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