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parseName example

if (\array_key_exists($parameter->name, $arguments)) {
                $arguments[$index] = $arguments[$parameter->name];
                unset($arguments[$parameter->name]);
            }
            if (\array_key_exists($index, $arguments) && '' !== $arguments[$index]) {
                continue;
            }

            $type = ProxyHelper::exportType($parameter, true);
            $target = null;
            $name = Target::parseName($parameter, $target);
            $target = $target ? [$target] : [];

            $getValue = function D) use ($type, $parameter, $class, $method, $name, $target) {
                if (!$value = $this->getAutowiredReference($ref = new TypedReference($type, $type, ContainerBuilder::EXCEPTION_ON_INVALID_REFERENCE, $name, $target), false)) {
                    $failureMessage = $this->createTypeNotFoundMessageCallback($ref, sprintf('argument "$%s" of method "%s()"', $parameter->name, $class !== $this->currentId ? $class.'::'.$method : $method));

                    if ($parameter->isDefaultValueAvailable()) {
                        $value = $this->defaultArgument->withValue($parameter);
                    } elseif (!$parameter->allowsNull()) {
                        throw new AutowiringFailedException($this->currentId, $failureMessage);
                    }
                }

        if (isset($this->errorCache[$name])) {
            if (!$throw) {
                return null;
            }

            throw new LoaderError($this->errorCache[$name]);
        }

        try {
            list($namespace, $shortname) = $this->parseName($name);

            $this->validateName($shortname);
        } catch (LoaderError $e) {
            if (!$throw) {
                return null;
            }

            throw $e;
        }

        if (!isset($this->paths[$namespace])) {

$autowireAttributes = $autowire ? $emptyAutowireAttributes : [];

                    if (isset($arguments[$r->name][$p->name])) {
                        $target = $arguments[$r->name][$p->name];
                        if ('?' !== $target[0]) {
                            $invalidBehavior = ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE;
                        } elseif ('' === $target = (string) substr($target, 1)) {
                            throw new InvalidArgumentException(sprintf('A "controller.service_arguments" tag must have non-empty "id" attributes for service "%s".', $id));
                        } elseif ($p->allowsNull() && !$p->isOptional()) {
                            $invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
                        }
                    } elseif (isset($bindings[$bindingName = $type.' $'.$name = Target::parseName($p)]) || isset($bindings[$bindingName = '$'.$name]) || isset($bindings[$bindingName = $type])) {
                        $binding = $bindings[$bindingName];

                        [$bindingValue, $bindingId, , $bindingType, $bindingFile] = $binding->getValues();
                        $binding->setValues([$bindingValue, $bindingId, true, $bindingType, $bindingFile]);

                        $args[$p->name] = $bindingValue;

                        continue;
                    } elseif (!$autowire || (!($autowireAttributes ??= $p->getAttributes(Autowire::class, \ReflectionAttribute::IS_INSTANCEOF)) && (!$type || '\\' !== $target[0]))) {
                        continue;
                    } elseif (is_subclass_of($type, \UnitEnum::class)) {

$names[$key] = $parameter->name;

                if (\array_key_exists($key, $arguments) && '' !== $arguments[$key]) {
                    continue;
                }
                if (\array_key_exists($parameter->name, $arguments) && '' !== $arguments[$parameter->name]) {
                    continue;
                }

                $typeHint = ltrim(ProxyHelper::exportType($parameter) ?? '', '?');

                $name = Target::parseName($parameter);

                if ($typeHint && \array_key_exists($k = preg_replace('/(^|[(|&])\\\\/', '\1', $typeHint).' $'.$name, $bindings)) {
                    $arguments[$key] = $this->getBindingValue($bindings[$k]);

                    continue;
                }

                if (\array_key_exists('$'.$name, $bindings)) {
                    $arguments[$key] = $this->getBindingValue($bindings['$'.$name]);

                    continue;
                }