01: /* Generated By:JavaCC: Do not edit this line. Token.java Version 3.0 */
02:
03: /**************************************************************************************
04: * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved. *
05: * http://aspectwerkz.codehaus.org *
06: * ---------------------------------------------------------------------------------- *
07: * The software in this package is published under the terms of the LGPL license *
08: * a copy of which has been included with this distribution in the license.txt file. *
09: **************************************************************************************/package org.codehaus.aspectwerkz.annotation.expression.ast;
10:
11: /**
12: * Describes the input token stream.
13: */
14: public class Token {
15: /**
16: * An integer that describes the kind of this token. This numbering system is determined by JavaCCParser, and a
17: * table of these numbers is stored in the file ...Constants.java.
18: */
19: public int kind;
20:
21: /**
22: * beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn
23: * describe the position of the last character of this token.
24: */
25: public int beginLine;
26:
27: /**
28: * beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn
29: * describe the position of the last character of this token.
30: */
31: public int beginColumn;
32:
33: /**
34: * beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn
35: * describe the position of the last character of this token.
36: */
37: public int endLine;
38:
39: /**
40: * beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn
41: * describe the position of the last character of this token.
42: */
43: public int endColumn;
44:
45: /**
46: * The string image of the token.
47: */
48: public String image;
49:
50: /**
51: * A reference to the next regular (non-special) token from the input stream. If this is the last token from the
52: * input stream, or if the token manager has not read tokens beyond this one, this field is set to null. This is
53: * true only if this token is also a regular token. Otherwise, see below for a description of the contents of this
54: * field.
55: */
56: public Token next;
57:
58: /**
59: * This field is used to access special tokens that occur prior to this token, but after the immediately preceding
60: * regular (non-special) token. If there are no such special tokens, this field is set to null. When there are more
61: * than one such special token, this field refers to the last of these special tokens, which in turn refers to the
62: * next previous special token through its specialToken field, and so on until the first special token (whose
63: * specialToken field is null). The next fields of special tokens refer to other special tokens that immediately
64: * follow it (without an intervening regular token). If there is no such token, this field is null.
65: */
66: public Token specialToken;
67:
68: /**
69: * Returns the image.
70: */
71: public String toString() {
72: return image;
73: }
74:
75: /**
76: * Returns a new Token object, by default. However, if you want, you can create and return subclass objects based on
77: * the value of ofKind. Simply add the cases to the switch for all those special cases. For example, if you have a
78: * subclass of Token called IDToken that you want to create if ofKind is ID, simlpy add something like : <p/>case
79: * MyParserConstants.ID : return new IDToken(); <p/>to the following switch statement. Then you can cast
80: * matchedToken variable to the appropriate type and use it in your lexical actions.
81: */
82: public static final Token newToken(int ofKind) {
83: switch (ofKind) {
84: default:
85: return new Token();
86: }
87: }
88: }
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