cpython_12/tests/private/eval_tests.patch

diff --git a/Lib/test/test_annotationlib.py b/Lib/test/test_annotationlib.py
new file mode 100644
index 0000000..e6cd7b3
--- /dev/null
+++ b/Lib/test/test_annotationlib.py
@@ -0,0 +1,771 @@
+"""Tests for the annotations module."""
+
+import annotationlib
+import functools
+import pickle
+import unittest
+from typing import Unpack
+
+from test.test_inspect import inspect_stock_annotations
+from test.test_inspect import inspect_stringized_annotations
+from test.test_inspect import inspect_stringized_annotations_2
+from test.test_inspect import inspect_stringized_annotations_pep695
+
+
+def times_three(fn):
+    @functools.wraps(fn)
+    def wrapper(a, b):
+        return fn(a * 3, b * 3)
+
+    return wrapper
+
+
+class TestFormat(unittest.TestCase):
+    def test_enum(self):
+        self.assertEqual(annotationlib.Format.VALUE.value, 1)
+        self.assertEqual(annotationlib.Format.VALUE, 1)
+
+        self.assertEqual(annotationlib.Format.FORWARDREF.value, 2)
+        self.assertEqual(annotationlib.Format.FORWARDREF, 2)
+
+        self.assertEqual(annotationlib.Format.SOURCE.value, 3)
+        self.assertEqual(annotationlib.Format.SOURCE, 3)
+
+
+class TestForwardRefFormat(unittest.TestCase):
+    def test_closure(self):
+        def inner(arg: x):
+            pass
+
+        anno = annotationlib.get_annotations(
+            inner, format=annotationlib.Format.FORWARDREF
+        )
+        fwdref = anno["arg"]
+        self.assertIsInstance(fwdref, annotationlib.ForwardRef)
+        self.assertEqual(fwdref.__forward_arg__, "x")
+        with self.assertRaises(NameError):
+            fwdref.evaluate()
+
+        x = 1
+        self.assertEqual(fwdref.evaluate(), x)
+
+        anno = annotationlib.get_annotations(
+            inner, format=annotationlib.Format.FORWARDREF
+        )
+        self.assertEqual(anno["arg"], x)
+
+    def test_function(self):
+        def f(x: int, y: doesntexist):
+            pass
+
+        anno = annotationlib.get_annotations(f, format=annotationlib.Format.FORWARDREF)
+        self.assertIs(anno["x"], int)
+        fwdref = anno["y"]
+        self.assertIsInstance(fwdref, annotationlib.ForwardRef)
+        self.assertEqual(fwdref.__forward_arg__, "doesntexist")
+        with self.assertRaises(NameError):
+            fwdref.evaluate()
+        self.assertEqual(fwdref.evaluate(globals={"doesntexist": 1}), 1)
+
+
+class TestSourceFormat(unittest.TestCase):
+    def test_closure(self):
+        x = 0
+
+        def inner(arg: x):
+            pass
+
+        anno = annotationlib.get_annotations(inner, format=annotationlib.Format.SOURCE)
+        self.assertEqual(anno, {"arg": "x"})
+
+    def test_function(self):
+        def f(x: int, y: doesntexist):
+            pass
+
+        anno = annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+        self.assertEqual(anno, {"x": "int", "y": "doesntexist"})
+
+    def test_expressions(self):
+        def f(
+            add: a + b,
+            sub: a - b,
+            mul: a * b,
+            matmul: a @ b,
+            truediv: a / b,
+            mod: a % b,
+            lshift: a << b,
+            rshift: a >> b,
+            or_: a | b,
+            xor: a ^ b,
+            and_: a & b,
+            floordiv: a // b,
+            pow_: a**b,
+            lt: a < b,
+            le: a <= b,
+            eq: a == b,
+            ne: a != b,
+            gt: a > b,
+            ge: a >= b,
+            invert: ~a,
+            neg: -a,
+            pos: +a,
+            getitem: a[b],
+            getattr: a.b,
+            call: a(b, *c, d=e),  # **kwargs are not supported
+            *args: *a,
+        ):
+            pass
+
+        anno = annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+        self.assertEqual(
+            anno,
+            {
+                "add": "a + b",
+                "sub": "a - b",
+                "mul": "a * b",
+                "matmul": "a @ b",
+                "truediv": "a / b",
+                "mod": "a % b",
+                "lshift": "a << b",
+                "rshift": "a >> b",
+                "or_": "a | b",
+                "xor": "a ^ b",
+                "and_": "a & b",
+                "floordiv": "a // b",
+                "pow_": "a ** b",
+                "lt": "a < b",
+                "le": "a <= b",
+                "eq": "a == b",
+                "ne": "a != b",
+                "gt": "a > b",
+                "ge": "a >= b",
+                "invert": "~a",
+                "neg": "-a",
+                "pos": "+a",
+                "getitem": "a[b]",
+                "getattr": "a.b",
+                "call": "a(b, *c, d=e)",
+                "args": "*a",
+            },
+        )
+
+    def test_reverse_ops(self):
+        def f(
+            radd: 1 + a,
+            rsub: 1 - a,
+            rmul: 1 * a,
+            rmatmul: 1 @ a,
+            rtruediv: 1 / a,
+            rmod: 1 % a,
+            rlshift: 1 << a,
+            rrshift: 1 >> a,
+            ror: 1 | a,
+            rxor: 1 ^ a,
+            rand: 1 & a,
+            rfloordiv: 1 // a,
+            rpow: 1**a,
+        ):
+            pass
+
+        anno = annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+        self.assertEqual(
+            anno,
+            {
+                "radd": "1 + a",
+                "rsub": "1 - a",
+                "rmul": "1 * a",
+                "rmatmul": "1 @ a",
+                "rtruediv": "1 / a",
+                "rmod": "1 % a",
+                "rlshift": "1 << a",
+                "rrshift": "1 >> a",
+                "ror": "1 | a",
+                "rxor": "1 ^ a",
+                "rand": "1 & a",
+                "rfloordiv": "1 // a",
+                "rpow": "1 ** a",
+            },
+        )
+
+    def test_nested_expressions(self):
+        def f(
+            nested: list[Annotated[set[int], "set of ints", 4j]],
+            set: {a + b},  # single element because order is not guaranteed
+            dict: {a + b: c + d, "key": e + g},
+            list: [a, b, c],
+            tuple: (a, b, c),
+            slice: (a[b:c], a[b:c:d], a[:c], a[b:], a[:], a[::d], a[b::d]),
+            extended_slice: a[:, :, c:d],
+            unpack1: [*a],
+            unpack2: [*a, b, c],
+        ):
+            pass
+
+        anno = annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+        self.assertEqual(
+            anno,
+            {
+                "nested": "list[Annotated[set[int], 'set of ints', 4j]]",
+                "set": "{a + b}",
+                "dict": "{a + b: c + d, 'key': e + g}",
+                "list": "[a, b, c]",
+                "tuple": "(a, b, c)",
+                "slice": "(a[b:c], a[b:c:d], a[:c], a[b:], a[:], a[::d], a[b::d])",
+                "extended_slice": "a[:, :, c:d]",
+                "unpack1": "[*a]",
+                "unpack2": "[*a, b, c]",
+            },
+        )
+
+    def test_unsupported_operations(self):
+        format_msg = "Cannot stringify annotation containing string formatting"
+
+        def f(fstring: f"{a}"):
+            pass
+
+        with self.assertRaises(TypeError):
+            annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+
+        def f(fstring_format: f"{a:02d}"):
+            pass
+
+        with self.assertRaises(TypeError):
+            annotationlib.get_annotations(f, format=annotationlib.Format.SOURCE)
+
+
+class TestForwardRefClass(unittest.TestCase):
+    def test_special_attrs(self):
+        # Forward refs provide a different introspection API. __name__ and
+        # __qualname__ make little sense for forward refs as they can store
+        # complex typing expressions.
+        fr = annotationlib.ForwardRef("set[Any]")
+        self.assertFalse(hasattr(fr, "__name__"))
+        self.assertFalse(hasattr(fr, "__qualname__"))
+        self.assertEqual(fr.__module__, "annotationlib")
+        # Forward refs are currently unpicklable once they contain a code object.
+        fr.__forward_code__  # fill the cache
+        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+            with self.assertRaises(TypeError):
+                pickle.dumps(fr, proto)
+
+
+class TestGetAnnotations(unittest.TestCase):
+    def test_builtin_type(self):
+        self.assertEqual(annotationlib.get_annotations(int), {})
+        self.assertEqual(annotationlib.get_annotations(object), {})
+
+    def test_custom_metaclass(self):
+        class Meta(type):
+            pass
+
+        class C(metaclass=Meta):
+            x: int
+
+        self.assertEqual(annotationlib.get_annotations(C), {"x": int})
+
+    def test_missing_dunder_dict(self):
+        class NoDict(type):
+            @property
+            def __dict__(cls):
+                raise AttributeError
+
+            b: str
+
+        class C1(metaclass=NoDict):
+            a: int
+
+        self.assertEqual(annotationlib.get_annotations(C1), {"a": int})
+        self.assertEqual(
+            annotationlib.get_annotations(C1, format=annotationlib.Format.FORWARDREF),
+            {"a": int},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(C1, format=annotationlib.Format.SOURCE),
+            {"a": "int"},
+        )
+        self.assertEqual(annotationlib.get_annotations(NoDict), {"b": str})
+        self.assertEqual(
+            annotationlib.get_annotations(NoDict, format=annotationlib.Format.FORWARDREF),
+            {"b": str},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(NoDict, format=annotationlib.Format.SOURCE),
+            {"b": "str"},
+        )
+
+    def test_format(self):
+        def f1(a: int):
+            pass
+
+        def f2(a: undefined):
+            pass
+
+        self.assertEqual(
+            annotationlib.get_annotations(f1, format=annotationlib.Format.VALUE),
+            {"a": int},
+        )
+        self.assertEqual(annotationlib.get_annotations(f1, format=1), {"a": int})
+
+        fwd = annotationlib.ForwardRef("undefined")
+        self.assertEqual(
+            annotationlib.get_annotations(f2, format=annotationlib.Format.FORWARDREF),
+            {"a": fwd},
+        )
+        self.assertEqual(annotationlib.get_annotations(f2, format=2), {"a": fwd})
+
+        self.assertEqual(
+            annotationlib.get_annotations(f1, format=annotationlib.Format.SOURCE),
+            {"a": "int"},
+        )
+        self.assertEqual(annotationlib.get_annotations(f1, format=3), {"a": "int"})
+
+        with self.assertRaises(ValueError):
+            annotationlib.get_annotations(f1, format=0)
+
+        with self.assertRaises(ValueError):
+            annotationlib.get_annotations(f1, format=4)
+
+    def test_custom_object_with_annotations(self):
+        class C:
+            def __init__(self):
+                self.__annotations__ = {"x": int, "y": str}
+
+        self.assertEqual(annotationlib.get_annotations(C()), {"x": int, "y": str})
+
+    def test_custom_format_eval_str(self):
+        def foo():
+            pass
+
+        with self.assertRaises(ValueError):
+            annotationlib.get_annotations(
+                foo, format=annotationlib.Format.FORWARDREF, eval_str=True
+            )
+            annotationlib.get_annotations(
+                foo, format=annotationlib.Format.SOURCE, eval_str=True
+            )
+
+    def test_stock_annotations(self):
+        def foo(a: int, b: str):
+            pass
+
+        for format in (annotationlib.Format.VALUE, annotationlib.Format.FORWARDREF):
+            with self.subTest(format=format):
+                self.assertEqual(
+                    annotationlib.get_annotations(foo, format=format),
+                    {"a": int, "b": str},
+                )
+        self.assertEqual(
+            annotationlib.get_annotations(foo, format=annotationlib.Format.SOURCE),
+            {"a": "int", "b": "str"},
+        )
+
+        foo.__annotations__ = {"a": "foo", "b": "str"}
+        for format in annotationlib.Format:
+            with self.subTest(format=format):
+                self.assertEqual(
+                    annotationlib.get_annotations(foo, format=format),
+                    {"a": "foo", "b": "str"},
+                )
+
+        self.assertEqual(
+            annotationlib.get_annotations(foo, eval_str=True, locals=locals()),
+            {"a": foo, "b": str},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(foo, eval_str=True, globals=locals()),
+            {"a": foo, "b": str},
+        )
+
+    def test_stock_annotations_in_module(self):
+        isa = inspect_stock_annotations
+
+        for kwargs in [
+            {},
+            {"eval_str": False},
+            {"format": annotationlib.Format.VALUE},
+            {"format": annotationlib.Format.FORWARDREF},
+            {"format": annotationlib.Format.VALUE, "eval_str": False},
+            {"format": annotationlib.Format.FORWARDREF, "eval_str": False},
+        ]:
+            with self.subTest(**kwargs):
+                self.assertEqual(
+                    annotationlib.get_annotations(isa, **kwargs), {"a": int, "b": str}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.MyClass, **kwargs),
+                    {"a": int, "b": str},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function, **kwargs),
+                    {"a": int, "b": str, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function2, **kwargs),
+                    {"a": int, "b": "str", "c": isa.MyClass, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function3, **kwargs),
+                    {"a": "int", "b": "str", "c": "MyClass"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(annotationlib, **kwargs), {}
+                )  # annotations module has no annotations
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.UnannotatedClass, **kwargs), {}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.unannotated_function, **kwargs),
+                    {},
+                )
+
+        for kwargs in [
+            {"eval_str": True},
+            {"format": annotationlib.Format.VALUE, "eval_str": True},
+        ]:
+            with self.subTest(**kwargs):
+                self.assertEqual(
+                    annotationlib.get_annotations(isa, **kwargs), {"a": int, "b": str}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.MyClass, **kwargs),
+                    {"a": int, "b": str},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function, **kwargs),
+                    {"a": int, "b": str, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function2, **kwargs),
+                    {"a": int, "b": str, "c": isa.MyClass, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function3, **kwargs),
+                    {"a": int, "b": str, "c": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(annotationlib, **kwargs), {}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.UnannotatedClass, **kwargs), {}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.unannotated_function, **kwargs),
+                    {},
+                )
+
+        self.assertEqual(
+            annotationlib.get_annotations(isa, format=annotationlib.Format.SOURCE),
+            {"a": "int", "b": "str"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.MyClass, format=annotationlib.Format.SOURCE
+            ),
+            {"a": "int", "b": "str"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.function, format=annotationlib.Format.SOURCE
+            ),
+            {"a": "int", "b": "str", "return": "MyClass"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.function2, format=annotationlib.Format.SOURCE
+            ),
+            {"a": "int", "b": "str", "c": "MyClass", "return": "MyClass"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.function3, format=annotationlib.Format.SOURCE
+            ),
+            {"a": "int", "b": "str", "c": "MyClass"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                annotationlib, format=annotationlib.Format.SOURCE
+            ),
+            {},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.UnannotatedClass, format=annotationlib.Format.SOURCE
+            ),
+            {},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.unannotated_function, format=annotationlib.Format.SOURCE
+            ),
+            {},
+        )
+
+    def test_stock_annotations_on_wrapper(self):
+        isa = inspect_stock_annotations
+
+        wrapped = times_three(isa.function)
+        self.assertEqual(wrapped(1, "x"), isa.MyClass(3, "xxx"))
+        self.assertIsNot(wrapped.__globals__, isa.function.__globals__)
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped),
+            {"a": int, "b": str, "return": isa.MyClass},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                wrapped, format=annotationlib.Format.FORWARDREF
+            ),
+            {"a": int, "b": str, "return": isa.MyClass},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped, format=annotationlib.Format.SOURCE),
+            {"a": "int", "b": "str", "return": "MyClass"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped, eval_str=True),
+            {"a": int, "b": str, "return": isa.MyClass},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped, eval_str=False),
+            {"a": int, "b": str, "return": isa.MyClass},
+        )
+
+    def test_stringized_annotations_in_module(self):
+        isa = inspect_stringized_annotations
+        for kwargs in [
+            {},
+            {"eval_str": False},
+            {"format": annotationlib.Format.VALUE},
+            {"format": annotationlib.Format.FORWARDREF},
+            {"format": annotationlib.Format.SOURCE},
+            {"format": annotationlib.Format.VALUE, "eval_str": False},
+            {"format": annotationlib.Format.FORWARDREF, "eval_str": False},
+            {"format": annotationlib.Format.SOURCE, "eval_str": False},
+        ]:
+            with self.subTest(**kwargs):
+                self.assertEqual(
+                    annotationlib.get_annotations(isa, **kwargs),
+                    {"a": "int", "b": "str"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.MyClass, **kwargs),
+                    {"a": "int", "b": "str"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function, **kwargs),
+                    {"a": "int", "b": "str", "return": "MyClass"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function2, **kwargs),
+                    {"a": "int", "b": "'str'", "c": "MyClass", "return": "MyClass"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function3, **kwargs),
+                    {"a": "'int'", "b": "'str'", "c": "'MyClass'"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.UnannotatedClass, **kwargs), {}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.unannotated_function, **kwargs),
+                    {},
+                )
+
+        for kwargs in [
+            {"eval_str": True},
+            {"format": annotationlib.Format.VALUE, "eval_str": True},
+        ]:
+            with self.subTest(**kwargs):
+                self.assertEqual(
+                    annotationlib.get_annotations(isa, **kwargs), {"a": int, "b": str}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.MyClass, **kwargs),
+                    {"a": int, "b": str},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function, **kwargs),
+                    {"a": int, "b": str, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function2, **kwargs),
+                    {"a": int, "b": "str", "c": isa.MyClass, "return": isa.MyClass},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.function3, **kwargs),
+                    {"a": "int", "b": "str", "c": "MyClass"},
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.UnannotatedClass, **kwargs), {}
+                )
+                self.assertEqual(
+                    annotationlib.get_annotations(isa.unannotated_function, **kwargs),
+                    {},
+                )
+
+    def test_stringized_annotations_in_empty_module(self):
+        isa2 = inspect_stringized_annotations_2
+        self.assertEqual(annotationlib.get_annotations(isa2), {})
+        self.assertEqual(annotationlib.get_annotations(isa2, eval_str=True), {})
+        self.assertEqual(annotationlib.get_annotations(isa2, eval_str=False), {})
+
+    def test_stringized_annotations_on_wrapper(self):
+        isa = inspect_stringized_annotations
+        wrapped = times_three(isa.function)
+        self.assertEqual(wrapped(1, "x"), isa.MyClass(3, "xxx"))
+        self.assertIsNot(wrapped.__globals__, isa.function.__globals__)
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped),
+            {"a": "int", "b": "str", "return": "MyClass"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped, eval_str=True),
+            {"a": int, "b": str, "return": isa.MyClass},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(wrapped, eval_str=False),
+            {"a": "int", "b": "str", "return": "MyClass"},
+        )
+
+    def test_stringized_annotations_on_class(self):
+        isa = inspect_stringized_annotations
+        # test that local namespace lookups work
+        self.assertEqual(
+            annotationlib.get_annotations(isa.MyClassWithLocalAnnotations),
+            {"x": "mytype"},
+        )
+        self.assertEqual(
+            annotationlib.get_annotations(
+                isa.MyClassWithLocalAnnotations, eval_str=True
+            ),
+            {"x": int},
+        )
+
+    def test_modify_annotations(self):
+        def f(x: int):
+            pass
+
+        self.assertEqual(annotationlib.get_annotations(f), {"x": int})
+        self.assertEqual(
+            annotationlib.get_annotations(f, format=annotationlib.Format.FORWARDREF),
+            {"x": int},
+        )
+
+        f.__annotations__["x"] = str
+        # The modification is reflected in VALUE (the default)
+        self.assertEqual(annotationlib.get_annotations(f), {"x": str})
+        # ... but not in FORWARDREF, which uses __annotate__
+        self.assertEqual(
+            annotationlib.get_annotations(f, format=annotationlib.Format.FORWARDREF),
+            {"x": int},
+        )
+
+    def test_pep695_generic_class_with_future_annotations(self):
+        ann_module695 = inspect_stringized_annotations_pep695
+        A_annotations = annotationlib.get_annotations(ann_module695.A, eval_str=True)
+        A_type_params = ann_module695.A.__type_params__
+        self.assertIs(A_annotations["x"], A_type_params[0])
+        self.assertEqual(A_annotations["y"].__args__[0], Unpack[A_type_params[1]])
+        self.assertIs(A_annotations["z"].__args__[0], A_type_params[2])
+
+    def test_pep695_generic_class_with_future_annotations_and_local_shadowing(self):
+        B_annotations = annotationlib.get_annotations(
+            inspect_stringized_annotations_pep695.B, eval_str=True
+        )
+        self.assertEqual(B_annotations, {"x": int, "y": str, "z": bytes})
+
+    def test_pep695_generic_class_with_future_annotations_name_clash_with_global_vars(self):
+        ann_module695 = inspect_stringized_annotations_pep695
+        C_annotations = annotationlib.get_annotations(ann_module695.C, eval_str=True)
+        self.assertEqual(
+            set(C_annotations.values()),
+            set(ann_module695.C.__type_params__)
+        )
+
+    def test_pep_695_generic_function_with_future_annotations(self):
+        ann_module695 = inspect_stringized_annotations_pep695
+        generic_func_annotations = annotationlib.get_annotations(
+            ann_module695.generic_function, eval_str=True
+        )
+        func_t_params = ann_module695.generic_function.__type_params__
+        self.assertEqual(
+            generic_func_annotations.keys(), {"x", "y", "z", "zz", "return"}
+        )
+        self.assertIs(generic_func_annotations["x"], func_t_params[0])
+        self.assertEqual(generic_func_annotations["y"], Unpack[func_t_params[1]])
+        self.assertIs(generic_func_annotations["z"].__origin__, func_t_params[2])
+        self.assertIs(generic_func_annotations["zz"].__origin__, func_t_params[2])
+
+    def test_pep_695_generic_function_with_future_annotations_name_clash_with_global_vars(self):
+        self.assertEqual(
+            set(
+                annotationlib.get_annotations(
+                    inspect_stringized_annotations_pep695.generic_function_2,
+                    eval_str=True
+                ).values()
+            ),
+            set(
+                inspect_stringized_annotations_pep695.generic_function_2.__type_params__
+            )
+        )
+
+    def test_pep_695_generic_method_with_future_annotations(self):
+        ann_module695 = inspect_stringized_annotations_pep695
+        generic_method_annotations = annotationlib.get_annotations(
+            ann_module695.D.generic_method, eval_str=True
+        )
+        params = {
+            param.__name__: param
+            for param in ann_module695.D.generic_method.__type_params__
+        }
+        self.assertEqual(
+            generic_method_annotations,
+            {"x": params["Foo"], "y": params["Bar"], "return": None}
+        )
+
+    def test_pep_695_generic_method_with_future_annotations_name_clash_with_global_vars(self):
+        self.assertEqual(
+            set(
+                annotationlib.get_annotations(
+                    inspect_stringized_annotations_pep695.D.generic_method_2,
+                    eval_str=True
+                ).values()
+            ),
+            set(
+                inspect_stringized_annotations_pep695.D.generic_method_2.__type_params__
+            )
+        )
+
+    def test_pep_695_generic_method_with_future_annotations_name_clash_with_global_and_local_vars(self):
+        self.assertEqual(
+            annotationlib.get_annotations(
+                inspect_stringized_annotations_pep695.E, eval_str=True
+            ),
+            {"x": str},
+        )
+
+    def test_pep_695_generics_with_future_annotations_nested_in_function(self):
+        results = inspect_stringized_annotations_pep695.nested()
+
+        self.assertEqual(
+            set(results.F_annotations.values()),
+            set(results.F.__type_params__)
+        )
+        self.assertEqual(
+            set(results.F_meth_annotations.values()),
+            set(results.F.generic_method.__type_params__)
+        )
+        self.assertNotEqual(
+            set(results.F_meth_annotations.values()),
+            set(results.F.__type_params__)
+        )
+        self.assertEqual(
+            set(results.F_meth_annotations.values()).intersection(results.F.__type_params__),
+            set()
+        )
+
+        self.assertEqual(results.G_annotations, {"x": str})
+
+        self.assertEqual(
+            set(results.generic_func_annotations.values()),
+            set(results.generic_func.__type_params__)
+        )
diff --git a/Lib/test/test_dataclasses/__init__.py b/Lib/test/test_dataclasses/__init__.py
index ffb8bbe75c..b93c99d8c9 100644
--- a/Lib/test/test_dataclasses/__init__.py
+++ b/Lib/test/test_dataclasses/__init__.py
@@ -4807,6 +4807,16 @@ def test_make_dataclass(self):
         self.assertTrue(fields(B)[0].kw_only)
         self.assertFalse(fields(B)[1].kw_only)
 
+    def test_deferred_annotations(self):
+        @dataclass
+        class A:
+            x: undefined
+            y: ClassVar[undefined]
+
+        fs = fields(A)
+        self.assertEqual(len(fs), 1)
+        self.assertEqual(fs[0].name, 'x')
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 492a16a8c7..837f3795f0 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -741,6 +741,26 @@ def wrapper(*args): pass
         self.assertEqual(wrapper.__annotations__, {})
         self.assertEqual(wrapper.__type_params__, ())
 
+    def test_update_wrapper_annotations(self):
+        def inner(x: int): pass
+        def wrapper(*args): pass
+
+        functools.update_wrapper(wrapper, inner)
+        self.assertEqual(wrapper.__annotations__, {'x': int})
+        self.assertIs(wrapper.__annotate__, inner.__annotate__)
+
+        def with_forward_ref(x: undefined): pass
+        def wrapper(*args): pass
+
+        functools.update_wrapper(wrapper, with_forward_ref)
+
+        self.assertIs(wrapper.__annotate__, with_forward_ref.__annotate__)
+        with self.assertRaises(NameError):
+            wrapper.__annotations__
+
+        undefined = str
+        self.assertEqual(wrapper.__annotations__, {'x': undefined})
+
 
 class TestWraps(TestUpdateWrapper):
 
@@ -3059,6 +3079,27 @@ def _(arg: typing.List[float] | bytes):
         self.assertEqual(f(""), "default")
         self.assertEqual(f(b""), "default")
 
+    def test_forward_reference(self):
+        @functools.singledispatch
+        def f(arg, arg2=None):
+            return "default"
+
+        @f.register
+        def _(arg: str, arg2: undefined = None):
+            return "forward reference"
+
+        self.assertEqual(f(1), "default")
+        self.assertEqual(f(""), "forward reference")
+
+    def test_unresolved_forward_reference(self):
+        @functools.singledispatch
+        def f(arg):
+            return "default"
+
+        with self.assertRaises(TypeError):
+            @f.register
+            def _(arg: undefined):
+                return "forward reference"
 
 class CachedCostItem:
     _cost = 1
diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py
index 5b7a639c02..6a841587f4 100644
--- a/Lib/test/test_grammar.py
+++ b/Lib/test/test_grammar.py
@@ -3,6 +3,7 @@
 
 from test.support import check_syntax_error
 from test.support import import_helper
+import annotationlib
 import inspect
 import unittest
 import sys
@@ -459,7 +460,7 @@ def test_var_annot_simple_exec(self):
         gns = {}; lns = {}
         exec("'docstring'\n"
              "x: int = 5\n", gns, lns)
-        self.assertEqual(lns["__annotate__"](1), {'x': int})
+        self.assertEqual(lns["__annotate__"](annotationlib.Format.VALUE), {'x': int})
         with self.assertRaises(KeyError):
             gns['__annotate__']
 
diff --git a/Lib/test/test_inspect/test_inspect.py b/Lib/test/test_inspect/test_inspect.py
index d39c3ccdc8..5521528a52 100644
--- a/Lib/test/test_inspect/test_inspect.py
+++ b/Lib/test/test_inspect/test_inspect.py
@@ -45,10 +45,7 @@
 
 from test.test_inspect import inspect_fodder as mod
 from test.test_inspect import inspect_fodder2 as mod2
-from test.test_inspect import inspect_stock_annotations
 from test.test_inspect import inspect_stringized_annotations
-from test.test_inspect import inspect_stringized_annotations_2
-from test.test_inspect import inspect_stringized_annotations_pep695
 
 
 # Functions tested in this suite:
@@ -126,7 +123,7 @@ def istest(self, predicate, exp):
             self.assertFalse(other(obj), 'not %s(%s)' % (other.__name__, exp))
 
     def test__all__(self):
-        support.check__all__(self, inspect, not_exported=("modulesbyfile",))
+        support.check__all__(self, inspect, not_exported=("modulesbyfile",), extra=("get_annotations",))
 
 def generator_function_example(self):
     for i in range(2):
@@ -1595,216 +1592,6 @@ class C(metaclass=M):
         attrs = [a[0] for a in inspect.getmembers(C)]
         self.assertNotIn('missing', attrs)
 
-    def test_get_annotations_with_stock_annotations(self):
-        def foo(a:int, b:str): pass
-        self.assertEqual(inspect.get_annotations(foo), {'a': int, 'b': str})
-
-        foo.__annotations__ = {'a': 'foo', 'b':'str'}
-        self.assertEqual(inspect.get_annotations(foo), {'a': 'foo', 'b': 'str'})
-
-        self.assertEqual(inspect.get_annotations(foo, eval_str=True, locals=locals()), {'a': foo, 'b': str})
-        self.assertEqual(inspect.get_annotations(foo, eval_str=True, globals=locals()), {'a': foo, 'b': str})
-
-        isa = inspect_stock_annotations
-        self.assertEqual(inspect.get_annotations(isa), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.MyClass), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.function), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function2), {'a': int, 'b': 'str', 'c': isa.MyClass, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function3), {'a': 'int', 'b': 'str', 'c': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(inspect), {}) # inspect module has no annotations
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function), {})
-
-        self.assertEqual(inspect.get_annotations(isa, eval_str=True), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.MyClass, eval_str=True), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.function, eval_str=True), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function2, eval_str=True), {'a': int, 'b': str, 'c': isa.MyClass, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function3, eval_str=True), {'a': int, 'b': str, 'c': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(inspect, eval_str=True), {})
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass, eval_str=True), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function, eval_str=True), {})
-
-        self.assertEqual(inspect.get_annotations(isa, eval_str=False), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.MyClass, eval_str=False), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.function, eval_str=False), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function2, eval_str=False), {'a': int, 'b': 'str', 'c': isa.MyClass, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function3, eval_str=False), {'a': 'int', 'b': 'str', 'c': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(inspect, eval_str=False), {})
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass, eval_str=False), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function, eval_str=False), {})
-
-        def times_three(fn):
-            @functools.wraps(fn)
-            def wrapper(a, b):
-                return fn(a*3, b*3)
-            return wrapper
-
-        wrapped = times_three(isa.function)
-        self.assertEqual(wrapped(1, 'x'), isa.MyClass(3, 'xxx'))
-        self.assertIsNot(wrapped.__globals__, isa.function.__globals__)
-        self.assertEqual(inspect.get_annotations(wrapped), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(wrapped, eval_str=True), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(wrapped, eval_str=False), {'a': int, 'b': str, 'return': isa.MyClass})
-
-    def test_get_annotations_with_stringized_annotations(self):
-        isa = inspect_stringized_annotations
-        self.assertEqual(inspect.get_annotations(isa), {'a': 'int', 'b': 'str'})
-        self.assertEqual(inspect.get_annotations(isa.MyClass), {'a': 'int', 'b': 'str'})
-        self.assertEqual(inspect.get_annotations(isa.function), {'a': 'int', 'b': 'str', 'return': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(isa.function2), {'a': 'int', 'b': "'str'", 'c': 'MyClass', 'return': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(isa.function3), {'a': "'int'", 'b': "'str'", 'c': "'MyClass'"})
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function), {})
-
-        self.assertEqual(inspect.get_annotations(isa, eval_str=True), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.MyClass, eval_str=True), {'a': int, 'b': str})
-        self.assertEqual(inspect.get_annotations(isa.function, eval_str=True), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function2, eval_str=True), {'a': int, 'b': 'str', 'c': isa.MyClass, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(isa.function3, eval_str=True), {'a': 'int', 'b': 'str', 'c': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass, eval_str=True), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function, eval_str=True), {})
-
-        self.assertEqual(inspect.get_annotations(isa, eval_str=False), {'a': 'int', 'b': 'str'})
-        self.assertEqual(inspect.get_annotations(isa.MyClass, eval_str=False), {'a': 'int', 'b': 'str'})
-        self.assertEqual(inspect.get_annotations(isa.function, eval_str=False), {'a': 'int', 'b': 'str', 'return': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(isa.function2, eval_str=False), {'a': 'int', 'b': "'str'", 'c': 'MyClass', 'return': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(isa.function3, eval_str=False), {'a': "'int'", 'b': "'str'", 'c': "'MyClass'"})
-        self.assertEqual(inspect.get_annotations(isa.UnannotatedClass, eval_str=False), {})
-        self.assertEqual(inspect.get_annotations(isa.unannotated_function, eval_str=False), {})
-
-        isa2 = inspect_stringized_annotations_2
-        self.assertEqual(inspect.get_annotations(isa2), {})
-        self.assertEqual(inspect.get_annotations(isa2, eval_str=True), {})
-        self.assertEqual(inspect.get_annotations(isa2, eval_str=False), {})
-
-        def times_three(fn):
-            @functools.wraps(fn)
-            def wrapper(a, b):
-                return fn(a*3, b*3)
-            return wrapper
-
-        wrapped = times_three(isa.function)
-        self.assertEqual(wrapped(1, 'x'), isa.MyClass(3, 'xxx'))
-        self.assertIsNot(wrapped.__globals__, isa.function.__globals__)
-        self.assertEqual(inspect.get_annotations(wrapped), {'a': 'int', 'b': 'str', 'return': 'MyClass'})
-        self.assertEqual(inspect.get_annotations(wrapped, eval_str=True), {'a': int, 'b': str, 'return': isa.MyClass})
-        self.assertEqual(inspect.get_annotations(wrapped, eval_str=False), {'a': 'int', 'b': 'str', 'return': 'MyClass'})
-
-        # test that local namespace lookups work
-        self.assertEqual(inspect.get_annotations(isa.MyClassWithLocalAnnotations), {'x': 'mytype'})
-        self.assertEqual(inspect.get_annotations(isa.MyClassWithLocalAnnotations, eval_str=True), {'x': int})
-
-    def test_pep695_generic_class_with_future_annotations(self):
-        ann_module695 = inspect_stringized_annotations_pep695
-        A_annotations = inspect.get_annotations(ann_module695.A, eval_str=True)
-        A_type_params = ann_module695.A.__type_params__
-        self.assertIs(A_annotations["x"], A_type_params[0])
-        self.assertEqual(A_annotations["y"].__args__[0], Unpack[A_type_params[1]])
-        self.assertIs(A_annotations["z"].__args__[0], A_type_params[2])
-
-    def test_pep695_generic_class_with_future_annotations_and_local_shadowing(self):
-        B_annotations = inspect.get_annotations(
-            inspect_stringized_annotations_pep695.B, eval_str=True
-        )
-        self.assertEqual(B_annotations, {"x": int, "y": str, "z": bytes})
-
-    def test_pep695_generic_class_with_future_annotations_name_clash_with_global_vars(self):
-        ann_module695 = inspect_stringized_annotations_pep695
-        C_annotations = inspect.get_annotations(ann_module695.C, eval_str=True)
-        self.assertEqual(
-            set(C_annotations.values()),
-            set(ann_module695.C.__type_params__)
-        )
-
-    def test_pep_695_generic_function_with_future_annotations(self):
-        ann_module695 = inspect_stringized_annotations_pep695
-        generic_func_annotations = inspect.get_annotations(
-            ann_module695.generic_function, eval_str=True
-        )
-        func_t_params = ann_module695.generic_function.__type_params__
-        self.assertEqual(
-            generic_func_annotations.keys(), {"x", "y", "z", "zz", "return"}
-        )
-        self.assertIs(generic_func_annotations["x"], func_t_params[0])
-        self.assertEqual(generic_func_annotations["y"], Unpack[func_t_params[1]])
-        self.assertIs(generic_func_annotations["z"].__origin__, func_t_params[2])
-        self.assertIs(generic_func_annotations["zz"].__origin__, func_t_params[2])
-
-    def test_pep_695_generic_function_with_future_annotations_name_clash_with_global_vars(self):
-        self.assertEqual(
-            set(
-                inspect.get_annotations(
-                    inspect_stringized_annotations_pep695.generic_function_2,
-                    eval_str=True
-                ).values()
-            ),
-            set(
-                inspect_stringized_annotations_pep695.generic_function_2.__type_params__
-            )
-        )
-
-    def test_pep_695_generic_method_with_future_annotations(self):
-        ann_module695 = inspect_stringized_annotations_pep695
-        generic_method_annotations = inspect.get_annotations(
-            ann_module695.D.generic_method, eval_str=True
-        )
-        params = {
-            param.__name__: param
-            for param in ann_module695.D.generic_method.__type_params__
-        }
-        self.assertEqual(
-            generic_method_annotations,
-            {"x": params["Foo"], "y": params["Bar"], "return": None}
-        )
-
-    def test_pep_695_generic_method_with_future_annotations_name_clash_with_global_vars(self):
-        self.assertEqual(
-            set(
-                inspect.get_annotations(
-                    inspect_stringized_annotations_pep695.D.generic_method_2,
-                    eval_str=True
-                ).values()
-            ),
-            set(
-                inspect_stringized_annotations_pep695.D.generic_method_2.__type_params__
-            )
-        )
-
-    def test_pep_695_generic_method_with_future_annotations_name_clash_with_global_and_local_vars(self):
-        self.assertEqual(
-            inspect.get_annotations(
-                inspect_stringized_annotations_pep695.E, eval_str=True
-            ),
-            {"x": str},
-        )
-
-    def test_pep_695_generics_with_future_annotations_nested_in_function(self):
-        results = inspect_stringized_annotations_pep695.nested()
-
-        self.assertEqual(
-            set(results.F_annotations.values()),
-            set(results.F.__type_params__)
-        )
-        self.assertEqual(
-            set(results.F_meth_annotations.values()),
-            set(results.F.generic_method.__type_params__)
-        )
-        self.assertNotEqual(
-            set(results.F_meth_annotations.values()),
-            set(results.F.__type_params__)
-        )
-        self.assertEqual(
-            set(results.F_meth_annotations.values()).intersection(results.F.__type_params__),
-            set()
-        )
-
-        self.assertEqual(results.G_annotations, {"x": str})
-
-        self.assertEqual(
-            set(results.generic_func_annotations.values()),
-            set(results.generic_func.__type_params__)
-        )
-
 
 class TestFormatAnnotation(unittest.TestCase):
     def test_typing_replacement(self):
diff --git a/Lib/test/test_type_annotations.py b/Lib/test/test_type_annotations.py
index a9be1f5aa8..91082e6b23 100644
--- a/Lib/test/test_type_annotations.py
+++ b/Lib/test/test_type_annotations.py
@@ -1,12 +1,9 @@
+import annotationlib
 import textwrap
 import types
 import unittest
 from test.support import run_code, check_syntax_error
 
-VALUE = 1
-FORWARDREF = 2
-SOURCE = 3
-
 
 class TypeAnnotationTests(unittest.TestCase):
 
@@ -376,12 +373,12 @@ class X:
                 self.assertIsInstance(annotate, types.FunctionType)
                 self.assertEqual(annotate.__name__, "__annotate__")
                 with self.assertRaises(NotImplementedError):
-                    annotate(FORWARDREF)
+                    annotate(annotationlib.Format.FORWARDREF)
                 with self.assertRaises(NotImplementedError):
-                    annotate(SOURCE)
+                    annotate(annotationlib.Format.SOURCE)
                 with self.assertRaises(NotImplementedError):
                     annotate(None)
-                self.assertEqual(annotate(VALUE), {"x": int})
+                self.assertEqual(annotate(annotationlib.Format.VALUE), {"x": int})
 
     def test_comprehension_in_annotation(self):
         # This crashed in an earlier version of the code
@@ -398,7 +395,7 @@ def f(x: int) -> int: pass
         f = ns["f"]
         self.assertIsInstance(f.__annotate__, types.FunctionType)
         annos = {"x": "int", "return": "int"}
-        self.assertEqual(f.__annotate__(VALUE), annos)
+        self.assertEqual(f.__annotate__(annotationlib.Format.VALUE), annos)
         self.assertEqual(f.__annotations__, annos)
 
     def test_name_clash_with_format(self):
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index a931da5590..290b3c63a7 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -1,3 +1,4 @@
+import annotationlib
 import contextlib
 import collections
 import collections.abc
@@ -45,7 +46,7 @@
 import weakref
 import types
 
-from test.support import captured_stderr, cpython_only, infinite_recursion, requires_docstrings, import_helper
+from test.support import captured_stderr, cpython_only, infinite_recursion, requires_docstrings, import_helper, run_code
 from test.typinganndata import ann_module695, mod_generics_cache, _typed_dict_helper
 
 
@@ -7812,6 +7813,48 @@ class XMethBad2(NamedTuple):
                 def _source(self):
                     return 'no chance for this as well'
 
+    def test_annotation_type_check(self):
+        # These are rejected by _type_check
+        with self.assertRaises(TypeError):
+            class X(NamedTuple):
+                a: Final
+        with self.assertRaises(TypeError):
+            class Y(NamedTuple):
+                a: (1, 2)
+
+        # Conversion by _type_convert
+        class Z(NamedTuple):
+            a: None
+            b: "str"
+        annos = {'a': type(None), 'b': ForwardRef("str")}
+        self.assertEqual(Z.__annotations__, annos)
+        self.assertEqual(Z.__annotate__(annotationlib.Format.VALUE), annos)
+        self.assertEqual(Z.__annotate__(annotationlib.Format.FORWARDREF), annos)
+        self.assertEqual(Z.__annotate__(annotationlib.Format.SOURCE), {"a": "None", "b": "str"})
+
+    def test_future_annotations(self):
+        code = """
+        from __future__ import annotations
+        from typing import NamedTuple
+        class X(NamedTuple):
+            a: int
+            b: None
+        """
+        ns = run_code(textwrap.dedent(code))
+        X = ns['X']
+        self.assertEqual(X.__annotations__, {'a': ForwardRef("int"), 'b': ForwardRef("None")})
+
+    def test_deferred_annotations(self):
+        class X(NamedTuple):
+            y: undefined
+
+        self.assertEqual(X._fields, ('y',))
+        with self.assertRaises(NameError):
+            X.__annotations__
+
+        undefined = int
+        self.assertEqual(X.__annotations__, {'y': int})
+
     def test_multiple_inheritance(self):
         class A:
             pass
@@ -8126,7 +8169,11 @@ def test_basics_functional_syntax(self):
         self.assertEqual(Emp.__name__, 'Emp')
         self.assertEqual(Emp.__module__, __name__)
         self.assertEqual(Emp.__bases__, (dict,))
-        self.assertEqual(Emp.__annotations__, {'name': str, 'id': int})
+        annos = {'name': str, 'id': int}
+        self.assertEqual(Emp.__annotations__, annos)
+        self.assertEqual(Emp.__annotate__(annotationlib.Format.VALUE), annos)
+        self.assertEqual(Emp.__annotate__(annotationlib.Format.FORWARDREF), annos)
+        self.assertEqual(Emp.__annotate__(annotationlib.Format.SOURCE), {'name': 'str', 'id': 'int'})
         self.assertEqual(Emp.__total__, True)
         self.assertEqual(Emp.__required_keys__, {'name', 'id'})
         self.assertIsInstance(Emp.__required_keys__, frozenset)
@@ -8487,6 +8534,8 @@ class A[T](TypedDict):
         self.assertEqual(A.__bases__, (Generic, dict))
         self.assertEqual(A.__orig_bases__, (TypedDict, Generic[T]))
         self.assertEqual(A.__mro__, (A, Generic, dict, object))
+        self.assertEqual(A.__annotations__, {'a': T})
+        self.assertEqual(A.__annotate__(annotationlib.Format.SOURCE), {'a': 'T'})
         self.assertEqual(A.__parameters__, (T,))
         self.assertEqual(A[str].__parameters__, ())
         self.assertEqual(A[str].__args__, (str,))
@@ -8498,6 +8547,8 @@ class A(TypedDict, Generic[T]):
         self.assertEqual(A.__bases__, (Generic, dict))
         self.assertEqual(A.__orig_bases__, (TypedDict, Generic[T]))
         self.assertEqual(A.__mro__, (A, Generic, dict, object))
+        self.assertEqual(A.__annotations__, {'a': T})
+        self.assertEqual(A.__annotate__(annotationlib.Format.SOURCE), {'a': 'T'})
         self.assertEqual(A.__parameters__, (T,))
         self.assertEqual(A[str].__parameters__, ())
         self.assertEqual(A[str].__args__, (str,))
@@ -8508,6 +8559,8 @@ class A2(Generic[T], TypedDict):
         self.assertEqual(A2.__bases__, (Generic, dict))
         self.assertEqual(A2.__orig_bases__, (Generic[T], TypedDict))
         self.assertEqual(A2.__mro__, (A2, Generic, dict, object))
+        self.assertEqual(A2.__annotations__, {'a': T})
+        self.assertEqual(A2.__annotate__(annotationlib.Format.SOURCE), {'a': 'T'})
         self.assertEqual(A2.__parameters__, (T,))
         self.assertEqual(A2[str].__parameters__, ())
         self.assertEqual(A2[str].__args__, (str,))
@@ -8518,6 +8571,8 @@ class B(A[KT], total=False):
         self.assertEqual(B.__bases__, (Generic, dict))
         self.assertEqual(B.__orig_bases__, (A[KT],))
         self.assertEqual(B.__mro__, (B, Generic, dict, object))
+        self.assertEqual(B.__annotations__, {'a': T, 'b': KT})
+        self.assertEqual(B.__annotate__(annotationlib.Format.SOURCE), {'a': 'T', 'b': 'KT'})
         self.assertEqual(B.__parameters__, (KT,))
         self.assertEqual(B.__total__, False)
         self.assertEqual(B.__optional_keys__, frozenset(['b']))
@@ -8542,6 +8597,11 @@ class C(B[int]):
             'b': KT,
             'c': int,
         })
+        self.assertEqual(C.__annotate__(annotationlib.Format.SOURCE), {
+            'a': 'T',
+            'b': 'KT',
+            'c': 'int',
+        })
         with self.assertRaises(TypeError):
             C[str]
 
@@ -8561,6 +8621,11 @@ class Point3D(Point2DGeneric[T], Generic[T, KT]):
             'b': T,
             'c': KT,
         })
+        self.assertEqual(Point3D.__annotate__(annotationlib.Format.SOURCE), {
+            'a': 'T',
+            'b': 'T',
+            'c': 'KT',
+        })
         self.assertEqual(Point3D[int, str].__origin__, Point3D)
 
         with self.assertRaises(TypeError):
@@ -8592,6 +8657,11 @@ class WithImplicitAny(B):
             'b': KT,
             'c': int,
         })
+        self.assertEqual(WithImplicitAny.__annotate__(annotationlib.Format.SOURCE), {
+            'a': 'T',
+            'b': 'KT',
+            'c': 'int',
+        })
         with self.assertRaises(TypeError):
             WithImplicitAny[str]
 
@@ -8748,6 +8818,54 @@ class AllTheThings(TypedDict):
             },
         )
 
+    def test_annotations(self):
+        # _type_check is applied
+        with self.assertRaisesRegex(TypeError, "Plain typing.Final is not valid as type argument"):
+            class X(TypedDict):
+                a: Final
+
+        # _type_convert is applied
+        class Y(TypedDict):
+            a: None
+            b: "int"
+        fwdref = ForwardRef('int', module='test.test_typing')
+        self.assertEqual(Y.__annotations__, {'a': type(None), 'b': fwdref})
+        self.assertEqual(Y.__annotate__(annotationlib.Format.FORWARDREF), {'a': type(None), 'b': fwdref})
+
+        # _type_check is also applied later
+        class Z(TypedDict):
+            a: undefined
+
+        with self.assertRaises(NameError):
+            Z.__annotations__
+
+        undefined = Final
+        with self.assertRaisesRegex(TypeError, "Plain typing.Final is not valid as type argument"):
+            Z.__annotations__
+
+        undefined = None
+        self.assertEqual(Z.__annotations__, {'a': type(None)})
+
+    def test_deferred_evaluation(self):
+        class A(TypedDict):
+            x: NotRequired[undefined]
+            y: ReadOnly[undefined]
+            z: Required[undefined]
+
+        self.assertEqual(A.__required_keys__, frozenset({'y', 'z'}))
+        self.assertEqual(A.__optional_keys__, frozenset({'x'}))
+        self.assertEqual(A.__readonly_keys__, frozenset({'y'}))
+        self.assertEqual(A.__mutable_keys__, frozenset({'x', 'z'}))
+
+        with self.assertRaises(NameError):
+            A.__annotations__
+
+        self.assertEqual(
+            A.__annotate__(annotationlib.Format.SOURCE),
+            {'x': 'NotRequired[undefined]', 'y': 'ReadOnly[undefined]',
+             'z': 'Required[undefined]'},
+        )
+
 
 class RequiredTests(BaseTestCase):
 
@@ -10075,7 +10193,6 @@ def test_special_attrs(self):
             typing.ClassVar: 'ClassVar',
             typing.Concatenate: 'Concatenate',
             typing.Final: 'Final',
-            typing.ForwardRef: 'ForwardRef',
             typing.Literal: 'Literal',
             typing.NewType: 'NewType',
             typing.NoReturn: 'NoReturn',
@@ -10087,7 +10204,7 @@ def test_special_attrs(self):
             typing.TypeVar: 'TypeVar',
             typing.Union: 'Union',
             typing.Self: 'Self',
-            # Subscribed special forms
+            # Subscripted special forms
             typing.Annotated[Any, "Annotation"]: 'Annotated',
             typing.Annotated[int, 'Annotation']: 'Annotated',
             typing.ClassVar[Any]: 'ClassVar',
@@ -10102,7 +10219,6 @@ def test_special_attrs(self):
             typing.Union[Any]: 'Any',
             typing.Union[int, float]: 'Union',
             # Incompatible special forms (tested in test_special_attrs2)
-            # - typing.ForwardRef('set[Any]')
             # - typing.NewType('TypeName', Any)
             # - typing.ParamSpec('SpecialAttrsP')
             # - typing.TypeVar('T')
@@ -10121,18 +10237,6 @@ def test_special_attrs(self):
     TypeName = typing.NewType('SpecialAttrsTests.TypeName', Any)
 
     def test_special_attrs2(self):
-        # Forward refs provide a different introspection API. __name__ and
-        # __qualname__ make little sense for forward refs as they can store
-        # complex typing expressions.
-        fr = typing.ForwardRef('set[Any]')
-        self.assertFalse(hasattr(fr, '__name__'))
-        self.assertFalse(hasattr(fr, '__qualname__'))
-        self.assertEqual(fr.__module__, 'typing')
-        # Forward refs are currently unpicklable.
-        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
-            with self.assertRaises(TypeError):
-                pickle.dumps(fr, proto)
-
         self.assertEqual(SpecialAttrsTests.TypeName.__name__, 'TypeName')
         self.assertEqual(
             SpecialAttrsTests.TypeName.__qualname__,