25 lines
527 B
Rust
25 lines
527 B
Rust
// Test that we can quantify lifetimes outside a constraint (i.e., including
|
|
// the self type) in a where clause. Specifically, test that implementing for a
|
|
// specific lifetime is not enough to satisfy the `for<'a> ...` constraint, which
|
|
// should require *all* lifetimes.
|
|
|
|
static X: &'static u32 = &42;
|
|
|
|
trait Bar {
|
|
fn bar(&self);
|
|
}
|
|
|
|
impl Bar for &'static u32 {
|
|
fn bar(&self) {}
|
|
}
|
|
|
|
fn foo<T>(x: &T)
|
|
where
|
|
for<'a> &'a T: Bar,
|
|
{
|
|
}
|
|
|
|
fn main() {
|
|
foo(&X); //~ ERROR implementation of `Bar` is not general enough
|
|
}
|