2024-04-14 13:21:53

by dev

[permalink] [raw]
Subject: [PATCH] rust: update `dbg!()` to format column number

In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
number. The reason cited was usage of a few characters worth of
horizontal space while allowing direct jumps to the source location. [1]

Link: https://github.com/rust-lang/rust/pull/114962 [1]
Link: https://github.com/Rust-for-Linux/linux/issues/1065

Signed-off-by: Raghav Narang <[email protected]>
---
Branch rust-next

rust/kernel/std_vendor.rs | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/rust/kernel/std_vendor.rs b/rust/kernel/std_vendor.rs
index 388d6a514..39679a960 100644
--- a/rust/kernel/std_vendor.rs
+++ b/rust/kernel/std_vendor.rs
@@ -146,15 +146,16 @@ macro_rules! dbg {
// `$val` expression could be a block (`{ .. }`), in which case the `pr_info!`
// will be malformed.
() => {
- $crate::pr_info!("[{}:{}]\n", ::core::file!(), ::core::line!())
+ $crate::pr_info!("[{}:{}:{}]\n", ::core::file!(), ::core::line!(), ::core::column!())
};
($val:expr $(,)?) => {
// Use of `match` here is intentional because it affects the lifetimes
// of temporaries - https://stackoverflow.com/a/48732525/1063961
match $val {
tmp => {
- $crate::pr_info!("[{}:{}] {} = {:#?}\n",
- ::core::file!(), ::core::line!(), ::core::stringify!($val), &tmp);
+ $crate::pr_info!("[{}:{}:{}] {} = {:#?}\n",
+ ::core::file!(), ::core::line!(), ::core::column!(),
+ ::core::stringify!($val), &tmp);
tmp
}
}

base-commit: 8db31d3f3bd5dbc8cf3a22bba04b4b4add7f984e
--
2.44.0




2024-04-16 06:01:25

by Trevor Gross

[permalink] [raw]
Subject: Re: [PATCH] rust: update `dbg!()` to format column number

On Sun, Apr 14, 2024 at 9:31 AM <[email protected]> wrote:
>
> In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
> number. The reason cited was usage of a few characters worth of
> horizontal space while allowing direct jumps to the source location. [1]
>
> Link: https://github.com/rust-lang/rust/pull/114962 [1]
> Link: https://github.com/Rust-for-Linux/linux/issues/1065

The second link could be "Fixes: ..." (but whoever picks this up can
probably do that)

> Signed-off-by: Raghav Narang <[email protected]>

Reviewed-by: Trevor Gross <[email protected]>

2024-04-16 09:36:01

by Miguel Ojeda

[permalink] [raw]
Subject: Re: [PATCH] rust: update `dbg!()` to format column number

On Tue, Apr 16, 2024 at 7:58 AM Trevor Gross <[email protected]> wrote:
>
> The second link could be "Fixes: ..." (but whoever picks this up can
> probably do that)

`Fixes:` references a commit, not a URL. I think you meant `Closes:`,
but that one in turn is meant for bug fixes, which does not really fit
either. That is why I suggested `Link:` in the issue instead.

> Reviewed-by: Trevor Gross <[email protected]>

Thanks!

Cheers,
Miguel

2024-04-17 14:19:30

by Gary Guo

[permalink] [raw]
Subject: Re: [PATCH] rust: update `dbg!()` to format column number

On Sun, 14 Apr 2024 18:49:28 +0530
<[email protected]> wrote:

> In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
> number. The reason cited was usage of a few characters worth of
> horizontal space while allowing direct jumps to the source location. [1]
>
> Link: https://github.com/rust-lang/rust/pull/114962 [1]
> Link: https://github.com/Rust-for-Linux/linux/issues/1065
>
> Signed-off-by: Raghav Narang <[email protected]>

Reviewed-by: Gary Guo <[email protected]>

> ---
> Branch rust-next
>
> rust/kernel/std_vendor.rs | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/rust/kernel/std_vendor.rs b/rust/kernel/std_vendor.rs
> index 388d6a514..39679a960 100644
> --- a/rust/kernel/std_vendor.rs
> +++ b/rust/kernel/std_vendor.rs
> @@ -146,15 +146,16 @@ macro_rules! dbg {
> // `$val` expression could be a block (`{ .. }`), in which case the `pr_info!`
> // will be malformed.
> () => {
> - $crate::pr_info!("[{}:{}]\n", ::core::file!(), ::core::line!())
> + $crate::pr_info!("[{}:{}:{}]\n", ::core::file!(), ::core::line!(), ::core::column!())
> };
> ($val:expr $(,)?) => {
> // Use of `match` here is intentional because it affects the lifetimes
> // of temporaries - https://stackoverflow.com/a/48732525/1063961
> match $val {
> tmp => {
> - $crate::pr_info!("[{}:{}] {} = {:#?}\n",
> - ::core::file!(), ::core::line!(), ::core::stringify!($val), &tmp);
> + $crate::pr_info!("[{}:{}:{}] {} = {:#?}\n",
> + ::core::file!(), ::core::line!(), ::core::column!(),
> + ::core::stringify!($val), &tmp);
> tmp
> }
> }
>
> base-commit: 8db31d3f3bd5dbc8cf3a22bba04b4b4add7f984e


2024-05-05 22:30:11

by Miguel Ojeda

[permalink] [raw]
Subject: Re: [PATCH] rust: update `dbg!()` to format column number

On Sun, Apr 14, 2024 at 3:21 PM <[email protected]> wrote:
>
> In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
> number. The reason cited was usage of a few characters worth of
> horizontal space while allowing direct jumps to the source location. [1]
>
> Link: https://github.com/rust-lang/rust/pull/114962 [1]
> Link: https://github.com/Rust-for-Linux/linux/issues/1065
>
> Signed-off-by: Raghav Narang <[email protected]>

The commit author was:

[email protected] <[email protected]>

and I fixed it to:

Raghav Narang <[email protected]>

i.e. with the name from the Signed-off-by line. If this is not
correct, please let me know!

[ Fixed commit author name and removed spurious newline in message. - Miguel ]

Applied to `rust-next` -- thanks everyone!

Cheers,
Miguel