rust/src/test/ui/suggestions/suggest-box.fixed

// run-rustfix

fn main() {
    let _x: Box<dyn Fn() -> Result<(), ()>> = Box::new(|| { //~ ERROR mismatched types
        Err(())?;
        Ok(())
    });
}
Suggest `Box::new` when appropriate When encountering a boxed value as expected and a stack allocated value that could be boxed to fulfill the expectation, like in the following snippet, suggest `Box::new` wrapping. 2019-08-12 22:22:58 -05:00			`// run-rustfix`

			`fn main() {`
			`let _x: Box<dyn Fn() -> Result<(), ()>> = Box::new(\|\| { //~ ERROR mismatched types`
			`Err(())?;`
			`Ok(())`
			`});`
			`}`