org.drools.mvel.parser.Token Maven / Gradle / Ivy
/* Generated by: ParserGeneratorCC: Do not edit this line. Token.java Version 1.1 */
/* ParserGeneratorCCOptions:TOKEN_EXTENDS=TokenBase,KEEP_LINE_COLUMN=true,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
* Copyright 2019 Red Hat, Inc. and/or its affiliates.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser 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 Lesser General Public License for more details.
*
* Modified by Red Hat, Inc.
*/
package org.drools.mvel.parser;
/**
* Describes the input token stream.
*/
public class Token
extends TokenBase
implements java.io.Serializable {
/**
* The version identifier for this Serializable class.
* Increment only if the serialized 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.
*/
public int kind;
/** The line number of the first character of this Token. */
public int beginLine;
/** The column number of the first character of this Token. */
public int beginColumn;
/** The line number of the last character of this Token. */
public int endLine;
/** The column number of the last character of this Token. */
public int endColumn;
/**
* 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.
*/
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.
*/
public Token specialToken;
/**
* No-argument constructor
*/
public Token() {}
/**
* Constructs a new token for the specified Image.
*/
public Token(final int nKind)
{
this(nKind, null);
}
/**
* Constructs a new token for the specified Image and Kind.
*/
public Token(final int nKind, final String sImage)
{
this.kind = nKind;
this.image = sImage;
}
/**
* 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;
}
/**
* Returns the image.
*/
@Override
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.
*/
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);
}
}
/* ParserGeneratorCC - OriginalChecksum=4cb7cb3d4932f639d5e2b299cec8f148 (do not edit this line) */