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#ifndef PARSER_SRC_NODES_H_
#define PARSER_SRC_NODES_H_
#include <map>
#include <string>
namespace SimpleParser {
enum class TokenType;
typedef std::map<std::string, double> ConstantMap;
enum class NodeType {
OPERAND,
OPERATOR,
CONSTANT,
};
class Node {
public:
virtual ~Node() {};
virtual double solve() = 0;
virtual NodeType getType() = 0;
virtual std::string print() = 0;
Node* leftChild;
Node* rightChild;
};
class OperatorNode: public Node {
public:
explicit OperatorNode(TokenType);
virtual double solve();
virtual NodeType getType();
virtual std::string print();
TokenType getToken();
private:
TokenType operator_;
};
class OperandNode: public Node {
public:
explicit OperandNode(double);
virtual double solve();
virtual NodeType getType();
virtual std::string print();
private:
double value_;
};
class ConstantNode: public Node {
public:
explicit ConstantNode(std::string, const ConstantMap*);
virtual double solve();
virtual NodeType getType();
virtual std::string print();
private:
std::string identifier_;
const ConstantMap* constants_;
};
}
#endif // PARSER_SRC_NODES_H_
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