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inline format!() args up to and including rustc_middle (2)#114068

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Jul 30, 2023
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inline format!() args up to and including rustc_middle (2)#114068
bors merged 1 commit intorust-lang:masterfrom
matthiaskrgr:fmt_args_rustc_1

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@matthiaskrgr matthiaskrgr commented Jul 25, 2023

@rustbot rustbot added A-query-system Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic 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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Jul 25, 2023
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rustbot commented Jul 25, 2023

rustc_error_messages was changed

cc @davidtwco, @compiler-errors, @JohnTitor, @TaKO8Ki

Some changes occurred to the CTFE / Miri engine

cc @rust-lang/miri

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

@matthiaskrgr matthiaskrgr changed the title inline formt!() args up to and including rustc_middle inline format!() args up to and including rustc_middle Jul 25, 2023
@matthiaskrgr matthiaskrgr changed the title inline format!() args up to and including rustc_middle inline format!() args up to and including rustc_middle (2) Jul 25, 2023
WaffleLapkin
WaffleLapkin requested changes Jul 26, 2023
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compiler/rustc_builtin_macros/src/asm.rs Outdated
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Those two are probably best reverted (so as to not to be confused with {{idx}})

compiler/rustc_builtin_macros/src/format_foreign.rs Outdated
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Same deal here, revert those please.

compiler/rustc_expand/src/mbe/macro_parser.rs Outdated
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Suggested change
n => format!("built-in NTs {} or {n} other option{s}.", nts, s = pluralize!(n)),
n => format!("built-in NTs {nts} or {n} other option{s}.", s = pluralize!(n)),

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WaffleLapkin commented Jul 26, 2023

Also, just a note: @matthiaskrgr please, don't include tags (@username) in commits (I get a notification every time you force push).

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matthiaskrgr commented Jul 26, 2023

Oh crap, sorry, I guess I can force-push them out and that would resolve the issue?

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WaffleLapkin commented Jul 26, 2023

It should resolve the issue, yes.

@WaffleLapkin WaffleLapkin 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 Jul 27, 2023
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bors commented Jul 27, 2023

☔ The latest upstream changes (presumably #113281) made this pull request unmergeable. Please resolve the merge conflicts.

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matthiaskrgr commented Jul 30, 2023

@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 Jul 30, 2023
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r=me with commit message typo fixed

formt!()

@WaffleLapkin WaffleLapkin 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 Jul 30, 2023
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matthiaskrgr commented Jul 30, 2023

😅
@bors r=WaffleLapkin

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bors commented Jul 30, 2023

📌 Commit 2381546 has been approved by WaffleLapkin

It is now in the queue for this repository.

@bors bors removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jul 30, 2023
@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 30, 2023
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NobodyXu commented Jul 30, 2023

I'm not familiar with rustc, but I wonder if inlining format! args would allow it to replace the formatting with a constant string when all arguments are known at compile-time, like format_args! inline optimization.

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workingjubilee commented Jul 30, 2023

  1. hypothetically
  2. be careful not to confuse inlining, the optimization, with implicit named argument capture in format_args!, which is sometimes referred to as "inline format_args!"

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WaffleLapkin commented Jul 30, 2023

@NobodyXu format!("blah {}", x) → format!("blah {x}") is purely syntactic transformation, the semantics don't change. It neither helps nor makes it harder to do optimizations.

Moreover format! also uses format_args! under the hood, so optimizations which inline constants also benefit it.

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NobodyXu commented Jul 30, 2023

Thank you for the explanation!

bors added a commit to rust-lang-ci/rust that referenced this pull request Jul 30, 2023
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Auto merge of rust-lang#114250 - matthiaskrgr:rollup-0r0dhrr, r=matth…
89acdae 
…iaskrgr

Rollup of 6 pull requests

Successful merges:

 - rust-lang#110056 (Fix the example in document for WaitTimeoutResult::timed_out)
 - rust-lang#112655 (Mark `map_or` as `#[must_use]`)
 - rust-lang#114018 (Make `--error-format human-annotate-rs` handle multiple files)
 - rust-lang#114068 (inline format!() args up to and including rustc_middle (2))
 - rust-lang#114223 (Documentation: Fix Stilted Language in Vec->Indexing)
 - rust-lang#114227 (Add tidy check for stray rustfix files)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit a964f94 into rust-lang:master Jul 30, 2023
@rustbot rustbot added this to the 1.73.0 milestone Jul 30, 2023
@lcnr lcnr removed the WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) label Aug 4, 2023
@matthiaskrgr matthiaskrgr deleted the fmt_args_rustc_1 branch January 25, 2025 09:12
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A-query-system Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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