src/test/ui/empty/empty-struct-unit-pat.rs

   1 // Can't use unit struct as tuple struct pattern
   2
   3 // aux-build:empty-struct.rs
   4
   5 extern crate empty_struct;
   6 use empty_struct::*;
   7
   8 struct Empty2;
   9
  10 enum E {
  11     Empty4
  12 }
  13
  14 fn main() {
  15     let e2 = Empty2;
  16     let e4 = E::Empty4;
  17     let xe2 = XEmpty2;
  18     let xe4 = XE::XEmpty4;
  19
  20     match e2 {
  21         Empty2() => () //~ ERROR expected tuple struct or tuple variant, found unit struct `Empty2`
  22     }
  23     match xe2 {
  24         XEmpty2() => ()
  25         //~^ ERROR expected tuple struct or tuple variant, found unit struct `XEmpty2`
  26     }
  27     match e2 {
  28         Empty2(..) => ()
  29         //~^ ERROR expected tuple struct or tuple variant, found unit struct `Empty2`
  30     }
  31     match xe2 {
  32         XEmpty2(..) => ()
  33         //~^ ERROR expected tuple struct or tuple variant, found unit struct `XEmpty2`
  34     }
  35
  36     match e4 {
  37         E::Empty4() => ()
  38         //~^ ERROR expected tuple struct or tuple variant, found unit variant `E::Empty4`
  39     }
  40     match xe4 {
  41         XE::XEmpty4() => (),
  42         //~^ ERROR expected tuple struct or tuple variant, found unit variant `XE::XEmpty4`
  43         _ => {},
  44     }
  45     match e4 {
  46         E::Empty4(..) => ()
  47         //~^ ERROR expected tuple struct or tuple variant, found unit variant `E::Empty4`
  48     }
  49     match xe4 {
  50         XE::XEmpty4(..) => (),
  51         //~^ ERROR expected tuple struct or tuple variant, found unit variant `XE::XEmpty4`
  52         _ => {},
  53     }
  54 }