diff --git a/src/test/ui/consts/issue-68264-overflow.rs b/src/test/ui/consts/issue-68264-overflow.rs new file mode 100644 index 0000000000000..8f21e0648d4c7 --- /dev/null +++ b/src/test/ui/consts/issue-68264-overflow.rs @@ -0,0 +1,43 @@ +// check-pass +// compile-flags: --emit=mir,link +// Regression test for issue #68264 +// Checks that we don't encounter overflow +// when running const-prop on functions with +// complicated bounds +pub trait Query {} + +pub trait AsQuery { + type Query: Query; +} +pub trait Table: AsQuery + Sized {} + +pub trait LimitDsl { + type Output; +} + +pub(crate) trait LoadQuery: RunQueryDsl {} + +impl AsQuery for T { + type Query = Self; +} + +impl LimitDsl for T +where + T: Table, + T::Query: LimitDsl, +{ + type Output = ::Output; +} + +pub(crate) trait RunQueryDsl: Sized { + fn first(self, _conn: &Conn) -> U + where + Self: LimitDsl, + Self::Output: LoadQuery, + { + // Overflow is caused by this function body + unimplemented!() + } +} + +fn main() {}