From 1d54f5c1edc1fab6cf2391a5c22fb5a8116ed638 Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Wed, 7 Jan 2026 15:13:55 -0800
Subject: [PATCH 1/7] Make _apply_generic return a type instead of a dict

---
 typemap/type_eval/_apply_generic.py | 26 ++++++++++++++++++++++----
 typemap/type_eval/_eval_typing.py   | 22 +++-------------------
 2 files changed, 25 insertions(+), 23 deletions(-)

diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index 4fd60fb..86443c4 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -159,12 +159,26 @@ def make_func(
     return new_func
 
 
-def apply(cls: type[Any]) -> dict[str, Any]:
+def apply(
+    cls: type[Any], ctx: _eval_typing.EvalContext
+) -> type[_eval_typing._EvalProxy]:
     mro_boxed = compute_mro(cls)
 
     annos: dict[str, Any] = {}
     dct: dict[str, Any] = {}
 
+    # We create it early so we can add it to seen, to handle recursion
+    ctx.seen[cls] = ret = type(
+        cls.__name__,
+        (_eval_typing._EvalProxy,),
+        {
+            "__module__": cls.__module__,
+            "__name__": cls.__name__,
+            "__origin__": cls,
+        },
+    )
+
+    # Run through the mro
     for boxed in reversed(mro_boxed):
         if af := getattr(boxed.cls, "__annotate__", None):
             # Class has annotations, let's resolve generic arguments
@@ -235,11 +249,15 @@ def apply(cls: type[Any]) -> dict[str, Any]:
                     dct[name] = stuff
 
     for k, v in annos.items():
-        annos[k] = _eval_typing.eval_typing(v)
+        annos[k] = _eval_typing._eval_types(v, ctx=ctx)
 
     for k, v in dct.items():
-        dct[k] = _eval_typing.eval_typing(v)
+        dct[k] = _eval_typing._eval_types(v, ctx=ctx)
 
     dct["__annotations__"] = annos
     dct["__generalized_mro__"] = mro_boxed
-    return dct
+
+    for k, v in dct.items():
+        setattr(ret, k, v)
+
+    return ret
diff --git a/typemap/type_eval/_eval_typing.py b/typemap/type_eval/_eval_typing.py
index 7862d24..fa980e6 100644
--- a/typemap/type_eval/_eval_typing.py
+++ b/typemap/type_eval/_eval_typing.py
@@ -256,29 +256,13 @@ def _eval_func(
 @_eval_types_impl.register
 def _eval_type_type(obj: type, ctx: EvalContext):
     if isinstance(obj, type) and issubclass(obj, typing.Generic):
-        ret = type(
-            obj.__name__,
-            (_EvalProxy,),
-            {
-                "__module__": obj.__module__,
-                "__name__": obj.__name__,
-                "__origin__": obj,
-            },
-        )
-
-        # Need to add it to `seen` to handle recursion
-        ctx.seen[obj] = ret
         try:
-            ns = _apply_generic.apply(obj)
+            return _apply_generic.apply(obj, ctx)
         except Exception:
-            ctx.seen.pop(obj)
+            # XXX: should apply handle this?
+            ctx.seen.pop(obj, None)
             raise
 
-        for k, v in ns.items():
-            setattr(ret, k, v)
-
-        return ret
-
     return obj
 
 

From 2750daab2065cd42613fed6f02fd1d250658c43a Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Wed, 7 Jan 2026 16:04:37 -0800
Subject: [PATCH 2/7] Do a better job substituting into types

---
 tests/test_type_dir.py               | 21 +++++++++++++++++++++
 typemap/type_eval/_apply_generic.py  | 25 ++++++++++++++++++-------
 typemap/type_eval/_eval_operators.py |  5 +----
 typemap/type_eval/_eval_typing.py    | 14 ++++++++++----
 typemap/type_eval/_typing_inspect.py |  4 ++++
 5 files changed, 54 insertions(+), 15 deletions(-)

diff --git a/tests/test_type_dir.py b/tests/test_type_dir.py
index e10179f..7924b4c 100644
--- a/tests/test_type_dir.py
+++ b/tests/test_type_dir.py
@@ -286,6 +286,27 @@ def test_type_dir_7():
     assert d is int
 
 
+class Simple[T]:
+    simple: T
+
+
+class Funny[T](Simple[list[T]]):
+    pass
+
+
+class Funny2(Funny[int]):
+    pass
+
+
+def test_type_dir_8():
+    d = eval_typing(Funny2)
+
+    assert format_helper.format_class(d) == textwrap.dedent("""\
+        class Funny2:
+            simple: list[int]
+    """)
+
+
 def _get_member(members, name):
     return next(
         iter(m for m in members.__args__ if m.__args__[0].__args__[0] == name)
diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index 86443c4..99490b0 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -4,7 +4,11 @@
 import types
 import typing
 
+from typing import _GenericAlias as typing_GenericAlias  # type: ignore [attr-defined]  # noqa: PLC2701
+
+
 from . import _eval_typing
+from . import _typing_inspect
 
 if typing.TYPE_CHECKING:
     from typing import Any
@@ -44,8 +48,17 @@ def dump(self, *, _level: int = 0):
             b.dump(_level=_level + 1)
 
 
+def substitute(ty, args):
+    if ty in args:
+        return args[ty]
+    elif isinstance(ty, (typing_GenericAlias, types.GenericAlias)):
+        return ty.__origin__[*[substitute(t, args) for t in ty.__args__]]
+    else:
+        return ty
+
+
 def box(cls: type[Any]) -> Boxed:
-    def _box(cls: type[Any], args: dict[str, Any]) -> Boxed:
+    def _box(cls: type[Any], args: dict[Any, Any]) -> Boxed:
         boxed_bases: list[Boxed] = []
 
         orig_bases = cls.__dict__.get("__orig_bases__")
@@ -60,14 +73,12 @@ def _box(cls: type[Any], args: dict[str, Any]) -> Boxed:
 
                 if issubclass(base, typing.Generic):
                     if base_params := getattr(base, "__parameters__", None):
+                        # obase should be _GenericAlias...
                         boxed_args = {}
                         for param, arg in zip(
                             base_params, obase.__args__, strict=True
                         ):
-                            if arg in args:
-                                boxed_args[param] = args[arg]
-                            else:
-                                boxed_args[param] = arg
+                            boxed_args[param] = substitute(arg, args)
                     else:
                         boxed_args = {}
 
@@ -85,7 +96,7 @@ def _box(cls: type[Any], args: dict[str, Any]) -> Boxed:
         cls = cls.__origin__
     else:
         if params := getattr(cls, "__parameters__", None):
-            args = {p: p for p in params}
+            args = {p: _typing_inspect.param_default(p) for p in params}
         else:
             args = {}
 
@@ -120,7 +131,7 @@ def merge_boxed_mro(seqs: list[list[Boxed]]) -> list[Boxed]:
 
 def _compute_mro(C: Boxed) -> list[Boxed]:
     return merge_boxed_mro(
-        [[C]] + list(map(_compute_mro, C.bases)) + [list(C.bases)]
+        [[C]] + [_compute_mro(b) for b in C.bases] + [list(C.bases)]
     )
 
 
diff --git a/typemap/type_eval/_eval_operators.py b/typemap/type_eval/_eval_operators.py
index 23c29e6..f77b86f 100644
--- a/typemap/type_eval/_eval_operators.py
+++ b/typemap/type_eval/_eval_operators.py
@@ -423,10 +423,7 @@ def _get_defaults(base_head):
         return (typing.Any, SpecialFormEllipsis)
 
     if params := _get_params(base_head):
-        return tuple(
-            typing.Any if t.__default__ == typing.NoDefault else t.__default__
-            for t in params
-        )
+        return tuple(_typing_inspect.param_default(p) for p in params)
 
     return (typing.Any,) * arity
 
diff --git a/typemap/type_eval/_eval_typing.py b/typemap/type_eval/_eval_typing.py
index fa980e6..bab4cce 100644
--- a/typemap/type_eval/_eval_typing.py
+++ b/typemap/type_eval/_eval_typing.py
@@ -9,7 +9,7 @@
 import types
 import typing
 
-from typing import _GenericAlias  # type: ignore [attr-defined]  # noqa: PLC2701
+from typing import _GenericAlias as typing_GenericAlias  # type: ignore [attr-defined]  # noqa: PLC2701
 
 
 if typing.TYPE_CHECKING:
@@ -282,7 +282,12 @@ def _eval_type_alias(obj: typing.TypeAliasType, ctx: EvalContext):
 
 
 @_eval_types_impl.register
-def _eval_types_generic(obj: types.GenericAlias, ctx: EvalContext):
+def _eval_applied_type_alias(obj: types.GenericAlias, ctx: EvalContext):
+    """Eval a types.GenericAlias -- typically an applied type alias
+
+    This is typically an application of a type alias... except it can
+    also be an application of a built-in type (like list, tuple, dict)
+    """
     new_args = tuple(_eval_types(arg, ctx) for arg in obj.__args__)
 
     new_obj = obj.__origin__[new_args]  # type: ignore[index]
@@ -315,9 +320,10 @@ def _eval_types_generic(obj: types.GenericAlias, ctx: EvalContext):
 
 
 @_eval_types_impl.register
-def _eval_typing_generic(obj: _GenericAlias, ctx: EvalContext):
+def _eval_applied_class(obj: typing_GenericAlias, ctx: EvalContext):
+    """Eval a typing._GenericAlias -- an applied user-defined class"""
     # generic *classes* are typing._GenericAlias while generic type
-    # aliases are # types.GenericAlias? Why in the world.
+    # aliases are types.GenericAlias? Why in the world.
     if func := _eval_funcs.get(obj.__origin__):
         new_args = tuple(_eval_types(arg, ctx) for arg in obj.__args__)
         ret = func(*new_args, ctx=ctx)
diff --git a/typemap/type_eval/_typing_inspect.py b/typemap/type_eval/_typing_inspect.py
index ed3b82e..f6195ae 100644
--- a/typemap/type_eval/_typing_inspect.py
+++ b/typemap/type_eval/_typing_inspect.py
@@ -149,6 +149,10 @@ def is_eval_proxy(t: Any) -> TypeGuard[type[_eval_typing._EvalProxy]]:
     return isinstance(t, type) and issubclass(t, _eval_typing._EvalProxy)
 
 
+def param_default(p) -> Any:
+    return Any if p.__default__ == typing.NoDefault else p.__default__
+
+
 __all__ = (
     "is_annotated",
     "is_forward_ref",

From 4f2b90dc0a4de9224158f1500a1451d35a0bbd2a Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Wed, 7 Jan 2026 16:30:23 -0800
Subject: [PATCH 3/7] Tweak mro computation

---
 typemap/type_eval/_apply_generic.py | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index 99490b0..2dc4f82 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -21,6 +21,7 @@ class Boxed:
     args: dict[Any, Any]
 
     str_args: dict[str, Any] = dataclasses.field(init=False)
+    mro: list[Boxed] = dataclasses.field(init=False)
 
     def __post_init__(self):
         object.__setattr__(
@@ -28,6 +29,11 @@ def __post_init__(self):
             "str_args",
             {str(k): v for k, v in self.args.items()},
         )
+        object.__setattr__(
+            self,
+            "mro",
+            _compute_mro(self),
+        )
 
     def __repr__(self):
         return f"Boxed<{self.cls} {self.args}>"
@@ -90,6 +96,8 @@ def _box(cls: type[Any], args: dict[Any, Any]) -> Boxed:
 
     if isinstance(cls, (typing._GenericAlias, types.GenericAlias)):  # type: ignore[attr-defined]
         # XXX this feels out of place, `box()` needs to only accept types.
+        # this never gets activated now, but I want to basically
+        # support this later -sully
         args = dict(
             zip(cls.__origin__.__parameters__, cls.__args__, strict=True)
         )
@@ -103,10 +111,10 @@ def _box(cls: type[Any], args: dict[Any, Any]) -> Boxed:
     return _box(cls, args)
 
 
-def merge_boxed_mro(seqs: list[list[Boxed]]) -> list[Boxed]:
-    res: list[Boxed] = []
+def merge_boxed_mro[T](seqs: list[list[T]]) -> list[T]:
+    res: list[T] = []
     i = 0
-    cand: Boxed | None = None
+    cand: T | None = None
     while 1:
         nonemptyseqs = [seq for seq in seqs if seq]
         if not nonemptyseqs:
@@ -130,13 +138,7 @@ def merge_boxed_mro(seqs: list[list[Boxed]]) -> list[Boxed]:
 
 
 def _compute_mro(C: Boxed) -> list[Boxed]:
-    return merge_boxed_mro(
-        [[C]] + [_compute_mro(b) for b in C.bases] + [list(C.bases)]
-    )
-
-
-def compute_mro(C: type[Any]) -> list[Boxed]:
-    return _compute_mro(box(C))
+    return merge_boxed_mro([[C]] + [b.mro for b in C.bases] + [list(C.bases)])
 
 
 def make_func(
@@ -173,7 +175,8 @@ def make_func(
 def apply(
     cls: type[Any], ctx: _eval_typing.EvalContext
 ) -> type[_eval_typing._EvalProxy]:
-    mro_boxed = compute_mro(cls)
+    cls_boxed = box(cls)
+    mro_boxed = cls_boxed.mro
 
     annos: dict[str, Any] = {}
     dct: dict[str, Any] = {}
@@ -189,6 +192,9 @@ def apply(
         },
     )
 
+    # TODO: I think we want to create the whole mro chain...
+    # before we evaluate the contents?
+
     # Run through the mro
     for boxed in reversed(mro_boxed):
         if af := getattr(boxed.cls, "__annotate__", None):

From 7b7de3a61bcc6f0af9a74b9e966f9a5deed213a1 Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Wed, 7 Jan 2026 16:34:36 -0800
Subject: [PATCH 4/7] Refactor apply some - factor out some code

---
 typemap/type_eval/_apply_generic.py | 145 +++++++++++++++-------------
 1 file changed, 78 insertions(+), 67 deletions(-)

diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index 2dc4f82..dd3741f 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -172,6 +172,81 @@ def make_func(
     return new_func
 
 
+def _get_local_defns(boxed: Boxed) -> tuple[dict[str, Any], dict[str, Any]]:
+    annos: dict[str, Any] = {}
+    dct: dict[str, Any] = {}
+
+    if af := getattr(boxed.cls, "__annotate__", None):
+        # Class has annotations, let's resolve generic arguments
+
+        args = tuple(
+            types.CellType(
+                boxed.cls.__dict__
+                if name == "__classdict__"
+                else boxed.str_args[name]
+            )
+            for name in af.__code__.co_freevars
+        )
+
+        ff = types.FunctionType(
+            af.__code__, af.__globals__, af.__name__, None, args
+        )
+        rr = ff(annotationlib.Format.VALUE)
+
+        if rr:
+            for k, v in rr.items():
+                if isinstance(v, str):
+                    # Handle cases where annotation is explicitly a string,
+                    # e.g.:
+                    #
+                    #   class Foo[X]:
+                    #       x: "Foo[X | None]"
+
+                    annos[k] = eval(v, af.__globals__, boxed.str_args)
+                else:
+                    annos[k] = v
+    elif af := getattr(boxed.cls, "__annotations__", None):
+        annos.update(af)
+
+    for name, orig in boxed.cls.__dict__.items():
+        if name in typing.EXCLUDED_ATTRIBUTES:  # type: ignore[attr-defined]
+            continue
+
+        stuff = inspect.unwrap(orig)
+
+        if isinstance(stuff, types.FunctionType):
+            if af := getattr(stuff, "__annotate__", None):
+                params = dict(
+                    zip(
+                        map(str, stuff.__type_params__),
+                        stuff.__type_params__,
+                        strict=True,
+                    )
+                )
+
+                args = tuple(
+                    types.CellType(
+                        boxed.cls.__dict__
+                        if name == "__classdict__"
+                        else params[name]
+                        if name in params
+                        else boxed.str_args[name]
+                    )
+                    for name in af.__code__.co_freevars
+                )
+
+                ff = types.FunctionType(
+                    af.__code__, af.__globals__, af.__name__, None, args
+                )
+                rr = ff(annotationlib.Format.VALUE)
+
+                dct[name] = make_func(orig, rr)
+            elif af := getattr(stuff, "__annotations__", None):
+                dct[name] = stuff
+
+    return annos, dct
+
+
 def apply(
     cls: type[Any], ctx: _eval_typing.EvalContext
 ) -> type[_eval_typing._EvalProxy]:
@@ -197,73 +272,9 @@ def apply(
 
     # Run through the mro
     for boxed in reversed(mro_boxed):
-        if af := getattr(boxed.cls, "__annotate__", None):
-            # Class has annotations, let's resolve generic arguments
-
-            args = tuple(
-                types.CellType(
-                    boxed.cls.__dict__
-                    if name == "__classdict__"
-                    else boxed.str_args[name]
-                )
-                for name in af.__code__.co_freevars
-            )
-
-            ff = types.FunctionType(
-                af.__code__, af.__globals__, af.__name__, None, args
-            )
-            rr = ff(annotationlib.Format.VALUE)
-
-            if rr:
-                for k, v in rr.items():
-                    if isinstance(v, str):
-                        # Handle cases where annotation is explicitly a string,
-                        # e.g.:
-                        #
-                        #   class Foo[X]:
-                        #       x: "Foo[X | None]"
-
-                        annos[k] = eval(v, af.__globals__, boxed.str_args)
-                    else:
-                        annos[k] = v
-        elif af := getattr(boxed.cls, "__annotations__", None):
-            annos.update(af)
-
-        for name, orig in boxed.cls.__dict__.items():
-            if name in typing.EXCLUDED_ATTRIBUTES:  # type: ignore[attr-defined]
-                continue
-
-            stuff = inspect.unwrap(orig)
-
-            if isinstance(stuff, types.FunctionType):
-                if af := getattr(stuff, "__annotate__", None):
-                    params = dict(
-                        zip(
-                            map(str, stuff.__type_params__),
-                            stuff.__type_params__,
-                            strict=True,
-                        )
-                    )
-
-                    args = tuple(
-                        types.CellType(
-                            boxed.cls.__dict__
-                            if name == "__classdict__"
-                            else params[name]
-                            if name in params
-                            else boxed.str_args[name]
-                        )
-                        for name in af.__code__.co_freevars
-                    )
-
-                    ff = types.FunctionType(
-                        af.__code__, af.__globals__, af.__name__, None, args
-                    )
-                    rr = ff(annotationlib.Format.VALUE)
-
-                    dct[name] = make_func(orig, rr)
-                elif af := getattr(stuff, "__annotations__", None):
-                    dct[name] = stuff
+        lannos, ldct = _get_local_defns(boxed)
+        annos.update(lannos)
+        dct.update(ldct)
 
     for k, v in annos.items():
         annos[k] = _eval_typing._eval_types(v, ctx=ctx)

From 042a20db5463bc25e5d1b494627e54aca890ea07 Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Wed, 7 Jan 2026 17:03:36 -0800
Subject: [PATCH 5/7] Heavily refactor apply to create classes for the whole
 mro

---
 typemap/type_eval/_apply_generic.py  | 79 ++++++++++++++++++----------
 typemap/type_eval/_eval_operators.py |  6 +--
 2 files changed, 55 insertions(+), 30 deletions(-)

diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index dd3741f..9847f29 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -35,6 +35,12 @@ def __post_init__(self):
             _compute_mro(self),
         )
 
+    def alias_type(self):
+        if self.args:
+            return self.cls[*self.args.values()]
+        else:
+            return self.cls
+
     def __repr__(self):
         return f"Boxed<{self.cls} {self.args}>"
 
@@ -253,39 +259,58 @@ def apply(
     cls_boxed = box(cls)
     mro_boxed = cls_boxed.mro
 
-    annos: dict[str, Any] = {}
-    dct: dict[str, Any] = {}
-
-    # We create it early so we can add it to seen, to handle recursion
-    ctx.seen[cls] = ret = type(
-        cls.__name__,
-        (_eval_typing._EvalProxy,),
-        {
-            "__module__": cls.__module__,
-            "__name__": cls.__name__,
-            "__origin__": cls,
-        },
-    )
-
     # TODO: I think we want to create the whole mro chain...
     # before we evaluate the contents?
 
-    # Run through the mro
+    # FIXME: right now we flatten out all the attributes... but should we??
+
+    new = {}
+
+    # Run through the mro and populate everything
     for boxed in reversed(mro_boxed):
-        lannos, ldct = _get_local_defns(boxed)
-        annos.update(lannos)
-        dct.update(ldct)
+        # We create it early so we can add it to seen, to handle recursion
+        # XXX: currently we are doing this even for types with no generics...
+        # that simplifies the flow... - probably keep it this way until
+        # we stop flattening attributes into every class
+        name = boxed.cls.__name__
+        cboxed: Any
+        cboxed = type(
+            boxed.cls.__name__,
+            (_eval_typing._EvalProxy,),
+            {
+                "__module__": boxed.cls.__module__,
+                "__name__": name,
+                "__origin__": boxed.cls,
+                "__local_args__": tuple(boxed.args.values()),
+            },
+        )
+        ctx.seen[boxed.alias_type()] = new[boxed] = cboxed
+
+        annos: dict[str, Any] = {}
+        dct: dict[str, Any] = {}
+
+        cboxed.__local_annotations__, cboxed.__local_defns__ = _get_local_defns(
+            boxed
+        )
+        for base in reversed(boxed.mro):
+            cbase = new[base]
+            annos.update(cbase.__local_annotations__)
+            dct.update(cbase.__local_defns__)  # uh.
 
-    for k, v in annos.items():
-        annos[k] = _eval_typing._eval_types(v, ctx=ctx)
+        cboxed.__defn_names__ = set(dct)
+        cboxed.__annotations__ = annos
+        cboxed.__generalized_mro__ = [new[b] for b in boxed.mro]
 
-    for k, v in dct.items():
-        dct[k] = _eval_typing._eval_types(v, ctx=ctx)
+        for k, v in dct.items():
+            setattr(cboxed, k, v)
 
-    dct["__annotations__"] = annos
-    dct["__generalized_mro__"] = mro_boxed
+    # Run through the mro again and evaluate everything
+    for cboxed in new.values():
+        for k, v in cboxed.__annotations__.items():
+            cboxed.__annotations__[k] = _eval_typing._eval_types(v, ctx=ctx)
 
-    for k, v in dct.items():
-        setattr(ret, k, v)
+        for k in cboxed.__defn_names__:
+            v = cboxed.__dict__[k]
+            setattr(cboxed, k, _eval_typing._eval_types(v, ctx=ctx))
 
-    return ret
+    return new[cls_boxed]
diff --git a/typemap/type_eval/_eval_operators.py b/typemap/type_eval/_eval_operators.py
index f77b86f..bedb41d 100644
--- a/typemap/type_eval/_eval_operators.py
+++ b/typemap/type_eval/_eval_operators.py
@@ -302,9 +302,9 @@ def _get_raw_args(tp, base_head, ctx) -> typing.Any:
 
     # Scan the fully-annotated MRO to find the base
     elif gen_mro := getattr(evaled, "__generalized_mro__", None):
-        for box in gen_mro:
-            if box.cls is base_head:
-                return tuple(box.args.values())
+        for anc in gen_mro:
+            if _typing_inspect.get_head(anc) is base_head:
+                return anc.__local_args__
         return None
 
     else:

From e5c544abf01644d0ec726bad3592603c3bf7f21f Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Thu, 8 Jan 2026 12:07:48 -0800
Subject: [PATCH 6/7] Include args in apply type names

---
 typemap/type_eval/_apply_generic.py | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index 9847f29..ec790c2 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -253,6 +253,16 @@ def _get_local_defns(boxed: Boxed) -> tuple[dict[str, Any], dict[str, Any]]:
     return annos, dct
 
 
+def _type_repr(t: Any) -> str:
+    if isinstance(t, type):
+        if t.__module__ == "builtins":
+            return t.__qualname__
+        else:
+            return f"{t.__module__}.{t.__qualname__}"
+    else:
+        return repr(t)
+
+
 def apply(
     cls: type[Any], ctx: _eval_typing.EvalContext
 ) -> type[_eval_typing._EvalProxy]:
@@ -274,14 +284,18 @@ def apply(
         # we stop flattening attributes into every class
         name = boxed.cls.__name__
         cboxed: Any
+
+        args = tuple(boxed.args.values())
+        args_str = ", ".join(_type_repr(a) for a in args)
+        fullname = f"{name}[{args_str}]" if args_str else name
         cboxed = type(
-            boxed.cls.__name__,
+            fullname,
             (_eval_typing._EvalProxy,),
             {
                 "__module__": boxed.cls.__module__,
-                "__name__": name,
+                "__name__": fullname,
                 "__origin__": boxed.cls,
-                "__local_args__": tuple(boxed.args.values()),
+                "__local_args__": args,
             },
         )
         ctx.seen[boxed.alias_type()] = new[boxed] = cboxed

From 0b20860afc7159ff89dd1a8c98c1c97f912a34c2 Mon Sep 17 00:00:00 2001
From: "Michael J. Sullivan" <sully@msully.net>
Date: Thu, 8 Jan 2026 12:08:26 -0800
Subject: [PATCH 7/7] Properly populate the origin type for members

---
 tests/test_type_dir.py               | 20 +++-----------------
 typemap/type_eval/_apply_generic.py  |  6 ++++++
 typemap/type_eval/_eval_operators.py | 11 ++++++++---
 3 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/tests/test_type_dir.py b/tests/test_type_dir.py
index 7924b4c..30c345d 100644
--- a/tests/test_type_dir.py
+++ b/tests/test_type_dir.py
@@ -2,7 +2,6 @@
 import typing
 from typing import Literal, Never, TypeVar, Union
 
-import pytest
 
 from typemap.type_eval import eval_typing
 from typemap.typing import (
@@ -313,9 +312,6 @@ def _get_member(members, name):
     )
 
 
-@pytest.mark.xfail(
-    reason="Members does not actually report the correct origin class!"
-)
 def test_type_members_attr_():
     d = eval_typing(Members[Final])
     member = _get_member(d, "ordinary")
@@ -328,7 +324,7 @@ def test_type_members_func_1a():
     d = eval_typing(Members[Final])
     member = _get_member(d, "foo")
     assert typing.get_origin(member) is Member
-    name, typ, quals, _origin = typing.get_args(member)
+    name, typ, quals, origin = typing.get_args(member)
     assert name == typing.Literal["foo"]
     assert quals == typing.Literal["ClassVar"]
 
@@ -336,23 +332,13 @@ def test_type_members_func_1a():
         str(typ)
         == "\
 typing.Callable[[\
-typemap.typing.Param[typing.Literal['self'], tests.test_type_dir.Final, typing.Never], \
+typemap.typing.Param[typing.Literal['self'], tests.test_type_dir.Base[int], typing.Never], \
 typemap.typing.Param[typing.Literal['a'], int | None, typing.Never], \
 typemap.typing.Param[typing.Literal['b'], int, typing.Literal['keyword', \
 'default']]], \
 dict[str, int]]"
     )
 
-
-@pytest.mark.xfail(
-    reason="Members does not actually report the correct origin class!"
-)
-def test_type_members_func_1b():
-    # This should be merged up with 1a once it is fixed
-    d = eval_typing(Members[Final])
-    member = _get_member(d, "foo")
-    assert typing.get_origin(member) is Member
-    _, _, _, origin = typing.get_args(member)
     assert origin.__name__ == "Base[int]"
 
 
@@ -367,7 +353,7 @@ def test_type_members_func_2():
     assert (
         str(typ)
         == "\
-classmethod[tests.test_type_dir.Final, tuple[typemap.typing.Param[typing.Literal['a'], int | None, typing.Never], typemap.typing.Param[typing.Literal['b'], ~K, typing.Never]], dict[str, int]]"
+classmethod[tests.test_type_dir.Base[int], tuple[typemap.typing.Param[typing.Literal['a'], int | None, typing.Never], typemap.typing.Param[typing.Literal['b'], ~K, typing.Never]], dict[str, int]]"
     )
 
 
diff --git a/typemap/type_eval/_apply_generic.py b/typemap/type_eval/_apply_generic.py
index ec790c2..fa13d26 100644
--- a/typemap/type_eval/_apply_generic.py
+++ b/typemap/type_eval/_apply_generic.py
@@ -273,6 +273,8 @@ def apply(
     # before we evaluate the contents?
 
     # FIXME: right now we flatten out all the attributes... but should we??
+    # XXX: Yeah, a lot of work is put into copying everything into every
+    # class and it is not worth it, at all.
 
     new = {}
 
@@ -302,6 +304,7 @@ def apply(
 
         annos: dict[str, Any] = {}
         dct: dict[str, Any] = {}
+        sources: dict[str, Any] = {}
 
         cboxed.__local_annotations__, cboxed.__local_defns__ = _get_local_defns(
             boxed
@@ -310,9 +313,12 @@ def apply(
             cbase = new[base]
             annos.update(cbase.__local_annotations__)
             dct.update(cbase.__local_defns__)  # uh.
+            for k in [*cbase.__local_annotations__, *cbase.__local_defns__]:
+                sources[k] = cbase
 
         cboxed.__defn_names__ = set(dct)
         cboxed.__annotations__ = annos
+        cboxed.__defn_sources__ = sources
         cboxed.__generalized_mro__ = [new[b] for b in boxed.mro]
 
         for k, v in dct.items():
diff --git a/typemap/type_eval/_eval_operators.py b/typemap/type_eval/_eval_operators.py
index bedb41d..65ba807 100644
--- a/typemap/type_eval/_eval_operators.py
+++ b/typemap/type_eval/_eval_operators.py
@@ -54,6 +54,9 @@ def get_annotated_type_hints(cls, **kwargs):
     for acls in cls.__mro__:
         if not hasattr(acls, "__annotations__"):
             continue
+        # XXX: This is super janky; we should just use the real mro
+        # and not flatten things
+        sources = getattr(acls, "__defn_sources__", {})
         for k in acls.__annotations__:
             if k not in hints:
                 quals = set()
@@ -73,7 +76,7 @@ def get_annotated_type_hints(cls, **kwargs):
                     else:
                         break
 
-                hints[k] = ty, tuple(sorted(quals)), acls
+                hints[k] = ty, tuple(sorted(quals)), sources.get(k, acls)
 
         # Stop early if we are done.
         if len(hints) == len(ohints):
@@ -84,6 +87,7 @@ def get_annotated_type_hints(cls, **kwargs):
 def get_annotated_method_hints(tp):
     hints = {}
     for ptp in reversed(tp.mro()):
+        sources = getattr(ptp, "__defn_sources__", {})
         for name, attr in ptp.__dict__.items():
             if isinstance(
                 attr,
@@ -97,10 +101,11 @@ def get_annotated_method_hints(tp):
                 if attr is typing._no_init_or_replace_init:
                     continue
 
+                rtp = sources.get(name, ptp)
                 hints[name] = (
-                    _function_type(attr, receiver_type=ptp),
+                    _function_type(attr, receiver_type=rtp),
                     ("ClassVar",),
-                    ptp,
+                    rtp,
                 )
 
     return hints