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// Check that incorrect higher ranked subtyping
// causes an error.
struct Inv<'a>(fn(&'a ()) -> &'a ());
fn hr_subtype<'c>(f: for<'a, 'b> fn(Inv<'a>, Inv<'a>)) {
// ok
let _: for<'a> fn(Inv<'a>, Inv<'a>) = f;
let sub: for<'a> fn(Inv<'a>, Inv<'a>) = f;
// no
let _: for<'a, 'b> fn(Inv<'a>, Inv<'b>) = sub;
//~^ ERROR mismatched types
}
fn simple1<'c>(x: (&'c i32,)) {
let _x: (&'static i32,) = x;
//~^ ERROR: lifetime may not live long enough
}
fn simple2<'c>(x: (&'c i32,)) {
let _: (&'static i32,) = x;
//~^ ERROR: lifetime may not live long enough
}
fn main() {
hr_subtype(|_, _| {});
simple1((&3,));
simple2((&3,));
}
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