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/// Definition of a cyclic dfa structure such that it can be
/// initialized at compile time and have only a single
/// runtime function that can deal with all cyclic dfa
/// structures and show Java how it is done ;-)
///
#ifndef ANTLR3_CYCLICDFA_HPP
#define ANTLR3_CYCLICDFA_HPP
// [The "BSD licence"]
// Copyright (c) 2005-2009 Gokulakannan Somasundaram, ElectronDB
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. The name of the author may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
namespace antlr3 {
template<class ImplTraits, class CtxType>
class CyclicDFA : public ImplTraits::AllocPolicyType
{
public:
typedef typename CtxType::StreamType StreamType;
typedef typename CtxType::ExceptionBaseType ExceptionBaseType;
typedef typename ImplTraits::template RecognizerType<StreamType> RecognizerType;
typedef typename StreamType::IntStreamType IntStreamType;
typedef typename StreamType::TokenType TokenType;
typedef TokenType CommonTokenType;
typedef CtxType ContextType;
private:
/// Decision number that a particular static structure
/// represents.
///
const ANTLR_INT32 m_decisionNumber;
/// What this decision represents
///
const ANTLR_UCHAR* m_description;
const ANTLR_INT32* const m_eot;
const ANTLR_INT32* const m_eof;
const ANTLR_INT32* const m_min;
const ANTLR_INT32* const m_max;
const ANTLR_INT32* const m_accept;
const ANTLR_INT32* const m_special;
const ANTLR_INT32* const *const m_transition;
public:
CyclicDFA( ANTLR_INT32 decisionNumber
, const ANTLR_UCHAR* description
, const ANTLR_INT32* const eot
, const ANTLR_INT32* const eof
, const ANTLR_INT32* const min
, const ANTLR_INT32* const max
, const ANTLR_INT32* const accept
, const ANTLR_INT32* const special
, const ANTLR_INT32* const *const transition );
CyclicDFA( const CyclicDFA& cdfa );
CyclicDFA& operator=( const CyclicDFA& dfa);
ANTLR_INT32 specialStateTransition(CtxType * ctx, RecognizerType* recognizer, IntStreamType* is, ANTLR_INT32 s);
ANTLR_INT32 specialTransition(CtxType * ctx, RecognizerType* recognizer, IntStreamType* is, ANTLR_INT32 s);
template<typename SuperType>
ANTLR_INT32 predict(CtxType* ctx, RecognizerType* recognizer, IntStreamType* is, SuperType& super);
private:
void noViableAlt(RecognizerType* rec, ANTLR_UINT32 s);
};
}
#include "antlr3cyclicdfa.inl"
#endif
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