/**
* Returns a service instance for the passed in identifying type name. If the
* instance does not exist, it creates one.
*
* @param Type $IdentifyingType
* @param Injector $Injector
* @return object
* @throws ServiceNotDefined
*/
public function getService(Type $IdentifyingType, Injector $Injector)
{
$identifyingTypeName = $IdentifyingType->getName();
if (isset($this->builtServices[$identifyingTypeName])) {
return $this->builtServices[$identifyingTypeName];
}
$ServiceDefinition = $this->ServiceDefinitions->get($IdentifyingType);
if (is_null($ServiceDefinition)) {
$callerFilePath = debug_backtrace()[0]['file'];
$callerLineNumber = debug_backtrace()[0]['line'];
throw new ServiceNotDefined($IdentifyingType->getName(), $callerFilePath, $callerLineNumber);
}
if ($ServiceDefinition->hasFactoryFunction()) {
$InjectionTarget = new InjectionTargetClosure($ServiceDefinition->getFactoryFunction());
$Service = $Injector->resolve($InjectionTarget);
$this->ensureValueImplementsIdentifyingType($ServiceDefinition, $Service);
} else {
$InjectionTarget = new InjectionTargetConstructor($ServiceDefinition->getImplementingType());
$Service = $Injector->resolve($InjectionTarget);
}
$this->builtServices[$identifyingTypeName] = $Service;
if ($ServiceDefinition->hasInitFunction()) {
$InjectionTarget = new InjectionTargetClosure($ServiceDefinition->getInitFunction());
$Injector->resolve($InjectionTarget);
}
return $Service;
}
/**
* @test
*/
public function If_a_service_is_not_defined_with_a_factory_function_the_constructor_of_that_service_gets_injected_with_the_required_services()
{
// given
$serviceDefinitions = new ServiceDefinitions();
$serviceDefinitions->add(IdentifyingType::is(Type::fromName('tueena\\spec\\core\\stubs\\D')), ImplementingType::isTheSame())->add(IdentifyingType::is(Type::fromName('tueena\\spec\\core\\stubs\\E')), ImplementingType::isTheSame());
$ServiceFactory = new ServiceFactory($serviceDefinitions);
$Target = new Injector($ServiceFactory);
$PropertyDOfE = null;
$Closure = function (\tueena\spec\core\stubs\E $E) use(&$PropertyDOfE) {
$PropertyDOfE = $E->D;
};
// when
$Target->resolve(new InjectionTargetClosure($Closure));
// then
$this->assertInstanceOf('tueena\\spec\\core\\stubs\\D', $PropertyDOfE);
}