Method adjust_position

crates/vm/src/stdlib/_io.rs:1446–1451

(&mut self, new_pos: Offset)

        }

        const fn adjust_position(&mut self, new_pos: Offset) {
            self.pos = new_pos;
            if self.valid_read() && self.read_end < self.pos {
                self.read_end = self.pos
            }
        }

        fn peek(&mut self, vm: &VirtualMachine) -> PyResult<Vec<u8>> {
            let have = self.readahead();