linux-kernel - Re: [PATCH v2 02/14] rust: str: introduce `BorrowFormatter`

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Message-ID: <aG5rTNGn_NbnCISe@google.com>
Date: Wed, 9 Jul 2025 13:14:52 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Andreas Hindborg <a.hindborg@...nel.org>
Cc: Boqun Feng <boqun.feng@...il.com>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, Jens Axboe <axboe@...nel.dk>, 
	linux-block@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 02/14] rust: str: introduce `BorrowFormatter`

On Tue, Jul 08, 2025 at 09:44:57PM +0200, Andreas Hindborg wrote:
> Add `BorrowFormatter`, a formatter that writes to an array or slice buffer.
> This formatter is backed by the existing `Formatter`.
> 
> Signed-off-by: Andreas Hindborg <a.hindborg@...nel.org>

I don't think we need a separate BorrowFormatter. We can instead add a
lifetime to Formatter and give it a safe constructor from a mutable
slice.

Alice