Assignment.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 Assignment : public LocatedInformation {
   public:
    Assignment(storm::expressions::Variable const& variable, storm::expressions::Expression const& expression, std::string const& filename = "",
               uint_fast64_t lineNumber = 0);
 
    // Create default implementations of constructors/assignment.
    Assignment() = default;
    Assignment(Assignment const& other) = default;
    Assignment& operator=(Assignment const& other) = default;
    Assignment(Assignment&& other) = default;
    Assignment& operator=(Assignment&& other) = default;

    std::string const& getVariableName() const;

    storm::expressions::Variable const& getVariable() const;

    storm::expressions::Expression const& getExpression() const;

    Assignment substitute(std::map<storm::expressions::Variable, storm::expressions::Expression> const& substitution) const;
 
    Assignment substituteNonStandardPredicates() const;

    bool isIdentity() const;
 
    friend std::ostream& operator<<(std::ostream& stream, Assignment const& assignment);
 
   private:
    // The variable written in this assignment.
    storm::expressions::Variable variable;
 
    // The expression that is assigned to the variable.
    storm::expressions::Expression expression;
};
}  // namespace prism
}  // namespace storm