412 Zeilen
		
	
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			412 Zeilen
		
	
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Zend Framework
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 *
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 * LICENSE
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 *
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 * This source file is subject to the new BSD license that is bundled
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 * with this package in the file LICENSE.txt.
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 * It is also available through the world-wide-web at this URL:
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 * http://framework.zend.com/license/new-bsd
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 * If you did not receive a copy of the license and are unable to
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 * obtain it through the world-wide-web, please send an email
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 * to license@zend.com so we can send you a copy immediately.
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 *
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 * @category   Zend
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 * @package    Zend_Reflection
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 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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 * @license    http://framework.zend.com/license/new-bsd     New BSD License
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 * @version    $Id$
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 */
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/**
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 * @see Zend_Reflection_Class
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 */
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require_once 'Zend/Reflection/Class.php';
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/**
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 * @see Zend_Reflection_Function
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 */
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require_once 'Zend/Reflection/Function.php';
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/**
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 * @category   Zend
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 * @package    Zend_Reflection
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 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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 * @license    http://framework.zend.com/license/new-bsd     New BSD License
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 */
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class Zend_Reflection_File implements Reflector
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{
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    /**
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     * @var string
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     */
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    protected $_filepath        = null;
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    /**
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     * @var string
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     */
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    protected $_docComment      = null;
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    /**
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     * @var int
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     */
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    protected $_startLine       = 1;
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    /**
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     * @var int
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     */
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    protected $_endLine         = null;
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    /**
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     * @var string[]
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     */
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    protected $_requiredFiles   = array();
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    /**
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     * @var Zend_Reflection_Class[]
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     */
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    protected $_classes         = array();
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    /**
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     * @var Zend_Reflection_Function[]
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     */
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    protected $_functions       = array();
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    /**
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     * @var string
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     */
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    protected $_contents        = null;
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    /**
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     * Constructor
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     *
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     * @param  string $file
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     * @return void
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     */
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    public function __construct($file)
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    {
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        $fileName = $file;
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        if (($fileRealpath = realpath($fileName)) === false) {
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            $fileRealpath = self::findRealpathInIncludePath($file);
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        }
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        if (!$fileRealpath || !in_array($fileRealpath, get_included_files())) {
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            require_once 'Zend/Reflection/Exception.php';
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            throw new Zend_Reflection_Exception('File ' . $file . ' must be required before it can be reflected');
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        }
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        $this->_fileName = $fileRealpath;
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        $this->_contents = file_get_contents($this->_fileName);
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        $this->_reflect();
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    }
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    /**
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     * Find realpath of file based on include_path
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     *
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     * @param  string $fileName
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     * @return string
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     */
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    public static function findRealpathInIncludePath($fileName)
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    {
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        require_once 'Zend/Loader.php';
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        $includePaths = Zend_Loader::explodeIncludePath();
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        while (count($includePaths) > 0) {
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            $filePath = array_shift($includePaths) . DIRECTORY_SEPARATOR . $fileName;
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            if ( ($foundRealpath = realpath($filePath)) !== false) {
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                break;
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            }
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        }
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        return $foundRealpath;
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    }
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    /**
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     * Export
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     *
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     * Required by the Reflector interface.
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     *
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     * @todo   What should this do?
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     * @return null
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     */
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    public static function export()
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    {
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        return null;
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    }
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    /**
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     * Return the file name of the reflected file
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     *
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     * @return string
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     */
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    public function getFileName()
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    {
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        return $this->_fileName;
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    }
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    /**
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     * Get the start line - Always 1, staying consistent with the Reflection API
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     *
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     * @return int
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     */
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    public function getStartLine()
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    {
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        return $this->_startLine;
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    }
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    /**
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     * Get the end line / number of lines
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     *
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     * @return int
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     */
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    public function getEndLine()
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    {
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        return $this->_endLine;
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    }
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    /**
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     * Return the doc comment
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     *
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     * @return string
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     */
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    public function getDocComment()
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    {
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        return $this->_docComment;
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    }
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    /**
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     * Return the docblock
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     *
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     * @param  string $reflectionClass Reflection class to use
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     * @return Zend_Reflection_Docblock
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     */
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    public function getDocblock($reflectionClass = 'Zend_Reflection_Docblock')
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    {
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        $instance = new $reflectionClass($this);
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        if (!$instance instanceof Zend_Reflection_Docblock) {
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            require_once 'Zend/Reflection/Exception.php';
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            throw new Zend_Reflection_Exception('Invalid reflection class specified; must extend Zend_Reflection_Docblock');
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        }
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        return $instance;
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    }
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    /**
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     * Return the reflection classes of the classes found inside this file
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     *
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     * @param  string $reflectionClass Name of reflection class to use for instances
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     * @return array Array of Zend_Reflection_Class instances
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     */
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    public function getClasses($reflectionClass = 'Zend_Reflection_Class')
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    {
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        $classes = array();
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        foreach ($this->_classes as $class) {
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            $instance = new $reflectionClass($class);
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            if (!$instance instanceof Zend_Reflection_Class) {
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                require_once 'Zend/Reflection/Exception.php';
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                throw new Zend_Reflection_Exception('Invalid reflection class provided; must extend Zend_Reflection_Class');
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            }
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            $classes[] = $instance;
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        }
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        return $classes;
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    }
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    /**
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     * Return the reflection functions of the functions found inside this file
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     *
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     * @param  string $reflectionClass Name of reflection class to use for instances
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     * @return array Array of Zend_Reflection_Functions
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     */
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    public function getFunctions($reflectionClass = 'Zend_Reflection_Function')
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    {
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        $functions = array();
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        foreach ($this->_functions as $function) {
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            $instance = new $reflectionClass($function);
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            if (!$instance instanceof Zend_Reflection_Function) {
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                require_once 'Zend/Reflection/Exception.php';
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                throw new Zend_Reflection_Exception('Invalid reflection class provided; must extend Zend_Reflection_Function');
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            }
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            $functions[] = $instance;
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        }
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        return $functions;
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    }
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    /**
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     * Retrieve the reflection class of a given class found in this file
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     *
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     * @param  null|string $name
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     * @param  string $reflectionClass Reflection class to use when creating reflection instance
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     * @return Zend_Reflection_Class
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     * @throws Zend_Reflection_Exception for invalid class name or invalid reflection class
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     */
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    public function getClass($name = null, $reflectionClass = 'Zend_Reflection_Class')
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    {
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        if ($name === null) {
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            reset($this->_classes);
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            $selected = current($this->_classes);
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            $instance = new $reflectionClass($selected);
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            if (!$instance instanceof Zend_Reflection_Class) {
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                require_once 'Zend/Reflection/Exception.php';
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                throw new Zend_Reflection_Exception('Invalid reflection class given; must extend Zend_Reflection_Class');
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            }
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            return $instance;
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        }
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        if (in_array($name, $this->_classes)) {
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            $instance = new $reflectionClass($name);
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            if (!$instance instanceof Zend_Reflection_Class) {
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                require_once 'Zend/Reflection/Exception.php';
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                throw new Zend_Reflection_Exception('Invalid reflection class given; must extend Zend_Reflection_Class');
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            }
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            return $instance;
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        }
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        require_once 'Zend/Reflection/Exception.php';
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        throw new Zend_Reflection_Exception('Class by name ' . $name . ' not found.');
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    }
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    /**
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     * Return the full contents of file
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     *
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     * @return string
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     */
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    public function getContents()
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    {
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        return $this->_contents;
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    }
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    /**
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     * Serialize to string
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     *
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     * Required by the Reflector interface
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     *
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     * @todo   What should this serialization look like?
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     * @return string
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     */
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    public function __toString()
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    {
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        return '';
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    }
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    /**
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     * This method does the work of "reflecting" the file
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     *
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     * Uses PHP's tokenizer to perform file reflection.
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     *
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     * @return void
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     */
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    protected function _reflect()
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    {
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        $contents = $this->_contents;
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        $tokens   = token_get_all($contents);
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        $functionTrapped = false;
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        $classTrapped    = false;
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        $requireTrapped  = false;
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        $openBraces      = 0;
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        $this->_checkFileDocBlock($tokens);
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        foreach ($tokens as $token) {
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            /*
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             * Tokens are characters representing symbols or arrays
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             * representing strings. The keys/values in the arrays are
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             *
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             * - 0 => token id,
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             * - 1 => string,
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             * - 2 => line number
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             *
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             * Token ID's are explained here:
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             * http://www.php.net/manual/en/tokens.php.
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             */
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            if (is_array($token)) {
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                $type    = $token[0];
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                $value   = $token[1];
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                $lineNum = $token[2];
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            } else {
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                // It's a symbol
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                // Maintain the count of open braces
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                if ($token == '{') {
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                    $openBraces++;
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                } else if ($token == '}') {
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                    $openBraces--;
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                }
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                continue;
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            }
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            switch ($type) {
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                // Name of something
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                case T_STRING:
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                    if ($functionTrapped) {
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                        $this->_functions[] = $value;
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                        $functionTrapped = false;
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                    } elseif ($classTrapped) {
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                        $this->_classes[] = $value;
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                        $classTrapped = false;
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                    }
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                    continue;
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                // Required file names are T_CONSTANT_ENCAPSED_STRING
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                case T_CONSTANT_ENCAPSED_STRING:
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                    if ($requireTrapped) {
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                        $this->_requiredFiles[] = $value ."\n";
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                        $requireTrapped = false;
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                    }
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                    continue;
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                // Functions
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                case T_FUNCTION:
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                    if ($openBraces == 0) {
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                        $functionTrapped = true;
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                    }
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                    break;
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                // Classes
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                case T_CLASS:
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                case T_INTERFACE:
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                    $classTrapped = true;
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                    break;
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                // All types of requires
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                case T_REQUIRE:
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                case T_REQUIRE_ONCE:
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                case T_INCLUDE:
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                case T_INCLUDE_ONCE:
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                    $requireTrapped = true;
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                    break;
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                // Default case: do nothing
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                default:
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                    break;
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            }
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        }
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        $this->_endLine = count(explode("\n", $this->_contents));
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    }
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    /**
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     * Validate / check a file level docblock
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     *
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     * @param  array $tokens Array of tokenizer tokens
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     * @return void
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     */
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    protected function _checkFileDocBlock($tokens) {
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        foreach ($tokens as $token) {
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            $type    = $token[0];
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            $value   = $token[1];
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            $lineNum = $token[2];
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            if(($type == T_OPEN_TAG) || ($type == T_WHITESPACE)) {
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                continue;
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            } elseif ($type == T_DOC_COMMENT) {
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                $this->_docComment = $value;
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                $this->_startLine  = $lineNum + substr_count($value, "\n") + 1;
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                return;
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            } else {
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                // Only whitespace is allowed before file docblocks
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                return;
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            }
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        }
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    }
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}
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