There should be an impl<T> AsMut<[T]> for Vec<T>.

[dwrensha]

In GJ I have this trait like this:

pub trait AsyncRead: 'static {
    fn try_read<T>(self, buf: T, min_bytes: usize) -> Promise<(Self, T, usize), Error<(Self, T)>> where T: DerefMut<Target=[u8]>, Self: Sized;
}

I'd like to switch the bound on T to be T: AsMut<[u8]>, but then I can no longer use a bare Vec<u8> for T, because there is currently no impl<T> AsMut<[T]> for Vec<T>.

It seems to me that such an impl ought to exist, especially because impl<T> AsRef<[T]> for Vec<T> already exists.

[bluss]

Yes, and Box<[T]>.

[bluss]

Since it landed now, it should appear first in Rust 1.5 (and will be stable).

[dwrensha]

Thank you!