411 lines
12 KiB
PHP
411 lines
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) 2005-2009 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) 2005-2009 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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$includePaths = explode(PATH_SEPARATOR, get_include_path());
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while (count($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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$classTrapped = true;
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break;
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// All types of requires
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case T_REQUIRE:
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case T_REQUIRE_ONCE:
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case T_INCLUDE:
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case T_INCLUDE_ONCE:
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$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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