rust/tests/ui/implied-bounds/normalization-nested.rs

45 lines
993 B
Rust

// Test for normalization of projections that appear in the item bounds
// (versus those that appear directly in the input types).
//
// revisions: param_ty lifetime param_ty_no_compat lifetime_no_compat
//[param_ty] check-pass
//[param_ty_no_compat] check-pass
//[lifetime_no_compat] check-pass
//[param_ty_no_compat] compile-flags: -Zno-implied-bounds-compat
//[lifetime_no_compat] compile-flags: -Zno-implied-bounds-compat
pub trait Iter {
type Item;
}
#[cfg(any(param_ty, param_ty_no_compat))]
impl<X, I> Iter for I
where
I: IntoIterator<Item = X>,
{
type Item = X;
}
#[cfg(any(lifetime, lifetime_no_compat))]
impl<'x, I> Iter for I
where
I: IntoIterator<Item = &'x ()>,
{
type Item = &'x ();
}
pub struct Map<I>(I)
where
I: Iter,
I::Item: 'static;
pub fn test_wfcheck<'x>(_: Map<Vec<&'x ()>>) {}
pub fn test_borrowck<'x>(_: Map<Vec<&'x ()>>, s: &'x str) -> &'static str {
s
//[lifetime]~^ ERROR lifetime may not live long enough
}
fn main() {}