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/*
 * Copyright (C) 2008 Google Inc.
 *
 * 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 shaded.shaded.com.google.inject.spi;

import shaded.shaded.com.google.inject.Binding;

/**
 * No-op visitor for subclassing. All interface methods simply delegate to {@link
 * #visitOther(Element)}, returning its result.
 *
 * @param  any type to be returned by the visit method. Use {@link Void} with {@code return null}
 *     if no return type is needed.
 * @author [email protected] (Sam Berlin)
 * @since 2.0
 */
public abstract class DefaultElementVisitor implements ElementVisitor {

  /** Default visit implementation. Returns {@code null}. */
  protected V visitOther(Element element) {
    return null;
  }

  @Override
  public V visit(Message message) {
    return visitOther(message);
  }

  @Override
  public  V visit(Binding binding) {
    return visitOther(binding);
  }

  /*if[AOP]*/
  @Override
  public V visit(InterceptorBinding interceptorBinding) {
    return visitOther(interceptorBinding);
  }
  /*end[AOP]*/

  @Override
  public V visit(ScopeBinding scopeBinding) {
    return visitOther(scopeBinding);
  }

  @Override
  public V visit(TypeConverterBinding typeConverterBinding) {
    return visitOther(typeConverterBinding);
  }

  @Override
  public  V visit(ProviderLookup providerLookup) {
    return visitOther(providerLookup);
  }

  @Override
  public V visit(InjectionRequest injectionRequest) {
    return visitOther(injectionRequest);
  }

  @Override
  public V visit(StaticInjectionRequest staticInjectionRequest) {
    return visitOther(staticInjectionRequest);
  }

  @Override
  public V visit(PrivateElements privateElements) {
    return visitOther(privateElements);
  }

  @Override
  public  V visit(MembersInjectorLookup lookup) {
    return visitOther(lookup);
  }

  @Override
  public V visit(TypeListenerBinding binding) {
    return visitOther(binding);
  }

  @Override
  public V visit(ProvisionListenerBinding binding) {
    return visitOther(binding);
  }

  @Override
  public V visit(DisableCircularProxiesOption option) {
    return visitOther(option);
  }

  @Override
  public V visit(RequireExplicitBindingsOption option) {
    return visitOther(option);
  }

  @Override
  public V visit(RequireAtInjectOnConstructorsOption option) {
    return visitOther(option);
  }

  @Override
  public V visit(RequireExactBindingAnnotationsOption option) {
    return visitOther(option);
  }

  @Override
  public V visit(ModuleAnnotatedMethodScannerBinding binding) {
    return visitOther(binding);
  }
}