https://github.com/google/guice/guice: Guice is a lightweight dependency injection framework for Java 6 and above (Google, Inc.) 
/*
 * 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 com.google.inject.internal;

import com.google.common.collect.Lists;
import com.google.inject.spi.PrivateElements;
import java.util.List;


Handles Binder.newPrivateBinder() elements. 
Author:jessewilson@google.com (Jesse Wilson)
/**
 * Handles {@code Binder.newPrivateBinder()} elements.
 *
 * @author jessewilson@google.com (Jesse Wilson)
 */
final class PrivateElementProcessor extends AbstractProcessor {

  private final List<InjectorShell.Builder> injectorShellBuilders = Lists.newArrayList();

  PrivateElementProcessor(Errors errors) {
    super(errors);
  }

  @Override
  public Boolean visit(PrivateElements privateElements) {
    InjectorShell.Builder builder =
        new InjectorShell.Builder().parent(injector).privateElements(privateElements);
    injectorShellBuilders.add(builder);
    return true;
  }

  public List<InjectorShell.Builder> getInjectorShellBuilders() {
    return injectorShellBuilders;
  }
}