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124 lines
4.6 KiB
124 lines
4.6 KiB
/*
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* Variable.h
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*
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* Created on: 06.01.2013
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* Author: Christian Dehnert
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*/
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#ifndef STORM_IR_VARIABLE_H_
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#define STORM_IR_VARIABLE_H_
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#include <string>
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#include <memory>
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#include "expressions/BaseExpression.h"
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namespace storm {
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namespace parser {
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namespace prism {
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class VariableState;
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} // namespace prismparser
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} // namespace parser
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namespace ir {
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/*!
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* A class representing a untyped variable.
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*/
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class Variable {
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public:
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/*!
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* Default constructor. Creates an unnamed, untyped variable without initial value.
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*/
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Variable();
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/*!
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* Creates an untyped variable with the given name and initial value.
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*
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* @param localIndex A module-local index for the variable.
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* @param globalIndex A globally unique (among the variables of equal type) index for the variable.
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* @param variableName the name of the variable.
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* @param initialValue the expression that defines the initial value of the variable.
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*/
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Variable(uint_fast64_t localIndex, uint_fast64_t globalIndex, std::string const& variableName, std::unique_ptr<storm::ir::expressions::BaseExpression>&& initialValue = nullptr);
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/*!
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* Creates a copy of the given variable and performs the provided renaming.
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*
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* @param oldVariable The variable to copy.
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* @param newName New name of this variable.
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* @param newGlobalIndex The new global index of the variable.
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* @param renaming A mapping from names that are to be renamed to the names they are to be
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* replaced with.
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* @param variableState An object knowing about the variables in the system.
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*/
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Variable(Variable const& oldVariable, std::string const& newName, uint_fast64_t newGlobalIndex, std::map<std::string, std::string> const& renaming, storm::parser::prism::VariableState const& variableState);
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/*!
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* Creates a deep-copy of the given variable.
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*
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* @param otherVariable The variable to copy.
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*/
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Variable(Variable const& otherVariable);
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/*!
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* Creates a deep-copy of the given variable and assigns it to the current one.
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*/
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Variable& operator=(Variable const& otherVariable);
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/*!
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* Retrieves the name of the variable.
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*
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* @return The name of the variable.
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*/
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std::string const& getName() const;
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/*!
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* Retrieves the global index of the variable, i.e. the index in all variables of equal type
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* of all modules.
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*
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* @return The global index of the variable.
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*/
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uint_fast64_t getGlobalIndex() const;
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/*!
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* Retrieves the global index of the variable, i.e. the index in all variables of equal type in
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* the same module.
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*
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* @return The local index of the variable.
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*/
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uint_fast64_t getLocalIndex() const;
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/*!
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* Retrieves the expression defining the initial value of the variable.
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*
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* @return The expression defining the initial value of the variable.
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*/
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std::unique_ptr<storm::ir::expressions::BaseExpression> const& getInitialValue() const;
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/*!
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* Sets the initial value to the given expression.
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*
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* @param initialValue The new initial value.
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*/
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void setInitialValue(std::unique_ptr<storm::ir::expressions::BaseExpression>&& initialValue);
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private:
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// A unique (among the variables of equal type) index for the variable inside its module.
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uint_fast64_t localIndex;
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// A unique (among the variables of equal type) index for the variable over all modules.
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uint_fast64_t globalIndex;
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// The name of the variable.
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std::string variableName;
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// The expression defining the initial value of the variable.
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std::unique_ptr<storm::ir::expressions::BaseExpression> initialValue;
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};
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} // namespace ir
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} // namespace storm
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#endif /* STORM_IR_VARIABLE_H_ */
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