com.arcadedb.query.sql.parser.Token Maven / Gradle / Ivy
/*
* Copyright © 2021-present Arcade Data Ltd ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-FileCopyrightText: 2021-present Arcade Data Ltd ([email protected])
* SPDX-License-Identifier: Apache-2.0
*/
/* Generated By:JavaCC: Do not edit this line. Token.java Version 5.0 */
/* JavaCCOptions:TOKEN_EXTENDS=,KEEP_LINE_COL=null,SUPPORT_USERTYPE_VISIBILITY_PUBLIC=true */
package com.arcadedb.query.sql.parser;
import java.io.*;
/**
* Describes the input token stream.
*/
public class Token implements 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;
/**
* 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 subType 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
*/
public Token() {
}
/**
* Constructs a new token for the specified Image.
*/
public Token(final int kind) {
this(kind, null);
}
/**
* Constructs a new token for the specified Image and Kind.
*/
public Token(final int kind, final String image) {
this.kind = kind;
this.image = 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 subType 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 subType 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(final int ofKind, final String image) {
return new Token(ofKind, image);
}
public static Token newToken(final int ofKind) {
return newToken(ofKind, null);
}
}
/* JavaCC - OriginalChecksum=593420b8b0dbf6291efe530eb0be6526 (do not edit this line) */
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