|  | //@ run-rustfix | 
|  | //@ edition:2018 | 
|  |  | 
|  | #![feature(arbitrary_self_types)] | 
|  | #![allow(non_snake_case, dead_code)] | 
|  |  | 
|  | use std::marker::PhantomData; | 
|  | use std::ops::Deref; | 
|  | use std::pin::Pin; | 
|  |  | 
|  | struct Struct {} | 
|  |  | 
|  | struct Wrap<T, P>(T, PhantomData<P>); | 
|  |  | 
|  | impl<T, P> Deref for Wrap<T, P> { | 
|  | type Target = T; | 
|  | fn deref(&self) -> &T { | 
|  | &self.0 | 
|  | } | 
|  | } | 
|  |  | 
|  | impl Struct { | 
|  | // Test using `&self` sugar: | 
|  |  | 
|  | fn ref_self<'a>(&self, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | // Test using `&Self` explicitly: | 
|  |  | 
|  | fn ref_Self<'a>(self: &Self, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_ref_Self<'a>(self: Box<&Self>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn pin_ref_Self<'a>(self: Pin<&Self>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_box_ref_Self<'a>(self: Box<Box<&Self>>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_pin_ref_Self<'a>(self: Box<Pin<&Self>>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn wrap_ref_Self_Self<'a>(self: Wrap<&Self, Self>, f: &'a u8) -> &'a u8 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn ref_box_Self<'a>(self: &Box<Self>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  | } | 
|  |  | 
|  | fn main() {} |