src/test/ui/mismatched_types/issue-47706.rs

   1 pub struct Foo {
   2     foo: Option<i32>,
   3 }
   4
   5 impl Foo {
   6     pub fn new(foo: Option<i32>, _: ()) -> Foo {
   7         Foo { foo }
   8     }
   9
  10     pub fn map(self) -> Option<Foo> {
  11         self.foo.map(Foo::new)
  12     }
  13     //~^^ ERROR function is expected to take 1 argument, but it takes 2 arguments [E0593]
  14 }
  15
  16 enum Qux {
  17     Bar(i32),
  18 }
  19
  20 fn foo<F>(f: F)
  21 where
  22     F: Fn(),
  23 {
  24 }
  25
  26 fn main() {
  27     foo(Qux::Bar);
  28 }
  29 //~^^ ERROR function is expected to take 0 arguments, but it takes 1 argument [E0593]