Fix unpacking starred assignment (#71)

Author: felix-hilden

docs/src/release_notes.rst

@@ -13,6 +13,7 @@ Unreleased
 - Declare CSS class as public API (:issue:`3`)
 - Add ability to link to subclass documentation (:issue:`68`)
 - Append a newline to error messages with source code (:issue:`70`)
+- Fix unpacking starred assignment (:issue:`71`)
 - Improve errors with information about the current document (:issue:`71`)
 
 0.6.0 (2021-11-21)

src/sphinx_codeautolink/parse.py

@@ -292,6 +292,9 @@ def _resolve_assignment(self, assignment: Assignment):
                 targets = assign.targets
 
             for target in targets:
+                if target is None:
+                    continue
+
                 if len(target.components) == 1:
                     comp = Component.from_ast(target.components[0])
                     self._overwrite(comp.name)

tests/parse/assign.py

@@ -23,6 +23,12 @@ def test_assign_uses_and_assigns_imported(self):
         refs = [('a', 'a'), ('a', 'a'), ('a', 'a')]
         return s, refs
 
+    @refs_equal
+    def test_unpack_assign_starred(self):
+        s = '*a, b = c'
+        refs = []
+        return s, refs
+
     @refs_equal
     def test_unpack_assign_uses_and_overwrites(self):
         s = 'import a\na, b = a\na'