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78 lines
2.0 KiB
78 lines
2.0 KiB
/*
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* Abstractformula.h
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*
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* Created on: 19.10.2012
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* Author: Thomas Heinemann
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*/
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#ifndef STORM_FORMULA_ABSTRACT_ABSTRACTFORMULA_H_
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#define STORM_FORMULA_ABSTRACT_ABSTRACTFORMULA_H_
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#include <string>
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namespace storm {
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namespace formula {
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namespace abstract {
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template <class T> class AbstractFormula;
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}
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}
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}
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#include "src/modelchecker/ForwardDeclarations.h"
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#include "src/formula/AbstractFormulaChecker.h"
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namespace storm {
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namespace formula {
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namespace abstract {
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//abstract
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/*!
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* @brief Abstract base class for Abstract formulas in general.
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*
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* @attention This class is abstract.
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* @note Formula classes do not have copy constructors. The parameters of the constructors are usually the subtrees, so
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* the syntax conflicts with copy constructors for unary operators. To produce an identical object, the classes
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* AbstractFormula and AbstractFormula offer the method clone().
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*
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* This is the base class for every formula class in every logic.
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*/
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template <class T>
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class AbstractFormula {
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public:
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/*!
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* Virtual destructor.
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*/
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virtual ~AbstractFormula() { }
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/*!
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* @brief Return string representation of this formula.
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*
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* @note very subclass must implement this method.
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*
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* @returns a string representation of the formula
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*/
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virtual std::string toString() const = 0;
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/*!
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* @brief Checks if all subtrees are valid in some logic.
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*
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* @note Every subclass must implement this method.
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*
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* This method is given a checker object that knows which formula
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* classes are allowed within the logic the checker represents. Every
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* subclass is supposed to call checker.conforms() for all child
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* formulas and return true if and only if all those calls returned
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* true.
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*
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* @param checker Checker object.
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* @return true iff all subtrees are valid.
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*/
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virtual bool conforms(const AbstractFormulaChecker<T>& checker) const = 0;
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};
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} // namespace abstract
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} // namespace formula
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} // namespace storm
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#endif /* STORM_FORMULA_ABSTRACT_ABSTRACTFORMULA_H_ */
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