39 lines
1.9 KiB
39 lines
1.9 KiB
#ifndef STORM_STORAGE_EXPRESSIONS_EXPRESSIONVISITOR_H_
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#define STORM_STORAGE_EXPRESSIONS_EXPRESSIONVISITOR_H_
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#include <boost/any.hpp>
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#include <boost/none.hpp>
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namespace storm {
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namespace expressions {
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// Forward-declare all expression classes.
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class IfThenElseExpression;
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class BinaryBooleanFunctionExpression;
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class BinaryNumericalFunctionExpression;
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class BinaryRelationExpression;
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class VariableExpression;
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class UnaryBooleanFunctionExpression;
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class UnaryNumericalFunctionExpression;
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class BooleanLiteralExpression;
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class IntegerLiteralExpression;
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class RationalLiteralExpression;
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class ExpressionVisitor {
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public:
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virtual ~ExpressionVisitor() = default;
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virtual boost::any visit(IfThenElseExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(BinaryBooleanFunctionExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(BinaryNumericalFunctionExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(BinaryRelationExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(VariableExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(UnaryBooleanFunctionExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(UnaryNumericalFunctionExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(BooleanLiteralExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(IntegerLiteralExpression const& expression, boost::any const& data) = 0;
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virtual boost::any visit(RationalLiteralExpression const& expression, boost::any const& data) = 0;
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};
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}
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}
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#endif /* STORM_STORAGE_EXPRESSIONS_EXPRESSIONVISITOR_H_ */
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