Package org.antlr.tool

Source Code of org.antlr.tool.GrammarSemanticsMessage

/*
* [The "BSD license"]
*  Copyright (c) 2010 Terence Parr
*  All rights reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*  1. Redistributions of source code must retain the above copyright
*      notice, this list of conditions and the following disclaimer.
*  2. Redistributions in binary form must reproduce the above copyright
*      notice, this list of conditions and the following disclaimer in the
*      documentation and/or other materials provided with the distribution.
*  3. The name of the author may not be used to endorse or promote products
*      derived from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
*  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
*  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
*  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
*  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
*  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.tool;

import org.antlr.runtime.Token;
import org.stringtemplate.v4.ST;

/** A problem with the symbols and/or meaning of a grammar such as rule
*  redefinition.
*/
public class GrammarSemanticsMessage extends Message {
  public Grammar g;
  /** Most of the time, we'll have a token such as an undefined rule ref
   *  and so this will be set.
   */
  public Token offendingToken;

  public GrammarSemanticsMessage(int msgID,
              Grammar g,
              Token offendingToken)
  {
    this(msgID,g,offendingToken,null,null);
  }

  public GrammarSemanticsMessage(int msgID,
              Grammar g,
              Token offendingToken,
              Object arg)
  {
    this(msgID,g,offendingToken,arg,null);
  }

  public GrammarSemanticsMessage(int msgID,
              Grammar g,
              Token offendingToken,
              Object arg,
              Object arg2)
  {
    super(msgID,arg,arg2);
    this.g = g;
    this.offendingToken = offendingToken;
  }

  @Override
  public String toString() {
    line = 0;
    column = 0;
    if ( offendingToken!=null ) {
      line = offendingToken.getLine();
      column = offendingToken.getCharPositionInLine();
    }
    if ( g!=null ) {
      file = g.getFileName();
    }
    ST st = getMessageTemplate();
    if ( arg!=null ) {
      st.add("arg", arg);
    }
    if ( arg2!=null ) {
      st.add("arg2", arg2);
    }
    return super.toString(st);
  }
}
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