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use std::mem::ManuallyDrop;
trait Tr1 { type As1: Copy; }
trait Tr2 { type As2: Copy; }
struct S1;
#[derive(Copy, Clone)]
struct S2;
impl Tr1 for S1 { type As1 = S2; }
trait _Tr3 {
type A: Iterator<Item: Copy>;
//~^ ERROR associated type bounds are unstable
//~| ERROR the trait bound `<<Self as _Tr3>::A as Iterator>::Item: Copy` is not satisfied
type B: Iterator<Item: 'static>;
//~^ ERROR associated type bounds are unstable
}
struct _St1<T: Tr1<As1: Tr2>> {
//~^ ERROR associated type bounds are unstable
outest: T,
outer: T::As1,
inner: <T::As1 as Tr2>::As2,
}
enum _En1<T: Tr1<As1: Tr2>> {
//~^ ERROR associated type bounds are unstable
Outest(T),
Outer(T::As1),
Inner(<T::As1 as Tr2>::As2),
}
union _Un1<T: Tr1<As1: Tr2>> {
//~^ ERROR associated type bounds are unstable
outest: ManuallyDrop<T>,
outer: ManuallyDrop<T::As1>,
inner: ManuallyDrop<<T::As1 as Tr2>::As2>,
}
type _TaWhere1<T> where T: Iterator<Item: Copy> = T;
//~^ ERROR associated type bounds are unstable
fn _apit(_: impl Tr1<As1: Copy>) {}
//~^ ERROR associated type bounds are unstable
fn _apit_dyn(_: &dyn Tr1<As1: Copy>) {}
//~^ ERROR associated type bounds are unstable
fn _rpit() -> impl Tr1<As1: Copy> { S1 }
//~^ ERROR associated type bounds are unstable
fn _rpit_dyn() -> Box<dyn Tr1<As1: Copy>> { Box::new(S1) }
//~^ ERROR associated type bounds are unstable
const _cdef: impl Tr1<As1: Copy> = S1;
//~^ ERROR associated type bounds are unstable
//~| ERROR `impl Trait` only allowed in function and inherent method return types
// FIXME: uncomment when `impl_trait_in_bindings` feature is fixed.
// const _cdef_dyn: &dyn Tr1<As1: Copy> = &S1;
static _sdef: impl Tr1<As1: Copy> = S1;
//~^ ERROR associated type bounds are unstable
//~| ERROR `impl Trait` only allowed in function and inherent method return types
// FIXME: uncomment when `impl_trait_in_bindings` feature is fixed.
// static _sdef_dyn: &dyn Tr1<As1: Copy> = &S1;
fn main() {
let _: impl Tr1<As1: Copy> = S1;
//~^ ERROR associated type bounds are unstable
//~| ERROR `impl Trait` only allowed in function and inherent method return types
// FIXME: uncomment when `impl_trait_in_bindings` feature is fixed.
// let _: &dyn Tr1<As1: Copy> = &S1;
}
|
