/**
 * Copyright 2020 Huawei Technologies Co., Ltd
 *
 * 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.
 */

#ifndef GE_GRAPH_PASSES_WHILE_OP_LABEL_PASS_H_
#define GE_GRAPH_PASSES_WHILE_OP_LABEL_PASS_H_

#include "graph/node.h"
#include "graph/label/label_maker.h"
/*******************************************************************************
                                                                +------------+
                                                                |    Node    |
                                                                +------------+
                                                                |    Node    |
                                                                +------------+
                                                                |    While   |
                                                                +------------+
              +-----------+
              |   Node    |                                     +------------+
              +-----------+                                     | LabelSet   |\
              |   Node    |                                     +------------+ \
              +-----------+                                     |StreamActive|  \
              |   Node    |                                     +------------+   A
              +-----------+                                     |     c      |   |
              |   While   |                                     +------------+   |
              +-----------+                                     |     o      |   |
              |   Node    |                                     +------------+   |
              +-----------+                                     |     n      |   |
              |   Node    |                                     +------------+   |
              +-----------+                                     |     d      |   |
              |   Node    |                                     +------------+   |
              +-----------+                                    /|SwitchByIdx |   |
                                                              / +------------+   |
                                               ====>         /                   |
                                                            | \ +------------+   |
                                                            |  \|LabelSet(1) |   |
                                                            |   +------------+   |
                                                            |   |StreamActive|   |
                                                            |   +------------+   |
    +-----------+      +-----------+                        |   |     b      |   |
    |     c     |      |     b     |                        |   +------------+   |
    +-----------+      +-----------+                        |   |     o      |   |
    |     o     |      |     o     |                        |   +------------+   |
    +-----------+      +-----------+                        |   |     d      |   |
    |     n     |      |     d     |                        |   +------------+   |
    +-----------+      +-----------+                        |   |     y      |  /
    |     d     |      |     y     |                        V   +------------+ /
    +-----------+      +-----------+                         \  | LabelGoto  |/
                                                              \ +------------+
                                                               \|LabelSet(0) |
                                                                +------------+

                                                                +------------+
                                                                |    Node    |
                                                                +------------+
                                                                |    Node    |
                                                                +------------+
                                                                |    Node    |
                                                                +------------+
*******************************************************************************/
namespace ge {
class WhileOpLabelMaker : public LabelMaker {
 public:
  WhileOpLabelMaker(const ComputeGraphPtr &graph, const NodePtr &owner) : LabelMaker(graph, owner) {}

  ~WhileOpLabelMaker() override {}

  virtual Status Run(uint32_t &label_index);
};
}  // namespace ge
#endif  // GE_GRAPH_PASSES_WHILE_OP_LABEL_PASS_H_