Clean up some lifetimes in rustc_pattern_analysis#119307
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bors merged 6 commits intorust-lang:masterfrom Dec 26, 2023
Merged
Clean up some lifetimes in rustc_pattern_analysis#119307bors merged 6 commits intorust-lang:masterfrom
rustc_pattern_analysis#119307bors merged 6 commits intorust-lang:masterfrom
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Some changes might have occurred in exhaustiveness checking cc @Nadrieril |
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Some changes might have occurred in exhaustiveness checking cc @Nadrieril Some changes occurred in cc @BoxyUwU |
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Dec 26, 2023
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| struct MatchVisitor<'thir, 'p, 'tcx> { | ||
| struct MatchVisitor<'p, 'tcx> { |
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We're very lucky that 'thir is covariant here -- that means that we can shorten it to 'p, which is the lifetime of our pattern interner.
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Amazing :D I'm not sure how I ended up concluding that a separate lifetime was necessary but I don't mind being wrong. @bors r+ |
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…mpiler-errors Rollup of 5 pull requests Successful merges: - rust-lang#119235 (Add missing feature gate for sanitizer CFI cfgs) - rust-lang#119240 (Make some non-diagnostic-affecting `QPath::LangItem` into regular `QPath`s) - rust-lang#119297 (Pass DeadItem and lint as consistent group in dead-code.) - rust-lang#119307 (Clean up some lifetimes in `rustc_pattern_analysis`) - rust-lang#119323 (add test for coercing never to infinite type) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#119307 - compiler-errors:pat-lifetimes, r=Nadrieril Clean up some lifetimes in `rustc_pattern_analysis` This PR removes some redundant lifetimes. I figured out that we were shortening the lifetime of an arena-allocated `&'p DeconstructedPat<'p>` to `'a DeconstructedPat<'p>`, which forced us to carry both lifetimes when we could otherwise carry just one. This PR also removes and elides some unnecessary lifetimes. I also cherry-picked 0292eb9, and then simplified more lifetimes in `MatchVisitor`, which should make rust-lang#119233 a very simple PR! r? Nadrieril
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This PR removes some redundant lifetimes. I figured out that we were shortening the lifetime of an arena-allocated
&'p DeconstructedPat<'p>to'a DeconstructedPat<'p>, which forced us to carry both lifetimes when we could otherwise carry just one.This PR also removes and elides some unnecessary lifetimes.
I also cherry-picked 0292eb9, and then simplified more lifetimes in
MatchVisitor, which should make #119233 a very simple PR!r? Nadrieril