public function Condition::resolve in GraphQL 8.4

Resolve values for the fields.

Parameters

mixed $value:

mixed $args:

\Drupal\graphql\GraphQL\Execution\ResolveContext $context:

\GraphQL\Type\Definition\ResolveInfo $info:

\Drupal\graphql\GraphQL\Execution\FieldContext $field:

Return value

mixed

Overrides ResolverInterface::resolve

File

src/GraphQL/Resolver/Condition.php, line 38

Class

Condition

Conditional resolver.

Namespace

Drupal\graphql\GraphQL\Resolver

Code

public function resolve($value, $args, ResolveContext $context, ResolveInfo $info, FieldContext $field) {
  $branches = $this->branches;
  while (list($condition, $resolver) = array_pad(array_shift($branches), 2, NULL)) {
    if ($condition instanceof ResolverInterface) {
      if (($condition = $condition
        ->resolve($value, $args, $context, $info, $field)) === NULL) {

        // Bail out early if a resolver returns NULL.
        continue;
      }
    }
    if ($condition instanceof SyncPromise) {
      return DeferredUtility::returnFinally($condition, function ($cond) use ($branches, $resolver, $value, $args, $context, $info, $field) {
        array_unshift($branches, [
          $cond,
          $resolver,
        ]);
        return (new Condition($branches))
          ->resolve($value, $args, $context, $info, $field);
      });
    }
    if ((bool) $condition) {

      /** @var \Drupal\graphql\GraphQL\Resolver\ResolverInterface|null $resolver */
      return $resolver ? $resolver
        ->resolve($value, $args, $context, $info, $field) : $condition;
    }
  }

  // Functional languages throw exceptions here. Should we just return NULL?
  return NULL;
}