<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\ContainerBuilder;

use Symfony\Component\DependencyInjection\Compiler\PassConfig;

/**

 * This class is used to remove circular dependencies between individual passes.

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 *

 * @api

 */

class Compiler

{

    private $passConfig;

    private $log;

    private $loggingFormatter;

    private $serviceReferenceGraph;

    /**

     * Constructor.

     */

    public function __construct()

    {

        $this->passConfig = new PassConfig();

        $this->serviceReferenceGraph = new ServiceReferenceGraph();

        $this->loggingFormatter = new LoggingFormatter();

        $this->log = array();

    }

    /**

     * Returns the PassConfig.

     *

     * @return PassConfig The PassConfig instance

     *

     * @api

     */

    public function getPassConfig()

    {

        return $this->passConfig;

    }

    /**

     * Returns the ServiceReferenceGraph.

     *

     * @return ServiceReferenceGraph The ServiceReferenceGraph instance

     *

     * @api

     */

    public function getServiceReferenceGraph()

    {

        return $this->serviceReferenceGraph;

    }

    /**

     * Returns the logging formatter which can be used by compilation passes.

     *

     * @return LoggingFormatter

     */

    public function getLoggingFormatter()

    {

        return $this->loggingFormatter;

    }

    /**

     * Adds a pass to the PassConfig.

     *

     * @param CompilerPassInterface $pass A compiler pass

     * @param string                $type The type of the pass

     *

     * @api

     */

    public function addPass(CompilerPassInterface $pass, $type = PassConfig::TYPE_BEFORE_OPTIMIZATION)

    {

        $this->passConfig->addPass($pass, $type);

    }

    /**

     * Adds a log message.

     *

     * @param string $string The log message

     */

    public function addLogMessage($string)

    {

        $this->log[] = $string;

    }

    /**

     * Returns the log.

     *

     * @return array Log array

     */

    public function getLog()

    {

        return $this->log;

    }

    /**

     * Run the Compiler and process all Passes.

     *

     * @param ContainerBuilder $container

     *

     * @api

     */

    public function compile(ContainerBuilder $container)

    {

        foreach ($this->passConfig->getPasses() as $pass) {

            $pass->process($container);

        }

    }

}