Method fmt

arrow-array/src/array/primitive_array.rs:1325–1384

(&self, f: &mut std::fmt::Formatter)

impl<T: ArrowPrimitiveType> std::fmt::Debug for PrimitiveArray<T> {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        let data_type = self.data_type();

        write!(f, "PrimitiveArray<{data_type}>\n[\n")?;
        print_long_array(self, f, |array, index, f| match data_type {
            DataType::Date32 | DataType::Date64 => {
                let v = self.value(index).to_i64().unwrap();
                match as_date::<T>(v) {
                    Some(date) => write!(f, "{date:?}"),
                    None => {
                        write!(
                            f,
                            "Cast error: Failed to convert {v} to temporal for {data_type}"
                        )
                    }
                }
            }
            DataType::Time32(_) | DataType::Time64(_) => {
                let v = self.value(index).to_i64().unwrap();
                match as_time::<T>(v) {
                    Some(time) => write!(f, "{time:?}"),
                    None => {
                        write!(
                            f,
                            "Cast error: Failed to convert {v} to temporal for {data_type}"
                        )
                    }
                }
            }
            DataType::Timestamp(_, tz_string_opt) => {
                let v = self.value(index).to_i64().unwrap();
                match tz_string_opt {
                    // for Timestamp with TimeZone
                    Some(tz_string) => {
                        match tz_string.parse::<Tz>() {
                            // if the time zone is valid, construct a DateTime<Tz> and format it as rfc3339
                            Ok(tz) => match as_datetime_with_timezone::<T>(v, tz) {
                                Some(datetime) => write!(f, "{}", datetime.to_rfc3339()),
                                None => write!(f, "null"),
                            },
                            // if the time zone is invalid, shows NaiveDateTime with an error message
                            Err(_) => match as_datetime::<T>(v) {
                                Some(datetime) => {
                                    write!(f, "{datetime:?} (Unknown Time Zone '{tz_string}')")
                                }
                                None => write!(f, "null"),
                            },
                        }
                    }
                    // for Timestamp without TimeZone
                    None => match as_datetime::<T>(v) {
                        Some(datetime) => write!(f, "{datetime:?}"),
                        None => write!(f, "null"),
                    },
                }
            }
            _ => std::fmt::Debug::fmt(&array.value(index), f),
        })?;