/**
* @test
*/
public function getRequiredTypes_returns_the_required_types_of_the_injection_target()
{
// given
$Closure = function (A $X, B $Y) {
};
$Target = new InjectionTargetClosure($Closure);
// when
$requiredTypes = $Target->getRequiredTypes();
// then
$this->assertEquals(2, count($requiredTypes));
$this->assertTrue(array_key_exists('X', $requiredTypes));
$this->assertEquals('tueena\\spec\\core\\stubs\\A', $requiredTypes['X']->getName());
$this->assertTrue(array_key_exists('Y', $requiredTypes));
$this->assertEquals('tueena\\spec\\core\\stubs\\B', $requiredTypes['Y']->getName());
}
/**
* @param ServiceDefinition $ServiceDefinition
* @param ServiceDefinitions $ServiceDefinitions
* @param ServiceDefinition $InitialServiceDefinition
* @param ServiceDefinition[] $alreadyCheckedRequirements
* @param array[] $trace
* @param \Closure $Closure
*/
private static function throwOnCircularReferenceOfRequiresServicesHelper(ServiceDefinition $ServiceDefinition, ServiceDefinitions $ServiceDefinitions, ServiceDefinition $InitialServiceDefinition, array &$alreadyCheckedRequirements, array $trace, \Closure $Closure = null)
{
if ($Closure === null) {
return;
}
$InjectionTarget = new InjectionTargetClosure($Closure);
foreach ($InjectionTarget->getRequiredTypes() as $requiredType) {
$ServiceDefinition = $ServiceDefinitions->get($requiredType);
if (in_array($ServiceDefinition, $alreadyCheckedRequirements)) {
continue;
}
// The second part of the condition ensures, that no exception is thrown
// if an init function of a service requires the service itself. This
// is absolutely valid.
if ($ServiceDefinition === $InitialServiceDefinition && $trace[0][1] !== 'init') {
self::throwCircularReferenceException($InitialServiceDefinition, $trace);
}
$alreadyCheckedRequirements[] = $ServiceDefinition;
self::throwOnCircularReferenceOfRequiredServices($ServiceDefinition, $ServiceDefinitions, $InitialServiceDefinition, $alreadyCheckedRequirements, $trace);
}
}
