source: proiecte/HadoopJUnit/hadoop-0.20.1/src/core/org/apache/hadoop/record/compiler/generated/Token.java @ 120

Last change on this file since 120 was 120, checked in by (none), 14 years ago

Added the mail files for the Hadoop JUNit Project

  • Property svn:executable set to *
File size: 3.4 KB
Line 
1/* Generated By:JavaCC: Do not edit this line. Token.java Version 3.0 */
2/**
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements.  See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership.  The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License.  You may obtain a copy of the License at
10 *
11 *     http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20package org.apache.hadoop.record.compiler.generated;
21
22/**
23 * Describes the input token stream.
24 */
25
26public class Token {
27
28  /**
29   * An integer that describes the kind of this token.  This numbering
30   * system is determined by JavaCCParser, and a table of these numbers is
31   * stored in the file ...Constants.java.
32   */
33  public int kind;
34
35  /**
36   * beginLine and beginColumn describe the position of the first character
37   * of this token; endLine and endColumn describe the position of the
38   * last character of this token.
39   */
40  public int beginLine, beginColumn, endLine, endColumn;
41
42  /**
43   * The string image of the token.
44   */
45  public String image;
46
47  /**
48   * A reference to the next regular (non-special) token from the input
49   * stream.  If this is the last token from the input stream, or if the
50   * token manager has not read tokens beyond this one, this field is
51   * set to null.  This is true only if this token is also a regular
52   * token.  Otherwise, see below for a description of the contents of
53   * this field.
54   */
55  public Token next;
56
57  /**
58   * This field is used to access special tokens that occur prior to this
59   * token, but after the immediately preceding regular (non-special) token.
60   * If there are no such special tokens, this field is set to null.
61   * When there are more than one such special token, this field refers
62   * to the last of these special tokens, which in turn refers to the next
63   * previous special token through its specialToken field, and so on
64   * until the first special token (whose specialToken field is null).
65   * The next fields of special tokens refer to other special tokens that
66   * immediately follow it (without an intervening regular token).  If there
67   * is no such token, this field is null.
68   */
69  public Token specialToken;
70
71  /**
72   * Returns the image.
73   */
74  public String toString()
75  {
76    return image;
77  }
78
79  /**
80   * Returns a new Token object, by default. However, if you want, you
81   * can create and return subclass objects based on the value of ofKind.
82   * Simply add the cases to the switch for all those special cases.
83   * For example, if you have a subclass of Token called IDToken that
84   * you want to create if ofKind is ID, simlpy add something like :
85   *
86   *    case MyParserConstants.ID : return new IDToken();
87   *
88   * to the following switch statement. Then you can cast matchedToken
89   * variable to the appropriate type and use it in your lexical actions.
90   */
91  public static final Token newToken(int ofKind)
92  {
93    switch(ofKind)
94      {
95      default : return new Token();
96      }
97  }
98
99}
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