#![feature(prelude_import)]
#![no_std]
//@ check-pass
//@ compile-flags: -Zunpretty=expanded
#![feature(derive_coerce_pointee)]
#[prelude_import]
use ::std::prelude::rust_2015::*;
#[macro_use]
extern crate std;
use std::marker::CoercePointee;

pub trait MyTrait<T: ?Sized> {}

#[repr(transparent)]
struct MyPointer<'a, #[pointee] T: ?Sized> {
    ptr: &'a T,
}
#[automatically_derived]
impl<'a, T: ?Sized + ::core::marker::Unsize<__S>, __S: ?Sized>
    ::core::ops::DispatchFromDyn<MyPointer<'a, __S>> for MyPointer<'a, T> {
}
#[automatically_derived]
impl<'a, T: ?Sized + ::core::marker::Unsize<__S>, __S: ?Sized>
    ::core::ops::CoerceUnsized<MyPointer<'a, __S>> for MyPointer<'a, T> {
}

#[repr(transparent)]
pub struct MyPointer2<'a, Y, Z: MyTrait<T>, #[pointee] T: ?Sized + MyTrait<T>,
    X: MyTrait<T> = ()> where Y: MyTrait<T> {
    data: &'a mut T,
    x: core::marker::PhantomData<X>,
}
#[automatically_derived]
impl<'a, Y, Z: MyTrait<T> + MyTrait<__S>, T: ?Sized + MyTrait<T> +
    ::core::marker::Unsize<__S>, __S: ?Sized + MyTrait<__S>, X: MyTrait<T> +
    MyTrait<__S>> ::core::ops::DispatchFromDyn<MyPointer2<'a, Y, Z, __S, X>>
    for MyPointer2<'a, Y, Z, T, X> where Y: MyTrait<T>, Y: MyTrait<__S> {
}
#[automatically_derived]
impl<'a, Y, Z: MyTrait<T> + MyTrait<__S>, T: ?Sized + MyTrait<T> +
    ::core::marker::Unsize<__S>, __S: ?Sized + MyTrait<__S>, X: MyTrait<T> +
    MyTrait<__S>> ::core::ops::CoerceUnsized<MyPointer2<'a, Y, Z, __S, X>> for
    MyPointer2<'a, Y, Z, T, X> where Y: MyTrait<T>, Y: MyTrait<__S> {
}

#[repr(transparent)]
struct MyPointerWithoutPointee<'a, T: ?Sized> {
    ptr: &'a T,
}
#[automatically_derived]
impl<'a, T: ?Sized + ::core::marker::Unsize<__S>, __S: ?Sized>
    ::core::ops::DispatchFromDyn<MyPointerWithoutPointee<'a, __S>> for
    MyPointerWithoutPointee<'a, T> {
}
#[automatically_derived]
impl<'a, T: ?Sized + ::core::marker::Unsize<__S>, __S: ?Sized>
    ::core::ops::CoerceUnsized<MyPointerWithoutPointee<'a, __S>> for
    MyPointerWithoutPointee<'a, T> {
}