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<?php |
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/** |
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* Copyright (C) 2018 Gerrit Addiks. |
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* This package (including this file) was released under the terms of the GPL-3.0. |
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* You should have received a copy of the GNU General Public License along with this program. |
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* If not, see <http://www.gnu.org/licenses/> or send me a mail so i can send you a copy. |
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* |
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* @license GPL-3.0 |
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* |
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* @author Gerrit Addiks <[email protected]> |
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*/ |
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namespace Addiks\SymfonyGenerics\Services; |
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use Addiks\SymfonyGenerics\Services\ArgumentCompilerInterface; |
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use Addiks\SymfonyGenerics\Arguments\ArgumentFactory\ArgumentFactory; |
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use Addiks\SymfonyGenerics\Arguments\Argument; |
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use Symfony\Component\HttpFoundation\Request; |
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use Webmozart\Assert\Assert; |
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use ErrorException; |
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use ReflectionType; |
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use ReflectionNamedType; |
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use ReflectionFunctionAbstract; |
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use ReflectionParameter; |
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use ReflectionException; |
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use Symfony\Component\HttpFoundation\RequestStack; |
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use Addiks\SymfonyGenerics\Arguments\ArgumentContextInterface; |
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use InvalidArgumentException; |
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use Addiks\SymfonyGenerics\Controllers\ControllerHelperInterface; |
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use ValueObjects\ValueObjectInterface; |
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use Exception; |
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final class ArgumentCompiler implements ArgumentCompilerInterface |
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{ |
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/** |
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* @var ArgumentFactory |
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*/ |
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private $argumentFactory; |
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/** |
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* @var RequestStack |
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*/ |
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private $requestStack; |
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/** |
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* @var ArgumentContextInterface |
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*/ |
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private $argumentContext; |
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/** |
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* @var ControllerHelperInterface |
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*/ |
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private $controllerHelper; |
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public function __construct( |
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ArgumentFactory $argumentFactory, |
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RequestStack $requestStack, |
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ArgumentContextInterface $argumentContext, |
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ControllerHelperInterface $controllerHelper |
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) { |
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$this->argumentFactory = $argumentFactory; |
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$this->requestStack = $requestStack; |
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$this->argumentContext = $argumentContext; |
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$this->controllerHelper = $controllerHelper; |
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} |
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public function understandsArgumentString(string $argumentConfiguration): bool |
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{ |
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return $this->argumentFactory->understandsString($argumentConfiguration); |
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} |
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/** @param array|string $argumentConfiguration */ |
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public function buildArgument($argumentConfiguration, array $additionalData = array()) |
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{ |
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foreach ($additionalData as $key => $value) { |
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$this->argumentContext->set($key, $value); |
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} |
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return $this->resolveArgumentConfiguration($argumentConfiguration); |
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} |
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public function buildArguments( |
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array $argumentsConfiguration, |
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array $additionalData = array() |
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): array { |
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/** @var array $argumentValues */ |
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$argumentValues = array(); |
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foreach ($additionalData as $key => $value) { |
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$this->argumentContext->set($key, $value); |
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} |
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foreach ($argumentsConfiguration as $key => $argumentConfiguration) { |
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/** @var array|string $argumentConfiguration */ |
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$argumentValues[$key] = $this->resolveArgumentConfiguration($argumentConfiguration); |
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} |
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return $argumentValues; |
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} |
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public function buildCallArguments( |
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ReflectionFunctionAbstract $methodReflection, |
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array $argumentsConfiguration, |
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array $predefinedArguments = array(), |
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array $additionalData = array() |
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): array { |
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/** @var array<int, mixed> $callArguments */ |
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$callArguments = array(); |
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foreach ($additionalData as $key => $value) { |
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$this->argumentContext->set($key, $value); |
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} |
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foreach ($methodReflection->getParameters() as $index => $parameterReflection) { |
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/** @var ReflectionParameter $parameterReflection */ |
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if (isset($predefinedArguments[$index])) { |
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$callArguments[$index] = $predefinedArguments[$index]; |
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continue; |
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} |
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$callArguments[$index] = $this->resolveParameterReflection( |
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$parameterReflection, |
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$argumentsConfiguration, |
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$index |
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); |
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} |
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return $callArguments; |
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} |
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/** |
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* @param array|string|bool|object|null $argumentConfiguration |
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* |
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* @return mixed |
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*/ |
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private function resolveArgumentConfiguration($argumentConfiguration) |
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{ |
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Assert::oneOf( |
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gettype($argumentConfiguration), |
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['string', 'array', 'NULL', 'boolean', 'object'], |
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"Arguments must be defined as string, array, bool, object or null!" |
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); |
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/** @var Argument|null $argument */ |
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$argument = null; |
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if (is_bool($argumentConfiguration) || is_null($argumentConfiguration) || is_object($argumentConfiguration)) { |
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return $argumentConfiguration; |
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} else if ($argumentConfiguration === '') { |
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return ''; |
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} elseif (is_array($argumentConfiguration)) { |
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Assert::true($this->argumentFactory->understandsArray($argumentConfiguration), sprintf( |
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"Argument '%s' could not be understood!", |
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preg_replace("/\s+/is", "", var_export($argumentConfiguration, true)) |
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)); |
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$argument = $this->argumentFactory->createArgumentFromArray($argumentConfiguration); |
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} else { |
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Assert::true($this->argumentFactory->understandsString($argumentConfiguration), sprintf( |
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"Argument '%s' could not be understood!", |
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$argumentConfiguration |
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)); |
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$argument = $this->argumentFactory->createArgumentFromString(trim($argumentConfiguration)); |
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} |
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return $argument->resolve(); |
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} |
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/** |
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* @return mixed |
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*/ |
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private function resolveParameterReflection( |
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ReflectionParameter $parameterReflection, |
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array $argumentsConfiguration, |
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int $index |
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) { |
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try { |
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/** @var string $parameterName */ |
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$parameterName = $parameterReflection->getName(); |
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/** @var string|null $parameterTypeName */ |
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$parameterTypeName = $this->getTypeNameFromReflectionParameter($parameterReflection); |
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/** @var Request|null $request */ |
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$request = $this->requestStack->getCurrentRequest(); |
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/** @var mixed $result */ |
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$result = null; |
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if (isset($argumentsConfiguration[$parameterName])) { |
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$result = $this->resolveArgumentConfiguration($argumentsConfiguration[$parameterName]); |
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} elseif (array_key_exists($index, $argumentsConfiguration)) { |
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$result = $this->resolveArgumentConfiguration($argumentsConfiguration[$index]); |
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} elseif ($parameterTypeName === Request::class) { |
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$result = $request; |
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} elseif (is_object($request) && $request->get($parameterName)) { |
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$result = $request->get($parameterName); |
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} else { |
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$result = $this->getDefaultValueFromParameterReflectionSafely($parameterReflection); |
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} |
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if (!empty($parameterTypeName) && (is_string($result) || is_int($result))) { |
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if (is_subclass_of($parameterTypeName, ValueObjectInterface::class)) { |
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$result = call_user_func("{$parameterTypeName}::fromNative", $result); |
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} elseif (class_exists($parameterTypeName)) { |
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$result = $this->controllerHelper->findEntity($parameterTypeName, (string)$result); |
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} |
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} |
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return $result; |
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} catch (Exception $exception) { |
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throw new Exception(sprintf( |
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"While resolving parameter-argument '%s' on call to '%s': %s", |
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$parameterReflection->getName(), |
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$parameterReflection->getDeclaringFunction()->getName(), |
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$exception->getMessage() |
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), 0, $exception); |
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} |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getDefaultValueFromParameterReflectionSafely(ReflectionParameter $parameterReflection) |
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{ |
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if ($parameterReflection->getDeclaringFunction()->isInternal()) { |
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return null; |
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} |
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try { |
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return $parameterReflection->getDefaultValue(); |
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} catch (ReflectionException $exception) { |
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/** @var string $parameterName */ |
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$parameterName = $parameterReflection->getName(); |
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/** @var ReflectionFunctionAbstract $routineReflection */ |
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$routineReflection = $parameterReflection->getDeclaringFunction(); |
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throw new InvalidArgumentException(sprintf( |
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"Missing argument '%s' for the call to '%s'!", |
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$parameterName, |
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$routineReflection->getName() |
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), 0, $exception); |
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} |
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} |
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private function getTypeNameFromReflectionParameter(ReflectionParameter $parameterReflection): ?string |
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{ |
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/** @var string|null $parameterTypeName */ |
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$parameterTypeName = null; |
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if ($parameterReflection->hasType()) { |
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/** @var ReflectionType|ReflectionNamedType|null $parameterType */ |
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$parameterType = $parameterReflection->getType(); |
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if ($parameterType instanceof ReflectionNamedType) { |
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$parameterTypeName = $parameterType->getName(); |
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} elseif ($parameterType instanceof ReflectionType) { |
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$parameterTypeName = $parameterType->__toString(); |
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} |
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} |
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return $parameterTypeName; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.