protected Container::resolveServicesAndParameters($arguments)
Resolves arguments that represent services or variables to the real values.
Parameters
array|\stdClass $arguments: The arguments to resolve.
Return value
array The resolved arguments.
Throws
\Symfony\Component\DependencyInjection\Exception\RuntimeException If a parameter/service could not be resolved.
\Symfony\Component\DependencyInjection\Exception\InvalidArgumentException If an unknown type is met while resolving parameters and services.
File
- core/lib/Drupal/Component/DependencyInjection/Container.php, line 437
Class
- Container
- Provides a container optimized for Drupal's needs.
Namespace
Drupal\Component\DependencyInjection
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | protected function resolveServicesAndParameters($arguments) { // Check if this collection needs to be resolved. if ($arguments instanceof \stdClass) { if ($arguments->type !== 'collection') { throw new InvalidArgumentException(sprintf('Undefined type "%s" while resolving parameters and services.', $arguments->type)); } // In case there is nothing to resolve, we are done here. if (!$arguments->resolve) { return $arguments->value; } $arguments = $arguments->value; } // Process the arguments. foreach ($arguments as $key => $argument) { // For this machine-optimized format, only \stdClass arguments are // processed and resolved. All other values are kept as is. if ($argument instanceof \stdClass) { $type = $argument->type; // Check for parameter. if ($type == 'parameter') { $name = $argument->name; if (!isset($this->parameters[$name])) { $arguments[$key] = $this->getParameter($name); // This can never be reached as getParameter() throws an Exception, // because we already checked that the parameter is not set above. } // Update argument. $argument = $arguments[$key] = $this->parameters[$name]; // In case there is not a machine readable value (e.g. a service) // behind this resolved parameter, continue. if (!($argument instanceof \stdClass)) { continue; } // Fall through. $type = $argument->type; } // Create a service. if ($type == 'service') { $id = $argument->id; // Does the service already exist? if (isset($this->aliases[$id])) { $id = $this->aliases[$id]; } if (isset($this->services[$id])) { $arguments[$key] = $this->services[$id]; continue; } // Return the service. $arguments[$key] = $this->get($id, $argument->invalidBehavior); continue; } // Create private service. elseif ($type == 'private_service') { $id = $argument->id; // Does the private service already exist. if (isset($this->privateServices[$id])) { $arguments[$key] = $this->privateServices[$id]; continue; } // Create the private service. $arguments[$key] = $this->createService($argument->value, $id); if ($argument->shared) { $this->privateServices[$id] = $arguments[$key]; } continue; } // Check for collection. elseif ($type == 'collection') { $value = $argument->value; // Does this collection need resolving? if ($argument->resolve) { $arguments[$key] = $this->resolveServicesAndParameters($value); } else { $arguments[$key] = $value; } continue; } if ($type !== NULL) { throw new InvalidArgumentException(sprintf('Undefined type "%s" while resolving parameters and services.', $type)); } } } return $arguments;} |
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