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
#[derive(Copy, Clone, Debug, PartialEq, Eq, Ord, PartialOrd, Hash)]
pub enum Action {
None,
VAlign,
Wrap,
Resize,
All,
}
impl Action {
#[inline]
pub fn is_ready(&self) -> bool {
*self == Action::None
}
}
pub struct OwningVecIter<T: Clone> {
v: Vec<T>,
i: usize,
}
impl<T: Clone> OwningVecIter<T> {
pub fn new(v: Vec<T>) -> Self {
let i = 0;
OwningVecIter { v, i }
}
}
impl<T: Clone> Iterator for OwningVecIter<T> {
type Item = T;
fn next(&mut self) -> Option<Self::Item> {
if self.i < self.v.len() {
let item = self.v[self.i].clone();
self.i += 1;
Some(item)
} else {
None
}
}
fn size_hint(&self) -> (usize, Option<usize>) {
let len = self.v.len() - self.i;
(len, Some(len))
}
}
impl<T: Clone> ExactSizeIterator for OwningVecIter<T> {}
impl<T: Clone> std::iter::FusedIterator for OwningVecIter<T> {}