Constant.h

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#pragma once
 
#include <map>
 
#include "storm/storage/expressions/Expression.h"
#include "storm/storage/expressions/Variable.h"
#include "storm/storage/prism/LocatedInformation.h"
 
namespace storm {
namespace prism {
class Constant : public LocatedInformation {
   public:
    Constant(storm::expressions::Variable const& variable, storm::expressions::Expression const& expression, std::string const& filename = "",
             uint_fast64_t lineNumber = 0);
 
    Constant(storm::expressions::Variable const& variable, std::string const& filename = "", uint_fast64_t lineNumber = 0);
 
    // Create default implementations of constructors/assignment.
    Constant() = default;
    Constant(Constant const& other) = default;
    Constant& operator=(Constant const& other) = default;
    Constant(Constant&& other) = default;
    Constant& operator=(Constant&& other) = default;
 
    std::string const& getName() const;
 
    storm::expressions::Type const& getType() const;
 
    storm::expressions::Variable const& getExpressionVariable() const;
 
    bool isDefined() const;
 
    storm::expressions::Expression const& getExpression() const;
 
    Constant substitute(std::map<storm::expressions::Variable, storm::expressions::Expression> const& substitution) const;
 
    friend std::ostream& operator<<(std::ostream& stream, Constant const& constant);
 
   private:
    // The expression variable associated with the constant.
    storm::expressions::Variable variable;
 
    // The expression that defines the constant (in case it is defined).
    storm::expressions::Expression expression;
};
 
bool operator==(Constant const& lhs, Constant const& rhs);
 
}  // namespace prism
}  // namespace storm