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Compute layout with spans for better cycle errors in coroutines - #117858
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Nov 13, 2023
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| let (awaitee_pat, awaitee_pat_hid) = | ||
| self.pat_ident_binding_mode(span, awaitee_ident, hir::BindingAnnotation::MUT); | ||
| let (awaitee_pat, awaitee_pat_hid) = self.pat_ident_binding_mode( | ||
| gen_future_span, |
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we use the whole expression span here rather than the span of the .await, when pointing to the local that we use to store the IntoFuture::into_future result. That's because the user probably cares more about the whole async call, not just the fact that the future was awaited.
This matters a lot more when pointing out recursive calls in #117703, but it does make the span a bit better here too.
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lcnr
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Nov 13, 2023
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bors
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Nov 13, 2023
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Rollup of 5 pull requests Successful merges: - rust-lang#117737 (Remove `-Zkeep-hygiene-data`.) - rust-lang#117830 (Small improvements in object lifetime default code) - rust-lang#117858 (Compute layout with spans for better cycle errors in coroutines) - rust-lang#117863 (Remove some unused stuff from `rustc_index`) - rust-lang#117872 (Cranelift isn't available on non-nightly channels) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#117858 - compiler-errors:span, r=lcnr Compute layout with spans for better cycle errors in coroutines Split out from rust-lang#117703, this PR at least gives us a nicer span to point at when we hit a cycle error in coroutine layout cycles.
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Split out from #117703, this PR at least gives us a nicer span to point at when we hit a cycle error in coroutine layout cycles.