Boolean Return Simplification¶

This pass checks whether a boolean return value could be simplified:

// Instead of
function foo(A $a) {
    if ($a->isValid()) {
        return true;
    } else {
        return false;
    }
}

// it will suggest
function foo(A $a) {
    return $a->isValid();
}

In the example above, we assumed that $a->isValid() already returns a boolean. If that is not the case, it would suggest (boolean) $a->isValid() instead.