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46 lines
2.4 KiB
46 lines
2.4 KiB
#pragma once
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#include <unordered_map>
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#include <boost/optional.hpp>
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#include "storm/adapters/RationalFunctionAdapter.h"
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#include "storm/storage/expressions/Expression.h"
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#include "storm/storage/expressions/Expressions.h"
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#include "storm/storage/expressions/ExpressionVisitor.h"
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#include "storm/storage/expressions/ExpressionEvaluatorBase.h"
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#include "storm/storage/expressions/Variable.h"
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namespace storm {
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namespace expressions {
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template<typename RationalNumberType>
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class ToRationalNumberVisitor : public ExpressionVisitor {
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public:
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ToRationalNumberVisitor();
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ToRationalNumberVisitor(ExpressionEvaluatorBase<RationalNumberType> const& evaluator);
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RationalNumberType toRationalNumber(Expression const& expression);
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virtual boost::any visit(IfThenElseExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(BinaryBooleanFunctionExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(BinaryNumericalFunctionExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(BinaryRelationExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(VariableExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(UnaryBooleanFunctionExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(UnaryNumericalFunctionExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(BooleanLiteralExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(IntegerLiteralExpression const& expression, boost::any const& data) override;
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virtual boost::any visit(RationalLiteralExpression const& expression, boost::any const& data) override;
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void setMapping(storm::expressions::Variable const& variable, RationalNumberType const& value);
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private:
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std::unordered_map<storm::expressions::Variable, RationalNumberType> valueMapping;
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// An optional reference to an expression evaluator (mainly for resolving the boolean condition in IfThenElse expressions)
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boost::optional<ExpressionEvaluatorBase<RationalNumberType> const&> evaluator;
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};
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}
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}
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