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// Test that structs with higher-ranked where clauses don't generate
// "outlives" requirements. Issue #22246.
#![allow(dead_code)]
pub trait TheTrait<'b> {
type TheAssocType;
}
pub struct TheType<'b> {
m: [fn(&'b()); 0]
}
impl<'a,'b> TheTrait<'a> for TheType<'b> {
type TheAssocType = &'b ();
}
pub struct WithHrAssoc<T>
where for<'a> T : TheTrait<'a>
{
m: [T; 0]
}
fn with_assoc<'a,'b>() {
// We get an error because 'b:'a does not hold:
let _: &'a WithHrAssoc<TheType<'b>> = loop { };
//~^ ERROR lifetime may not live long enough
}
pub trait TheSubTrait : for<'a> TheTrait<'a> {
}
impl<'b> TheSubTrait for TheType<'b> { }
pub struct WithHrAssocSub<T>
where T : TheSubTrait
{
m: [T; 0]
}
fn with_assoc_sub<'a,'b>() {
// The error here is just because `'b:'a` must hold for the type
// below to be well-formed, it is not related to the HR relation.
let _: &'a WithHrAssocSub<TheType<'b>> = loop { };
//~^ ERROR lifetime may not live long enough
}
fn main() {
}
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