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