/**
* Merges a ContainerBuilder with the current ContainerBuilder configuration.
*
* Service definitions overrides the current defined ones.
*
* But for parameters, they are overridden by the current ones. It allows
* the parameters passed to the container constructor to have precedence
* over the loaded ones.
*
* $container = new ContainerBuilder(array('foo' => 'bar'));
* $loader = new LoaderXXX($container);
* $loader->load('resource_name');
* $container->register('foo', new stdClass());
*
* In the above example, even if the loaded resource defines a foo
* parameter, the value will still be 'bar' as defined in the ContainerBuilder
* constructor.
*/
public function merge(ContainerBuilder $container)
{
if (true === $this->isFrozen()) {
throw new \LogicException('Cannot merge on a frozen container.');
}
$this->addDefinitions($container->getDefinitions());
$this->addAliases($container->getAliases());
$this->parameterBag->add($container->getParameterBag()->all());
foreach ($container->getResources() as $resource) {
$this->addResource($resource);
}
foreach ($container->getExtensionContainers() as $name => $container) {
if (isset($this->extensionContainers[$name])) {
$this->extensionContainers[$name]->merge($container);
} else {
$this->extensionContainers[$name] = $container;
}
}
}
/**
* @covers Symfony\Components\DependencyInjection\ContainerBuilder::getResources
* @covers Symfony\Components\DependencyInjection\ContainerBuilder::addResource
*/
public function testResources()
{
$container = new ContainerBuilder();
$container->addResource($a = new FileResource(__DIR__ . '/Fixtures/xml/services1.xml'));
$container->addResource($b = new FileResource(__DIR__ . '/Fixtures/xml/services2.xml'));
$this->assertEquals(array($a, $b), $container->getResources(), '->getResources() returns an array of resources read for the current configuration');
}
