refactor: Update type annotations in sphinx.ext.*

1 files changed, 5 insertions, 3 deletions

diff --git a/sphinx/ext/viewcode.py b/sphinx/ext/viewcode.py
index 09fcd695f..8d035e76a 100644
--- a/sphinx/ext/viewcode.py
+++ b/sphinx/ext/viewcode.py
@@ -54,10 +54,10 @@ def doctree_read(app: Sphinx, doctree: Node) -> None:
     if app.builder.name.startswith("epub") and not env.config.viewcode_enable_epub:
         return
 
-    def has_tag(modname, fullname, docname, refname):
+    def has_tag(modname: str, fullname: str, docname: str, refname: str) -> bool:
         entry = env._viewcode_modules.get(modname, None)  # type: ignore
         if entry is False:
-            return
+            return False
 
         code_tags = app.emit_firstresult('viewcode-find-source', modname)
         if code_tags is None:
@@ -65,7 +65,7 @@ def doctree_read(app: Sphinx, doctree: Node) -> None:
                 analyzer = ModuleAnalyzer.for_module(modname)
             except Exception:
                 env._viewcode_modules[modname] = False  # type: ignore
-                return
+                return False
 
             analyzer.find_tags()
             code = analyzer.code
@@ -81,6 +81,8 @@ def doctree_read(app: Sphinx, doctree: Node) -> None:
             used[fullname] = docname
             return True
 
+        return False
+
     for objnode in doctree.traverse(addnodes.desc):
         if objnode.get('domain') != 'py':
             continue