Vendor lock

vendor/illuminate/view/Concerns/ManagesLoops.php

@@ -0,0 +1,94 @@
+<?php
+
+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->loopsStack);
+
+        $this->loopsStack[] = [
+            'iteration' => 0,
+            'index' => 0,
+            'remaining' => $length ?? null,
+            'count' => $length,
+            'first' => true,
+            'last' => isset($length) ? $length == 1 : null,
+            'odd' => false,
+            'even' => true,
+            'depth' => count($this->loopsStack) + 1,
+            'parent' => $parent ? (object) $parent : null,
+        ];
+    }
+
+    /**
+     * Increment the top loop's indices.
+     *
+     * @return void
+     */
+    public function incrementLoopIndices()
+    {
+        $loop = $this->loopsStack[$index = count($this->loopsStack) - 1];
+
+        $this->loopsStack[$index] = array_merge($this->loopsStack[$index], [
+            'iteration' => $loop['iteration'] + 1,
+            'index' => $loop['iteration'],
+            'first' => $loop['iteration'] == 0,
+            'odd' => ! $loop['odd'],
+            'even' => ! $loop['even'],
+            'remaining' => isset($loop['count']) ? $loop['remaining'] - 1 : null,
+            'last' => isset($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->loopsStack);
+    }
+
+    /**
+     * Get an instance of the last loop in the stack.
+     *
+     * @return \stdClass|null
+     */
+    public function getLastLoop()
+    {
+        if ($last = Arr::last($this->loopsStack)) {
+            return (object) $last;
+        }
+    }
+
+    /**
+     * Get the entire loop stack.
+     *
+     * @return array
+     */
+    public function getLoopStack()
+    {
+        return $this->loopsStack;
+    }
+}