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Diffstat (limited to '')
-rw-r--r-- | tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_ty_with_infer_1.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_ty_with_infer_1.rs b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_ty_with_infer_1.rs new file mode 100644 index 000000000..1e2484118 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_ty_with_infer_1.rs @@ -0,0 +1,30 @@ +// check-pass +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +// issue #107899 +// We end up relating `Const(ty: size_of<?0>, kind: Value(Branch([])))` with +// `Const(ty: size_of<T>, kind: Value(Branch([])))` which if you were to `==` +// the `ty` fields would return `false` and ICE. This test checks that we use +// actual semantic equality that takes into account aliases and infer vars. + +use std::mem::size_of; + +trait X<T> { + fn f(self); + fn g(self); +} + +struct Y; + +impl<T> X<T> for Y +where + [(); size_of::<T>()]: Sized, +{ + fn f(self) { + self.g(); + } + fn g(self) {} +} + +fn main() {} |