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functions very basic functionality added

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VaclavT
2021-07-16 10:07:16 +02:00
parent 24d4fb2567
commit 3e913263fc
4 changed files with 145 additions and 135 deletions
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33
usql.h
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@@ -18,43 +18,34 @@ 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;
bool evalWhere(Node *where, Table *table, Row &row) const;
std::unique_ptr<ValueNode> evalNode(Table *table, std::vector<Row, std::allocator<Row>>::iterator &row,
Node *node) const;
std::unique_ptr<ValueNode> evalValueNode(Table *table, Row &row, Node *node) const;
std::unique_ptr<ValueNode> evalDatabaseValueNode(Table *table, Row &row, Node *node) const;
std::unique_ptr<ValueNode> evalLiteralValueNode(Table *table, Row &row, Node *node) const;
std::unique_ptr<ValueNode> evalFunctionValueNode(Table *table, Row &row, Node *node) const;
std::unique_ptr<ValueNode> evalValueNode(Node *node) const;
bool evalRelationalOperator(const RelationalOperatorNode &filter, Table *table,
std::vector<Row, std::allocator<Row>>::iterator &row) const;
bool evalRelationalOperator(const RelationalOperatorNode &filter, Table *table, Row &row) const;
bool evalLogicalOperator(LogicalOperatorNode &node, Table *pTable, Row &row) const;
std::unique_ptr<ValueNode> evalArithmeticOperator(ColumnType outType, ArithmeticalOperatorNode &node, Table *table, Row &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;
std::unique_ptr<Table> create_stmt_result_table(int code, std::string text);
Table *find_table(const std::string name);
private:
Parser m_parser;
std::vector<Table> m_tables;
};
}
} // namespace