fix: interpretation for arrays of non-numerical objects issue 880 par…

…t2 (#911)

* fix: interpretation for arrays of non-numerical objects issue 880 part2

* style: pre-commit fixes

* Change name of test file to match PR nr.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/uproot/interpretation/identify.py

@@ -480,15 +480,23 @@ def interpretation_of(branch, context, simplify=True):
                 while isinstance(model_cls, uproot.containers.AsPointer):
                     model_cls = model_cls.pointee
 
-            if branch._streamer_isTClonesArray:
-                if isinstance(branch.streamer, uproot.streamers.Model_TStreamerObject):
+            if dims != () or branch._streamer_isTClonesArray:
+                if (
+                    isinstance(branch.streamer, uproot.streamers.Model_TStreamerObject)
+                    or not branch._streamer_isTClonesArray
+                ):
                     model_cls = uproot.containers.AsArray(False, False, model_cls, dims)
                 else:
                     if hasattr(model_cls, "header"):
                         model_cls._header = False
                     model_cls = uproot.containers.AsArray(True, False, model_cls, dims)
 
-            out = uproot.interpretation.objects.AsObjects(model_cls, branch)
+            if dims != () and not branch._streamer_isTClonesArray:
+                out = uproot.interpretation.objects.AsObjects(model_cls, branch)
+                out._forth = False
+            else:
+                out = uproot.interpretation.objects.AsObjects(model_cls, branch)
+
             if simplify:
                 return out.simplify()
             else:

tests/test_0911-fix_interp_array_non_numerical_objs_issue_880.py

@@ -0,0 +1,16 @@
+# BSD 3-Clause License; see https://github.com/scikit-hep/uproot5/blob/main/LICENSE
+
+import uproot
+import skhep_testdata
+
+
+def test_fix_interpretation_for_arrays_of_nonnumerical_objects_issue_880_p2():
+    with uproot.open(skhep_testdata.data_path("uproot-issue-880.root")) as file:
+        branch = file["Z/Event/Cluster[6]"]
+        array = branch.array(library="ak")
+        interp = uproot.interpretation.identify.interpretation_of(
+            branch, {}, False
+        )  # AsObjects(AsArray(False, False, Model_zCluster, (6,)))
+
+        assert len(array) == 116
+        assert len(array[0][0]) == 6  # all 6 cluster can now be accessed