pub static BREAK_WITH_LABEL_AND_LOOP: &Lint
Expand description
The break_with_label_and_loop
lint detects labeled break
expressions with
an unlabeled loop as their value expression.
§Example
'label: loop {
break 'label loop { break 42; };
};
{{produces}}
§Explanation
In Rust, loops can have a label, and break
expressions can refer to that label to
break out of specific loops (and not necessarily the innermost one). break
expressions
can also carry a value expression, which can be another loop. A labeled break
with an
unlabeled loop as its value expression is easy to confuse with an unlabeled break with
a labeled loop and is thus discouraged (but allowed for compatibility); use parentheses
around the loop expression to silence this warning. Unlabeled break
expressions with
labeled loops yield a hard error, which can also be silenced by wrapping the expression
in parentheses.