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<?php
/*
* This file is part of the webmozart/console package.
*
* (c) Bernhard Schussek <bschussek@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Webmozart\Console\Handler;
use Webmozart\Assert\Assert;
use Webmozart\Console\Api\Args\Args;
use Webmozart\Console\Api\Command\Command;
use Webmozart\Console\Api\IO\IO;
/**
* Delegates command handling to a callable.
*
* @since 1.0
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class CallbackHandler
{
/**
* @var callable
*/
private $callback;
/**
* Creates the command handler.
*
* The passed callback receives three arguments:
*
* * {@link Args} `$args`: The console arguments.
* * {@link IO} `$io`: The I/O.
* * {@link Command} `$command`: The executed command.
*
* The callable should return 0 on success and a positive integer on error.
*
* @param callable $callback The callback to execute when handling a
* command.
*/
public function __construct($callback)
{
Assert::isCallable($callback);
$this->callback = $callback;
}
/**
* {@inheritdoc}
*/
public function handle(Args $args, IO $io, Command $command)
{
return call_user_func($this->callback, $args, $io, $command);
}
}