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org.apache.commons.jexl.parser.ASTUnaryMinusNode |
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1 | /* |
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2 | * Copyright 2002-2006 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.jexl.parser; |
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17 | ||
18 | import java.math.BigDecimal; |
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19 | import java.math.BigInteger; |
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20 | ||
21 | import org.apache.commons.jexl.JexlContext; |
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22 | ||
23 | /** |
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24 | * - (unary minus). |
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25 | * |
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26 | * @author <a href="mailto:mhw@kremvax.net">Mark H. Wilkinson</a> |
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27 | * @version $Id: ASTUnaryMinusNode.java 398325 2006-04-30 12:34:29Z dion $ |
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28 | */ |
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29 | public class ASTUnaryMinusNode extends SimpleNode { |
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30 | /** |
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31 | * Create the node given an id. |
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32 | * |
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33 | * @param id node id. |
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34 | */ |
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35 | public ASTUnaryMinusNode(int id) { |
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36 | 0 | super(id); |
37 | 0 | } |
38 | ||
39 | /** |
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40 | * Create a node with the given parser and id. |
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41 | * |
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42 | * @param p a parser. |
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43 | * @param id node id. |
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44 | */ |
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45 | public ASTUnaryMinusNode(Parser p, int id) { |
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46 | 14 | super(p, id); |
47 | 14 | } |
48 | ||
49 | /** {@inheritDoc} */ |
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50 | public Object jjtAccept(ParserVisitor visitor, Object data) { |
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51 | 0 | return visitor.visit(this, data); |
52 | } |
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53 | ||
54 | /** {@inheritDoc} */ |
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55 | public Object value(JexlContext jc) throws Exception { |
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56 | 14 | Object val = ((SimpleNode) jjtGetChild(0)).value(jc); |
57 | ||
58 | 14 | if (val instanceof Byte) { |
59 | 1 | byte valueAsByte = ((Byte) val).byteValue(); |
60 | 1 | return new Byte((byte) -valueAsByte); |
61 | 13 | } else if (val instanceof Short) { |
62 | 1 | short valueAsShort = ((Short) val).class="keyword">shortValue(); |
63 | 1 | return new Short((short) -valueAsShort); |
64 | 12 | } else if (val instanceof Integer) { |
65 | 6 | int valueAsInt = ((Integer) val).class="keyword">intValue(); |
66 | 6 | return new Integer(-valueAsInt); |
67 | 6 | } else if (val instanceof Long) { |
68 | 1 | long valueAsLong = ((Long) val).class="keyword">longValue(); |
69 | 1 | return new Long(-valueAsLong); |
70 | 5 | } else if (val instanceof Float) { |
71 | 2 | float valueAsFloat = ((Float) val).class="keyword">floatValue(); |
72 | 2 | return new Float(-valueAsFloat); |
73 | 3 | } else if (val instanceof Double) { |
74 | 1 | double valueAsDouble = ((Double) val).class="keyword">doubleValue(); |
75 | 1 | return new Double(-valueAsDouble); |
76 | 2 | } else if (val instanceof BigDecimal) { |
77 | 1 | BigDecimal valueAsBigD = (BigDecimal) val; |
78 | 1 | return valueAsBigD.negate(); |
79 | 1 | } else if (val instanceof BigInteger) { |
80 | 1 | BigInteger valueAsBigI = (BigInteger) val; |
81 | 1 | return valueAsBigI.negate(); |
82 | } |
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83 | 0 | throw new Exception("expression not a number"); |
84 | } |
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85 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |