106 lines
2.1 KiB
C++
106 lines
2.1 KiB
C++
#pragma once
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#include "exception.h"
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#include "parser.h"
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#include <vector>
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namespace usql {
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struct ColValue {
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virtual bool isNull() { return false; };
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virtual int integerValue() { throw Exception("Not supported"); };
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virtual double floatValue() { throw Exception("Not supported"); };
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virtual std::string stringValue() { throw Exception("Not supported"); };
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};
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struct ColNullValue : ColValue {
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virtual bool isNull() { return true; };
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virtual std::string stringValue() { return "null"; };
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};
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struct ColIntegerValue : ColValue {
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ColIntegerValue(int value) : m_integer(value) {};
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ColIntegerValue(const ColIntegerValue &other) : m_integer(other.m_integer) {};
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virtual int integerValue() { return m_integer; };
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virtual double floatValue() { return (double) m_integer; };
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virtual std::string stringValue() { return std::to_string(m_integer); };
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int m_integer;
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};
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struct ColFloatValue : ColValue {
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ColFloatValue(double value) : m_float(value) {};
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ColFloatValue(const ColFloatValue &other) : m_float(other.m_float) {}
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virtual int integerValue() { return (int) m_float; };
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virtual double floatValue() { return m_float; };
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virtual std::string stringValue() { return std::to_string(m_float); };
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double m_float;
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};
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struct ColStringValue : ColValue {
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ColStringValue(const std::string value) : m_string(value) {};
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ColStringValue(const ColStringValue &other) : m_string(other.m_string) {};
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virtual int integerValue() { return std::stoi(m_string); };
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virtual double floatValue() { return std::stod(m_string); };
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virtual std::string stringValue() { return m_string; };
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std::string m_string;
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};
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class Row {
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public:
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Row(int cols_count);
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Row(const Row &other);
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Row &operator=(Row other);
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void setColumnNull(int col_index);
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void setColumnValue(int col_index, int value);
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void setColumnValue(int col_index, double value);
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void setColumnValue(int col_index, const std::string &value);
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ColValue &operator[](int i) {
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return *m_columns[i];
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}
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ColValue * ithColumn(int i) const {
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return m_columns[i].get();
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}
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void print();
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private:
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std::vector<std::unique_ptr<ColValue>> m_columns;
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};
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} |