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orx_parallel/infallible/fun/map/
basic.rs

1use crate::infallible::fun::Map;
2use core::marker::PhantomData;
3
4/// Map adapter backed by a closure.
5pub struct FnMap<I, O, F: Fn(I) -> O + Copy + Send>(F, PhantomData<I>);
6
7impl<I, O, F: Fn(I) -> O + Copy + Send> Clone for FnMap<I, O, F> {
8    fn clone(&self) -> Self {
9        *self
10    }
11}
12
13impl<I, O, F: Fn(I) -> O + Copy + Send> Copy for FnMap<I, O, F> {}
14
15unsafe impl<I, O, F: Fn(I) -> O + Copy + Send> Send for FnMap<I, O, F> {}
16
17impl<I, O, F: Fn(I) -> O + Copy + Send> FnMap<I, O, F> {
18    /// Creates a map adapter.
19    pub fn new(f: F) -> Self {
20        Self(f, PhantomData)
21    }
22}
23
24impl<I, O, F: Fn(I) -> O + Copy + Send> Map for FnMap<I, O, F> {
25    type I = I;
26
27    type O = O;
28
29    #[inline(always)]
30    fn map(&self, i: Self::I) -> Self::O {
31        (self.0)(i)
32    }
33}