/**
* Adds prototype objects depending on given data.
*
* @param Mapping $mapping The mapping object
* @param Mapping $proto The prototype mapping object
* @param mixed $input The input
*
* @throw InvalidArgumentException If given data is not an array
*/
private function resize(Mapping $mapping, Mapping $proto, $input)
{
if (!is_array($input)) {
throw new \InvalidArgumentException('The input must be an array.');
}
$children = [];
foreach ($input as $index => $value) {
$children[$index] = $proto;
}
$mapping->setChildren($children);
}
