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Improve pretty-printing of braces #140312

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nnethercote
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@nnethercote nnethercote commented Apr 25, 2025 •
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rustbot commented Apr 25, 2025

Some changes occurred in compiler/rustc_builtin_macros/src/autodiff.rs

cc @ZuseZ4
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 25, 2025
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This is a pretty small change to pretty-printing output. In the past we've done crater runs for such changes. We could do one here too, if you think it's worthwhile.
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Add Spacing to DelimArgs to improve pretty-printing. Most notably, this means use statements are printed like use a::{b, c} instead of use a::{ b, c }.

This is very confusing, use items do no use DelimArgs, which are only used for macro invocations/definitions, so why are there changes in them?
@petrochenkov petrochenkov added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 28, 2025
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I addressed the comments.

@rustbot ready
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Apr 29, 2025
@nnethercote
Improve pretty-printing of braces.
99f6b63 
Most notably, the `FIXME` for suboptimal printing of `use` groups in
`tests/ui/macros/stringify.rs` is fixed. And all other test output
changes result in pretty printed output being closer to the original
formatting in the source code.
@nnethercote nnethercote changed the title Improve DelimArgs pretty-printing Apr 29, 2025
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@bors r+
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bors commented Apr 29, 2025

📌 Commit 99f6b63 has been approved by petrochenkov

It is now in the queue for this repository.
@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 29, 2025
Zalathar added a commit to Zalathar/rust that referenced this pull request Apr 29, 2025
@Zalathar
Rollup merge of rust-lang#140312 - nnethercote:DelimArgs-spacing, r=p…
2deae90 
…etrochenkov

Improve pretty-printing of braces

r? `@petrochenkov`
@Zalathar Zalathar mentioned this pull request Apr 29, 2025
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 29, 2025
@bors
Auto merge of rust-lang#140444 - Zalathar:rollup-pbefd89, r=Zalathar
d635125 
Rollup of 6 pull requests

Successful merges:

 - rust-lang#139883 (crashes: more tests)
 - rust-lang#140312 (Improve pretty-printing of braces)
 - rust-lang#140392 (compiletest: Remove the libtest-based executor and its dependency)
 - rust-lang#140395 (organize and extend forbidden target feature tests)
 - rust-lang#140422 (unwind: bump `unwinding` dependency to 0.2.6)
 - rust-lang#140432 (Update documentation for `fn target_config`)

r? `@ghost`
`@rustbot` modify labels: rollup
tgross35 added a commit to tgross35/rust that referenced this pull request Apr 29, 2025
@tgross35
Rollup merge of rust-lang#140312 - nnethercote:DelimArgs-spacing, r=p…
3e26eb9 
…etrochenkov

Improve pretty-printing of braces

r? ``@petrochenkov``
@tgross35 tgross35 mentioned this pull request Apr 29, 2025
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 29, 2025
@bors
Auto merge of rust-lang#140475 - tgross35:rollup-mdp98bb, r=tgross35
7405ad3 
Rollup of 8 pull requests

Successful merges:

 - rust-lang#134232 (Share the naked asm impl between cg_ssa and cg_clif)
 - rust-lang#140312 (Improve pretty-printing of braces)
 - rust-lang#140437 (enable msa feature for mips in codegen tests)
 - rust-lang#140438 (Add `rust.debug-assertions-tools` option)
 - rust-lang#140439 (miri: algebraic intrinsics: bring back float non-determinism)
 - rust-lang#140445 (Treat ManuallyDrop as ~const Destruct)
 - rust-lang#140446 (chore: fix some tests)
 - rust-lang#140448 (Rename `rustc_query_append!` to `rustc_with_all_queries!`)

r? `@ghost`
`@rustbot` modify labels: rollup
Zalathar added a commit to Zalathar/rust that referenced this pull request Apr 30, 2025
@Zalathar
Rollup merge of rust-lang#140312 - nnethercote:DelimArgs-spacing, r=p…
e187c59 
…etrochenkov

Improve pretty-printing of braces

r? ```@petrochenkov```
@Zalathar Zalathar mentioned this pull request Apr 30, 2025
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 30, 2025
@bors
Auto merge of rust-lang#140499 - Zalathar:rollup-8qpbuw0, r=Zalathar
c9d3ed8 
Rollup of 12 pull requests

Successful merges:

 - rust-lang#136160 (Remove backticks from `ShouldPanic::YesWithMessage`'s `TrFailedMsg`)
 - rust-lang#138087 (Initial implementation of `core_float_math`)
 - rust-lang#139059 (uses_power_alignment: wording tweaks)
 - rust-lang#139192 (mention provenance in the pointer::wrapping_offset docs)
 - rust-lang#140312 (Improve pretty-printing of braces)
 - rust-lang#140404 (rm `TypeVistable` impls for `Canonical`)
 - rust-lang#140437 (enable msa feature for mips in codegen tests)
 - rust-lang#140438 (Add `rust.debug-assertions-tools` option)
 - rust-lang#140439 (miri: algebraic intrinsics: bring back float non-determinism)
 - rust-lang#140445 (Treat ManuallyDrop as ~const Destruct)
 - rust-lang#140446 (chore: fix some tests)
 - rust-lang#140448 (Rename `rustc_query_append!` to `rustc_with_all_queries!`)

Failed merges:

 - rust-lang#140456 (Fix test simd/extract-insert-dyn on s390x)

r? `@ghost`
`@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Apr 30, 2025
@matthiaskrgr
Rollup merge of rust-lang#140312 - nnethercote:DelimArgs-spacing, r=p…
56e01fe 
…etrochenkov

Improve pretty-printing of braces

r? ````@petrochenkov````
@matthiaskrgr matthiaskrgr mentioned this pull request Apr 30, 2025
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