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Java > Open Source Codes > com > google > gwt > dev > jjs > ast > JUnaryOperator


1 /*
2  * Copyright 2007 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 package com.google.gwt.dev.jjs.ast;
17
18 /**
19  * An enumeration of the available unary operators.
20  */
21 public class JUnaryOperator {
22
23   public static final JUnaryOperator INC = new JUnaryOperator("++");
24   public static final JUnaryOperator DEC = new JUnaryOperator("--");
25   public static final JUnaryOperator NEG = new JUnaryOperator("-");
26   public static final JUnaryOperator NOT = new JUnaryOperator("!");
27   public static final JUnaryOperator BIT_NOT = new JUnaryOperator("~");
28
29   private final char[] symbol;
30
31   private JUnaryOperator(String JavaDoc symbol) {
32     this.symbol = symbol.toCharArray();
33   }
34
35   public char[] getSymbol() {
36     return symbol;
37   }
38
39   public boolean isModifying() {
40     return this == INC || this == DEC;
41   }
42
43   public String JavaDoc toString() {
44     return new String JavaDoc(getSymbol());
45   }
46
47 }
48
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