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<?php |
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/** |
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* Phoole (PHP7.2+) |
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* |
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* @category Library |
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* @package Phoole\Base |
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* @copyright Copyright (c) 2019 Hong Zhang |
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*/ |
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declare(strict_types=1); |
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namespace Phoole\Base\Reflect; |
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/** |
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* ParameterTrait |
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* |
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* try get parameters of the callable / constructor etc. |
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* |
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* @package Phoole\Base |
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*/ |
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trait ParameterTrait |
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{ |
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/** |
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* Get class/object constructor parameters |
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* |
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* @param string|object $class class name or object |
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* @return \ReflectionParameter[] |
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* @throws \InvalidArgumentException if something goes wrong |
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*/ |
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protected function getConstructorParameters($class): array |
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{ |
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try { |
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$reflector = new \ReflectionClass($class); |
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$constructor = $reflector->getConstructor(); |
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return is_null($constructor) ? [] : $constructor->getParameters(); |
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} catch (\Throwable $e) { |
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throw new \InvalidArgumentException($e->getMessage()); |
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} |
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} |
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/** |
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* Get callable parameters |
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* |
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* @param callable $callable |
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* @return \ReflectionParameter[] |
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* @throws \InvalidArgumentException if something goes wrong |
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*/ |
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protected function getCallableParameters(callable $callable): array |
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{ |
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try { |
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if (is_array($callable)) { // [class, method] |
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$reflector = new \ReflectionClass($callable[0]); |
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$method = $reflector->getMethod($callable[1]); |
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} elseif (is_string($callable) || $callable instanceof \Closure) { // function |
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$method = new \ReflectionFunction($callable); |
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} else { // __invokable |
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$reflector = new \ReflectionClass($callable); |
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$method = $reflector->getMethod('__invoke'); |
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} |
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} catch (\Throwable $e) { |
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throw new \InvalidArgumentException($e->getMessage()); |
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} |
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return $method->getParameters(); |
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} |
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} |
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phoole /
base
