +356,7 @@ class SphinxComponentRegistry:
                                attrgetter: Callable[[Any, str, Any], Any]) -> None:
         self.autodoc_attrgettrs[typ] = attrgetter
 
-    def add_css_files(self, filename, **attributes):
+    def add_css_files(self, filename: str, **attributes: str) -> None:
         self.css_files.append((filename, attributes))
 
     def add_js_file(self, filename: str, **attributes: str) -> None:
diff --git a/sphinx/transforms/post_transforms/__init__.py b/sphinx/transforms/post_transforms/__init__.py
index ee459cc56..6d7c3b0eb 100644
--- a/sphinx/transforms/post_transforms/__init__.py
+++ b/sphinx/transforms/post_transforms/__init__.py
@@ -131,7 +131,7 @@ class ReferencesResolver(SphinxPostTransform):
         if not results:
             return None
         if len(results) > 1:
-            def stringify(name, node):
+            def stringify(name: str, node: Element) -> str:
                 reftitle = node.get('reftitle', node.astext())
                 return ':%s:`%s`' % (name, reftitle)
             candidates = ' or '.join(stringify(name, role) for name, role in results)