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diags: Pass DiagArgMap instead of FluentArgs into format_diag_message - #153231

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rust-lang:mainfrom
JonathanBrouwer:move_diag_arg_map
Mar 1, 2026
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diags: Pass DiagArgMap instead of FluentArgs into format_diag_message#153231
rust-bors[bot] merged 3 commits into
rust-lang:mainfrom
JonathanBrouwer:move_diag_arg_map

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@JonathanBrouwerJonathanBrouwer commented Feb 28, 2026

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This PR no longer exposes FluentArgs outside of translation.rs, instead using the already existing DiagArgMap.
This is in preparation of a few upcoming PRs, as well as just making the code slightly nicer.

Will do a perf run because this technically calls to_fluent_args a few more times than previously, but not expecting this to be significant

@rustbotrustbot added A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. labels Feb 28, 2026
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@bors try @rust-timer queue

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rust-borsBot pushed a commit that referenced this pull request Feb 28, 2026
diags: Pass `DiagArgMap` instead of `FluentArgs` into `format_diag_message`
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@rustbotrustbot added the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Feb 28, 2026
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☀️ Try build successful (CI)
Build commit: af9f66e (af9f66e30b7aaff0099d07a9b180cd698bbd12ce, parent: ba1567989ee7774a1fb53aa680a8e4e8daa0f519)

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Finished benchmarking commit (af9f66e): comparison URL.

Overall result: ✅ improvements - no action needed

Benchmarking this pull request means it may be perf-sensitive – we'll automatically label it not fit for rolling up. You can override this, but we strongly advise not to, due to possible changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

meanrangecount
Regressions ❌
(primary)
--0
Regressions ❌
(secondary)
--0
Improvements ✅
(primary)
--0
Improvements ✅
(secondary)
-0.1%[-0.1%, -0.1%]1
All ❌✅ (primary)--0

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

Results (secondary -3.7%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

meanrangecount
Regressions ❌
(primary)
--0
Regressions ❌
(secondary)
--0
Improvements ✅
(primary)
--0
Improvements ✅
(secondary)
-3.7%[-3.7%, -3.7%]1
All ❌✅ (primary)--0

Binary size

Results (secondary -0.0%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

meanrangecount
Regressions ❌
(primary)
--0
Regressions ❌
(secondary)
--0
Improvements ✅
(primary)
--0
Improvements ✅
(secondary)
-0.0%[-0.1%, -0.0%]13
All ❌✅ (primary)--0

Bootstrap: 479.975s -> 484.497s (0.94%)
Artifact size: 395.63 MiB -> 397.50 MiB (0.47%)

@rustbotrustbot removed the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Feb 28, 2026
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r? @Kivooeo (or cc @lqd if you feel like stealing again :P)

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JonathanBrouwer marked this pull request as ready for review March 1, 2026 09:12
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rustc_errors::translation was changed

cc @davidtwco, @TaKO8Ki

rustc_error_messages was changed

cc @davidtwco, @TaKO8Ki

rustc_errors::annotate_snippet_emitter_writer was changed

cc @Muscraft

rustc_errors::emitter was changed

cc @Muscraft

@rustbotrustbot 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 Mar 1, 2026
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Kivooeo commented Mar 1, 2026

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r=me with adding small doc comment explaining this new structure type, i feel like it could be useful in future

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@bors r=Kivooeo rollup

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📌 Commit 01dbf41 has been approved by Kivooeo

It is now in the queue for this repository.

@rust-borsrust-borsBot 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 Mar 1, 2026
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lqd commented Mar 1, 2026

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Maybe there is a better name as well, maybe DiagArgs or something similar.

rust-borsBot pushed a commit that referenced this pull request Mar 1, 2026
…uwer
Rollup of 6 pull requests
Successful merges:
- #153130 (std: move `getpid` to `sys::process`)
- #152549 (Revert "resolve: Downgrade `ambiguous_glob_imports` to warn-by-default")
- #153231 (diags: Pass `DiagArgMap` instead of `FluentArgs` into `format_diag_message`)
- #153246 (Fix compile error in std::fs impl on VEXos target)
- #153255 (Recover feature lang_items for emscripten)
- #153257 (update my mailmap)
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rust-borsBot merged commit db167a8 into rust-lang:mainMar 1, 2026
11 checks passed
@rustbotrustbot added this to the 1.96.0 milestone Mar 1, 2026
rust-timer added a commit that referenced this pull request Mar 1, 2026
Rollup merge of #153231 - JonathanBrouwer:move_diag_arg_map, r=Kivooeo
diags: Pass `DiagArgMap` instead of `FluentArgs` into `format_diag_message`
This PR no longer exposes `FluentArgs` outside of `translation.rs`, instead using the already existing `DiagArgMap`.
This is in preparation of a few upcoming PRs, as well as just making the code slightly nicer.
Will do a perf run because this technically calls `to_fluent_args` a few more times than previously, but not expecting this to be significant
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A-translationArea: Translation infrastructure, and migrating existing diagnostics to SessionDiagnosticS-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.

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@JonathanBrouwer@rust-timer@rustbot@Kivooeo@lqd