|  | //@ edition:2018 | 
|  | //@ run-rustfix | 
|  | #![allow(non_snake_case, dead_code, mismatched_lifetime_syntaxes)] | 
|  |  | 
|  | use std::pin::Pin; | 
|  |  | 
|  | struct Struct<'a> { | 
|  | data: &'a u32, | 
|  | } | 
|  |  | 
|  | impl<'a> Struct<'a> { | 
|  | // Test using `&self` sugar: | 
|  |  | 
|  | async fn ref_self<'b>(&self, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | // Test using `&Self` explicitly: | 
|  |  | 
|  | async fn ref_Self<'b>(self: &Self, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | async fn box_ref_Self<'b>(self: Box<&Self>, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | async fn pin_ref_Self<'b>(self: Pin<&Self>, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | async fn box_box_ref_Self<'b>(self: Box<Box<&Self>>, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | async fn box_pin_Self<'b>(self: Box<Pin<&Self>>, f: &'b u32) -> &'b u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  | } | 
|  |  | 
|  | fn main() {} |