enum = $this->listByType($enum); } /** * @inheritDoc */ public function validate(ValidationContext $context, Schema $schema): ?ValidationError { $type = $context->currentDataType(); $data = $context->currentData(); if (isset($this->enum[$type])) { foreach ($this->enum[$type] as $value) { if (Helper::equals($value, $data)) { return null; } } } return $this->error($schema, $context, 'enum', 'The data should match one item from enum'); } /