minivec/
from.rs

1use crate::MiniVec;
2
3extern crate alloc;
4
5impl<'a, T> core::convert::From<&'a [T]> for MiniVec<T>
6where
7  T: Clone,
8{
9  fn from(s: &'a [T]) -> Self {
10    let mut v = MiniVec::with_capacity(s.len());
11    for x in s {
12      v.push(x.clone());
13    }
14
15    v
16  }
17}
18
19impl<'a, T> core::convert::From<&'a mut [T]> for MiniVec<T>
20where
21  T: Clone,
22{
23  fn from(s: &'a mut [T]) -> Self {
24    let mut v = MiniVec::with_capacity(s.len());
25    for x in s {
26      v.push(x.clone());
27    }
28
29    v
30  }
31}
32
33impl<'a> core::convert::From<&'a str> for MiniVec<u8> {
34  fn from(s: &'a str) -> Self {
35    let mut v = MiniVec::with_capacity(s.len());
36    unsafe {
37      let new_len = s.len();
38      core::ptr::copy_nonoverlapping(s.as_ptr(), v.as_mut_ptr(), new_len);
39      v.set_len(new_len);
40    }
41    v
42  }
43}
44
45impl<'a, T> core::convert::From<&'a MiniVec<T>> for alloc::borrow::Cow<'a, [T]>
46where
47  T: Clone,
48{
49  fn from(v: &'a MiniVec<T>) -> alloc::borrow::Cow<'a, [T]> {
50    alloc::borrow::Cow::Borrowed(v.as_slice())
51  }
52}
minivec/from.rs

minivec/
from.rs
