// Tests that: // - default impls do not have to supply all items and // - a default impl does not count as an impl (in this case, an incomplete default impl). #![feature(specialization)] //~ WARN the feature `specialization` is incomplete trait Foo { fn foo_one(&self) -> &'static str; fn foo_two(&self) -> &'static str; } struct MyStruct; default impl Foo for T { fn foo_one(&self) -> &'static str { "generic" } } fn main() { println!("{}", MyStruct.foo_one()); //~^ ERROR the method }