src/test/ui/traits/negative-impls/explicitly-unimplemented-error-message.rs

   1 // This tests issue #79683: note in the error message that the trait is
   2 // explicitly unimplemented instead of suggesting to implement it.
   3
   4 #![feature(negative_impls)]
   5
   6 struct Qux;
   7 //~^ NOTE method `clone` not found for this
   8 //~^^ NOTE method `foo` not found for this
   9
  10 impl !Clone for Qux {}
  11
  12 trait Bar {
  13     fn bar(&self);
  14 }
  15
  16 impl !Bar for u32 {}
  17
  18 trait Foo {
  19     fn foo(&self);
  20 }
  21 //~^^^ NOTE `Foo` defines an item `foo`, perhaps you need to implement it
  22
  23 trait FooBar {
  24     fn foo(&self);
  25 }
  26
  27 impl !Foo for Qux {}
  28
  29 impl !FooBar for Qux {}
  30
  31 impl !FooBar for u32 {}
  32
  33 fn main() {
  34     Qux.clone();
  35     //~^ ERROR no method named `clone` found for struct `Qux`
  36     //~| NOTE method not found in `Qux`
  37     //~| NOTE `Clone` defines an item `clone`, but is explicitly unimplemented
  38
  39     0_u32.bar();
  40     //~^ ERROR no method named `bar` found for type `u32`
  41     //~| NOTE method not found in `u32`
  42     //~| NOTE `Bar` defines an item `bar`, but is explicitly unimplemented
  43
  44     Qux.foo();
  45     //~^ ERROR no method named `foo` found for struct `Qux`
  46     //~| NOTE method not found in `Qux`
  47     //~| NOTE the following traits define an item `foo`, but are explicitly unimplemented
  48
  49     0_u32.foo();
  50     //~^ ERROR no method named `foo` found for type `u32`
  51     //~| NOTE method not found in `u32`
  52     //~| NOTE `FooBar` defines an item `foo`, but is explicitly unimplemented
  53 }