chore: import upstream snapshot with attribution

python/paddle/apy/sys/__builtin_registry_item__.py

@@ -0,0 +1,62 @@
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import __builtin__
+
+
+class RegistryEntry:
+    def __init__(self):
+        self.__tag_name__ = None
+        self.__nice__ = None
+        self.__values__ = __builtin__.MutableList()
+        self.__child_register_item_name2value__ = (
+            __builtin__.MutableOrderedDict()
+        )
+
+    # tag_name: str
+    # nice: int
+    def __getattr__(self, attrname):
+        def contains():
+            return self.__child_register_item_name2value__.contains(attrname)
+
+        def find():
+            return self.__child_register_item_name2value__[attrname]
+
+        def create():
+            register_entry = RegistryEntry()
+            self.__child_register_item_name2value__[attrname] = register_entry
+            return register_entry
+
+        return find() if contains() else create()
+
+    def __call__(self, tag_name, nice):
+        registry_obj = RegistryObject(tag_name, nice)
+        self.__values__.append(registry_obj)
+        return RegisterItemDecorator(registry_obj)
+
+
+class RegistryObject:
+    def __init__(self, tag_name, nice):
+        self.tag_name = tag_name
+        self.nice = nice
+        self.value = None
+
+
+class RegisterItemDecorator:
+    def __init__(self, register_obj):
+        self.register_obj = register_obj
+
+    def __call__(self, value):
+        self.register_obj.value = value
+        return value