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// Test overloaded resolution of fn_traits.
// run-pass
#![feature(fn_traits)]
#![feature(unboxed_closures)]
#[derive(Debug, PartialEq, Eq)]
struct Ishmael;
#[derive(Debug, PartialEq, Eq)]
struct Maybe;
struct CallMe;
impl FnOnce<(Ishmael,)> for CallMe {
type Output = Ishmael;
extern "rust-call" fn call_once(self, _args: (Ishmael,)) -> Ishmael {
println!("Split your lungs with blood and thunder!");
Ishmael
}
}
impl FnOnce<(Maybe,)> for CallMe {
type Output = Maybe;
extern "rust-call" fn call_once(self, _args: (Maybe,)) -> Maybe {
println!("So we just met, and this is crazy");
Maybe
}
}
fn main() {
assert_eq!(CallMe(Ishmael), Ishmael);
assert_eq!(CallMe(Maybe), Maybe);
}
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