NoViableAltException.cpp

/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id$
 */
 
#include "antlr/NoViableAltException.hpp"
#include "antlr/String.hpp"
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
 
ANTLR_USING_NAMESPACE(std)
 
NoViableAltException::NoViableAltException(RefAST t)
  : RecognitionException("NoViableAlt","<AST>",-1,-1),
    token(0), node(t)
{
}
 
NoViableAltException::NoViableAltException(
        RefToken t,
        const ANTLR_USE_NAMESPACE(std)string& fileName_
) : RecognitionException("NoViableAlt",fileName_,t->getLine(),t->getColumn()),
    token(t), node(nullASTptr)
{
}
 
ANTLR_USE_NAMESPACE(std)string NoViableAltException::getMessage() const
{
        if (token)
        {
                if( token->getType() == Token::EOF_TYPE )
                        return string("unexpected end of file");
                else if( token->getType() == Token::NULL_TREE_LOOKAHEAD )
                        return string("unexpected end of tree");
                else
                        return string("unexpected token: ")+token->getText();
        }
 
        // must a tree parser error if token==null
        if (!node)
                return "unexpected end of subtree";
 
        return string("unexpected AST node: ")+node->toString();
}
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif