ndarray/
argument_traits.rs

1use std::cell::Cell;
2use std::mem::MaybeUninit;
3
4use crate::math_cell::MathCell;
5
6/// A producer element that can be assigned to once
7pub trait AssignElem<T>
8{
9    /// Assign the value `input` to the element that self represents.
10    fn assign_elem(self, input: T);
11}
12
13/// Assignable element, simply `*self = input`.
14impl<'a, T> AssignElem<T> for &'a mut T
15{
16    fn assign_elem(self, input: T)
17    {
18        *self = input;
19    }
20}
21
22/// Assignable element, simply `self.set(input)`.
23impl<'a, T> AssignElem<T> for &'a Cell<T>
24{
25    fn assign_elem(self, input: T)
26    {
27        self.set(input);
28    }
29}
30
31/// Assignable element, simply `self.set(input)`.
32impl<'a, T> AssignElem<T> for &'a MathCell<T>
33{
34    fn assign_elem(self, input: T)
35    {
36        self.set(input);
37    }
38}
39
40/// Assignable element, the item in the MaybeUninit is overwritten (prior value, if any, is not
41/// read or dropped).
42impl<'a, T> AssignElem<T> for &'a mut MaybeUninit<T>
43{
44    fn assign_elem(self, input: T)
45    {
46        *self = MaybeUninit::new(input);
47    }
48}
ndarray/argument_traits.rs

ndarray/
argument_traits.rs
