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separate

Function separate 

Source
pub fn separate<'a, Brand: Compactable, E: 'a, O: 'a>(
    fa: <Brand as Kind_cdc7cd43dac7585f>::Of<'a, Result<O, E>>,
) -> (<Brand as Kind_cdc7cd43dac7585f>::Of<'a, E>, <Brand as Kind_cdc7cd43dac7585f>::Of<'a, O>)
Expand description

Separates a data structure of Results into two data structures: one containing the Err values and one containing the Ok values.

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

§Type Signature

forall Brand E O. Compactable Brand => Brand (Result O E) -> (Brand E, Brand O)

§Type Parameters

  • 'a: The lifetime of the elements.
  • Brand: The brand of the compactable structure.
  • E: The type of the error values.
  • O: The type of the success values.

§Parameters

  • fa: The data structure containing Result values.

§Returns

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

§Examples

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

let x: Option<Result<i32, &str>> = Some(Ok(5));
let (errs, oks) = separate::<OptionBrand, _, _>(x);
assert_eq!(oks, Some(5));
assert_eq!(errs, None);