clean install

vendor/chi-teck/drupal-code-generator/src/Validator/Optional.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DrupalCodeGenerator\Validator;
+
+/**
+ * Validates only non-empty values.
+ */
+final class Optional {
+
+  private readonly \Closure $validator;
+
+  /**
+   * @psalm-param callable(mixed): mixed $validator
+   */
+  public function __construct(callable $validator) {
+    // Convert into closure as typed properties cannot be callable.
+    $this->validator = $validator(...);
+  }
+
+  /**
+   * @throws \UnexpectedValueException
+   */
+  public function __invoke(mixed $value): mixed {
+    return $value === NULL || $value === '' || $value === [] ? $value : ($this->validator)($value);
+  }
+
+}