added support for nested classes; this is basically a newer version o…

pdoc/__init__.py

@@ -712,7 +712,15 @@ def is_from_this_module(obj):
             if _is_function(obj):
                 self.doc[name] = Function(name, self, obj)
             elif inspect.isclass(obj):
-                self.doc[name] = Class(name, self, obj)
+                cl = Class(name, self, obj)
+                self.doc[name] = cl
+                # Also add all nested classes of the class just found to the
+                # module context, otherwise some classes will be recognized
+                # as "External" even though they were correctly recognized
+                # as "Class" during an earlier scanning process
+                # (=> Module.find_ident()).
+                for ncl in cl._nested_classes():
+                    self.doc[ncl.name] = ncl
             elif name in var_docstrings:
                 self.doc[name] = Variable(name, self, var_docstrings[name], obj=obj)
 
@@ -945,7 +953,7 @@ def variables(self, sort=True) -> List['Variable']:
 
     def classes(self, sort=True) -> List['Class']:
         """
-        Returns all documented module-level classes in the module,
+        Returns all documented classes in the module,
         optionally sorted alphabetically, as a list of `pdoc.Class`.
         """
         return self._filter_doc_objs(Class, sort)
@@ -1005,9 +1013,10 @@ class Class(Doc):
     """
     Representation of a class' documentation.
     """
-    __slots__ = ('doc', '_super_members')
+    __slots__ = ('doc', 'cls', '_super_members')
 
-    def __init__(self, name: str, module: Module, obj, *, docstring: str = None):
+    def __init__(self, name: str, module: Module, obj, *, docstring: str = None,
+                 cls: 'Class' = None):
         assert inspect.isclass(obj)
 
         if docstring is None:
@@ -1018,7 +1027,13 @@ def __init__(self, name: str, module: Module, obj, *, docstring: str = None):
 
         super().__init__(name, module, obj, docstring=docstring)
 
-        self.doc: Dict[str, Union[Function, Variable]] = {}
+        self.cls = cls
+        """
+        The `pdoc.Class` object if this class is defined in a class. If not,
+        this is None.
+        """
+
+        self.doc: Dict[str, Union[Function, Variable, Class]] = {}
         """A mapping from identifier name to a `pdoc.Doc` objects."""
 
         # Annotations for filtering.
@@ -1063,6 +1078,13 @@ def definition_order_index(
             if _is_function(obj):
                 self.doc[name] = Function(
                     name, self.module, obj, cls=self)
+            elif inspect.isclass(obj):
+                self.doc[name] = Class(
+                    self.name + "." + name,
+                    self.module,
+                    obj,
+                    cls=self
+                )
             else:
                 self.doc[name] = Variable(
                     name, self.module,
@@ -1158,6 +1180,14 @@ def _filter_doc_objs(self, type: Type[T], include_inherited=True,
                   if (include_inherited or not obj.inherits) and filter_func(obj)]
         return sorted(result) if sort else result
 
+    def classes(self, include_inherited=False, sort=False):
+        """Returns the classes nested in this class."""
+        return self._filter_doc_objs(
+            Class,
+            include_inherited=include_inherited,
+            sort=sort
+        )
+
     def class_variables(self, include_inherited=True, sort=True) -> List['Variable']:
         """
         Returns an optionally-sorted list of `pdoc.Variable` objects that
@@ -1195,6 +1225,19 @@ def functions(self, include_inherited=True, sort=True) -> List['Function']:
             Function, include_inherited, lambda dobj: not dobj.is_method,
             sort)
 
+    def _nested_classes(self, include_inherited=True, sort=True) -> List['Class']:
+        """
+        Returns an optionally-sorted list of `pdoc.Class` objects that
+        represent this class' nested classes.
+        """
+        stack = self.classes(sort)[::-1]
+        results = []
+        while stack:
+            c = stack.pop()
+            results.append(c)
+            stack.extend(c.classes(sort=sort)[::-1])
+        return results
+
     def inherited_members(self) -> List[Tuple['Class', List[Doc]]]:
         """
         Returns all inherited members as a list of tuples
@@ -1204,7 +1247,7 @@ def inherited_members(self) -> List[Tuple['Class', List[Doc]]]:
         return sorted(((cast(Class, k), sorted(g))
                        for k, g in groupby((i.inherits
                                             for i in self.doc.values() if i.inherits),
-                                           key=lambda i: i.cls)),                   # type: ignore
+                                           key=lambda i: i.cls)),
                       key=lambda x, _mro_index=self.mro().index: _mro_index(x[0]))  # type: ignore
 
     def _fill_inheritance(self):

pdoc/test/__init__.py

@@ -3,6 +3,7 @@
 """
 import doctest
 import enum
+import importlib
 import inspect
 import os
 import shutil
@@ -721,7 +722,7 @@ def test__all__(self):
             mod = pdoc.Module(module)
             with self.assertWarns(UserWarning):  # Only B is used but __pdoc__ contains others
                 pdoc.link_inheritance()
-            self.assertEqual(list(mod.doc.keys()), ['B'])
+            self.assertEqual(list(mod.doc.keys()), ['B', 'B.C'])
 
     def test_find_ident(self):
         mod = pdoc.Module(EXAMPLE_MODULE)
@@ -1026,6 +1027,57 @@ class G(F[int]):
         self.assertEqual(pdoc.Class('F', mod, F).docstring, """baz\n\nbar""")
         self.assertEqual(pdoc.Class('G', mod, G).docstring, """foo\n\nbar""")
 
+    def test_nested_classes(self):
+        m_name = 'M'
+        m_spec = importlib.util.spec_from_loader(m_name, loader=None)
+        m_module = importlib.util.module_from_spec(m_spec)
+        code = '''
+class A:
+    """Class A documentation"""
+    x: str = ''
+    class B:
+        """ Class A.B documentation"""
+        class C:
+            """ Class A.B.C documentation"""
+            pass
+
+class D(A):
+    pass
+
+class E(A.B.C):
+    pass
+'''
+        exec(code, m_module.__dict__)
+
+        A = m_module.A
+        B = A.B
+        C = B.C
+        D = m_module.D
+        E = m_module.E
+
+        sys.modules[m_name] = m_module
+
+        try:
+            mod = pdoc.Module('M', context=pdoc.Context())
+            self.assertEqual([c.qualname for c in mod.classes()], ['A', 'A.B', 'A.B.C', 'D', 'E'])
+            self.assertEqual([c.qualname for c in pdoc.Class('A', mod, A).classes()], ['A.B'])
+            self.assertEqual([c.qualname for c in pdoc.Class('B', mod, B).classes()], ['A.B.C'])
+            self.assertEqual([c.qualname for c in pdoc.Class('C', mod, C).classes()], [])
+
+            self.assertEqual(pdoc.Class('A', mod, A).docstring, "Class A documentation")
+            self.assertEqual(pdoc.Class('B', mod, B).docstring, "Class A.B documentation")
+            self.assertEqual(pdoc.Class('C', mod, C).docstring, "Class A.B.C documentation")
+
+            # D inherits doc from A
+            self.assertEqual([c.qualname for c in pdoc.Class('D', mod, D).mro()], ['A'])
+            self.assertEqual(pdoc.Class('D', mod, D).docstring, "Class A documentation")
+
+            # E inherits doc from A.B.C
+            self.assertEqual([c.qualname for c in pdoc.Class('E', mod, E).mro()], ['A.B.C'])
+            self.assertEqual(pdoc.Class('E', mod, E).docstring, "Class A.B.C documentation")
+        finally:
+            del sys.modules[m_name]
+
     @ignore_warnings
     def test_Class_params(self):
         class C: