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<?php
/**
* This file is part of PDepend.
*
* PHP Version 5
*
* Copyright (c) 2008-2017 Manuel Pichler <mapi@pdepend.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.
*
* @copyright 2008-2017 Manuel Pichler. All rights reserved.
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*
* @since 0.9.6
*/
namespace PDepend\Source\AST;
use PDepend\Source\ASTVisitor\ASTVisitor;
use PDepend\Source\Builder\BuilderContext;
/**
* This is a special reference container that is used whenever the keyword
* <b>self</b> is used to reference a class or interface.
*
* @copyright 2008-2017 Manuel Pichler. All rights reserved.
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*
* @since 0.9.6
*/
class ASTSelfReference extends ASTClassOrInterfaceReference
{
/**
* The source image of this node.
*/
const IMAGE = 'self';
/**
* The currently used builder context.
*
* @var BuilderContext
*
* @since 0.10.0
*/
protected $context = null;
/**
* The full qualified class name, including the namespace or namespace name.
*
* @var string
*
* @since 0.10.0
*
* @todo To reduce memory usage, move property into new metadata string
*/
protected $qualifiedName = null;
/**
* Constructs a new type holder instance.
*/
public function __construct(BuilderContext $context, AbstractASTClassOrInterface $target)
{
$this->context = $context;
$this->typeInstance = $target;
}
/**
* Returns the visual representation for this node type.
*
* @return string
*
* @since 0.10.4
*/
public function getImage()
{
return self::IMAGE;
}
/**
* Returns the class or interface instance that this node instance represents.
*
* @return AbstractASTClassOrInterface
*
* @since 0.10.0
*/
public function getType()
{
if ($this->typeInstance == null) {
$this->typeInstance = $this->context
->getClassOrInterface($this->qualifiedName);
}
return $this->typeInstance;
}
/**
* The magic sleep method will be called by PHP's runtime environment right
* before an instance of this class gets serialized. It should return an
* array with those property names that should be serialized for this class.
*
* @return array
*
* @since 0.10.0
*/
public function __sleep()
{
$this->qualifiedName = $this->getType()->getNamespaceName() . '\\' .
$this->getType()->getName();
return array_merge(array('qualifiedName'), parent::__sleep());
}
}