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<?php
/**
 * 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\Node;

use PHPMD\Rule;

/**
 * Collection of code annotations.
 *
 * @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
 */
class Annotations
{
    /**
     * Detected annotations.
     *
     * @var \PHPMD\Node\Annotation[]
     */
    private $annotations = array();

    /**
     * Regexp used to extract code annotations.
     *
     * @var string
     */
    private $regexp = '(@([a-z_][a-z0-9_]+)\(([^\)]+)\))i';

    /**
     * Constructs a new collection instance.
     *
     * @param \PHPMD\AbstractNode $node
     */
    public function __construct(\PHPMD\AbstractNode $node)
    {
        preg_match_all($this->regexp, $node->getDocComment(), $matches);
        foreach (array_keys($matches[0]) as $i) {
            $name  = $matches[1][$i];
            $value = trim($matches[2][$i], '" ');

            $this->annotations[] = new Annotation($name, $value);
        }
    }
    
    /**
     * Checks if one of the annotations suppresses the given rule.
     *
     * @param \PHPMD\Rule $rule
     * @return boolean
     */
    public function suppresses(Rule $rule)
    {
        foreach ($this->annotations as $annotation) {
            if ($annotation->suppresses($rule)) {
                return true;
            }
        }
        return false;
    }
}