chore: import upstream snapshot with attribution

paddle/fluid/framework/ir/node.cc

@@ -0,0 +1,40 @@
+/* Copyright (c) 2018 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. */
+
+#include "paddle/fluid/framework/ir/node.h"
+
+namespace paddle::framework::ir {
+// msvc15 don't support constexpr in correct way.
+// static constexpr member implies inline since CXX17 and may cause multiple
+// definition.
+#if !defined(_WIN32) && (__cplusplus < 201703L)
+constexpr char Node::kControlDepVarName[];
+#else
+const char Node::kControlDepVarName[] = "__control_var";  // NOLINT
+#endif
+
+std::unique_ptr<Node> CreateNodeForTest(const std::string &name,
+                                        Node::Type type) {
+  return std::unique_ptr<Node>(new Node(name, type));
+}
+
+std::unique_ptr<Node> CreateNodeForTest(VarDesc *var_desc) {
+  return std::unique_ptr<Node>(new Node(var_desc, 0));
+}
+
+std::unique_ptr<Node> CreateNodeForTest(OpDesc *op_desc) {
+  return std::unique_ptr<Node>(new Node(op_desc));
+}
+
+}  // namespace paddle::framework::ir