01: /*
02: * Copyright 2007 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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 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 toString() {
44: return new String(getSymbol());
45: }
46:
47: }
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