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<?php |
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namespace Wandu\DI\Resolvers; |
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use ReflectionClass; |
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use ReflectionException; |
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use ReflectionFunctionAbstract; |
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use Wandu\DI\ContainerInterface; |
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use Wandu\DI\Contracts\ResolverInterface; |
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use Wandu\DI\Exception\CannotFindParameterException; |
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class BindResolver implements ResolverInterface |
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{ |
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/** @var string */ |
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protected $className; |
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public function __construct($className) |
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{ |
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$this->className = $className; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function resolve(ContainerInterface $container, array $arguments = []) |
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{ |
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$reflClass = new ReflectionClass($this->className); |
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$reflectionMethod = $reflClass->getConstructor(); |
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if (!$reflectionMethod) { |
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$instance = $reflClass->newInstance(); |
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} else { |
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$instance = $reflClass->newInstanceArgs( |
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$this->getParameters($container, $reflectionMethod, $arguments) |
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); |
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} |
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return $instance; |
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} |
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protected function getParameters( |
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ContainerInterface $container, |
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ReflectionFunctionAbstract $reflectionFunction, |
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array $arguments = [] |
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) { |
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$parametersToReturn = static::getSeqArray($arguments); |
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$reflectionParameters = array_slice($reflectionFunction->getParameters(), count($parametersToReturn)); |
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if (!count($reflectionParameters)) { |
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return $parametersToReturn; |
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} |
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/* @var \ReflectionParameter $param */ |
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foreach ($reflectionParameters as $param) { |
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/* |
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* #1. search in arguments by parameter name |
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* #1.1. search in arguments by class name |
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* #2. if parameter has type hint |
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* #2.1. search in container by class name |
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* #3. if has default value, insert default value. |
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* #4. exception |
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*/ |
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$paramName = $param->getName(); |
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try { |
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if (array_key_exists($paramName, $arguments)) { // #1. |
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$parametersToReturn[] = $arguments[$paramName]; |
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continue; |
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} |
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$paramClass = $param->getClass(); |
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if ($paramClass) { // #2. |
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$paramClassName = $paramClass->getName(); |
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if ($container->has($paramClassName)) { // #2.1. |
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$parametersToReturn[] = $container->get($paramClassName); |
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continue; |
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} |
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} |
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if ($param->isDefaultValueAvailable()) { // #3. |
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$parametersToReturn[] = $param->getDefaultValue(); |
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continue; |
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} |
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throw new CannotFindParameterException($paramName); // #4. |
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} catch (ReflectionException $e) { |
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throw new CannotFindParameterException($paramName); |
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} |
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} |
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return $parametersToReturn; |
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} |
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/** |
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* @param array $array |
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* @return array |
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*/ |
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protected static function getSeqArray(array $array) |
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{ |
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$arrayToReturn = []; |
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foreach ($array as $key => $item) { |
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if (is_int($key)) { |
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$arrayToReturn[] = $item; |
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} |
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} |
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return $arrayToReturn; |
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} |
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} |
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Wandu /
Framework
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