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49 lines
2.0 KiB
49 lines
2.0 KiB
#ifndef STORM_STORAGE_EXPRESSIONS_CONSTANTEXPRESSION_H_
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#define STORM_STORAGE_EXPRESSIONS_CONSTANTEXPRESSION_H_
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#include "src/storage/expressions/BaseExpression.h"
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namespace storm {
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namespace expressions {
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class ConstantExpression : public BaseExpression {
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public:
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/*!
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* Creates a constant expression with the given return type and constant name.
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*
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* @param returnType The return type of the expression.
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* @param constantName The name of the constant associated with this expression.
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*/
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ConstantExpression(ExpressionReturnType returnType, std::string const& constantName);
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// Provide custom versions of copy construction and assignment.
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ConstantExpression(ConstantExpression const& other);
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ConstantExpression& operator=(ConstantExpression const& other);
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// Create default variants of move construction/assignment and virtual destructor.
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ConstantExpression(ConstantExpression&&) = default;
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ConstantExpression& operator=(ConstantExpression&&) = default;
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virtual ~ConstantExpression() = default;
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// Override base class methods.
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virtual bool isConstant() const override;
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virtual bool isTrue() const override;
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virtual bool isFalse() const override;
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virtual std::set<std::string> getVariables() const override;
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virtual std::set<std::string> getConstants() const override;
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virtual std::unique_ptr<BaseExpression> simplify() const override;
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/*!
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* Retrieves the name of the constant.
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*
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* @return The name of the constant.
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*/
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std::string const& getConstantName() const;
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private:
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// The name of the constant.
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std::string constantName;
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};
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}
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}
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#endif /* STORM_STORAGE_EXPRESSIONS_CONSTANTEXPRESSION_H_ */
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