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// Check projection of an associated type out of a higher-ranked trait-bound
// in the context of a struct definition.
pub trait Foo<T> {
type A;
fn get(&self, t: T) -> Self::A;
}
struct SomeStruct<I: for<'x> Foo<&'x isize>> {
field: I::A
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
}
enum SomeEnum<'b, I: for<'a> Foo<&'a isize>> {
TupleVariant(I::A),
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
StructVariant { field: I::A },
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
OkVariant(&'b usize),
}
// FIXME(eddyb) This one doesn't even compile because of the unsupported syntax.
// struct AnotherStruct<I : for<'x> Foo<&'x isize>> {
// field: <I as for<'y> Foo<&'y isize>>::A
// }
struct YetAnotherStruct<'a, I: for<'x> Foo<&'x isize>> {
field: <I as Foo<&'a isize>>::A,
}
struct Why<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, 'i, 'j, 'k, 'n, 'o, 'p, 'q, 'r, 's, 't, 'u, 'v, 'w, 'x,
'y, 'z, 'aa, I: for<'l, 'm> Foo<&'l &'m isize>> {
field: I::A,
//~^ ERROR cannot use the associated type of a trait with uninferred generic parameters
}
pub fn main() {}
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