pdepend 1.1.4-1 / usr / share / php / PHP / Depend / Code / ASTFieldDeclaration.php

<?php
/**
 * This file is part of PHP_Depend.
 *
 * PHP Version 5
 *
 * Copyright (c) 2008-2012, 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.
 *
 * @category   PHP
 * @package    PHP_Depend
 * @subpackage Code
 * @author     Manuel Pichler <mapi@pdepend.org>
 * @copyright  2008-2012 Manuel Pichler. All rights reserved.
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    SVN: $Id$
 * @link       http://www.pdepend.org/
 * @since      0.9.6
 */

/**
 * This class represents a field or property declaration of a class.
 *
 * <code>
 * // Simple field declaration
 * class Foo {
 *     protected $foo;
 * }
 *
 * // Field declaration with multiple properties
 * class Foo {
 *     protected $foo = 23
 *               $bar = 42,
 *               $baz = null;
 * }
 * </code>
 *
 * @category   PHP
 * @package    PHP_Depend
 * @subpackage Code
 * @author     Manuel Pichler <mapi@pdepend.org>
 * @copyright  2008-2012 Manuel Pichler. All rights reserved.
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    Release: 1.1.4
 * @link       http://www.pdepend.org/
 * @since      0.9.6
 */
class PHP_Depend_Code_ASTFieldDeclaration extends PHP_Depend_Code_ASTNode
{
    /**
     * The image type of this node.
     */
    const CLAZZ = __CLASS__;

    /**
     * The image type of this node.
     */
    const IMAGE = __CLASS__;

    /**
     * Constructs a new field declaration.
     */
    public function __construct()
    {
        parent::__construct(self::IMAGE);
    }

    /**
     * This method returns a OR combined integer of the declared modifiers for
     * this property.
     *
     * @return integer
     */
    public function getModifiers()
    {
        return $this->getMetadataInteger(5);
    }

    /**
     * This method sets a OR combined integer of the declared modifiers for this
     * node.
     *
     * This method will throw an exception when the value of given <b>$modifiers</b>
     * contains an invalid/unexpected modifier
     *
     * @param integer $modifiers The declared modifiers for this node.
     *
     * @return void
     * @throws InvalidArgumentException If the given modifier contains unexpected
     *                                  values.
     */
    public function setModifiers($modifiers)
    {
        $expected = ~PHP_Depend_ConstantsI::IS_PUBLIC
                  & ~PHP_Depend_ConstantsI::IS_PROTECTED
                  & ~PHP_Depend_ConstantsI::IS_PRIVATE
                  & ~PHP_Depend_ConstantsI::IS_STATIC;

        if (($expected & $modifiers) !== 0) {
            throw new InvalidArgumentException(
                'Invalid field modifiers given, allowed modifiers are ' .
                'IS_PUBLIC, IS_PROTECTED, IS_PRIVATE and IS_STATIC.'
            );
        }

        $this->setMetadataInteger(5, $modifiers);
    }

    /**
     * Returns <b>true</b> if this node is marked as public, otherwise the
     * returned value will be <b>false</b>.
     *
     * @return boolean
     */
    public function isPublic()
    {
        return (($this->getModifiers() & PHP_Depend_ConstantsI::IS_PUBLIC)
                                 === PHP_Depend_ConstantsI::IS_PUBLIC);
    }

    /**
     * Returns <b>true</b> if this node is marked as protected, otherwise the
     * returned value will be <b>false</b>.
     *
     * @return boolean
     */
    public function isProtected()
    {
        return (($this->getModifiers() & PHP_Depend_ConstantsI::IS_PROTECTED)
                                 === PHP_Depend_ConstantsI::IS_PROTECTED);
    }

    /**
     * Returns <b>true</b> if this node is marked as private, otherwise the
     * returned value will be <b>false</b>.
     *
     * @return boolean
     */
    public function isPrivate()
    {
        return (($this->getModifiers() & PHP_Depend_ConstantsI::IS_PRIVATE)
                                 === PHP_Depend_ConstantsI::IS_PRIVATE);
    }

    /**
     * Returns <b>true</b> when this node is declared as static, otherwise
     * the returned value will be <b>false</b>.
     *
     * @return boolean
     */
    public function isStatic()
    {
        return (($this->getModifiers() & PHP_Depend_ConstantsI::IS_STATIC)
                                 === PHP_Depend_ConstantsI::IS_STATIC);
    }

    /**
     * Accept method of the visitor design pattern. This method will be called
     * by a visitor during tree traversal.
     *
     * @param PHP_Depend_Code_ASTVisitorI $visitor The calling visitor instance.
     * @param mixed                       $data    Optional previous calculated data.
     *
     * @return mixed
     * @since 0.9.12
     */
    public function accept(PHP_Depend_Code_ASTVisitorI $visitor, $data = null)
    {
        return $visitor->visitFieldDeclaration($this, $data);
    }

    /**
     * Returns the total number of the used property bag.
     *
     * @return integer
     * @since 0.10.4
     * @see PHP_Depend_Code_ASTNode#getMetadataSize()
     */
    protected function getMetadataSize()
    {
        return 6;
    }
}