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Current File : /var/www/clients/client3/web2/web/vendor/webonyx/graphql-php/src/Executor/Promise/Promise.php

<?php

declare(strict_types=1);

namespace GraphQL\Executor\Promise;

use GraphQL\Executor\Promise\Adapter\SyncPromise;
use GraphQL\Utils\Utils;
use React\Promise\Promise as ReactPromise;

/**
 * Convenience wrapper for promises represented by Promise Adapter
 */
class Promise
{
    /** @var SyncPromise|ReactPromise */
    public $adoptedPromise;

    /** @var PromiseAdapter */
    private $adapter;

    /**
     * @param mixed $adoptedPromise
     */
    public function __construct($adoptedPromise, PromiseAdapter $adapter)
    {
        Utils::invariant(! $adoptedPromise instanceof self, 'Expecting promise from adapted system, got ' . self::class);

        $this->adapter        = $adapter;
        $this->adoptedPromise = $adoptedPromise;
    }

    /**
     * @return Promise
     */
    public function then(?callable $onFulfilled = null, ?callable $onRejected = null)
    {
        return $this->adapter->then($this, $onFulfilled, $onRejected);
    }
}