Trait polars_arrow::array::ViewType

pub trait ViewType: Sealed + 'static + PartialEq + AsRef<Self> {
    type Owned: Debug + Clone + Sync + Send + AsRef<Self>;

    const IS_UTF8: bool;
    const DATA_TYPE: ArrowDataType;

    // Required methods
    unsafe fn from_bytes_unchecked(slice: &[u8]) -> &Self;
    fn to_bytes(&self) -> &[u8] ;
    fn into_owned(&self) -> Self::Owned;
    fn dtype() -> &'static ArrowDataType;
}

Required Associated Types

type Owned: Debug + Clone + Sync + Send + AsRef<Self>

Required Associated Constants

const IS_UTF8: bool

const DATA_TYPE: ArrowDataType

Required Methods

unsafe fn from_bytes_unchecked(slice: &[u8]) -> &Self

Safety

The caller must ensure index < self.len().

fn to_bytes(&self) -> &[u8]

fn into_owned(&self) -> Self::Owned

fn dtype() -> &'static ArrowDataType

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl ViewType for str

const IS_UTF8: bool = true

const DATA_TYPE: ArrowDataType = ArrowDataType::Utf8View

type Owned = String

unsafe fn from_bytes_unchecked(slice: &[u8]) -> &Self

fn to_bytes(&self) -> &[u8]

fn into_owned(&self) -> Self::Owned

fn dtype() -> &'static ArrowDataType

impl ViewType for [u8]

const IS_UTF8: bool = false

const DATA_TYPE: ArrowDataType = ArrowDataType::BinaryView

type Owned = Vec<u8>

unsafe fn from_bytes_unchecked(slice: &[u8]) -> &Self

fn to_bytes(&self) -> &[u8]

fn into_owned(&self) -> Self::Owned

fn dtype() -> &'static ArrowDataType

Implementors