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<?php |
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/** |
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* This file is part of the Stack package. |
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* |
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* (c) Andrzej Kostrzewa <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Stack\DI\Definition\Source; |
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/** |
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* Reads DI class definitions using reflection. |
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* |
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* @author Andrzej Kostrzewa <[email protected]> |
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*/ |
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class Autowiring extends AbstractDefinitionSource |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($name) |
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{ |
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if ($this->has($name)) { |
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return $this->definitions[$name]; |
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} |
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if (!class_exists($name) && !interface_exists($name)) { |
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return; |
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} |
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$autowiring = function ($name) { |
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$class = new \ReflectionClass($name); |
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$constructor = $class->getConstructor(); |
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if ($constructor && $constructor->isPublic()) { |
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$parameters = $this->getParametersDefinition($constructor); |
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if ($constructor->getNumberOfRequiredParameters() !== count($parameters)) { |
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return; |
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} |
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$object = $class->newInstanceArgs($parameters); |
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$this->set($name, $object); |
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return $object; |
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} |
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$object = $class->newInstanceWithoutConstructor(); |
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$this->set($name, $object); |
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return $object; |
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}; |
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return $autowiring($name); |
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} |
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/** |
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* Get constructor parameters definitions. |
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* |
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* @param \ReflectionFunctionAbstract $constructor |
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* |
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* @return array |
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*/ |
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public function getParametersDefinition(\ReflectionFunctionAbstract $constructor) |
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{ |
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$parameters = []; |
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foreach ($constructor->getParameters() as $index => $parameter) { |
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if ($parameter->isOptional()) { |
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continue; |
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} |
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$parameterClass = $parameter->getClass(); |
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if ($parameterClass) { |
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$parameters[$index] = $this->getClassDefinition($parameterClass); |
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} |
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} |
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return $parameters; |
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} |
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/** |
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* Get Class definition for constructor parameter. |
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* |
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* @param \ReflectionClass $parameterClass |
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* |
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* @return mixed|null|object |
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*/ |
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private function getClassDefinition(\ReflectionClass $parameterClass) |
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{ |
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$parameterClassName = $parameterClass->getName(); |
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$entryReference = new \ReflectionClass($parameterClass->getName()); |
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$argumentParams = false; |
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if ($entryReference->getConstructor()) { |
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$argumentParams = $entryReference->getConstructor()->getParameters(); |
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} |
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return $argumentParams ? $this->get($parameterClassName) : new $parameterClassName(); |
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} |
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} |
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devstackphp /
di
