50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#pragma once
|
|
|
|
#include "parser.h"
|
|
#include "table.h"
|
|
|
|
#include <string>
|
|
|
|
namespace usql {
|
|
|
|
class uSQL {
|
|
|
|
public:
|
|
std::unique_ptr<Table> execute(const std::string &command);
|
|
|
|
private:
|
|
std::unique_ptr<Table> execute(Node &node);
|
|
|
|
std::unique_ptr<Table> execute_create_table(CreateTableNode &node);
|
|
std::unique_ptr<Table> execute_insert_into_table(InsertIntoTableNode &node);
|
|
std::unique_ptr<Table> execute_select(SelectFromTableNode &node);
|
|
std::unique_ptr<Table> execute_delete(DeleteFromTableNode &node);
|
|
std::unique_ptr<Table> execute_update(UpdateTableNode &node);
|
|
std::unique_ptr<Table> execute_load(LoadIntoTableNode &node);
|
|
|
|
Table *find_table(const std::string name);
|
|
std::unique_ptr<Table> create_stmt_result_table(int code, std::string text);
|
|
|
|
|
|
private:
|
|
bool evalWhere(Node *where, Table *table,
|
|
std::vector<Row, std::allocator<Row>>::iterator &row) const;
|
|
|
|
std::unique_ptr<ValueNode> evalNode(Table *table, std::vector<Row, std::allocator<Row>>::iterator &row,
|
|
Node *node) const;
|
|
|
|
bool evalRelationalOperator(const RelationalOperatorNode &filter, Table *table,
|
|
std::vector<Row, std::allocator<Row>>::iterator &row) const;
|
|
|
|
bool evalLogicalOperator(LogicalOperatorNode &node, Table *pTable,
|
|
std::vector<Row, std::allocator<Row>>::iterator &iter) const;
|
|
|
|
std::unique_ptr<ValueNode> evalArithmetic(ColumnType outType, ArithmeticalOperatorNode &node, Table *table,
|
|
std::vector<Row, std::allocator<Row>>::iterator &row) const;
|
|
|
|
private:
|
|
Parser m_parser;
|
|
std::vector<Table> m_tables;
|
|
};
|
|
|
|
} |