bjoernager/rust
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Auto merge of #119101 - compiler-errors:outlives, r=lcnr

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Normalize region obligation in lexical region resolution with next-gen solver

This normalizes region obligations when we `resolve_regions`, since they may be unnormalized with deferred projection equality.

It's pretty hard to add tests that exercise this without also triggering MIR borrowck errors (because we don't normalize there yet). I've added one test with two revisions that should test that we both 1. normalize region obligations in the param env, and 2. normalize registered region obligations during lexical region resolution.
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bors 2024-01-30 19:22:04 +00:00
commit cb4d9a1902
25 changed files with 211 additions and 70 deletions
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2
compiler/rustc_trait_selection/src/traits/auto_trait.rs
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@ -179,7 +179,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
}
let outlives_env = OutlivesEnvironment::new(full_env);
infcx.process_registered_region_obligations(&outlives_env);
let _ = infcx.process_registered_region_obligations::<!>(&outlives_env, |ty, _| Ok(ty));
let region_data =
infcx.inner.borrow_mut().unwrap_region_constraints().region_constraint_data().clone();