01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * If you wish your version of this file to be governed by only the CDDL
25: * or only the GPL Version 2, indicate your decision by adding
26: * "[Contributor] elects to include this software in this distribution
27: * under the [CDDL or GPL Version 2] license." If you do not indicate a
28: * single choice of license, a recipient has the option to distribute
29: * your version of this file under either the CDDL, the GPL Version 2 or
30: * to extend the choice of license to its licensees as provided above.
31: * However, if you add GPL Version 2 code and therefore, elected the GPL
32: * Version 2 license, then the option applies only if the new code is
33: * made subject to such option by the copyright holder.
34: *
35: * Contributor(s):
36: *
37: * Portions Copyrighted 2008 Sun Microsystems, Inc.
38: */
39: package org.netbeans.modules.php.editor.parser.astnodes;
40:
41: /**
42: * Represents an unary operation expression
43: * <pre>e.g.<pre> +$a,
44: * -3,
45: * -foo(),
46: * +-+-$a
47: */
48: public class UnaryOperation extends Expression {
49:
50: public enum Operator {
51: PLUS, // '+'
52: MINUS, // '-'
53: NOT, // '!'
54: TILDA
55: // '~'
56: }
57:
58: private Expression expression;
59: private UnaryOperation.Operator operator;
60:
61: public UnaryOperation(int start, int end, Expression expr,
62: UnaryOperation.Operator operator) {
63: super (start, end);
64:
65: if (expr == null) {
66: throw new IllegalArgumentException();
67: }
68: this .expression = expr;
69: this .operator = operator;
70: }
71:
72: /**
73: * Returns the expression of this unary operation.
74: *
75: * @return the expression node
76: */
77: public Expression getExpression() {
78: return expression;
79: }
80:
81: /**
82: * the operation type - one of {@link #OP_MINUS}, {@link #OP_NOT},
83: * {@link #OP_PLUS}, {@link #OP_TILDA}
84: * @return operation type
85: */
86: public UnaryOperation.Operator getOperator() {
87: return operator;
88: }
89:
90: @Override
91: public void accept(Visitor visitor) {
92: visitor.visit(this);
93: }
94: }
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