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<?php
namespace YOOtheme\GraphQL\Type\Definition;
use YOOtheme\GraphQL\Error\Error;
use YOOtheme\GraphQL\Language\AST\BooleanValueNode;
use YOOtheme\GraphQL\Language\AST\Node;
use YOOtheme\GraphQL\Utils\Utils;
/**
* Class BooleanType
* @package GraphQL\Type\Definition
*/
class BooleanType extends ScalarType
{
/**
* @var string
*/
public $name = Type::BOOLEAN;
/**
* @var string
*/
public $description = 'The `Boolean` scalar type represents `true` or `false`.';
/**
* @param mixed $value
* @return bool
*/
public function serialize($value)
{
return !!$value;
}
/**
* @param mixed $value
* @return bool
* @throws Error
*/
public function parseValue($value)
{
if (is_bool($value)) {
return $value;
}
throw new Error("Cannot represent value as boolean: " . Utils::printSafe($value));
}
/**
* @param Node $valueNode
* @param array|null $variables
* @return bool|null
* @throws \Exception
*/
public function parseLiteral($valueNode, array $variables = null)
{
if ($valueNode instanceof BooleanValueNode) {
return (bool) $valueNode->value;
}
// Intentionally without message, as all information already in wrapped Exception
throw new \Exception();
}
}