<?php

namespace GuzzleHttp\Promise;

/**
* A special exception that is thrown when waiting on a rejected promise.
*
* The reason value is available via the getReason() method.
*/
class RejectionException extends \RuntimeException
{
/** @var mixed Rejection reason. */
private $reason;

/**
* @param mixed $reason Rejection reason.
* @param string $description Optional description
*/
public function __construct($reason, $description = null)
{
$this->reason = $reason;

$message = 'The promise was rejected';

if ($description) {
$message .= ' with reason: ' . $description;
} elseif (is_string($reason)
|| (is_object($reason) && method_exists($reason, '__toString'))
) {
$message .= ' with reason: ' . $this->reason;
} elseif ($reason instanceof \JsonSerializable) {
$message .= ' with reason: '
. json_encode($this->reason, JSON_PRETTY_PRINT);
}

parent::__construct($message);
}

/**
* Returns the rejection reason.
*
* @return mixed
*/
public function getReason()
{
return $this->reason;
}
}