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<?php |
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namespace ArgumentResolver\Argument; |
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use Doctrine\Common\Util\ClassUtils; |
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class ArgumentDescriptor |
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{ |
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/** |
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* Get argument descriptions of a callable. |
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* |
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* @param $callable |
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* |
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* @return ArgumentDescriptions |
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*/ |
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public function getDescriptions($callable) |
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{ |
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$reflection = $this->getReflection($callable); |
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$descriptions = new ArgumentDescriptions(); |
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foreach ($reflection->getParameters() as $parameter) { |
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$descriptions->add(new ArgumentDescription( |
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$parameter->name, |
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$parameter->getPosition(), |
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$this->getParameterType($parameter), |
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!$parameter->isOptional(), |
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$parameter->isDefaultValueAvailable() ? $parameter->getDefaultValue() : null |
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)); |
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} |
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return $descriptions; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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public function getValueType($value) |
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{ |
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if (is_object($value)) { |
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return $this->getObjectClass($value); |
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} elseif (is_array($value)) { |
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return ArgumentDescription::TYPE_ARRAY; |
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} |
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return ArgumentDescription::TYPE_SCALAR; |
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} |
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/** |
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* @param \ReflectionParameter $parameter |
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* |
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* @return string |
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*/ |
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private function getParameterType(\ReflectionParameter $parameter) |
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{ |
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if (null !== ($class = $parameter->getClass())) { |
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return $class->name; |
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} elseif ($parameter->isArray()) { |
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return ArgumentDescription::TYPE_ARRAY; |
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} |
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return ArgumentDescription::TYPE_SCALAR; |
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} |
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/** |
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* @param $callable |
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* |
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* @return \ReflectionFunctionAbstract |
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*/ |
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private function getReflection($callable) |
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{ |
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if ($callable instanceof \ReflectionFunctionAbstract) { |
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return $callable; |
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} |
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if (!is_callable($callable)) { |
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throw new \RuntimeException('Got a non-callable'); |
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} elseif (is_array($callable)) { |
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$reflectionClass = new \ReflectionClass($callable[0]); |
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return $reflectionClass->getMethod($callable[1]); |
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} |
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return new \ReflectionFunction($callable); |
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} |
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/** |
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* Get object class. |
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* |
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* It uses the Doctrine's `ClassUtils::getClass` method if exists, else the native `get_class` function. |
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* |
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* @param object $object |
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* |
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* @return string |
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*/ |
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private function getObjectClass($object) |
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{ |
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return class_exists('Doctrine\Common\Util\ClassUtils') ? ClassUtils::getClass($object) : get_class($object); |
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} |
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} |
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sroze /
ArgumentResolver
