Trait polars::prelude::datatypes::PolarsDataType

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

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

§Safety

The StaticArray and dtype return must be correct.

Required Associated Types§

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type Physical<'a>: Debug + Clone

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type OwnedPhysical: Debug + Send + Sync + Clone + PartialEq

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

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

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type IsNested

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type HasViews

Required Methods§

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

Object Safety§

This trait is not object safe.

Implementors§

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impl PolarsDataType for BinaryOffsetType

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

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type OwnedPhysical = Box<[u8]>

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

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type Array = BinaryArray<i64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for BinaryType

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

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type OwnedPhysical = Box<[u8]>

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

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type Array = BinaryViewArrayGeneric<[u8]>

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type IsNested = FalseT

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type HasViews = TrueT

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impl PolarsDataType for BooleanType

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type Physical<'a> = bool

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type OwnedPhysical = bool

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type ZeroablePhysical<'a> = bool

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type Array = BooleanArray

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for CategoricalType

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type Physical<'a> = u32

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type OwnedPhysical = u32

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type ZeroablePhysical<'a> = u32

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type Array = PrimitiveArray<u32>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for DateType

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type Physical<'a> = i32

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type OwnedPhysical = i32

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type ZeroablePhysical<'a> = i32

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type Array = PrimitiveArray<i32>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for DatetimeType

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type Physical<'a> = i64

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type OwnedPhysical = i64

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type ZeroablePhysical<'a> = i64

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type Array = PrimitiveArray<i64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for DecimalType

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type Physical<'a> = i128

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type OwnedPhysical = i128

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type ZeroablePhysical<'a> = i128

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type Array = PrimitiveArray<i128>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for DurationType

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type Physical<'a> = i64

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type OwnedPhysical = i64

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type ZeroablePhysical<'a> = i64

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type Array = PrimitiveArray<i64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for FixedSizeListType

Available on crate feature dtype-array only.
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type Physical<'a> = Box<dyn Array>

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type OwnedPhysical = Box<dyn Array>

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

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type Array = FixedSizeListArray

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type IsNested = TrueT

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type HasViews = FalseT

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impl PolarsDataType for Float32Type

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type Physical<'a> = f32

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type OwnedPhysical = f32

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type ZeroablePhysical<'a> = f32

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type Array = PrimitiveArray<f32>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Float64Type

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type Physical<'a> = f64

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type OwnedPhysical = f64

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type ZeroablePhysical<'a> = f64

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type Array = PrimitiveArray<f64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Int8Type

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type Physical<'a> = i8

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type OwnedPhysical = i8

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type ZeroablePhysical<'a> = i8

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type Array = PrimitiveArray<i8>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Int16Type

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type Physical<'a> = i16

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type OwnedPhysical = i16

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type ZeroablePhysical<'a> = i16

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type Array = PrimitiveArray<i16>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Int32Type

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type Physical<'a> = i32

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type OwnedPhysical = i32

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type ZeroablePhysical<'a> = i32

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type Array = PrimitiveArray<i32>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Int64Type

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type Physical<'a> = i64

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type OwnedPhysical = i64

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type ZeroablePhysical<'a> = i64

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type Array = PrimitiveArray<i64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for Int128Type

Available on crate feature dtype-decimal only.
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type Physical<'a> = i128

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type OwnedPhysical = i128

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type ZeroablePhysical<'a> = i128

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type Array = PrimitiveArray<i128>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for ListType

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

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type OwnedPhysical = Box<dyn Array>

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

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type Array = ListArray<i64>

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type IsNested = TrueT

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type HasViews = FalseT

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impl PolarsDataType for StringType

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type Physical<'a> = &'a str

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type OwnedPhysical = String

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

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type Array = BinaryViewArrayGeneric<str>

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type IsNested = FalseT

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type HasViews = TrueT

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impl PolarsDataType for TimeType

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type Physical<'a> = i64

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type OwnedPhysical = i64

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type ZeroablePhysical<'a> = i64

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type Array = PrimitiveArray<i64>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for UInt8Type

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type Physical<'a> = u8

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type OwnedPhysical = u8

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type ZeroablePhysical<'a> = u8

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type Array = PrimitiveArray<u8>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for UInt16Type

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type Physical<'a> = u16

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type OwnedPhysical = u16

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type ZeroablePhysical<'a> = u16

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type Array = PrimitiveArray<u16>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for UInt32Type

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type Physical<'a> = u32

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type OwnedPhysical = u32

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type ZeroablePhysical<'a> = u32

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type Array = PrimitiveArray<u32>

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type IsNested = FalseT

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type HasViews = FalseT

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impl PolarsDataType for UInt64Type

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type Physical<'a> = u64

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type OwnedPhysical = u64

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type ZeroablePhysical<'a> = u64

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type Array = PrimitiveArray<u64>

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type IsNested = FalseT

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type HasViews = FalseT

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

Available on crate feature object only.