105 lines
2.2 KiB
PHP
105 lines
2.2 KiB
PHP
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<?php
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namespace Symfony\Components\Console\Helper;
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use Symfony\Components\Console\Command\Command;
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/*
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* This file is part of the symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* HelperSet represents a set of helpers to be used with a command.
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*
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* @package symfony
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* @subpackage console
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class HelperSet
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{
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protected
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$helpers = array(),
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$command = null;
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public function __construct(array $helpers = array())
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{
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foreach ($helpers as $alias => $helper)
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{
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$this->set($helper, is_int($alias) ? null : $alias);
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}
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}
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/**
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* Sets a helper.
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*
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* @param HelperInterface $value The helper instance
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* @param string $alias An alias
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*/
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public function set(HelperInterface $helper, $alias = null)
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{
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$this->helpers[$helper->getName()] = $helper;
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if (null !== $alias)
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{
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$this->helpers[$alias] = $helper;
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}
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$helper->setHelperSet($this);
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}
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/**
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* Returns true if the helper if defined.
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*
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* @param string $name The helper name
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*
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* @return Boolean true if the helper is defined, false otherwise
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*/
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public function has($name)
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{
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return isset($this->helpers[$name]);
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}
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/**
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* Gets a helper value.
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*
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* @param string $name The helper name
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*
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* @return HelperInterface The helper instance
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*
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* @throws \InvalidArgumentException if the helper is not defined
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*/
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public function get($name)
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{
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if (!$this->has($name))
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{
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throw new \InvalidArgumentException(sprintf('The helper "%s" is not defined.', $name));
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}
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return $this->helpers[$name];
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}
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/**
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* Sets the command associated with this helper set.
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*
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* @param Command $command A Command instance
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*/
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public function setCommand(Command $command = null)
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{
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$this->command = $command;
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}
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/**
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* Gets the command associated with this helper set.
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*
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* @return Command A Command instance
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*/
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public function getCommand()
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{
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return $this->command;
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}
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}
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