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// run-pass
trait Get {
type Value;
fn get(&self) -> &<Self as Get>::Value;
}
struct Struct {
x: isize,
}
impl Get for Struct {
type Value = isize;
fn get(&self) -> &isize {
&self.x
}
}
trait Grab {
type U;
fn grab(&self) -> &<Self as Grab>::U;
}
impl<T:Get> Grab for T {
type U = <T as Get>::Value;
fn grab(&self) -> &<T as Get>::Value {
self.get()
}
}
fn main() {
let s = Struct {
x: 100,
};
assert_eq!(*s.grab(), 100);
}
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