src/test/ui/rfc-1445-restrict-constants-in-patterns/match-forbidden-without-eq.rs

   1 #[derive(PartialEq)]
   2 struct Foo {
   3     x: u32
   4 }
   5
   6 const FOO: Foo = Foo { x: 0 };
   7
   8 fn main() {
   9     let y = Foo { x: 1 };
  10     match y {
  11         FOO => { }
  12         //~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]`
  13         _ => { }
  14     }
  15
  16     let x = 0.0;
  17     match x {
  18         f32::INFINITY => { }
  19         //~^ WARNING floating-point types cannot be used in patterns
  20         //~| WARNING this was previously accepted by the compiler but is being phased out
  21         _ => { }
  22     }
  23 }