chore: import upstream snapshot with attribution

python/tvm/relax/script/builder/frame.py

@@ -0,0 +1,52 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+"""IR Builder Frame for Relax dialect"""
+
+from tvm_ffi import register_object as _register_object
+
+from tvm.script.ir_builder.base import IRBuilderFrame
+
+
+@_register_object("script.ir_builder.relax.RelaxFrame")
+class RelaxFrame(IRBuilderFrame):
+    """The base ir_builder frame for the relax dialect."""
+
+
+@_register_object("script.ir_builder.relax.SeqExprFrame")
+class SeqExprFrame(RelaxFrame): ...
+
+
+@_register_object("script.ir_builder.relax.FunctionFrame")
+class FunctionFrame(SeqExprFrame):
+    """The ir_builder frame for the relax function."""
+
+
+@_register_object("script.ir_builder.relax.BindingBlockFrame")
+class BindingBlockFrame(RelaxFrame):
+    """The ir_builder frame for relax binding blocks."""
+
+
+@_register_object("script.ir_builder.relax.IfFrame")
+class IfFrame(RelaxFrame): ...
+
+
+@_register_object("script.ir_builder.relax.ThenFrame")
+class ThenFrame(SeqExprFrame): ...
+
+
+@_register_object("script.ir_builder.relax.ElseFrame")
+class ElseFrame(SeqExprFrame): ...