content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.apache.atlas.groovy;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  
  /**
   * Represents a semi-colon delimited list of Groovy expressions.
   */
  public class StatementListExpression extends AbstractGroovyExpression {
      private final List<GroovyExpression> stmts = new ArrayList<>();
  
      public StatementListExpression() {
      }
  
      /**
       * @param newChildren
       */
      public StatementListExpression(List<GroovyExpression> newChildren) {
          stmts.addAll(newChildren);
      }
  
      public void addStatement(GroovyExpression expr) {
          if (expr instanceof StatementListExpression) {
              stmts.addAll(((StatementListExpression) expr).getStatements());
          } else {
              stmts.add(expr);
          }
      }
  
      public void addStatements(List<GroovyExpression> exprs) {
          for (GroovyExpression expr : exprs) {
              addStatement(expr);
          }
      }
  
      @Override
      public void generateGroovy(GroovyGenerationContext context) {
          for (Iterator<GroovyExpression> stmtIt = stmts.iterator(); stmtIt.hasNext(); ) {
              GroovyExpression stmt = stmtIt.next();
  
              stmt.generateGroovy(context);
  
              if (stmtIt.hasNext()) {
                  context.append(";");
              }
          }
      }
  
      @Override
      public List<GroovyExpression> getChildren() {
          return Collections.unmodifiableList(stmts);
      }
  
      @Override
      public GroovyExpression copy(List<GroovyExpression> newChildren) {
          return new StatementListExpression(newChildren);
      }
  
      public List<GroovyExpression> getStatements() {
          return stmts;
      }
  
      @Override
      public TraversalStepType getType() {
          return TraversalStepType.NONE;
      }
  
      /**
       * @param index
       * @param newExpr
       */
      public void replaceStatement(int index, GroovyExpression newExpr) {
          stmts.set(index, newExpr);
      }
  }
  