| /** |
| * 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.weex.el.parse; |
| |
| import com.alibaba.fastjson.JSONArray; |
| |
| import java.util.List; |
| |
| /** |
| * block, has more than one tokens, but only first will be execute. |
| * Created by jianbai.gbj on 2017/8/28. |
| */ |
| class Block extends Token { |
| private List<Token> tokens; |
| public Block(List<Token> tokens, int type) { |
| super("", type); |
| this.tokens = tokens; |
| } |
| |
| @Override |
| public Object execute(Object context){ |
| if(getType() == TYPE_ARRAY){ |
| if(tokens == null || tokens.size() == 0){ |
| return new JSONArray(4); |
| } |
| JSONArray arrayList = new JSONArray(tokens.size()); |
| for(int i=0; i<tokens.size(); i++){ |
| Token token = tokens.get(i); |
| if(token == null){ |
| arrayList.add(null); |
| }else{ |
| arrayList.add(token.execute(context)); |
| } |
| } |
| return arrayList; |
| } |
| if(tokens == null || tokens.size() == 0){ |
| return null; |
| } |
| Token token = tokens.get(0); |
| return token.execute(context); |
| } |
| |
| @Override |
| public String toString() { |
| if(getType() == TYPE_ARRAY){ |
| return "" + tokens + ""; |
| }else { |
| if(tokens != null && tokens.size() == 1){ |
| return "{" + tokens.get(0) + '}'; |
| } |
| return "{" + tokens + '}'; |
| } |
| } |
| } |