chore: import upstream snapshot with attribution

2026-07-13 13:36:55 +08:00
commit c8a779b1bb
1887 changed files with 3245738 additions and 0 deletions
@@ -0,0 +1,40 @@
+#
+# SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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.
+#
+
+from polygraphy import func, mod
+
+
+@mod.export()
+class BaseLoader:
+    """
+    Base class for Polygraphy Loaders.
+    """
+
+    # Implementation for ``__call__``. Derived classes should implement this
+    # method rather than ``__call__``.
+    def call_impl(self, *args, **kwargs):
+        raise NotImplementedError("BaseLoader is an abstract class")
+
+    @func.constantmethod
+    def __call__(self, *args, **kwargs):
+        """
+        Invokes the loader by forwarding arguments to ``call_impl``.
+
+        Note: ``call_impl`` should *not* be called directly - use this function instead.
+        """
+        __doc__ = self.call_impl.__doc__
+        return self.call_impl(*args, **kwargs)