+<?php
+
+namespace Drupal\drupalmoduleupgrader\Plugin\DMU\Converter\Functions;
+
+use Drupal\drupalmoduleupgrader\TargetInterface;
+use Pharborist\Functions\FunctionCallNode;
+use Pharborist\Objects\ClassMethodCallNode;
+use Pharborist\Types\FalseNode;
+use Pharborist\Types\StringNode;
+
+/**
+ * @Converter(
+ * id = "theme_get_registry",
+ * description = @Translation("Rewrites calls to theme_get_registry().")
+ * )
+ */
+class ThemeGetRegistry extends FunctionCallModifier {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function rewrite(FunctionCallNode $call, TargetInterface $target) {
+ $arguments = $call->getArguments()->toArray();
+
+ return ClassMethodCallNode::create('\Drupal', 'service')
+ ->appendArgument(StringNode::fromValue('theme.registry'))
+ ->appendMethodCall(($arguments && $arguments[0] instanceof FalseNode) ? 'getRuntime' : 'get');
+ }
+
+}