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<?php |
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/** |
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* This file is part of PHP Mess Detector. |
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* |
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* Copyright (c) Manuel Pichler <[email protected]>. |
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* All rights reserved. |
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* |
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* Licensed under BSD License |
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* For full copyright and license information, please see the LICENSE file. |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @author Manuel Pichler <[email protected]> |
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* @copyright Manuel Pichler. All rights reserved. |
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* @license https://opensource.org/licenses/bsd-license.php BSD License |
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* @link http://phpmd.org/ |
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*/ |
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namespace PHPMD\Rule\CleanCode; |
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use PDepend\Source\AST\ASTValue; |
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use PHPMD\AbstractNode; |
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use PHPMD\AbstractRule; |
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use PHPMD\Rule\FunctionAware; |
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use PHPMD\Rule\MethodAware; |
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/** |
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* Check for a boolean flag in the method/function signature. |
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* |
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* Boolean flags are signs for single responsibility principle violations. |
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*/ |
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class BooleanArgumentFlag extends AbstractRule implements MethodAware, FunctionAware |
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{ |
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/** |
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* This method checks if a method/function has boolean flag arguments and warns about them. |
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* |
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* @param \PHPMD\AbstractNode $node |
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* @return void |
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*/ |
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public function apply(AbstractNode $node) |
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{ |
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foreach ($node->findChildrenOfType('FormalParameter') as $param) { |
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$declarator = $param->getFirstChildOfType('VariableDeclarator'); |
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$value = $declarator->getValue(); |
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if (false === $this->isBooleanValue($value)) { |
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continue; |
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} |
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$this->addViolation($param, array($node->getImage(), $declarator->getImage())); |
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} |
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} |
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private function isBooleanValue(ASTValue $value = null) |
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{ |
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return $value && $value->isValueAvailable() && ($value->getValue() === true || $value->getValue() === false); |
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} |
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} |
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If you implement
__calland you know which methods are available, you can improve IDE auto-completion and static analysis by adding a @method annotation to the class.This is often the case, when
__callis implemented by a parent class and only the child class knows which methods exist: