Symfony\Component\DependencyInjection\Compiler\PassConfig::__construct PHP Method

    public function __construct()
    {
        $this->mergePass = new MergeExtensionConfigurationPass();

        $this->afterRemovingPasses = array();
        $this->beforeOptimizationPasses = array();
        $this->beforeRemovingPasses = array();

        $this->optimizationPasses = array(
            new ResolveDefinitionTemplatesPass(),
            new ResolveParameterPlaceHoldersPass(),
            new CheckDefinitionValidityPass(),
            new ResolveReferencesToAliasesPass(),
            new ResolveInvalidReferencesPass(),
            new AnalyzeServiceReferencesPass(true),
            new CheckCircularReferencesPass(),
            new CheckReferenceValidityPass(),
        );

        $this->removingPasses = array(
            new RemovePrivateAliasesPass(),
            new RemoveAbstractDefinitionsPass(),
            new ReplaceAliasByActualDefinitionPass(),
            new RepeatedPass(array(
                new AnalyzeServiceReferencesPass(),
                new InlineServiceDefinitionsPass(),
                new AnalyzeServiceReferencesPass(),
                new RemoveUnusedDefinitionsPass(),
            )),
            new CheckExceptionOnInvalidReferenceBehaviorPass(),
        );
    }