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    <h3>Editing: ManagesLoops.php</h3>
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namespace Illuminate\View\Concerns;

use Countable;
use Illuminate\Support\Arr;

trait ManagesLoops
{
    /**
     * The stack of in-progress loops.
     *
     * @var array
     */
    protected $loopsStack = [];

    /**
     * Add new loop to the stack.
     *
     * @param  \Countable|array  $data
     * @return void
     */
    public function addLoop($data)
    {
        $length = is_array($data) || $data instanceof Countable ? count($data) : null;

        $parent = Arr::last($this-&gt;loopsStack);

        $this-&gt;loopsStack[] = [
            'iteration' =&gt; 0,
            'index' =&gt; 0,
            'remaining' =&gt; $length ?? null,
            'count' =&gt; $length,
            'first' =&gt; true,
            'last' =&gt; isset($length) ? $length == 1 : null,
            'odd' =&gt; false,
            'even' =&gt; true,
            'depth' =&gt; count($this-&gt;loopsStack) + 1,
            'parent' =&gt; $parent ? (object) $parent : null,
        ];
    }

    /**
     * Increment the top loop's indices.
     *
     * @return void
     */
    public function incrementLoopIndices()
    {
        $loop = $this-&gt;loopsStack[$index = count($this-&gt;loopsStack) - 1];

        $this-&gt;loopsStack[$index] = array_merge($this-&gt;loopsStack[$index], [
            'iteration' =&gt; $loop['iteration'] + 1,
            'index' =&gt; $loop['iteration'],
            'first' =&gt; $loop['iteration'] == 0,
            'odd' =&gt; ! $loop['odd'],
            'even' =&gt; ! $loop['even'],
            'remaining' =&gt; isset($loop['count']) ? $loop['remaining'] - 1 : null,
            'last' =&gt; isset($loop['count']) ? $loop['iteration'] == $loop['count'] - 1 : null,
        ]);
    }

    /**
     * Pop a loop from the top of the loop stack.
     *
     * @return void
     */
    public function popLoop()
    {
        array_pop($this-&gt;loopsStack);
    }

    /**
     * Get an instance of the last loop in the stack.
     *
     * @return \stdClass|null
     */
    public function getLastLoop()
    {
        if ($last = Arr::last($this-&gt;loopsStack)) {
            return (object) $last;
        }
    }

    /**
     * Get the entire loop stack.
     *
     * @return array
     */
    public function getLoopStack()
    {
        return $this-&gt;loopsStack;
    }
}
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