diff options
| -rw-r--r-- | compiler/rustc_hir_analysis/src/collect/predicates_of.rs | 11 | ||||
| -rw-r--r-- | tests/ui/traits/const-traits/dont-ice-on-const-pred-for-bounds.rs | 22 |
2 files changed, 31 insertions, 2 deletions
diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index ca2597e79fd..1a6c0a93436 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -711,12 +711,19 @@ pub(super) fn assert_only_contains_predicates_from<'tcx>( `{filter:?}` implied bounds: {clause:?}" ); } + ty::ClauseKind::HostEffect(host_effect_predicate) => { + assert_eq!( + host_effect_predicate.self_ty(), + ty, + "expected `Self` predicate when computing \ + `{filter:?}` implied bounds: {clause:?}" + ); + } ty::ClauseKind::RegionOutlives(_) | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) - | ty::ClauseKind::ConstEvaluatable(_) - | ty::ClauseKind::HostEffect(..) => { + | ty::ClauseKind::ConstEvaluatable(_) => { bug!( "unexpected non-`Self` predicate when computing \ `{filter:?}` implied bounds: {clause:?}" diff --git a/tests/ui/traits/const-traits/dont-ice-on-const-pred-for-bounds.rs b/tests/ui/traits/const-traits/dont-ice-on-const-pred-for-bounds.rs new file mode 100644 index 00000000000..2295c2c3857 --- /dev/null +++ b/tests/ui/traits/const-traits/dont-ice-on-const-pred-for-bounds.rs @@ -0,0 +1,22 @@ +// Regression test for <https://github.com/rust-lang/rust/issues/133526>. + +// Ensures we don't ICE when we encounter a `HostEffectPredicate` when computing +// the "item super predicates" for `Assoc`. + +//@ compile-flags: -Znext-solver +//@ check-pass + +#![feature(const_trait_impl)] + +#[const_trait] +trait Trait { + type Assoc: const Trait; +} + +const fn needs_trait<T: ~const Trait>() {} + +fn test<T: Trait>() { + const { needs_trait::<T::Assoc>() }; +} + +fn main() {} |