| /* |
| * 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 |
| * |
| * 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 freemarker.core; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| /** |
| * Used as the return value of {@link TemplateElement#accept(Environment)} when the invoked element has nested elements |
| * to invoke. It would be more natural to invoke child elements before returning from |
| * {@link TemplateElement#accept(Environment)}, however, if there's nothing to do after the child elements were invoked, |
| * that would mean wasting stack space. |
| * |
| * @since 2.3.24 |
| */ |
| class TemplateElementsToVisit { |
| |
| private final Collection<TemplateElement> templateElements; |
| |
| TemplateElementsToVisit(Collection<TemplateElement> templateElements) { |
| this.templateElements = null != templateElements ? templateElements : Collections.<TemplateElement> emptyList(); |
| } |
| |
| TemplateElementsToVisit(TemplateElement nestedBlock) { |
| this(Collections.singleton(nestedBlock)); |
| } |
| |
| Collection<TemplateElement> getTemplateElements() { |
| return templateElements; |
| } |
| |
| } |