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/*
 * Copyright 2016 Objectos, Fábrica de Software LTDA.
 *
 * 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.
 */
package br.com.objectos.way.code;

import java.util.List;

import br.com.objectos.core.util.ImmutableList;

/**
 * @author [email protected] (Marcio Endo)
 */
public abstract class EnumInfo {

  private static final EnumInfo NOT_ENUM_INFO = new NotEnumInfo();

  public abstract List enumConstantInfoList();

  EnumInfo() {
  }

  public static EnumInfo of(SimpleTypeInfo simpleTypeInfo) {
    return simpleTypeInfo.isEnum()
        ? simpleTypeInfo.toEnumInfo()
        : NOT_ENUM_INFO;
  }

  private static class NotEnumInfo extends EnumInfo {

    @Override
    public List enumConstantInfoList() {
      return ImmutableList.of();
    }

  }

}