src/tools/clippy/tests/ui/missing_trait_methods.rs

   1 #![allow(unused, clippy::needless_lifetimes)]
   2 #![warn(clippy::missing_trait_methods)]
   3
   4 trait A {
   5     fn provided() {}
   6 }
   7
   8 trait B {
   9     fn required();
  10
  11     fn a(_: usize) -> usize {
  12         1
  13     }
  14
  15     fn b<'a, T: AsRef<[u8]>>(a: &'a T) -> &'a [u8] {
  16         a.as_ref()
  17     }
  18 }
  19
  20 struct Partial;
  21
  22 impl A for Partial {}
  23
  24 impl B for Partial {
  25     fn required() {}
  26
  27     fn a(_: usize) -> usize {
  28         2
  29     }
  30 }
  31
  32 struct Complete;
  33
  34 impl A for Complete {
  35     fn provided() {}
  36 }
  37
  38 impl B for Complete {
  39     fn required() {}
  40
  41     fn a(_: usize) -> usize {
  42         2
  43     }
  44
  45     fn b<T: AsRef<[u8]>>(a: &T) -> &[u8] {
  46         a.as_ref()
  47     }
  48 }
  49
  50 fn main() {}