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/**
* @file
* @author 2012-2014 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef TRANSFORMER_H_32113356
#define TRANSFORMER_H_32113356
#include "uscxml/interpreter/InterpreterRC.h"
#include <ostream>
namespace uscxml {
class USCXML_API TransformerImpl {
public:
TransformerImpl() {}
virtual void writeTo(std::ostream& stream) = 0;
virtual operator Interpreter() {
throw std::runtime_error("Transformer cannot be interpreted as an Interpreter again");
}
};
class USCXML_API Transformer : public boost::enable_shared_from_this<Transformer> {
public:
// Transformer(const Interpreter& source) { _impl = new (source) }
Transformer() : _impl() {} // the empty, invalid interpreter
Transformer(boost::shared_ptr<TransformerImpl> const impl) : _impl(impl) { }
Transformer(const Transformer& other) : _impl(other._impl) { }
virtual ~Transformer() {};
operator bool() const {
return (_impl);
}
bool operator< (const Transformer& other) const {
return _impl < other._impl;
}
bool operator==(const Transformer& other) const {
return _impl == other._impl;
}
bool operator!=(const Transformer& other) const {
return _impl != other._impl;
}
Transformer& operator= (const Transformer& other) {
_impl = other._impl;
return *this;
}
virtual void writeTo(std::ostream& stream) {
_impl->writeTo(stream);
}
operator Interpreter() {
return _impl->operator Interpreter();
}
boost::shared_ptr<TransformerImpl> getImpl() {
return _impl;
}
protected:
boost::shared_ptr<TransformerImpl> _impl;
};
}
#endif /* end of include guard: TRANSFORMER_H_32113356 */
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