clean install

vendor/e0ipso/shaper/src/Transformation/TransformationsQueue.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Shaper\Transformation;
+
+use Shaper\Util\Context;
+
+class TransformationsQueue extends \SplQueue implements TransformationInterface, TransformationValidationInterface {
+
+  use TransformationValidationTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function transform($data, ?Context $context = NULL) {
+    if (!isset($context)) {
+      $context = new Context();
+    }
+    $output = $data;
+    foreach ($this as $transformation) {
+      $output = $transformation->transform($output, $context);
+    }
+    return $output;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getInputValidator() {
+    /** @var \Shaper\Transformation\TransformationValidationInterface $first_transformation */
+    $first_transformation = $this->bottom();
+    return $first_transformation->getInputValidator();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getOutputValidator() {
+    /** @var \Shaper\Transformation\TransformationValidationInterface $last_transformation */
+    $last_transformation = $this->top();
+    return $last_transformation->getOutputValidator();
+  }
+
+}