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/*
 * Copyright 2013 Nicolas Morel
 *
 * 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 org.dominokit.jackson.deser;

import org.dominokit.jackson.JsonDeserializationContext;
import org.dominokit.jackson.JsonDeserializer;
import org.dominokit.jackson.JsonDeserializerParameters;
import org.dominokit.jackson.stream.JsonReader;

/**
 * Default {@link org.dominokit.jackson.JsonDeserializer} implementation for {@link java.lang.Void}.
 */
public class VoidJsonDeserializer extends JsonDeserializer {

  private static final VoidJsonDeserializer INSTANCE = new VoidJsonDeserializer();

  /**
   * getInstance
   *
   * @return an instance of {@link org.dominokit.jackson.deser.VoidJsonDeserializer}
   */
  public static VoidJsonDeserializer getInstance() {
    return INSTANCE;
  }

  private VoidJsonDeserializer() {}

  /** {@inheritDoc} */
  @Override
  public Void doDeserialize(
      JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
    // we should never be here, the null value is already handled and it's the only possible value
    // for Void
    reader.skipValue();
    return null;
  }
}