96 lines
2.2 KiB
PHP
96 lines
2.2 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace GuzzleHttp\Promise;
|
|
|
|
/**
|
|
* A promise that has been rejected.
|
|
*
|
|
* Thenning off of this promise will invoke the onRejected callback
|
|
* immediately and ignore other callbacks.
|
|
*
|
|
* @final
|
|
*/
|
|
class RejectedPromise implements PromiseInterface
|
|
{
|
|
private $reason;
|
|
|
|
/**
|
|
* @param mixed $reason
|
|
*/
|
|
public function __construct($reason)
|
|
{
|
|
if (is_object($reason) && method_exists($reason, 'then')) {
|
|
throw new \InvalidArgumentException(
|
|
'You cannot create a RejectedPromise with a promise.'
|
|
);
|
|
}
|
|
|
|
$this->reason = $reason;
|
|
}
|
|
|
|
public function then(
|
|
callable $onFulfilled = null,
|
|
callable $onRejected = null
|
|
): PromiseInterface {
|
|
// If there's no onRejected callback then just return self.
|
|
if (!$onRejected) {
|
|
return $this;
|
|
}
|
|
|
|
$queue = Utils::queue();
|
|
$reason = $this->reason;
|
|
$p = new Promise([$queue, 'run']);
|
|
$queue->add(static function () use ($p, $reason, $onRejected): void {
|
|
if (Is::pending($p)) {
|
|
try {
|
|
// Return a resolved promise if onRejected does not throw.
|
|
$p->resolve($onRejected($reason));
|
|
} catch (\Throwable $e) {
|
|
// onRejected threw, so return a rejected promise.
|
|
$p->reject($e);
|
|
}
|
|
}
|
|
});
|
|
|
|
return $p;
|
|
}
|
|
|
|
public function otherwise(callable $onRejected): PromiseInterface
|
|
{
|
|
return $this->then(null, $onRejected);
|
|
}
|
|
|
|
public function wait(bool $unwrap = true)
|
|
{
|
|
if ($unwrap) {
|
|
throw Create::exceptionFor($this->reason);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public function getState(): string
|
|
{
|
|
return self::REJECTED;
|
|
}
|
|
|
|
public function resolve($value): void
|
|
{
|
|
throw new \LogicException('Cannot resolve a rejected promise');
|
|
}
|
|
|
|
public function reject($reason): void
|
|
{
|
|
if ($reason !== $this->reason) {
|
|
throw new \LogicException('Cannot reject a rejected promise');
|
|
}
|
|
}
|
|
|
|
public function cancel(): void
|
|
{
|
|
// pass
|
|
}
|
|
}
|