Re: [PATCH 2/2] change blanket impls for `[Pin]Init` and add one for `Result<T, E>`

From: Danilo Krummrich
Date: Tue Jun 10 2025 - 09:45:28 EST


On 5/29/25 10:10 AM, Benno Lossin wrote:
Remove the error from the blanket implementations `impl<T, E> Init<T, E>
for T` (and also for `PinInit`). Add implementations for `Result<T, E>`.

This allows one to easily construct (un)conditional failing
initializers. It also improves the compatibility with APIs that do not
use pin-init, because users can supply a `Result<T, E>` to a function
taking an `impl PinInit<T, E>`.

Suggested-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Link: https://github.com/Rust-for-Linux/pin-init/pull/62/commits/58612514b256c6f4a4a0718be25298410e67387a
[ Also fix a compile error in block. - Benno ]
Signed-off-by: Benno Lossin <lossin@xxxxxxxxxx>
---

This patch is also needed by Danilo for initializing `Devres`
ergonomically.

For this purpose, can you please provide me with a signed tag for this one
please? Otherwise I can also add the explicit `Infallible` generics in a few
places until next cycle.