rust/tests/ui/closures/binder/suggestion-for-introducing-lifetime-into-binder.rs

#![feature(closure_lifetime_binder)]
fn main() {
    for<> |_: &'a ()| -> () {};
    //~^ ERROR use of undeclared lifetime name `'a`
    for<'a> |_: &'b ()| -> () {};
    //~^ ERROR use of undeclared lifetime name `'b`
}
Parse closure binders This is first step in implementing RFC 3216. - Parse `for<'a>` before closures in ast - Error in lowering - Add `closure_lifetime_binder` feature 2022-06-02 11:15:05 -05:00			`#![feature(closure_lifetime_binder)]`
			`fn main() {`
			`for<> \|_: &'a ()\| -> () {};`
			//~^ ERROR use of undeclared lifetime name `'a`
			`for<'a> \|_: &'b ()\| -> () {};`
			//~^ ERROR use of undeclared lifetime name `'b`
			`}`