/*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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/* Generated By:JavaCC: Do not edit this line. Token.java Version 5.0 */
/* JavaCCOptions:TOKEN_EXTENDS=,KEEP_LINE_COL=null,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
package com.sun.tools.example.debug.expr;
Describes the input token stream.
/**
* Describes the input token stream.
*/
public class Token implements java.io.Serializable {
The version identifier for this Serializable class.
Increment only if the serialized form of the
class changes.
/**
* The version identifier for this Serializable class.
* Increment only if the <i>serialized</i> form of the
* class changes.
*/
private static final long serialVersionUID = 1L;
An integer that describes the kind of this token. This numbering
system is determined by JavaCCParser, and a table of these numbers is
stored in the file ...Constants.java.
/**
* An integer that describes the kind of this token. This numbering
* system is determined by JavaCCParser, and a table of these numbers is
* stored in the file ...Constants.java.
*/
public int kind;
The line number of the first character of this Token. /** The line number of the first character of this Token. */
public int beginLine;
The column number of the first character of this Token. /** The column number of the first character of this Token. */
public int beginColumn;
The line number of the last character of this Token. /** The line number of the last character of this Token. */
public int endLine;
The column number of the last character of this Token. /** The column number of the last character of this Token. */
public int endColumn;
The string image of the token.
/**
* The string image of the token.
*/
public String image;
A reference to the next regular (non-special) token from the input
stream. If this is the last token from the input stream, or if the
token manager has not read tokens beyond this one, this field is
set to null. This is true only if this token is also a regular
token. Otherwise, see below for a description of the contents of
this field.
/**
* A reference to the next regular (non-special) token from the input
* stream. If this is the last token from the input stream, or if the
* token manager has not read tokens beyond this one, this field is
* set to null. This is true only if this token is also a regular
* token. Otherwise, see below for a description of the contents of
* this field.
*/
public Token next;
This field is used to access special tokens that occur prior to this
token, but after the immediately preceding regular (non-special) token.
If there are no such special tokens, this field is set to null.
When there are more than one such special token, this field refers
to the last of these special tokens, which in turn refers to the next
previous special token through its specialToken field, and so on
until the first special token (whose specialToken field is null).
The next fields of special tokens refer to other special tokens that
immediately follow it (without an intervening regular token). If there
is no such token, this field is null.
/**
* This field is used to access special tokens that occur prior to this
* token, but after the immediately preceding regular (non-special) token.
* If there are no such special tokens, this field is set to null.
* When there are more than one such special token, this field refers
* to the last of these special tokens, which in turn refers to the next
* previous special token through its specialToken field, and so on
* until the first special token (whose specialToken field is null).
* The next fields of special tokens refer to other special tokens that
* immediately follow it (without an intervening regular token). If there
* is no such token, this field is null.
*/
public Token specialToken;
An optional attribute value of the Token.
Tokens which are not used as syntactic sugar will often contain
meaningful values that will be used later on by the compiler or
interpreter. This attribute value is often different from the image.
Any subclass of Token that actually wants to return a non-null value can
override this method as appropriate.
/**
* An optional attribute value of the Token.
* Tokens which are not used as syntactic sugar will often contain
* meaningful values that will be used later on by the compiler or
* interpreter. This attribute value is often different from the image.
* Any subclass of Token that actually wants to return a non-null value can
* override this method as appropriate.
*/
public Object getValue() {
return null;
}
No-argument constructor
/**
* No-argument constructor
*/
public Token() {}
Constructs a new token for the specified Image.
/**
* Constructs a new token for the specified Image.
*/
public Token(int kind)
{
this(kind, null);
}
Constructs a new token for the specified Image and Kind.
/**
* Constructs a new token for the specified Image and Kind.
*/
public Token(int kind, String image)
{
this.kind = kind;
this.image = image;
}
Returns the image.
/**
* Returns the image.
*/
public String toString()
{
return image;
}
Returns a new Token object, by default. However, if you want, you
can create and return subclass objects based on the value of ofKind.
Simply add the cases to the switch for all those special cases.
For example, if you have a subclass of Token called IDToken that
you want to create if ofKind is ID, simply add something like :
case MyParserConstants.ID : return new IDToken(ofKind, image);
to the following switch statement. Then you can cast matchedToken
variable to the appropriate type and use sit in your lexical actions.
/**
* Returns a new Token object, by default. However, if you want, you
* can create and return subclass objects based on the value of ofKind.
* Simply add the cases to the switch for all those special cases.
* For example, if you have a subclass of Token called IDToken that
* you want to create if ofKind is ID, simply add something like :
*
* case MyParserConstants.ID : return new IDToken(ofKind, image);
*
* to the following switch statement. Then you can cast matchedToken
* variable to the appropriate type and use sit in your lexical actions.
*/
public static Token newToken(int ofKind, String image)
{
switch(ofKind)
{
default : return new Token(ofKind, image);
}
}
public static Token newToken(int ofKind)
{
return newToken(ofKind, null);
}
}
/* JavaCC - OriginalChecksum=1f1783cae2d4cc94bc225889842dfa8b (do not edit this line) */