test that we do not support higher-ranked regions in opaque type inference #121386
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lcnr
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some rustc improvements i thought of while looking at the tests.
please either implement them in this PR or open separate issues for them.
separately: we should document somewhere (at least in the ATPIT stabilization report, cc @traviscross ), that higher ranked opaque types mentioning higher-ranked lifetimes are not supported
| LL | const FOO: Foo = Struct; | ||
| | ^^^^^^ | ||
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| error: concrete type differs from previous defining opaque type use |
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can you yeet this error if there's a {type error} in the expected found? 😁
lcnr
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| @@ -845,26 +845,27 @@ impl<'tcx> OpaqueHiddenType<'tcx> { | |||
| other: &Self, | |||
| opaque_def_id: LocalDefId, | |||
| tcx: TyCtxt<'tcx>, | |||
| ) -> DiagnosticBuilder<'tcx> { | |||
| ) -> Result<DiagnosticBuilder<'tcx>, ErrorGuaranteed> { | |||
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vibe: rename this method to fn build_mismatch_error or sth? because a method called report returing Ok(DiagnosticsBuilder) feels off to me
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…r=lcnr test that we do not support higher-ranked regions in opaque type inference We already do all the right checks in `check_opaque_type_parameter_valid`, and we have done so since at least 2 years. I collected the tests from rust-lang#116935 and rust-lang#100503 and added some more cc rust-lang#96146 r? `@lcnr`
jieyouxu
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Feb 22, 2024
| // Regression test for #97099. | ||
| // This was an ICE because `impl Sized` captures the lifetime 'a. | ||
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| // check-fail |
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@oli-obk Oli did you forgor to update these UI test directives to use //@?
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check-fail should be the default for these tests anyways, so we could remove the directives rather than use //@
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120598 (No need to `validate_alias_bound_self_from_param_env` in `assemble_alias_bound_candidates`) - rust-lang#121386 (test that we do not support higher-ranked regions in opaque type inference) - rust-lang#121393 (match lowering: Introduce a `TestCase` enum to replace most matching on `PatKind`) - rust-lang#121401 (Fix typo in serialized.rs) - rust-lang#121427 (Fix panic when compiling `Rocket`.) - rust-lang#121439 (Fix typo in metadata.rs doc comment) - rust-lang#121441 (`DefId` to `LocalDefId`) - rust-lang#121452 (Add new maintainers to nto-qnx.md) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#121386 - oli-obk:no_higher_ranked_opaques, r=lcnr test that we do not support higher-ranked regions in opaque type inference We already do all the right checks in `check_opaque_type_parameter_valid`, and we have done so since at least 2 years. I collected the tests from rust-lang#116935 and rust-lang#100503 and added some more cc rust-lang#96146 r? `@lcnr`
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We already do all the right checks in
check_opaque_type_parameter_valid, and we have done so since at least 2 years.I collected the tests from #116935 and #100503 and added some more
cc #96146
r? @lcnr