fix: Don't trigger alias resolution while checking docstrings presence

Issue #37: #37

src/griffe/dataclasses.py

@@ -350,7 +350,12 @@ def has_docstring(self) -> bool:
     @property
     def has_docstrings(self) -> bool:
         """Tell if this object or any of its members has a non-empty docstring."""
-        return self.has_docstring or any(member.has_docstrings for member in self.members.values())  # noqa: DAR201
+        if self.has_docstring:  # noqa: DAR201
+            return True
+        for member in self.members.values():
+            if (not member.is_alias or member.resolved) and member.has_docstring:  # type: ignore[union-attr]
+                return True
+        return False
 
     def member_is_exported(self, member: Object | Alias, explicitely: bool = True) -> bool:
         """Tell if a member of this object is "exported".

tests/helpers.py

@@ -31,7 +31,7 @@ def temporary_pyfile(code: str) -> Iterator[tuple[str, Path]]:
     """
     with tempfile.TemporaryDirectory(prefix=TMPDIR_PREFIX) as tmpdir:
         tmpfile = Path(tmpdir) / "module.py"
-        tmpfile.write_text(code)
+        tmpfile.write_text(dedent(code))
         yield "module", tmpfile
 
 
@@ -96,7 +96,7 @@ def temporary_inspected_module(code: str) -> Iterator[Module]:
     Yields:
         The inspected module.
     """
-    with temporary_pyfile(dedent(code)) as (name, path):
+    with temporary_pyfile(code) as (name, path):
         try:
             yield inspect(name, filepath=path)
         finally:

tests/test_loader.py

@@ -0,0 +1,14 @@
+"""Tests for the `loader` module."""
+
+from griffe.loader import GriffeLoader
+from tests.helpers import temporary_pyfile
+
+
+def test_has_docstrings_does_not_try_to_resolve_alias():
+    """Assert that checkins presence of docstrings does not trigger alias resolution."""
+    with temporary_pyfile("""from abc import abstractmethod""") as (module_name, path):
+        loader = GriffeLoader(search_paths=[path.parent])
+        module = loader.load_module(module_name)
+        loader.resolve_aliases()
+        assert "abstractmethod" in module.members
+        assert not module.has_docstrings