content: /*
   * Copyright 1999-2017 Alibaba Group.
   *
   * 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.alibaba.p3c.pmd.lang.java.rule.util;
  
  import java.util.List;
  import java.util.SortedMap;
  
  import net.sourceforge.pmd.lang.ast.Node;
  
  /**
   *
   * @author keriezhang
   * @date 2016/11/21
   *
   */
  public class NodeSortUtils {
  
      /**
       * add node to SortedMap with sequence to determine comment location
       * 
       * @param map sorted map
       * @param nodes nodes
       */
      public static void addNodesToSortedMap(SortedMap<Integer, Node> map, List<? extends Node> nodes) {
          for (Node node : nodes) {
              map.put(generateIndex(node), node);
          }
      }
  
      /**
       * set order according to node begin line and begin column
       * @param node node to sort
       * @return generated index
       */
      public static int generateIndex(Node node) {
          return (node.getBeginLine() << 16) + node.getBeginColumn();
      }
  }
  