diff --git a/src/Symfony/Component/DependencyInjection/Loader/Configurator/AbstractConfigurator.php b/src/Symfony/Component/DependencyInjection/Loader/Configurator/AbstractConfigurator.php
index 23e64bb94f821..9527a3cbefb81 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/Configurator/AbstractConfigurator.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/Configurator/AbstractConfigurator.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
+use Symfony\Component\DependencyInjection\Argument\AbstractArgument;
 use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
@@ -85,6 +86,7 @@ public static function processValue($value, $allowServices = false)
             case $value instanceof Definition:
             case $value instanceof Expression:
             case $value instanceof Parameter:
+            case $value instanceof AbstractArgument:
             case $value instanceof Reference:
                 if ($allowServices) {
                     return $value;
diff --git a/src/Symfony/Component/DependencyInjection/Loader/Configurator/ContainerConfigurator.php b/src/Symfony/Component/DependencyInjection/Loader/Configurator/ContainerConfigurator.php
index 16eb471645b8d..727857efd5f2d 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/Configurator/ContainerConfigurator.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/Configurator/ContainerConfigurator.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
+use Symfony\Component\DependencyInjection\Argument\AbstractArgument;
 use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
 use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument;
 use Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument;
@@ -82,6 +83,14 @@ final public function withPath(string $path): self
     }
 }
 
+/**
+ * Creates a parameter.
+ */
+function param(string $name): string
+{
+    return '%'.$name.'%';
+}
+
 /**
  * Creates a service reference.
  *
@@ -165,3 +174,11 @@ function expr(string $expression): Expression
 {
     return new Expression($expression);
 }
+
+/**
+ * Creates an abstract argument.
+ */
+function abstract_arg(string $description): AbstractArgument
+{
+    return new AbstractArgument($description);
+}