Move error emitted by attrs #[rustc_symbol_name] and #[rustc_def_path] from codegen pass to check_attr.rs#152368
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Bryntet wants to merge 1 commit intorust-lang:mainfrom
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Move error emitted by attrs #[rustc_symbol_name] and #[rustc_def_path] from codegen pass to check_attr.rs#152368Bryntet wants to merge 1 commit intorust-lang:mainfrom
#[rustc_symbol_name] and #[rustc_def_path] from codegen pass to check_attr.rs#152368Bryntet wants to merge 1 commit intorust-lang:mainfrom
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Some changes occurred in compiler/rustc_passes/src/check_attr.rs |
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r? @davidtwco rustbot has assigned @davidtwco. Use Why was this reviewer chosen?The reviewer was selected based on:
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might be good to do a perf run? |
instead just check and emit this attribute error through `check_attr.rs`
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r? me |
JonathanBrouwer
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Feb 9, 2026
| // if the `rustc_attrs` feature is not enabled, then the | ||
| // attributes we are interested in cannot be present anyway, so | ||
| // skip the walk. | ||
| if !tcx.features().rustc_attrs() { |
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Because of this check there shouldn't be any perf difference, this will be false for any realistic crate
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Reminder, once the PR becomes ready for a review, use |
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☔ The latest upstream changes (presumably #152373) made this pull request unmergeable. Please resolve the merge conflicts. |
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Currently, to emit the errors, during codegen we iterate over all feasible targets that these attributes could be placed on, this PR changes it so that we just emit these errors in the
check_attrstep of attribute parsing, since this check is guaranteed to already iterate through all attributes, it should (I think), be a little bit faster to emit from there instead