public function testSingletonWithPersistence()
{
$container = new Container();
$container->singleton('mySingleton', '\\stdClass');
$stdClass = $container->build('mySingleton');
$stdClass->testVar = 'value';
$stdClass2 = $container->build('mySingleton');
$this->assertEquals('value', $stdClass2->testVar);
}
/**
* Convert a callback expression to a valid PHP callback.
*
* @param string|array $id
* A callback expression; any of the following.
*
* @return array
* A PHP callback. Do not serialize (b/c it may include an object).
* @throws \RuntimeException
*/
public function get($id)
{
if (!is_string($id)) {
// An array or object does not need to be further resolved.
return $id;
}
if (strpos($id, '::') !== FALSE) {
// Callback: Static method.
return explode('::', $id);
} elseif (strpos($id, '://') !== FALSE) {
$url = parse_url($id);
switch ($url['scheme']) {
case 'obj':
// Object: Lookup in container.
return Container::singleton()->get($url['host']);
case 'call':
// Callback: Object/method in container.
$obj = Container::singleton()->get($url['host']);
return array($obj, ltrim($url['path'], '/'));
case 'api3':
// Callback: API.
return new ResolverApi($url);
case 'global':
// Lookup in a global variable.
return new ResolverGlobalCallback($url['query'], $url['host'] . (isset($url['path']) ? rtrim($url['path'], '/') : ''));
default:
throw new \RuntimeException("Unsupported callback scheme: " . $url['scheme']);
}
} elseif (in_array($id, array('0', '1'))) {
// Callback: Constant value.
return new ResolverConstantCallback((int) $id);
} elseif ($id[0] >= 'A' && $id[0] <= 'Z') {
// Object: New/default instance.
return new $id();
} else {
// Callback: Function.
return $id;
}
}
/**
* Test object-lookup in the container.
*/
public function testObj()
{
// Note: ResolverTestExampleService is implemented at the bottom of this file.
Container::singleton()->set('callbackTestService', new ResolverTestExampleService());
$obj = $this->resolver->get('obj://callbackTestService');
$this->assertTrue($obj instanceof ResolverTestExampleService);
}
protected function registerAccessHandler()
{
$this->container->singleton('access', function ($app) {
return $app->build(AccessHandler::class);
});
}
