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