Macro polonius_the_crab::polonius_break

macro_rules! polonius_break {
    ( $($e:expr $(,)?)? ) => { ... };
}

break a non-dependent value out of a polonius_loop!.

• (when the value to break with is dependent, then the necessary pattern is not loop { polonius!(…) } (what polonius_loop! stands for) but polonius!(… let it = loop { … break … }; …)).