rust/tests/ui/unsized/issue-91801.rs
2023-01-11 09:32:08 +00:00

20 lines
625 B
Rust

pub struct Something;
type Validator<'a> = dyn 'a + Send + Sync + Fn(&'a Something) -> Result<(), ()>;
pub static ALL_VALIDATORS: &[(&'static str, &'static Validator)] =
&[("validate that credits and debits balance", &validate_something)];
fn or<'a>(first: &'static Validator<'a>, second: &'static Validator<'a>) -> Validator<'a> {
//~^ ERROR return type cannot have an unboxed trait object
return Box::new(move |something: &'_ Something| -> Result<(), ()> {
first(something).or_else(|_| second(something))
});
}
fn validate_something(_: &Something) -> Result<(), ()> {
Ok(())
}
fn main() {}