microstack 0.0.7

The simplest and the fastest implementation of a fixed-size stack on stack
Documentation 
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
50
51
52
53
54
55

// Copyright (c) 2023 Yegor Bugayenko
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

use crate::Stack;
use std::fmt;
use std::fmt::{Debug, Display, Formatter};

impl<V: Display + Copy, const N: usize> Display for Stack<V, N> {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        <&Self as Debug>::fmt(&self, f)
    }
}

impl<V: Display + Copy, const N: usize> Debug for Stack<V, N> {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        let mut parts = vec![];
        for v in self.iter() {
            parts.push(format!("{v}"));
        }
        f.write_str(format!("[{}]", parts.join(", ").as_str()).as_str())
    }
}

#[test]
fn debugs_stack() {
    let mut s: Stack<&str, 10> = Stack::new();
    unsafe { s.push_unchecked("one") };
    unsafe { s.push_unchecked("two") };
    assert_eq!("[one, two]", format!("{:?}", s));
}

#[test]
fn displays_stack() {
    let mut s: Stack<&str, 10> = Stack::new();
    unsafe { s.push_unchecked("one") };
    unsafe { s.push_unchecked("two") };
    assert_eq!("[one, two]", format!("{}", s));
}