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// ... continued from ./min-choice.rs
// check-fail
trait Cap<'a> {}
impl<T> Cap<'_> for T {}
fn type_test<'a, T: 'a>() -> &'a u8 { &0 }
// Make sure we don't pick `'b`.
fn test_b<'a, 'b, 'c, T>() -> impl Cap<'a> + Cap<'b> + Cap<'c>
where
'a: 'b,
'a: 'c,
T: 'b,
{
type_test::<'_, T>() // This should pass if we pick 'b.
//~^ ERROR the parameter type `T` may not live long enough
}
// Make sure we don't pick `'c`.
fn test_c<'a, 'b, 'c, T>() -> impl Cap<'a> + Cap<'b> + Cap<'c>
where
'a: 'b,
'a: 'c,
T: 'c,
{
type_test::<'_, T>() // This should pass if we pick 'c.
//~^ ERROR the parameter type `T` may not live long enough
}
// We need to pick min_choice from `['b, 'c]`, but it's ambiguous which one to pick because
// they're incomparable.
fn test_ambiguous<'a, 'b, 'c>(s: &'a u8) -> impl Cap<'b> + Cap<'c>
where
'a: 'b,
'a: 'c,
{
s
//~^ ERROR captures lifetime that does not appear in bounds
}
fn main() {}
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