src/test/ui/type-alias-impl-trait/issue-63263-closure-return.rs

   1 // Regression test for issue #63263.
   2 // Tests that we properly handle closures with an explicit return type
   3 // that return an opaque type.
   4
   5 // check-pass
   6
   7 #![feature(min_type_alias_impl_trait, type_alias_impl_trait)]
   8 //~^ WARN incomplete
   9
  10 pub type Closure = impl FnOnce();
  11
  12 fn main() {
  13     || -> Closure { || () };
  14 }