Function partition_map 

pub fn partition_map<'a, Brand: Filterable, A: 'a, O: 'a, E: 'a, Func>(
    func: Func,
    fa: <Brand as Kind_cdc7cd43dac7585f>::Of<'a, A>,
) -> Pair<<Brand as Kind_cdc7cd43dac7585f>::Of<'a, O>, <Brand as Kind_cdc7cd43dac7585f>::Of<'a, E>>
where
    Func: Fn(A) -> Result<O, E> + 'a,

Partitions a data structure based on a function that returns a Result.

Free function version that dispatches to the type class’ associated function.

Type Signature

forall brand a o e. Filterable brand => (a -> Result o e, brand a) -> Pair (brand o) (brand e)

Type Parameters

• 'a: The lifetime of the elements.
• Brand: The brand of the filterable structure.
• A: The type of the elements in the input structure.
• O: The type of the success values.
• E: The type of the error values.
• Func: The type of the function to apply.

Parameters

• func: The function to apply to each element, returning a Result.
• fa: The data structure to partition.

Returns

A pair of data structures: the first containing the Ok values, and the second containing the Err values.

Examples

use fp_library::{brands::*, functions::*, types::*};

let x = Some(5);
let Pair(oks, errs) = partition_map::<OptionBrand, _, _, _, _>(|a| if a > 2 { Ok(a) } else { Err(a) }, x);
assert_eq!(oks, Some(5));
assert_eq!(errs, None);