run_git/
flattened.rs

1/// Create a new vector that contains owned versions of the elements
2/// of all vectors/slices. Comes in two variants, into* consuming the
3/// input, and one using ToOwned instead.
4
5pub trait IntoFlattened<T> {
6    fn into_flattened(self) -> Vec<T>;
7}
8
9impl<T> IntoFlattened<T> for Vec<Vec<T>> {
10    fn into_flattened(self) -> Vec<T> {
11        let mut output = Vec::new();
12        for mut vec in self {
13            output.append(&mut vec);
14        }
15        output
16    }
17}
18
19pub trait Flattened<T: ToOwned<Owned = U>, U> {
20    fn flattened(self) -> Vec<U>;
21}
22
23impl<T: ToOwned<Owned = U>, U, V: AsRef<[T]>> Flattened<T, U> for &[V] {
24    fn flattened(self) -> Vec<U> {
25        let mut output: Vec<U> = Vec::new();
26        for v in self {
27            for item in v.as_ref() {
28                output.push(item.to_owned());
29            }
30        }
31        output
32    }
33}
run_git/flattened.rs

run_git/
flattened.rs
