persistence.antlr.NoViableAltException Maven / Gradle / Ivy
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package persistence.antlr;
/* ANTLR Translator Generator
* Project led by Terence Parr at http://www.jGuru.com
* Software rights: http://www.antlr.org/license.html
*
* $Id: NoViableAltException.java,v 1.1 2006/02/08 21:30:54 tware Exp $
*/
import persistence.antlr.collections.AST;
public class NoViableAltException extends RecognitionException {
public Token token;
public AST node; // handles parsing and treeparsing
public NoViableAltException(AST t) {
super("NoViableAlt", "", t.getLine(), t.getColumn());
node = t;
}
public NoViableAltException(Token t, String fileName_) {
super("NoViableAlt", fileName_, t.getLine(), t.getColumn());
token = t;
}
/**
* Returns a clean error message (no line number/column information)
*/
public String getMessage() {
if (token != null) {
return "unexpected token: " + token.getText();
}
// must a tree parser error if token==null
if (node == TreeParser.ASTNULL) {
return "unexpected end of subtree";
}
return "unexpected AST node: " + node.toString();
}
}