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<?php
namespace Give\Framework\FieldsAPI\Concerns;
use Give\Framework\FieldsAPI\Contracts\Collection;
/**
* A declarative iterator for each Node in the tree.
*/
trait WalkNodes
{
/**
* @param callable $callback
*
* @return void
*/
public function walk(callable $callback)
{
$this->walkCollection($this, $callback);
}
/**
* @param Collection $collection
* @param callable $callback
*
* @return void
*/
public function walkCollection(Collection $collection, callable $callback)
{
foreach ($collection->all() as $node) {
$callback($node);
if ($node instanceof Collection) {
$this->walkCollection($node, $callback);
}
}
}
/**
* @param callable $callback
*
* @return void
*/
public function walkFields(callable $callback)
{
foreach ($this->getFields() as $field) {
$callback($field);
}
}
}