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#![feature(try_trait_v2)]
use std::ops::Try;
fn main() {
// error for a `Try` type on a non-`Try` fn
std::fs::File::open("foo")?; //~ ERROR the `?` operator can only
// a non-`Try` type on a non-`Try` fn
()?; //~ ERROR the `?` operator can only be applied to
//~^ ERROR the `?` operator can only be used in a function that
// an unrelated use of `Try`
try_trait_generic::<()>(); //~ ERROR the trait bound
}
fn try_trait_generic<T: Try>() -> T {
// and a non-`Try` object on a `Try` fn.
()?; //~ ERROR the `?` operator can only be applied to values that implement `Try`
loop {}
}
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