Erase regions in New Abstract Consts #98499
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Some changes occured in const_evaluatable.rs cc @lcnr |
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can you add an assert here
rust/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
Lines 413 to 421 in 64eb9ab
that all regions from inside the abstract const are also erased, so something like assert_eq!(ct, self.tcx.erase_regions(ct));
then r=me
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Some changes occurred in const_evaluatable.rs cc @lcnr |
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@bors r+ rollup |
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📌 Commit 1e40200 has been approved by |
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Erase regions in New Abstract Consts When an abstract const is constructed, we previously included lifetimes in the set of substitutes, so it was not able to unify two abstract consts if their lifetimes did not match but the values did, despite the values not depending on the lifetimes. This caused code that should have compiled to not compile. Fixes rust-lang#98452 r? `@lcnr`
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Erase regions in New Abstract Consts When an abstract const is constructed, we previously included lifetimes in the set of substitutes, so it was not able to unify two abstract consts if their lifetimes did not match but the values did, despite the values not depending on the lifetimes. This caused code that should have compiled to not compile. Fixes rust-lang#98452 r? ``@lcnr``
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Rollup of 7 pull requests Successful merges: - rust-lang#98415 (Migrate some `rustc_borrowck` diagnostics to `SessionDiagnostic`) - rust-lang#98479 (Add `fetch_not` method on `AtomicBool`) - rust-lang#98499 (Erase regions in New Abstract Consts) - rust-lang#98516 (library: fix uefi va_list type definition) - rust-lang#98554 (Fix box with custom allocator in miri) - rust-lang#98607 (Clean up arg mismatch diagnostic, generalize tuple wrap suggestion) - rust-lang#98625 (emit Retag for compound types with reference fields) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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When an abstract const is constructed, we previously included lifetimes in the set of substitutes, so it was not able to unify two abstract consts if their lifetimes did not match but the values did, despite the values not depending on the lifetimes. This caused code that should have compiled to not compile.
Fixes #98452
r? @lcnr