Classes/Console/Mvc/Controller/CommandController.php
protected function mapRequestArgumentsToControllerArguments()
    {
        /** @var Argument $argument */
        foreach ($this->arguments as $argument) {
            $argumentName = $argument->getName();
            if ($this->request->hasArgument($argumentName)) {
                $argument->setValue($this->request->getArgument($argumentName));
                continue;
            }
            if (!$argument->isRequired()) {
                continue;
            }
            $argumentValue = null;
            $commandArgumentDefinition = $this->objectManager->get(CommandArgumentDefinition::class, $argumentName, true, null);
            while ($argumentValue === null) {
                $argumentValue = $this->output->ask(sprintf('<comment>Please specify the required argument "%s":</comment> ', $commandArgumentDefinition->getDashedName()));
            }
            $argument->setValue($argumentValue);
        }
    }
protected function mapRequestArgumentsToControllerArguments()
    {
        /** @var Argument $argument */
        foreach ($this->arguments as $argument) {
            $argumentName = $argument->getName();
            if ($this->request->hasArgument($argumentName)) {
                $argument->setValue($this->request->getArgument($argumentName));
                continue;
            }
            if (!$argument->isRequired()) {
                continue;
            }
            $argumentValue = null;
            $commandArgumentDefinition = $this->objectManager->get(CommandArgumentDefinition::class, $argumentName, true, null);
            while ($argumentValue === null) {
                $argumentValue = $this->output->ask(sprintf('<comment>Please specify the required argument "%s":</comment> ', $commandArgumentDefinition->getDashedName()));
            }
            $argument->setValue($argumentValue);
        }
    }
Maps arguments delivered by the request object to the local controller arguments.