tempest/src/storm/storage/expressions/ExpressionEvaluator.cpp

#include "storm/storage/expressions/ExpressionEvaluator.h"
#include "storm/storage/expressions/ExpressionManager.h"

#include "storm/utility/constants.h"

namespace storm {
    namespace expressions {
        ExpressionEvaluator<double>::ExpressionEvaluator(storm::expressions::ExpressionManager const& manager) : ExprtkExpressionEvaluator(manager) {
            // Intentionally left empty.
        }
        
        template<typename RationalType>
        ExpressionEvaluatorWithVariableToExpressionMap<RationalType>::ExpressionEvaluatorWithVariableToExpressionMap(storm::expressions::ExpressionManager const& manager) : ExprtkExpressionEvaluatorBase<RationalType>(manager) {
            // Intentionally left empty.
        }
        
        template<typename RationalType>
        void ExpressionEvaluatorWithVariableToExpressionMap<RationalType>::setBooleanValue(storm::expressions::Variable const& variable, bool value) {
            ExprtkExpressionEvaluatorBase<RationalType>::setBooleanValue(variable, value);
            this->variableToExpressionMap[variable] = this->getManager().boolean(value);
        }
        
        template<typename RationalType>
        void ExpressionEvaluatorWithVariableToExpressionMap<RationalType>::setIntegerValue(storm::expressions::Variable const& variable, int_fast64_t value) {
            ExprtkExpressionEvaluatorBase<RationalType>::setIntegerValue(variable, value);
            this->variableToExpressionMap[variable] = this->getManager().integer(value);
        }
        
        template<typename RationalType>
        void ExpressionEvaluatorWithVariableToExpressionMap<RationalType>::setRationalValue(storm::expressions::Variable const& variable, double value) {
            ExprtkExpressionEvaluatorBase<RationalType>::setRationalValue(variable, value);
            this->variableToExpressionMap[variable] = this->getManager().rational(value);
        }

#ifdef STORM_HAVE_CARL
        ExpressionEvaluator<RationalNumber>::ExpressionEvaluator(storm::expressions::ExpressionManager const& manager) : ExprtkExpressionEvaluatorBase<RationalNumber>(manager), rationalNumberVisitor(*this) {
            // Intentionally left empty.
        }

        void ExpressionEvaluator<RationalNumber>::setBooleanValue(storm::expressions::Variable const& variable, bool value) {
            ExprtkExpressionEvaluatorBase<RationalNumber>::setBooleanValue(variable, value);
            
            // Not forwarding value of variable to rational number visitor as it cannot treat boolean variables anyway.
        }
        
        void ExpressionEvaluator<RationalNumber>::setIntegerValue(storm::expressions::Variable const& variable, int_fast64_t value) {
            ExprtkExpressionEvaluatorBase<RationalNumber>::setIntegerValue(variable, value);
            rationalNumberVisitor.setMapping(variable, storm::utility::convertNumber<RationalNumber>(value));
        }
        
        void ExpressionEvaluator<RationalNumber>::setRationalValue(storm::expressions::Variable const& variable, double value) {
            ExprtkExpressionEvaluatorBase<RationalNumber>::setRationalValue(variable, value);
            rationalNumberVisitor.setMapping(variable, storm::utility::convertNumber<RationalNumber>(value));
        }

        RationalNumber ExpressionEvaluator<RationalNumber>::asRational(Expression const& expression) const {
            RationalNumber result = this->rationalNumberVisitor.toRationalNumber(expression);
            return result;
        }
        
        ExpressionEvaluator<RationalFunction>::ExpressionEvaluator(storm::expressions::ExpressionManager const& manager) : ExprtkExpressionEvaluatorBase<RationalFunction>(manager), rationalFunctionVisitor(*this) {
            // Intentionally left empty.
        }
        
        void ExpressionEvaluator<RationalFunction>::setBooleanValue(storm::expressions::Variable const& variable, bool value) {
            ExprtkExpressionEvaluatorBase<RationalFunction>::setBooleanValue(variable, value);
            
            // Not forwarding value of variable to rational number visitor as it cannot treat boolean variables anyway.
        }
        
        void ExpressionEvaluator<RationalFunction>::setIntegerValue(storm::expressions::Variable const& variable, int_fast64_t value) {
            ExprtkExpressionEvaluatorBase<RationalFunction>::setIntegerValue(variable, value);
            rationalFunctionVisitor.setMapping(variable, storm::utility::convertNumber<RationalFunction>(value));
        }
        
        void ExpressionEvaluator<RationalFunction>::setRationalValue(storm::expressions::Variable const& variable, double value) {
            ExprtkExpressionEvaluatorBase<RationalFunction>::setRationalValue(variable, value);
            rationalFunctionVisitor.setMapping(variable, storm::utility::convertNumber<RationalFunction>(value));
        }
        
        RationalFunction ExpressionEvaluator<RationalFunction>::asRational(Expression const& expression) const {
            return this->rationalFunctionVisitor.toRationalFunction(expression);
        }
        
        template class ExpressionEvaluatorWithVariableToExpressionMap<RationalNumber>;
        template class ExpressionEvaluatorWithVariableToExpressionMap<RationalFunction>;
#endif
    }
}