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<?php |
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declare(strict_types=1); |
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namespace Ray\Di; |
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use Ray\Aop\MethodInterceptor; |
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use Ray\Aop\MethodInvocation; |
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use Ray\Di\Di\Assisted; |
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use Ray\Di\Di\Inject; |
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use Ray\Di\Di\InjectInterface; |
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use Ray\Di\Di\Named; |
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use ReflectionAttribute; |
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use ReflectionNamedType; |
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use ReflectionParameter; |
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use function assert; |
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use function call_user_func_array; |
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use function get_class; |
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use function in_array; |
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use function is_callable; |
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/** |
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* Assisted injection interceptor for #[Inject] attributed parameter |
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*/ |
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final class AssistedInjectInterceptor implements MethodInterceptor |
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{ |
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/** @var InjectorInterface */ |
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private $injector; |
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/** @var MethodInvocationProvider */ |
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private $methodInvocationProvider; |
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public function __construct(InjectorInterface $injector, MethodInvocationProvider $methodInvocationProvider) |
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{ |
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$this->injector = $injector; |
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$this->methodInvocationProvider = $methodInvocationProvider; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function invoke(MethodInvocation $invocation) |
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{ |
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$this->methodInvocationProvider->set($invocation); |
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$params = $invocation->getMethod()->getParameters(); |
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$namedArguments = $this->getNamedArguments($invocation); |
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foreach ($params as $param) { |
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/** @var list<ReflectionAttribute> $inject */ |
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$inject = $param->getAttributes(InjectInterface::class, ReflectionAttribute::IS_INSTANCEOF); |
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/** @var list<ReflectionAttribute> $assisted */ |
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$assisted = $param->getAttributes(Assisted::class); |
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if (isset($assisted[0]) || isset($inject[0])) { |
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/** @psalm-suppress MixedAssignment */ |
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$namedArguments[$param->getName()] = $this->getDependency($param); |
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} |
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} |
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$callable = [$invocation->getThis(), $invocation->getMethod()->getName()]; |
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assert(is_callable($callable)); |
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return call_user_func_array($callable, $namedArguments); |
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} |
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/** |
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* @return array<string, mixed> |
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*/ |
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private function getNamedArguments(MethodInvocation $invocation): array |
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{ |
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$args = $invocation->getArguments(); |
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$params = $invocation->getMethod()->getParameters(); |
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$namedParams = []; |
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foreach ($params as $param) { |
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$pos = $param->getPosition(); |
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if (isset($args[$pos])) { |
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/** @psalm-suppress MixedAssignment */ |
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$namedParams[$param->getName()] = $args[$pos]; |
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} |
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} |
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return $namedParams; |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getDependency(ReflectionParameter $param) |
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{ |
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$named = (string) $this->getName($param); |
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$type = $param->getType(); |
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assert($type instanceof ReflectionNamedType || $type === null); |
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$typeName = $type ? $type->getName() : ''; |
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$interface = in_array($typeName, Argument::UNBOUND_TYPE) ? '' : $typeName; |
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/** @var class-string $interface */ |
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return $this->injector->getInstance($interface, $named); |
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} |
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private function getName(ReflectionParameter $param): ?string |
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{ |
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/** @var list<ReflectionAttribute> $nameds */ |
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$nameds = $param->getAttributes(Named::class); |
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if (isset($nameds[0])) { |
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$named = $nameds[0]->newInstance(); |
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assert($named instanceof Named); |
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return $named->value; |
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} |
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if ($param->getAttributes(Inject::class)) { |
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return null; |
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} |
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return $this->getCustomInject($param); |
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} |
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/** |
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* @return ?class-string |
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*/ |
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private function getCustomInject(ReflectionParameter $param): ?string |
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{ |
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/** @var list<ReflectionAttribute> $injects */ |
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$injects = $param->getAttributes(InjectInterface::class, ReflectionAttribute::IS_INSTANCEOF); |
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if (! $injects) { |
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return null; |
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} |
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$inject = $injects[0]->newInstance(); |
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assert($inject instanceof InjectInterface); |
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return get_class($inject); |
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} |
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} |
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koriym /
Ray.Di
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