1/* ANTLR Translator Generator 2 * Project led by Terence Parr at http://www.jGuru.com 3 * Software rights: http://www.antlr.org/license.html 4 * 5 * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/src/NoViableAltException.cpp#2 $ 6 */ 7 8#include "antlr/NoViableAltException.hpp" 9#include "antlr/String.hpp" 10 11#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE 12namespace antlr { 13#endif 14 15ANTLR_USING_NAMESPACE(std) 16 17NoViableAltException::NoViableAltException(RefAST t) 18 : RecognitionException("NoViableAlt","<AST>",-1,-1), 19 token(0), node(t) 20{ 21} 22 23NoViableAltException::NoViableAltException( 24 RefToken t, 25 const ANTLR_USE_NAMESPACE(std)string& fileName_ 26) : RecognitionException("NoViableAlt",fileName_,t->getLine(),t->getColumn()), 27 token(t), node(nullASTptr) 28{ 29} 30 31ANTLR_USE_NAMESPACE(std)string NoViableAltException::getMessage() const 32{ 33 if (token) 34 { 35 if( token->getType() == Token::EOF_TYPE ) 36 return string("unexpected end of file"); 37 else if( token->getType() == Token::NULL_TREE_LOOKAHEAD ) 38 return string("unexpected end of tree"); 39 else 40 return string("unexpected token: ")+token->getText(); 41 } 42 43 // must a tree parser error if token==null 44 if (!node) 45 return "unexpected end of subtree"; 46 47 return string("unexpected AST node: ")+node->toString(); 48} 49 50#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE 51} 52#endif 53