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<?php |
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/** |
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* This file is a part of "Axessors" library. |
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* |
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* @author <[email protected]> |
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* @license GPL |
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*/ |
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namespace NoOne4rever\Axessors; |
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use NoOne4rever\Axessors\Exceptions\AxessorsError; |
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use NoOne4rever\Axessors\Exceptions\InternalError; |
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use NoOne4rever\Axessors\Exceptions\OopError; |
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use NoOne4rever\Axessors\Exceptions\TypeError; |
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/** |
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* Class CallProcessor |
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* |
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* Handles method call. |
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* |
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* @package NoOne4rever\Axessors |
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*/ |
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class CallProcessor |
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{ |
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/** @var string method name */ |
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private $method; |
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/** @var mixed|null an object */ |
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private $object; |
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/** @var mixed call stack */ |
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private $backtrace; |
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/** @var string class name */ |
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private $class; |
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/** @var \ReflectionClass class data */ |
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private $reflection; |
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/** |
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* CallProcessor constructor. |
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* |
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* @param array $backtrace contains call stack |
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* @param mixed|null $object an object the method is called on (might not be given, if the method is static) |
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*/ |
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public function __construct(array $backtrace, $object = null) |
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{ |
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$this->object = $object; |
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$this->class = $backtrace[0]['class']; |
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$this->backtrace = $backtrace[count($backtrace) - 1]; |
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} |
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/** |
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* General function of calling the method. |
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* |
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* Processes method's name to extract property name and checks if the method is accessible. |
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* |
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* @param array $args the arguments of the method called |
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* @param string $method the name of the method called |
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* @return mixed return value of the method called |
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* @throws AxessorsError is thrown when Axessors method not found |
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* @throws OopError is thrown when the method is not accessible |
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*/ |
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public function call(array $args, string $method) |
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{ |
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$data = Data::getInstance(); |
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$classData = $data->getClass($this->class); |
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$this->method = $method; |
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$this->reflection = $classData->reflection; |
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$propertyData = $this->searchMethod($classData, $data); |
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$runner = new MethodRunner(0, $propertyData, $this->class, $this->method, $this->object); |
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return $runner->run($args); |
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} |
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private function searchMethod(ClassData $classData, Data $data): PropertyData |
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{ |
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while (!is_null($classData)) { |
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foreach ($classData->getAllProperties() as $propertyData) { |
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foreach ($propertyData->getMethods() as $modifier => $methods) { |
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foreach ($methods as $method) { |
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if ($this->method === $method) { |
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if ($this->isAccessible($modifier, $classData->reflection)) { |
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return $propertyData; |
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} else { |
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throw new OopError("method $this->class::$this->method() is not accessible there"); |
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} |
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} |
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} |
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} |
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} |
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$classData = $this->getParentClass($classData, $data); |
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} |
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throw new AxessorsError("method {$this->class}::{$this->method}() not found"); |
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} |
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private function getParentClass(ClassData $classData, Data $data): ?ClassData |
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{ |
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$reflection = $classData->reflection->getParentClass(); |
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if ($reflection === false) { |
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throw new InternalError('no parent class found'); |
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} |
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try { |
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return $data->getClass($reflection->name); |
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} catch (InternalError $error) { |
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return null; |
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} |
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} |
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/** |
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* Checks if the method is accessible. |
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* |
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* @param string $accessModifier access modifier |
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* @param \ReflectionClass $reflection class data |
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* @return bool result of the checkout |
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* @throws InternalError if not a valid it's impossible to check accessibility. |
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*/ |
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private function isAccessible(string $accessModifier, \ReflectionClass $reflection): bool |
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{ |
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if ($accessModifier == 'public') { |
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return true; |
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} |
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$isThis = $reflection->name == $this->backtrace['class']; |
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$inThisFile = $this->backtrace['file'] == $reflection->getFileName() && $this->in($reflection); |
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if ($accessModifier == 'private') { |
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return $isThis && $inThisFile; |
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} |
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$isThisBranch = is_subclass_of($this->backtrace['class'], $reflection->name) || is_subclass_of($reflection->name, |
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$this->backtrace['class']); |
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$reflection = new \ReflectionClass($this->class); |
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$inBranchFile = $this->backtrace['file'] == $reflection->getFileName() && $this->in(new \ReflectionClass($this->backtrace['class'])); |
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if ($accessModifier == 'protected') { |
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return ($isThis && $inThisFile) || ($isThis && $inBranchFile) || ($isThisBranch && $inBranchFile); |
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} |
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throw new InternalError('not a valid access modifier given'); |
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} |
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/** |
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* Checks if the method called in right place and it is accessible there. |
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* |
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* @param \ReflectionClass $reflection class data |
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* @return bool result of the checkout |
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*/ |
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private function in(\ReflectionClass $reflection): bool |
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{ |
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return $reflection->getStartLine() <= $this->backtrace['line'] && $reflection->getEndLine() >= $this->backtrace['line']; |
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} |
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} |
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NoOne4rever /
Axessors
