| /* |
| * 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 org.apache.freemarker.core; |
| |
| import org.apache.freemarker.core.ASTDirList.IterationContext; |
| import org.apache.freemarker.core.model.TemplateModel; |
| |
| abstract class BuiltInForNestedContentParameter extends SpecialBuiltIn { |
| |
| private String nestedContentParamName; |
| |
| void bindToNestedContentParameter(String nestedContentParamName) { |
| this.nestedContentParamName = nestedContentParamName; |
| } |
| |
| @Override |
| TemplateModel _eval(Environment env) throws TemplateException { |
| IterationContext iterCtx = env.findEnclosingIterationContextWithVisibleVariable(nestedContentParamName); |
| if (iterCtx == null) { |
| // The parser should prevent this situation |
| throw new TemplateException( |
| this, env, |
| "There's no iteration in context that uses the nested content parameter ", |
| new _DelayedJQuote( nestedContentParamName), "."); |
| } |
| |
| return calculateResult(iterCtx, env); |
| } |
| |
| abstract TemplateModel calculateResult(IterationContext iterCtx, Environment env) throws TemplateException; |
| |
| } |