This error indicates the use of a loop keyword (break
or continue
) inside a closure but outside of any loop. Erroneous code example:
let w = || { break; }; // error: `break` inside of a closure
break
and continue
keywords can be used as normal inside closures as long as they are also contained within a loop. To halt the execution of a closure you should instead use a return statement. Example:
let w = || { for _ in 0..10 { break; } }; w();