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// Combination of `ptr-to-trait-obj-different-regions-misc.rs` and `ptr-to-trait-obj-wrap.rs`.
//
// Checks that you *can't* change lifetime arguments of trait objects in pointer casts involving
// wrapping said traits structures.
trait A<'a> {}
struct W<T: ?Sized>(T);
struct X<T: ?Sized>(T);
fn unwrap<'a, 'b>(a: *const W<dyn A<'a>>) -> *const dyn A<'b> {
a as _
//~^ error
//~| error
}
fn unwrap_nested<'a, 'b>(a: *const W<W<dyn A<'a>>>) -> *const W<dyn A<'b>> {
a as _
//~^ error
//~| error
}
fn rewrap<'a, 'b>(a: *const W<dyn A<'a>>) -> *const X<dyn A<'b>> {
a as _
//~^ error: lifetime may not live long enough
//~| error: lifetime may not live long enough
}
fn rewrap_nested<'a, 'b>(a: *const W<W<dyn A<'a>>>) -> *const W<X<dyn A<'b>>> {
a as _
//~^ error: lifetime may not live long enough
//~| error: lifetime may not live long enough
}
fn wrap<'a, 'b>(a: *const dyn A<'a>) -> *const W<dyn A<'b>> {
a as _
//~^ error: lifetime may not live long enough
//~| error: lifetime may not live long enough
}
fn main() {}
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