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<?php |
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declare(strict_types=1); |
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namespace Selami\Stdlib; |
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use ReflectionMethod; |
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use ReflectionParameter; |
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use Selami\Stdlib\Exception\InvalidArgumentException; |
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use ReflectionException; |
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class Resolver |
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{ |
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/** |
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* @param string $className |
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* @param string $methodName |
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* @return array |
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* @throws InvalidArgumentException |
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*/ |
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public static function getParameterHints(string $className, string $methodName) : array |
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{ |
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self::checkClassName($className); |
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self::checkMethodName($className, $methodName); |
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$method = new ReflectionMethod($className, $methodName); |
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/** |
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* @var array $parameters |
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*/ |
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$parameters = $method->getParameters(); |
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$parameterHints = []; |
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foreach ($parameters as $param) { |
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$parameter = self::getParamType($param); |
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$parameterHints[$parameter['name']] = $parameter['type']; |
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} |
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return $parameterHints; |
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} |
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private static function checkClassName(string $className) : void |
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{ |
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if (! class_exists($className)) { |
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throw new InvalidArgumentException( |
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sprintf('%s class does not exist!', $className) |
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); |
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} |
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} |
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private static function checkMethodName(string $className, string $methodName) : void |
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{ |
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if (! method_exists($className, $methodName)) { |
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throw new InvalidArgumentException( |
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sprintf('%s does not have method named %s!', $className, $methodName) |
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); |
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} |
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} |
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/** |
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* @param ReflectionParameter $parameter |
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* @return array |
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* @throws InvalidArgumentException |
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*/ |
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private static function getParamType(ReflectionParameter $parameter) :array |
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{ |
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$type = $parameter->getType(); |
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if ($type->isBuiltin()) { |
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return ['name' => $parameter->name, 'type' => (string) $type]; |
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} |
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try { |
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return ['name' => $parameter->name, 'type' =>$parameter->getClass()->name]; |
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} catch (ReflectionException $e) { |
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throw new InvalidArgumentException($e->getMessage()); |
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} |
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} |
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} |
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selamiphp /
stdlib
