Trait ColumnsUdf 

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

    // Provided method
    fn as_any(&self) -> &(dyn Any + 'static) { ... }
}

Available on crate feature lazy only.

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

Required Methods

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

Provided Methods

fn as_any(&self) -> &(dyn Any + 'static)

Trait Implementations

impl Debug for dyn ColumnsUdf

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

Formats the value using the given formatter.

Implementors

impl<F> ColumnsUdf for F

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

impl<F, DT> ColumnsUdf for BaseColumnUdf<F, DT>

where F: Fn(&mut [Column]) -> Result<Column, PolarsError> + Send + Sync, DT: Fn(&Schema<DataType>, &[Field]) -> Result<Field, PolarsError> + Send + Sync,