src/test/ui/single-use-lifetime/one-use-in-inherent-method-argument.rs

   1 #![deny(single_use_lifetimes)]
   2 #![allow(dead_code)]
   3 #![allow(unused_variables)]
   4
   5 // Test that we DO warn for a lifetime used only once in an inherent method.
   6
   7 struct Foo<'f> {
   8     data: &'f u32
   9 }
  10
  11 impl<'f> Foo<'f> { //~ ERROR `'f` only used once
  12     //~^ HELP elide the single-use lifetime
  13     fn inherent_a<'a>(&self, data: &'a u32) { //~ ERROR `'a` only used once
  14         //~^ HELP elide the single-use lifetime
  15     }
  16 }
  17
  18 fn main() { }