--- /dev/null
+<?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;
+
+/**
+ * This class is used to remove circular dependencies between individual passes.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class Compiler
+{
+ private $passConfig;
+ private $log = array();
+ private $loggingFormatter;
+ private $serviceReferenceGraph;
+
+ public function __construct()
+ {
+ $this->passConfig = new PassConfig();
+ $this->serviceReferenceGraph = new ServiceReferenceGraph();
+ $this->loggingFormatter = new LoggingFormatter();
+ }
+
+ /**
+ * Returns the PassConfig.
+ *
+ * @return PassConfig The PassConfig instance
+ */
+ public function getPassConfig()
+ {
+ return $this->passConfig;
+ }
+
+ /**
+ * Returns the ServiceReferenceGraph.
+ *
+ * @return ServiceReferenceGraph The ServiceReferenceGraph instance
+ */
+ 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
+ */
+ 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
+ */
+ public function compile(ContainerBuilder $container)
+ {
+ foreach ($this->passConfig->getPasses() as $pass) {
+ $pass->process($container);
+ }
+ }
+}