function ExtensionExistsConstraintValidator::validate

File

core/lib/Drupal/Core/Extension/Plugin/Validation/Constraint/ExtensionExistsConstraintValidator.php, line 59

Class

ExtensionExistsConstraintValidator

Validates that a given extension exists.

Namespace

Code

public function validate(mixed $extension_name, Constraint $constraint) {
  $variables = [
    '@name' => $extension_name,
  ];
  switch ($constraint->type) {
    case 'module':
      // This constraint may be used to validate nullable (optional) values.
      if ($extension_name === NULL) {
        return;
      }
      // Some plugins are shipped in `core/lib`, which corresponds to the
      // special `core` extension name.
      // For example: \Drupal\Core\Menu\Plugin\Block\LocalActionsBlock.
      if ($extension_name === 'core') {
        return;
      }
      if (!$this->moduleHandler
        ->moduleExists($extension_name)) {
        $this->context
          ->addViolation($constraint->moduleMessage, $variables);
      }
      break;

    case 'theme':
      // This constraint may be used to validate nullable (optional) values.
      if ($extension_name === NULL) {
        return;
      }
      if (!$this->themeHandler
        ->themeExists($extension_name)) {
        $this->context
          ->addViolation($constraint->themeMessage, $variables);
      }
      break;

    default:
      throw new \InvalidArgumentException("Unknown extension type: '{$constraint->type}'");
  }
}