File: unsized-trait-impl-trait-arg.rs

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// Test sized-ness checking in substitution in impls.

// impl - unbounded
trait T2<Z> {
    fn foo(&self, z: Z);
}
struct S4<Y: ?Sized>(Box<Y>);
impl<X: ?Sized> T2<X> for S4<X> {
    //~^ ERROR the size for values of type
}

fn main() { }