//@ 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, PhantomData

); impl Deref for Wrap { type Target = T; fn deref(&self) -> &T { &self.0 } } impl Struct { // Test using `&self` sugar: fn ref_self(&self, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } // Test using `&Self` explicitly: fn ref_Self(self: &Self, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } fn box_ref_Self(self: Box<&Self>, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } fn pin_ref_Self(self: Pin<&Self>, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } fn box_box_ref_Self(self: Box>, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } fn box_pin_ref_Self(self: Box>, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } fn wrap_ref_Self_Self(self: Wrap<&Self, Self>, f: &u8) -> &u8 { f //~^ ERROR lifetime may not live long enough } fn ref_box_Self(self: &Box, f: &u32) -> &u32 { f //~^ ERROR lifetime may not live long enough } } fn main() {}