if there is a syntax error in the annotations the should be ignored f…

…or the function

hypothesis-python/src/hypothesis/extra/ghostwriter.py

@@ -831,8 +831,14 @@ def _annotate_args(
 ) -> Iterable[str]:
     arg_parameters: DefaultDict[str, Set[Any]] = defaultdict(set)
     for func in funcs:
-        for key, param in _get_params(func, eval_str=True).items():
-            arg_parameters[key].add(param.annotation)
+        try:
+            params = _get_params(func, eval_str=True)
+        except Exception:
+            # don't add parameters if the annotations could not be evaluated
+            pass
+        else:
+            for key, param in params.items():
+                arg_parameters[key].add(param.annotation)
 
     for argname in argnames:
         parameters = arg_parameters.get(argname)

hypothesis-python/tests/ghostwriter/example_code/future_annotations.py

@@ -28,3 +28,7 @@ def merge_dicts(
     map1: collections.abc.Mapping[str, int], map2: collections.abc.Mapping[str, int]
 ) -> collections.abc.Mapping[str, int]:
     return {**map1, **map2}
+
+
+def invalid_types(attr1: int, attr2: UnknownClass, attr3: str) -> None:
+    pass

hypothesis-python/tests/ghostwriter/recorded/invalid_types.txt

@@ -0,0 +1,12 @@
+# This test code was written by the `hypothesis.extra.ghostwriter` module
+# and is provided under the Creative Commons Zero public domain dedication.
+
+import example_code.future_annotations
+from hypothesis import given, strategies as st
+
+# TODO: replace st.nothing() with appropriate strategies
+
+
+@given(attr1=st.nothing(), attr2=st.nothing(), attr3=st.nothing())
+def test_fuzz_invalid_types(attr1, attr2, attr3) -> None:
+    example_code.future_annotations.invalid_types(attr1=attr1, attr2=attr2, attr3=attr3)

hypothesis-python/tests/ghostwriter/test_expected_output.py

@@ -25,7 +25,11 @@
 
 import numpy
 import pytest
-from example_code.future_annotations import add_custom_classes, merge_dicts
+from example_code.future_annotations import (
+    add_custom_classes,
+    invalid_types,
+    merge_dicts,
+)
 
 import hypothesis
 from hypothesis.extra import ghostwriter
@@ -132,6 +136,10 @@ def union_sequence_parameter(items: Sequence[Union[float, int]]) -> float:
             ("merge_dicts", ghostwriter.magic(merge_dicts)),
             marks=pytest.mark.skipif("sys.version_info[:2] < (3, 10)"),
         ),
+        pytest.param(
+            ("invalid_types", ghostwriter.magic(invalid_types)),
+            marks=pytest.mark.skipif("sys.version_info[:2] < (3, 10)"),
+        ),
         ("magic_base64_roundtrip", ghostwriter.magic(base64.b64encode)),
         (
             "magic_base64_roundtrip_with_annotations",