Trait polars::prelude::datatypes::PolarsDataType

pub unsafe trait PolarsDataType: Sized + Send + Sync {
    type Physical<'a>: Debug + Clone;
    type ZeroablePhysical<'a>: Zeroable + From<Self::Physical<'a>>;
    type Array: for<'a> StaticArray<ValueT<'a> = Self::Physical<'a>, ZeroableValueT<'a> = Self::ZeroablePhysical<'a>>;
    type Structure;

    // Required method
    fn get_dtype() -> DataType
       where Self: Sized;
}

Expand description

§Safety

The StaticArray and dtype return must be correct.

Required Associated Types§

type Physical<'a>: Debug + Clone

type ZeroablePhysical<'a>: Zeroable + From<Self::Physical<'a>>

type Array: for<'a> StaticArray<ValueT<'a> = Self::Physical<'a>, ZeroableValueT<'a> = Self::ZeroablePhysical<'a>>

type Structure

Required Methods§

fn get_dtype() -> DataType
where Self: Sized,

Object Safety§

This trait is not object safe.

Implementors§

impl PolarsDataType for BinaryOffsetType

type Physical<'a> = &'a [u8]

type ZeroablePhysical<'a> = Option<&'a [u8]>

type Array = BinaryArray<i64>

type Structure = Flat

impl PolarsDataType for BinaryType

type Physical<'a> = &'a [u8]

type ZeroablePhysical<'a> = Option<&'a [u8]>

type Array = BinaryViewArrayGeneric<[u8]>

type Structure = Flat

impl PolarsDataType for BooleanType

type Physical<'a> = bool

type ZeroablePhysical<'a> = bool

type Array = BooleanArray

type Structure = Flat

impl PolarsDataType for CategoricalType

type Physical<'a> = u32

type ZeroablePhysical<'a> = u32

type Array = PrimitiveArray<u32>

type Structure = Flat

impl PolarsDataType for DateType

type Physical<'a> = i32

type ZeroablePhysical<'a> = i32

type Array = PrimitiveArray<i32>

type Structure = Flat

impl PolarsDataType for DatetimeType

type Physical<'a> = i64

type ZeroablePhysical<'a> = i64

type Array = PrimitiveArray<i64>

type Structure = Flat

impl PolarsDataType for DecimalType

type Physical<'a> = i128

type ZeroablePhysical<'a> = i128

type Array = PrimitiveArray<i128>

type Structure = Flat

impl PolarsDataType for DurationType

type Physical<'a> = i64

type ZeroablePhysical<'a> = i64

type Array = PrimitiveArray<i64>

type Structure = Flat

impl PolarsDataType for FixedSizeListType

Available on crate feature dtype-array only.

type Physical<'a> = Box<dyn Array>

type ZeroablePhysical<'a> = Option<Box<dyn Array>>

type Array = FixedSizeListArray

type Structure = Nested

impl PolarsDataType for Float32Type

type Physical<'a> = f32

type ZeroablePhysical<'a> = f32

type Array = PrimitiveArray<f32>

type Structure = Flat

impl PolarsDataType for Float64Type

type Physical<'a> = f64

type ZeroablePhysical<'a> = f64

type Array = PrimitiveArray<f64>

type Structure = Flat

impl PolarsDataType for Int8Type

type Physical<'a> = i8

type ZeroablePhysical<'a> = i8

type Array = PrimitiveArray<i8>

type Structure = Flat

impl PolarsDataType for Int16Type

type Physical<'a> = i16

type ZeroablePhysical<'a> = i16

type Array = PrimitiveArray<i16>

type Structure = Flat

impl PolarsDataType for Int32Type

type Physical<'a> = i32

type ZeroablePhysical<'a> = i32

type Array = PrimitiveArray<i32>

type Structure = Flat

impl PolarsDataType for Int64Type

type Physical<'a> = i64

type ZeroablePhysical<'a> = i64

type Array = PrimitiveArray<i64>

type Structure = Flat

impl PolarsDataType for Int128Type

Available on crate feature dtype-decimal only.

type Physical<'a> = i128

type ZeroablePhysical<'a> = i128

type Array = PrimitiveArray<i128>

type Structure = Flat

impl PolarsDataType for ListType

type Physical<'a> = Box<dyn Array>

type ZeroablePhysical<'a> = Option<Box<dyn Array>>

type Array = ListArray<i64>

type Structure = Nested

impl PolarsDataType for StringType

type Physical<'a> = &'a str

type ZeroablePhysical<'a> = Option<&'a str>

type Array = BinaryViewArrayGeneric<str>

type Structure = Flat

impl PolarsDataType for TimeType

type Physical<'a> = i64

type ZeroablePhysical<'a> = i64

type Array = PrimitiveArray<i64>

type Structure = Flat

impl PolarsDataType for UInt8Type

type Physical<'a> = u8

type ZeroablePhysical<'a> = u8

type Array = PrimitiveArray<u8>

type Structure = Flat

impl PolarsDataType for UInt16Type

type Physical<'a> = u16

type ZeroablePhysical<'a> = u16

type Array = PrimitiveArray<u16>

type Structure = Flat

impl PolarsDataType for UInt32Type

type Physical<'a> = u32

type ZeroablePhysical<'a> = u32

type Array = PrimitiveArray<u32>

type Structure = Flat

impl PolarsDataType for UInt64Type

type Physical<'a> = u64

type ZeroablePhysical<'a> = u64

type Array = PrimitiveArray<u64>

type Structure = Flat

impl<T> PolarsDataType for ObjectType<T>
where T: PolarsObject,

Available on crate feature object only.

type Physical<'a> = &'a T

type ZeroablePhysical<'a> = Option<&'a T>

type Array = ObjectArray<T>

type Structure = Nested