function initial()
{
if ($initial = parent::initial()) {
return $initial;
}
foreach ($this->checks as $check) {
if ($initial = $check->initial()) {
return $initial;
}
}
}
/**
* When multiple checks are present, the first one to return a non-null
* initial value is applied.
*/
function initial()
{
$initial = parent::initial();
if ($initial === null) {
$initial = [];
foreach ($this->props as $prop => $checks) {
if ($checks === true) {
goto next_prop;
}
foreach ($checks as $c) {
$pInitial = $c->initial();
if ($pInitial !== null) {
$initial[$prop] = $pInitial;
goto next_prop;
}
}
$initial[$prop] = null;
next_prop:
}
}
return $initial;
}
