linux-kernel - Re: [PATCH v2 03/12] rust: init: make guards in the init macros hygienic

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Message-ID: <20230720131648.3542031-1-aliceryhl@google.com>
Date:   Thu, 20 Jul 2023 13:16:48 +0000
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     benno.lossin@...ton.me
Cc:     alex.gaynor@...il.com, aliceryhl@...gle.com,
        bjorn3_gh@...tonmail.com, boqun.feng@...il.com, gary@...yguo.net,
        lina@...hilina.net, linux-kernel@...r.kernel.org, nmi@...aspace.dk,
        ojeda@...nel.org, rust-for-linux@...r.kernel.org,
        wedsonaf@...il.com
Subject: Re: [PATCH v2 03/12] rust: init: make guards in the init macros hygienic

Benno Lossin <benno.lossin@...ton.me> writes:
> Use hygienic identifiers for the guards instead of the field names. This
> makes the init macros feel more like normal struct initializers, since
> assigning identifiers with the name of a field does not create
> conflicts.
> Also change the internals of the guards, no need to make the `forget`
> function `unsafe`, since users cannot access the guards anyways. Now the
> guards are carried directly on the stack and have no extra `Cell<bool>`
> field that marks if they have been forgotten or not, instead they are
> just forgotten via `mem::forget`.
> 
> Suggested-by: Asahi Lina <lina@...hilina.net>
> Signed-off-by: Benno Lossin <benno.lossin@...ton.me>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>