Function send_ref_fold_map 

pub fn send_ref_fold_map<'a, FnBrand: SendLiftFn + 'a, Brand: SendRefFoldable, A: Send + Sync + 'a + Clone, M>(
    func: impl Fn(&A) -> M + Send + Sync + 'a,
    fa: &<Brand as Kind_cdc7cd43dac7585f>::Of<'a, A>,
) -> M
where
    M: Monoid + Send + Sync + 'a,

Maps values to a monoid by reference and combines them (thread-safe).

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

Type Signature

forall Brand A M. (SendRefFoldable Brand, Monoid M) => (&A -> M, &Brand A) -> M

Type Parameters

• 'a: The lifetime of the elements.
• FnBrand: The brand of the cloneable function to use.
• Brand: The brand of the structure.
• A: The type of the elements.
• M: The monoid type.

Parameters

• func: The function to map each element reference to a monoid.
• fa: The structure to fold.

Returns

The combined monoid value.

Examples

use fp_library::{
	brands::*,
	classes::send_ref_foldable::*,
	types::*,
};

let lazy = ArcLazy::new(|| 5);
let result = send_ref_fold_map::<ArcFnBrand, LazyBrand<ArcLazyConfig>, _, _>(
	|a: &i32| a.to_string(),
	&lazy,
);
assert_eq!(result, "5");