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namespace antlr3 {
template<class ImplTraits, class StreamType>
ANTLR_ExceptionBase<ImplTraits, StreamType>::ANTLR_ExceptionBase(const StringType& message)
:m_message(message)
,m_input(NULL)
{
m_index = 0;
m_token = NULL;
m_expecting = 0;
m_expectingSet = NULL;
m_node = NULL;
m_c = 0;
m_line = 0;
m_charPositionInLine = 0;
m_decisionNum = 0;
m_state = 0;
m_nextException = NULL;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::StringType& ANTLR_ExceptionBase<ImplTraits, StreamType>::get_message()
{
return m_message;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::StringType& ANTLR_ExceptionBase<ImplTraits, StreamType>::get_streamName()
{
return m_streamName;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_MARKER ANTLR_ExceptionBase<ImplTraits, StreamType>::get_index() const
{
return m_index;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE const typename ANTLR_ExceptionBase<ImplTraits, StreamType>::TokenType* ANTLR_ExceptionBase<ImplTraits, StreamType>::get_token() const
{
return m_token;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::ExceptionBaseType* ANTLR_ExceptionBase<ImplTraits, StreamType>::get_nextException() const
{
return m_nextException;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_UINT32 ANTLR_ExceptionBase<ImplTraits, StreamType>::get_expecting() const
{
return m_expecting;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::BitsetListType* ANTLR_ExceptionBase<ImplTraits, StreamType>::get_expectingSet() const
{
return m_expectingSet;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::TokenType* ANTLR_ExceptionBase<ImplTraits, StreamType>::get_node() const
{
return m_node;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_UCHAR ANTLR_ExceptionBase<ImplTraits, StreamType>::get_c() const
{
return m_c;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_UINT32 ANTLR_ExceptionBase<ImplTraits, StreamType>::get_line() const
{
return m_line;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_INT32 ANTLR_ExceptionBase<ImplTraits, StreamType>::get_charPositionInLine() const
{
return m_charPositionInLine;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_UINT32 ANTLR_ExceptionBase<ImplTraits, StreamType>::get_decisionNum() const
{
return m_decisionNum;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE ANTLR_UINT32 ANTLR_ExceptionBase<ImplTraits, StreamType>::get_state() const
{
return m_state;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::StringType& ANTLR_ExceptionBase<ImplTraits, StreamType>::get_ruleName()
{
return m_ruleName;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE typename ANTLR_ExceptionBase<ImplTraits, StreamType>::IntStreamType* ANTLR_ExceptionBase<ImplTraits, StreamType>::get_input() const
{
return m_input;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_message( const StringType& message )
{
m_message = message;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_streamName( const StringType& streamName )
{
m_streamName = streamName;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_index( ANTLR_MARKER index )
{
m_index = index;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_token( const TokenType* token )
{
if (m_token)
delete m_token;
m_token = token;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_nextException( ExceptionBaseType* nextException )
{
m_nextException = nextException;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_expecting( ANTLR_UINT32 expecting )
{
m_expecting = expecting;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_expectingSet( BitsetListType* expectingSet )
{
m_expectingSet = expectingSet;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_node( TokenType* node )
{
m_node = node;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_c( ANTLR_UCHAR c )
{
m_c = c;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_line( ANTLR_UINT32 line )
{
m_line = line;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_charPositionInLine( ANTLR_INT32 charPositionInLine )
{
m_charPositionInLine = charPositionInLine;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_decisionNum( ANTLR_UINT32 decisionNum )
{
m_decisionNum = decisionNum;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_state( ANTLR_UINT32 state )
{
m_state = state;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_ruleName( const StringType& ruleName )
{
m_ruleName = ruleName;
}
template<class ImplTraits, class StreamType>
ANTLR_INLINE void ANTLR_ExceptionBase<ImplTraits, StreamType>::set_input( IntStreamType* input )
{
m_input = input;
}
template<class ImplTraits, ExceptionType Ex, class StreamType>
template<typename BaseRecognizerType>
ANTLR_Exception<ImplTraits, Ex, StreamType>::ANTLR_Exception(BaseRecognizerType* recognizer, const StringType& message)
:BaseType( message )
{
recognizer->get_super()->fillExceptionData( this );
BaseType::m_input = recognizer->get_super()->get_istream();
BaseType::m_nextException = recognizer->get_state()->get_exception(); /* So we don't leak the memory */
recognizer->get_state()->set_exception(this);
recognizer->get_state()->set_error( true ); /* Exception is outstanding */
}
template<class ImplTraits, ExceptionType Ex, class StreamType>
ANTLR_UINT32 ANTLR_Exception<ImplTraits, Ex, StreamType>::getType() const
{
return static_cast<ANTLR_UINT32>(Ex);
}
template<class ImplTraits, ExceptionType Ex, class StreamType>
void ANTLR_Exception<ImplTraits, Ex, StreamType>::print() const
{
/* Ensure valid pointer
*/
/* Number if no message, else the message
*/
if ( BaseType::m_message.empty() )
{
fprintf(stderr, "ANTLR3_EXCEPTION number %d (%08X).\n", Ex, Ex);
}
else
{
fprintf(stderr, "ANTLR3_EXCEPTION: %s\n", BaseType::m_message.c_str() );
}
}
template<class ImplTraits, ExceptionType Ex, class StreamType>
typename ANTLR_Exception<ImplTraits, Ex, StreamType>::StringType
ANTLR_Exception<ImplTraits, Ex, StreamType>::getName() const
{
const char* exArray[] = {
"org.antlr.runtime.RecognitionException"
, "org.antlr.runtime.MismatchedTokenException"
, "org.antlr.runtime.NoViableAltException"
, "org.antlr.runtime.MismatchedSetException"
, "org.antlr.runtime.EarlyExitException"
, "org.antlr.runtime.FailedPredicateException"
, "org.antlr.runtime.MismatchedTreeNodeException"
, "org.antlr.runtime.tree.RewriteEarlyExitException"
, "org.antlr.runtime.UnwantedTokenException"
, "org.antlr.runtime.MissingTokenException"
};
return StringType(exArray[Ex]);
}
template<class ImplTraits, ExceptionType Ex, class StreamType>
void ANTLR_Exception<ImplTraits, Ex, StreamType>::displayRecognitionError( ANTLR_UINT8** tokenNames,
StringStreamType& str_stream ) const
{
switch( Ex )
{
case RECOGNITION_EXCEPTION:
// Indicates that the recognizer received a token
// in the input that was not predicted. This is the basic exception type
// from which all others are derived. So we assume it was a syntax error.
// You may get this if there are not more tokens and more are needed
// to complete a parse for instance.
//
str_stream << " : syntax error...\n";
break;
case UNWANTED_TOKEN_EXCEPTION:
// Indicates that the recognizer was fed a token which seesm to be
// spurious input. We can detect this when the token that follows
// this unwanted token would normally be part of the syntactically
// correct stream. Then we can see that the token we are looking at
// is just something that should not be there and throw this exception.
//
if (tokenNames == NULL)
{
str_stream << " : Extraneous input...";
}
else
{
if ( BaseType::m_expecting == ImplTraits::CommonTokenType::TOKEN_EOF)
{
str_stream << " : Extraneous input - expected <EOF>\n";
}
else
{
str_stream << " : Extraneous input - expected "
<< tokenNames[ BaseType::m_expecting] << " ...\n";
}
}
break;
case MISSING_TOKEN_EXCEPTION:
// Indicates that the recognizer detected that the token we just
// hit would be valid syntactically if preceeded by a particular
// token. Perhaps a missing ';' at line end or a missing ',' in an
// expression list, and such like.
//
if (tokenNames == NULL)
{
str_stream << " : Missing token ("
<< BaseType::m_expecting << ")...\n";
}
else
{
if ( BaseType::m_expecting == ImplTraits::CommonTokenType::TOKEN_EOF )
{
str_stream <<" : Missing <EOF>\n";
}
else
{
str_stream << " : Missing " << tokenNames[BaseType::m_expecting] <<" \n";
}
}
break;
case NO_VIABLE_ALT_EXCEPTION:
// We could not pick any alt decision from the input given
// so god knows what happened - however when you examine your grammar,
// you should. It means that at the point where the current token occurred
// that the DFA indicates nowhere to go from here.
//
str_stream << " : cannot match to any predicted input...\n";
break;
case MISMATCHED_SET_EXCEPTION:
{
ANTLR_UINT32 count;
ANTLR_UINT32 bit;
ANTLR_UINT32 size;
ANTLR_UINT32 numbits;
// This means we were able to deal with one of a set of
// possible tokens at this point, but we did not see any
// member of that set.
//
str_stream << " : unexpected input :";
// What tokens could we have accepted at this point in the
// parse?
//
count = 0;
size = 0;
if (BaseType::m_expectingSet != NULL) {
std::unique_ptr<BitsetType> errBits(BaseType::m_expectingSet->bitsetLoad());
numbits = errBits->numBits();
size = errBits->size();
}
if (size > 0)
{
// However many tokens we could have dealt with here, it is usually
// not useful to print ALL of the set here. I arbitrarily chose 8
// here, but you should do whatever makes sense for you of course.
// No token number 0, so look for bit 1 and on.
//
str_stream << " expected one of : ";
for (bit = 1; bit < numbits && count < 8 && count < size; bit++)
{
// TODO: This doesn;t look right - should be asking if the bit is set!!
//
if (tokenNames[bit])
{
str_stream << ( count > 0 ? ", " : "" )
<< tokenNames[bit];
count++;
}
}
str_stream << "\n";
}
else
{
str_stream << " nothing is expected here\n";
}
}
break;
case EARLY_EXIT_EXCEPTION:
str_stream << " : missing elements...\n";
break;
default:
str_stream << " : syntax not recognized...\n";
break;
}
}
template<class ImplTraits, class StreamType>
ANTLR_ExceptionBase<ImplTraits,StreamType>::~ANTLR_ExceptionBase()
{
ANTLR_ExceptionBase<ImplTraits,StreamType>* next;
ANTLR_ExceptionBase<ImplTraits,StreamType>* ex = m_nextException;
/* Ensure valid pointer
*/
while (ex != NULL)
{
/* Pick up anythign following now, before we free the
* current memory block.
*/
next = ex->m_nextException;
ex->m_nextException = NULL;
/* Free the actual structure itself
*/
delete ex;
ex = next;
}
if ( m_token)
delete m_token;
}
}
|
