diff options
Diffstat (limited to 'src/test/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.rs')
-rw-r--r-- | src/test/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.rs b/src/test/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.rs new file mode 100644 index 000000000..6093fc70b --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.rs @@ -0,0 +1,22 @@ +#![feature(generic_const_exprs, generic_arg_infer)] +#![allow(incomplete_features)] + +// minimized repro for #105205 +// +// the `foo::<_, L>` call results in a `WellFormed(_)` obligation and a +// `ConstEvaluatable(Unevaluated(_ + 1 + L))` obligation. Attempting to fulfill the latter +// unifies the `_` with `Expr(L - 1)` from the paramenv which turns the `WellFormed` +// obligation into `WellFormed(Expr(L - 1))` + +fn foo<const N: usize, const M: usize>(_: [(); N + 1 + M]) {} + +fn ice<const L: usize>() +where + [(); (L - 1) + 1 + L]:, +{ + foo::<_, L>([(); L + 1 + L]); + //~^ ERROR: mismatched types + //~^^ ERROR: unconstrained generic constant +} + +fn main() {} |