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/*
 * Copyright (c) 2019 Samsung Electronics Co., Ltd. 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 "CircleTypeInferenceRule.h"

#include "Dialect/IR/CircleDialect.h"
#include "Dialect/IR/CircleNodeVisitor.h"
#include "Dialect/IR/CircleNodes.h"

#include <cassert>

namespace
{

struct TypeInferenceAlgorithm final : public locoex::CircleNodeVisitor<loco::DataType>
{
  loco::DataType visit(const locoex::CircleInstanceNorm *node) final
  {
    return loco::dtype_get(node->input());
  }
};

} // namespace

namespace locoex
{

bool CircleTypeInferenceRule::recognize(const loco::Dialect *d) const
{
  return CircleDialect::get() == d;
}

bool CircleTypeInferenceRule::infer(const loco::Node *node, loco::DataType &dtype) const
{
  assert(node->dialect() == CircleDialect::get());

  TypeInferenceAlgorithm alg;

  dtype = dynamic_cast<const CircleNode *>(node)->accept(&alg);
  assert(dtype != loco::DataType::Unknown);

  return true;
}

} // namespace locoex