fn insert_at_value_cursor(&mut self, data: u8) -> Result<()>
fn insert_all_at_value_cursor(&mut self, data: &[u8]) -> Result<()>
fn insert_at_ref_cursor(&mut self, r: usize)
fn get_value_cursor(&self) -> usize
fn get_data_mut(&mut self) -> &mut Vec<u8>
fn get_symbol_table_mut(&mut self) -> &mut HashMap<String, usize>
fn get_expression_table_mut(&mut self) -> &mut Vec<usize>
fn get_expression_map_mut(&mut self) -> &mut HashMap<String, usize>