sj/json/array_indexes/
inner.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
/*
==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--

SJ

Copyright (C) 2019-2024  Anonymous

There are several releases over multiple years,
they are listed as ranges, such as: "2019-2024".

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.

::--::--::--::--::--::--::--::--::--::--::--::--::--::--::--::--
*/

//! # Inner

use core::ops::{Index, RangeTo};

/// # Inner
#[derive(Debug)]
pub (super) enum Inner<'a, const N: usize> {
    Slice(&'a [usize]),
    Array([usize; N]),
}

impl<const N: usize> Index<RangeTo<usize>> for Inner<'_, N> {

    type Output = [usize];

    fn index(&self, index: RangeTo<usize>) -> &Self::Output {
        match self {
            Self::Slice(slice) => &slice[index],
            Self::Array(array) => &array[index],
        }
    }

}