#![deny(single_use_lifetimes)] #![allow(dead_code)] #![allow(unused_variables)] // Test that we DO NOT warn for a lifetime used just once in a return type, // where that return type is in an inherent method. struct Foo<'f> { data: &'f u32 } impl<'f> Foo<'f> { //~ ERROR `'f` only used once fn inherent_a<'a>(&self) -> &'a u32 { // OK for 'a &22 } } fn main() { }