/usr/share/php/PHPMD/Rule/CleanCode/StaticAccess.php is in phpmd 2.4.3-1.
This file is owned by root:root, with mode 0o644.
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/**
* This file is part of PHP Mess Detector.
*
* Copyright (c) 2008-2012, Manuel Pichler <mapi@phpmd.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Manuel Pichler nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @author Manuel Pichler <mapi@phpmd.org>
* @copyright 2008-2014 Manuel Pichler. All rights reserved.
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
namespace PHPMD\Rule\CleanCode;
use PDepend\Source\AST\ASTClassOrInterfaceReference;
use PDepend\Source\AST\ASTMethodPostfix;
use PDepend\Source\AST\ASTParentReference;
use PDepend\Source\AST\ASTSelfReference;
use PHPMD\AbstractNode;
use PHPMD\AbstractRule;
use PHPMD\Rule\FunctionAware;
use PHPMD\Rule\MethodAware;
/**
* Check if static access is used in a method.
*
* Static access is known to cause hard dependencies between classes
* and is a bad practice.
*
* @author Benjamin Eberlei <benjamin@qafoo.com>
* @copyright 2008-2014 Manuel Pichler. All rights reserved.
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
class StaticAccess extends AbstractRule implements MethodAware, FunctionAware
{
/**
* Method checks for use of static access and warns about it.
*
* @param \PHPMD\AbstractNode $node
* @return void
*/
public function apply(AbstractNode $node)
{
$exceptions = $this->getExceptionsList();
$nodes = $node->findChildrenOfType('MemberPrimaryPrefix');
foreach ($nodes as $methodCall) {
if (!$this->isStaticMethodCall($methodCall)) {
continue;
}
$className = $methodCall->getChild(0)->getNode()->getImage();
if (in_array(trim($className, " \t\n\r\0\x0B\\"), $exceptions)) {
continue;
}
$this->addViolation($methodCall, array($className, $node->getName()));
}
}
private function isStaticMethodCall($methodCall)
{
return $methodCall->getChild(0)->getNode() instanceof ASTClassOrInterfaceReference &&
$methodCall->getChild(1)->getNode() instanceof ASTMethodPostfix &&
!$this->isCallingParent($methodCall) &&
!$this->isCallingSelf($methodCall);
}
private function isCallingParent($methodCall)
{
return $methodCall->getChild(0)->getNode() instanceof ASTParentReference;
}
private function isCallingSelf($methodCall)
{
return $methodCall->getChild(0)->getNode() instanceof ASTSelfReference;
}
/**
* Gets array of exceptions from property
*
* @return array
*/
private function getExceptionsList()
{
try {
$exceptions = $this->getStringProperty('exceptions');
} catch (\OutOfBoundsException $e) {
$exceptions = '';
}
return array_map(
function ($className) {
return trim($className, " \t\n\r\0\x0B\\");
},
explode(',', $exceptions)
);
}
}
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