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PATH: home / lab2454c / vaultchip.com / vendor / react / promise / src

<?php

namespace React\Promise;

class CancellationQueue
{
    private $started = false;
    private $queue = [];

public function __invoke()
    {
        if ($this->started) {
            return;
        }

$this->started = true;
        $this->drain();
    }

public function enqueue($cancellable)
    {
        if (!\is_object($cancellable) || !\method_exists($cancellable, 'then') || !\method_exists($cancellable, 'cancel')) {
            return;
        }

$length = \array_push($this->queue, $cancellable);

if ($this->started && 1 === $length) {
            $this->drain();
        }
    }

private function drain()
    {
        for ($i = key($this->queue); isset($this->queue[$i]); $i++) {
            $cancellable = $this->queue[$i];

$exception = null;

try {
                $cancellable->cancel();
            } catch (\Throwable $exception) {
            } catch (\Exception $exception) {
            }

unset($this->queue[$i]);

if ($exception) {
                throw $exception;
            }
        }

$this->queue = [];
    }
}

[-] FulfilledPromise.php [edit]
[-] ExtendedPromiseInterface.php [edit]
[-] UnhandledRejectionException.php [edit]
[+] ..
[+] Exception
[-] PromiseInterface.php [edit]
[-] LazyPromise.php [edit]
[-] CancellationQueue.php [edit]
[-] functions_include.php [edit]
[-] Promise.php [edit]
[-] RejectedPromise.php [edit]
[-] CancellablePromiseInterface.php [edit]
[-] functions.php [edit]
[-] PromisorInterface.php [edit]
[-] Deferred.php [edit]