Trait ColumnsUdf

pub trait ColumnsUdf: Send + Sync {
    // Required method
    fn call_udf(&self, s: &mut [Column]) -> PolarsResult<Option<Column>>;

    // Provided methods
    fn as_any(&self) -> &dyn Any { ... }
    fn try_serialize(&self, _buf: &mut Vec<u8>) -> PolarsResult<()> { ... }
}

A wrapper trait for any closure Fn(Vec<Series>) -> PolarsResult<Series>

Required Methods

fn call_udf(&self, s: &mut [Column]) -> PolarsResult<Option<Column>>

Provided Methods

fn as_any(&self) -> &dyn Any

fn try_serialize(&self, _buf: &mut Vec<u8>) -> PolarsResult<()>

Trait Implementations

impl Debug for dyn ColumnsUdf

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

Implementors

impl ColumnsUdf for PythonUdfExpression

Available on crate feature python only.

impl<F> ColumnsUdf for F

where F: Fn(&mut [Column]) -> PolarsResult<Option<Column>> + Send + Sync,