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//@ 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<Conn, U>: RunQueryDsl<Conn> {}
impl<T: Query> AsQuery for T {
type Query = Self;
}
impl<T> LimitDsl for T
where
T: Table,
T::Query: LimitDsl,
{
type Output = <T::Query as LimitDsl>::Output;
}
pub(crate) trait RunQueryDsl<Conn>: Sized {
fn first<U>(self, _conn: &Conn) -> U
where
Self: LimitDsl,
Self::Output: LoadQuery<Conn, U>,
{
// Overflow is caused by this function body
unimplemented!()
}
}
fn main() {}
|
