tinyvec 0.1.0

Just, really the littlest Vec you could need. So smol.
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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123

#![allow(bad_style)]

use tinyvec::*;

#[test]
fn test_a_vec() {
  let mut expected: ArrayishVec<[i32; 4]> = Default::default();
  expected.push(1);
  expected.push(2);
  expected.push(3);

  let actual = arr_vec!([i32; 4], 1, 2, 3);

  assert_eq!(expected, actual);
}

#[test]
fn ArrayishVec_push_pop() {
  let mut av: ArrayishVec<[i32; 4]> = Default::default();
  assert_eq!(av.len(), 0);
  assert_eq!(av.pop(), None);

  av.push(10_i32);
  assert_eq!(av.len(), 1);
  assert_eq!(av[0], 10);
  assert_eq!(av.pop(), Some(10));
  assert_eq!(av.len(), 0);
  assert_eq!(av.pop(), None);

  av.push(10);
  av.push(11);
  av.push(12);
  av.push(13);
  assert_eq!(av[0], 10);
  assert_eq!(av[1], 11);
  assert_eq!(av[2], 12);
  assert_eq!(av[3], 13);
  assert_eq!(av.len(), 4);
  assert_eq!(av.pop(), Some(13));
  assert_eq!(av.len(), 3);
  assert_eq!(av.pop(), Some(12));
  assert_eq!(av.len(), 2);
  assert_eq!(av.pop(), Some(11));
  assert_eq!(av.len(), 1);
  assert_eq!(av.pop(), Some(10));
  assert_eq!(av.len(), 0);
  assert_eq!(av.pop(), None);
}

#[test]
#[should_panic]
fn ArrayishVec_push_overflow() {
  let mut av: ArrayishVec<[i32; 0]> = Default::default();
  av.push(7);
}

#[test]
fn ArrayishVec_formatting() {
  // check that we get the comma placement correct

  let mut av: ArrayishVec<[i32; 4]> = Default::default();
  assert_eq!(format!("{:?}", av), "[]");
  av.push(10);
  assert_eq!(format!("{:?}", av), "[10]");
  av.push(11);
  assert_eq!(format!("{:?}", av), "[10, 11]");
  av.push(12);
  assert_eq!(format!("{:?}", av), "[10, 11, 12]");

  // below here just asserts that the impls exist.

  //
  let av: ArrayishVec<[i32; 4]> = Default::default();
  assert_eq!(format!("{:b}", av), "[]");
  assert_eq!(format!("{:o}", av), "[]");
  assert_eq!(format!("{:x}", av), "[]");
  assert_eq!(format!("{:X}", av), "[]");
  assert_eq!(format!("{}", av), "[]");
  //
  let av: ArrayishVec<[f32; 4]> = Default::default();
  assert_eq!(format!("{:e}", av), "[]");
  assert_eq!(format!("{:E}", av), "[]");
  //
  let av: ArrayishVec<[&'static str; 4]> = Default::default();
  assert_eq!(format!("{:p}", av), "[]");
}

#[test]
fn ArrayishVec_iteration() {
  let av = arr_vec!([i32; 4], 10, 11, 12, 13);

  let mut i = av.into_iter();
  assert_eq!(i.next(), Some(10));
  assert_eq!(i.next(), Some(11));
  assert_eq!(i.next(), Some(12));
  assert_eq!(i.next(), Some(13));
  assert_eq!(i.next(), None);

  let av = arr_vec!([i32; 4], 10, 11, 12, 13);

  let av2: ArrayishVec<[i32; 4]> = av.clone().into_iter().collect();
  assert_eq!(av, av2);
}

#[test]
fn ArrayishVec_append() {
  let mut av = arr_vec!([i32; 8], 1, 2, 3);
  let mut av2 = arr_vec!([i32; 8], 4, 5, 6);
  //
  av.append(&mut av2);
  assert_eq!(av.as_slice(), &[1_i32, 2, 3, 4, 5, 6]);
  assert_eq!(av2.as_slice(), &[]);
}

#[test]
fn ArrayishVec_remove() {
  let mut av: ArrayishVec<[i32; 10]> = Default::default();
  av.push(1);
  av.push(2);
  av.push(3);
  assert_eq!(av.remove(1), 2);
  assert_eq!(&av[..], &[1, 3][..]);
}