1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.jexl3.parser;
18
19 import org.apache.commons.jexl3.internal.Debugger;
20
21 /**
22 * An array literal.
23 */
24 public final class ASTArrayLiteral extends JexlNode {
25 /**
26 *
27 */
28 private static final long serialVersionUID = 1L;
29 /** Whether this array is constant or not. */
30 private boolean constant = false;
31
32 ASTArrayLiteral(final int id) {
33 super(id);
34 }
35
36 ASTArrayLiteral(final Parser p, final int id) {
37 super(p, id);
38 }
39
40 @Override
41 public String toString() {
42 final Debugger dbg = new Debugger();
43 return dbg.data(this);
44 }
45
46 @Override
47 protected boolean isConstant(final boolean literal) {
48 return constant;
49 }
50
51 @Override
52 public void jjtClose() {
53 constant = true;
54 for (int c = 0; c < jjtGetNumChildren() && constant; ++c) {
55 final JexlNode child = jjtGetChild(c);
56 if (child instanceof ASTReference) {
57 constant = child.isConstant(true);
58 } else if (!child.isConstant()) {
59 constant = false;
60 }
61 }
62 }
63
64 @Override
65 public Object jjtAccept(final ParserVisitor visitor, final Object data) {
66 return visitor.visit(this, data);
67 }
68 }