Fixed false positive for compact argument docs with container types

pylint/extensions/_check_docs_utils.py

@@ -206,6 +206,11 @@ class Docstring(object):
 class SphinxDocstring(Docstring):
     re_type = r"[\w\.]+"
+    re_simple_container_type = r"""
+        {type}                        # a container type
+        [\(\[] [^\n\s]+ [\)\]]        # with the contents of the container
+    """.format(type=re_type)
+
     re_xref = r"""
         (?::\w+:)?                    # optional tag
         `{0}`                         # what to reference
@@ -221,14 +226,14 @@ class SphinxDocstring(Docstring):
         \s+                     # whitespace
         (?:                     # optional type declaration
-        ({type})
+        ({type}|{container_type})
         \s+
         )?
         (\w+)                   # Parameter name
         \s*                     # whitespace
         :                       # final colon
-        """.format(type=re_type)
+        """.format(type=re_type, container_type=re_simple_container_type)
     re_param_in_docstring = re.compile(re_param_raw, re.X | re.S)
     re_type_raw = r"""

pylint/test/extensions/test_check_docs.py

@@ -1349,11 +1349,17 @@ class TestParamDocChecker(CheckerTestCase):
         with self.assertNoMessages():
             self.checker.visit_functiondef(node)
-    COMPLEX_TYPES = [
-        'int or str',
+    CONTAINER_TYPES = [
+        'dict(str,str)',
+        'dict[str,str]',
+        'tuple(int)',
+        'list[tokenize.TokenInfo]',
+    ]
+
+    COMPLEX_TYPES = CONTAINER_TYPES + [
         'dict(str, str)',
         'dict[str, str]',
-        'tuple(int)',
+        'int or str',
         'tuple(int or str)',
         'tuple(int) or list(int)',
         'tuple(int or str) or list(int or str)',
@@ -1414,6 +1420,22 @@ class TestParamDocChecker(CheckerTestCase):
         with self.assertNoMessages():
             self.checker.visit_functiondef(node)
+    @pytest.mark.parametrize('container_type', CONTAINER_TYPES)
+    def test_finds_compact_container_types_sphinx(self, container_type):
+        node = astroid.extract_node('''
+        def my_func(named_arg):
+            """The docstring
+
+            :param {0} named_arg: Returned
+
+            :returns: named_arg
+            :rtype: {0}
+            """
+            return named_arg
+        '''.format(container_type))
+        with self.assertNoMessages():
+            self.checker.visit_functiondef(node)
+
     def test_ignores_optional_specifier_numpy(self):
         node = astroid.extract_node('''
         def do_something(param, param2='all'):