Primo Committ

vendor/phpunit/php-code-coverage/src/Node/Iterator.php

@@ -0,0 +1,92 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-code-coverage.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\CodeCoverage\Node;
+
+use function count;
+use RecursiveIterator;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
+final class Iterator implements RecursiveIterator
+{
+    /**
+     * @var int
+     */
+    private $position;
+
+    /**
+     * @var AbstractNode[]
+     */
+    private $nodes;
+
+    public function __construct(Directory $node)
+    {
+        $this->nodes = $node->children();
+    }
+
+    /**
+     * Rewinds the Iterator to the first element.
+     */
+    public function rewind(): void
+    {
+        $this->position = 0;
+    }
+
+    /**
+     * Checks if there is a current element after calls to rewind() or next().
+     */
+    public function valid(): bool
+    {
+        return $this->position < count($this->nodes);
+    }
+
+    /**
+     * Returns the key of the current element.
+     */
+    public function key(): int
+    {
+        return $this->position;
+    }
+
+    /**
+     * Returns the current element.
+     */
+    public function current(): ?AbstractNode
+    {
+        return $this->valid() ? $this->nodes[$this->position] : null;
+    }
+
+    /**
+     * Moves forward to next element.
+     */
+    public function next(): void
+    {
+        $this->position++;
+    }
+
+    /**
+     * Returns the sub iterator for the current element.
+     *
+     * @return Iterator
+     */
+    public function getChildren(): self
+    {
+        return new self($this->nodes[$this->position]);
+    }
+
+    /**
+     * Checks whether the current element has children.
+     */
+    public function hasChildren(): bool
+    {
+        return $this->nodes[$this->position] instanceof Directory;
+    }
+}