feat: exclude inherited by default

README.md

@@ -6,9 +6,13 @@
 [![CI](https://github.com/tlambert03/griffe-fieldz/actions/workflows/ci.yml/badge.svg)](https://github.com/tlambert03/griffe-fieldz/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/tlambert03/griffe-fieldz/branch/main/graph/badge.svg)](https://codecov.io/gh/tlambert03/griffe-fieldz)
 
-Griffe extension adding support for data-class like things (pydantic, attrs, etc...). This extension will inject the fields of the data-class into the documentation, preventing you from duplicating field metadata in your docstrings.
+Griffe extension adding support for data-class like things (pydantic, attrs,
+etc...). This extension will inject the fields of the data-class into the
+documentation, preventing you from duplicating field metadata in your
+docstrings.
 
-It supports anything that [fieldz](https://github.com/pyapp-kit/fieldz) supports, which is currently:
+It supports anything that [fieldz](https://github.com/pyapp-kit/fieldz)
+supports, which is currently:
 
 - [`dataclasses.dataclass`](https://docs.python.org/3/library/dataclasses.html#dataclasses.dataclass)
 - [`pydantic.BaseModel`](https://docs.pydantic.dev/latest/)
@@ -35,3 +39,19 @@ plugins:
           extensions:
           - griffe_fieldz
 ```
+
+You may use any of the following options, provided as a dictionary under the
+`griffe_fieldz` key.
+
+| Option              | Description                                      | Default |
+|---------------------|--------------------------------------------------|---------|
+| `include_inherited` | Include inherited fields in class parameters.    | `False` |
+| `include_private`   | Include private fields in the documentation.     | `False` |
+
+For example:
+
+```yml
+        options:
+          extensions:
+          - griffe_fieldz: {include_inherited: true}
+```

src/griffe_fieldz/_extension.py

@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import inspect
+from operator import ge
 from typing import TYPE_CHECKING, Any, Iterable, Sequence
 
 import fieldz
@@ -33,11 +34,13 @@ def __init__(
         self,
         object_paths: list[str] | None = None,
         include_private: bool = False,
+        include_inherited: bool = False,
         **kwargs: Any,
     ) -> None:
         self.object_paths = object_paths
         self._kwargs = kwargs
         self.include_private = include_private
+        self.include_inherited = include_inherited
 
     def on_class_instance(self, *, node: ast.AST | ObjectNode, cls: Class) -> None:
         if isinstance(node, ObjectNode):
@@ -68,6 +71,10 @@ def _inject_fields(self, obj: Object, runtime_obj: type[BaseModel]) -> None:
 
         # collect field info
         fields = fieldz.fields(runtime_obj)
+        if not self.include_inherited:
+            annotations = getattr(runtime_obj, "__annotations__", {})
+            fields = tuple(f for f in fields if f.name in annotations)
+
         params, attrs = _fields_to_params(fields, obj.docstring, self.include_private)
 
         # merge/add field info to docstring
@@ -104,7 +111,9 @@ def _default_repr(field: fieldz.Field) -> str | None:
 
 
 def _fields_to_params(
-    fields: Iterable[fieldz.Field], docstring: Docstring, include_private: bool = False
+    fields: Iterable[fieldz.Field],
+    docstring: Docstring,
+    include_private: bool = False,
 ) -> tuple[list[DocstringParameter], list[DocstringAttribute]]:
     """Get all docstring attributes and parameters for fields."""
     params: list[DocstringParameter] = []