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<?php
/**
 * Intermediate class parsing structure.
 *
 * phpDocumentor :: automatic documentation generator
 * 
 * PHP versions 4 and 5
 *
 * Copyright (c) 2001-2007 Gregory Beaver
 * 
 * LICENSE:
 * 
 * This library is free software; you can redistribute it
 * and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any
 * later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * @category  ToolsAndUtilities
 * @package   phpDocumentor
 * @author    Greg Beaver <cellog@php.net>
 * @copyright 2001-2007 Gregory Beaver
 * @license   http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @version   CVS: $Id: Classes.inc 243933 2007-10-10 01:18:25Z ashnazg $
 * @filesource
 * @link      http://www.phpdoc.org
 * @link      http://pear.php.net/PhpDocumentor
 * @see       parserDocBlock, parserInclude, parserPage, parserClass
 * @see       parserDefine, parserFunction, parserMethod, parserVar
 * @since     1.0rc1
 * @todo      CS cleanup - change package to PhpDocumentor
 */
/**
 * Intermediate class parsing structure.
 *
 * The {@link phpDocumentor_IntermediateParser} class uses this class and its
 * cousin, {@link ProceduralPages} to organize all parsed source code elements.
 * Data is fed to each immediately after it is parsed, and at conversion time,
 * everything is organized.
 *
 * The Classes class is responsible for all inheritance, including resolving
 * name conflicts between classes, determining which classes extend other
 * classes, and is responsible for all inheritance of documentation.
 * {@internal
 * This structure parses classes, vars and methods by file, and then iterates
 * over the class tree to set up inheritance.  The {@link Inherit()}
 * method is the meat of the class, and processes the class trees from root to
 * branch, ensuring that parsing order is unimportant.}}
 *
 * @category  ToolsAndUtilities
 * @package   phpDocumentor
 * @author    Greg Beaver <cellog@php.net>
 * @copyright 2001-2007 Gregory Beaver
 * @license   http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @version   Release: 1.4.4
 * @link      http://www.phpdoc.org
 * @link      http://pear.php.net/PhpDocumentor
 * @since     1.0rc1
 * @todo      CS cleanup - change package to PhpDocumentor
 */
class Classes
{
    /**#@+
     * @access private
     */
    /**
     * file being parsed, used in every add function to match up elements with 
     * the file that contains them
     *
     * This variable is used during parsing to associate class elements added
     * to the data structures that contain them with the file they reside in
     * @see addClass(), addMethod(), addVar(), nextFile()
     * @var string
     */
    var $curfile;
    /**
     * class being parsed, used to match up methods and vars with their parent
     * class
     *
     * This variable is used during parsing to associate class elements added
     * to the data structures that contain them with the file they reside in
     * @see addMethod(), addVar()
     * @var string
     */
    var $curclass;
    
    /**
     * Used when a definite match is made between a parent class and a child
     * class
     *
     * This variable is used in post-parsing.
     *
     * Format:<pre>
     * array(
     *     parent => array(
     *         parentfile => array(
     *             child => childfile
     *         )
     *     )
     * )</pre>
     * @var array
     */
    var $definitechild;
    /**
     * array of parsed classes organized by the name of the file that contains
     * the class.
     *
     * Format:<pre>
     * array(
     *     filename => array(
     *         classname => {@link parserClass}
     *     )
     * )</pre>
     * @var array
     */
    var $classesbyfile = array();
    /**
     * array of file names organized by classes that are in the file.
     *
     * This structure is designed to handle name conflicts.  Two files can
     * contain classes with the same name, and this array will record both
     * filenames to help control linking and inheritance errors
     *
     * Format:<pre>
     * array(
     *     classname => array(
     *         name of file containing classname,
     *         name of file 2 containing classname,
     *         ...
     *     )
     * )</pre>
     * @var array
     */
    var $classesbynamefile = array();
    /**
     * array of parsed methods organized by the file that contains them.
     *
     * Format:<pre>
     * array(
     *     filename => array(
     *         classname => array(
     *             {@link parserMethod} 1, 
     *             {@link parserMethod} 2,
     *             ...
     *         )
     *     )
     * )</pre>
     * @var array
     */
    var $methodsbyfile = array();
    /**
     * array of parsed vars organized by the file that contains them.
     *
     * Format:<pre>
     * array(
     *     filename => array(
     *         classname => array(
     *             {@link parserVar} 1, 
     *             {@link parserVar} 2,
     *             ...
     *         )
     *     )
     * )</pre>
     * @var array
     */
    var $varsbyfile = array();
    /**
     * array of parsed class constants organized by the file that contains them.
     *
     * Format:<pre>
     * array(
     *     filename => array(
     *         classname => array(
     *             {@link parserConst} 1, 
     *             {@link parserConst} 2,
     *             ...
     *         )
     *     )
     * )</pre>
     * @var array
     */
    var $constsbyfile = array();
    /**
     * keeps track of extend declarations by file, used to find inheritance
     *
     * Format:<pre>
     * array(
     *     filename => array(
     *         classname => parentclassname
     *     )
     * )</pre>
     * @var array
     */
    var $extendsbyfile = array();
    /**
     * Keeps track of child classes by file.
     * Since phpDocumentor can document collections of files that contain name
     * conflicts (PHP would give a fatal error), it
     * is impossible to assume a class that declares "extends foo" necessarily
     * extends the class foo in file X.  It could be an
     * extended class of class foo in file Y.  Because of this, phpDocumentor
     * relies on packaging to resolve the name conflict
     * This array keeps track of the packages of a child class
     *
     * Format:<pre>
     * array(
     *     parentclassname => array(
     *         filename => array(
     *             childclassname => array(
     *                 packagename, 
     *                 packagename
     *             )
     *         )
     *     )
     * )</pre>
     * @var array
     */
    var $classchildrenbyfile = array();
    /**
     * Keeps track of class packages found in a file.
     * This is used in {@link getParentClass()} to determine the number of
     * packages in a file, in order to resolve inheritance issues
     * Format:<pre>
     * array(
     *     filename => array(
     *         packagename1, 
     *         packagename2,
     *         ...
     *     )
     * )</pre>
     * @var array
     */
    var $classpackagebyfile = array();
    /**
     * a tree of class inheritance by name.
     *
     * Format:<pre>
     * array(
     *     childname => parentname,
     *     childname1 => parentname1,
     *     rootname => 0, 
     *     ...
     * )</pre>
     * @var array
     * @see Converter::generateSortedClassTreeFromClass()
     */
    var $classparents = array();
    /**
     * Keeps track of package and subpackage for each class name, organized
     * by package
     *
     * Format:<pre>
     * array(
     *     classname => array(
     *         path => array(
     *             package,
     *             subpackage
     *         ),
     *         path2 => array(
     *             package,
     *             subpackage
     *         ),
     *         ...
     *     )
     * )</pre>
     * @var array
     */
    var $classpathpackages = array();
    /**
     * used to delete duplicates in the same package to avoid documentation errors
     *
     * Specifically used in {@link Converter::checkKillClass()}
     */
    var $killclass = array();
    /**
     * array of methods by package and class
     *
     * format:<pre>
     * array(packagename =>
     *         array(classname =>
     *               array(methodname1 => {@link parserMethod} class,
     *                     methodname2 => {@link parserMethod} class,...)
     *                      )
     *              )
     *      )</pre>
     * @var array
     * @see Converter
     */
    var $methods = array();
    
    /**
     * array of class variables by package and class
     *
     * format:<pre>
     * array(packagename =>
     *         array(classname =>
     *                array(variablename1 => {@link parserVar} class,
     *                      variablename2 => {@link parserVar} class,...
     *                     )
     *              )
     *      )</pre>
     * @var array
     * @see Converter
     */
    var $vars = array();
    
    /**
     * array of class variables by package and class
     *
     * format:<pre>
     * array(packagename =>
     *         array(classname =>
     *                array(constname1 => {@link parserConst} class,
     *                      constname2 => {@link parserConst} class,...
     *                     )
     *              )
     *      )</pre>
     * @var array
     * @see Converter
     */
    var $consts = array();
    /**
     * Reverse class_packages_by_file, used to prevent duplicates
     * @var array Format: array(packagename => 1)
     */
    var $revcpbf = array();
    /**
     * All classes with no parents (no extends clause) are tracked in this array
     * by the file that contains them.
     *
     * Format:<pre>
     * array(
     *     classname => array(
     *         name of file1 that contains root classname,
     *         name of file2 that contains root classname,
     *         ...
     *     )
     * )</pre>
     * @var array
     */
    var $roots = array();
    /**
     * All classes with a parent that was not parsed are included in this array
     *
     * Format:<pre>
     * array(
     *     classname => array(
     *         name of file1 that contains root classname,
     *         name of file2 that contains root classname,
     *         ...
     *     )
     * )</pre>
     * @var array
     */
    var $specialRoots = array();
    
    /**
     * array of all files that contain classes with the same name
     * @var array Format: (classname => array(path1, path2,...))
     */
    var $potentialclassconflicts = array();
    
    /**
     * array of all inter-package name conflicts of classes
     *
     * This array allows documentation of PHP namespace conflicts that would
     * occur should a user try to include these files in the same file
     * @var array Format: (classname => array(path1, path2,...))
     */
    var $classconflicts = array();
    /**#@-*/
    /**
     * While parsing, add a class to the list of parsed classes
     *
     * sets up the {@link $classesbyfile, $classesbynamefile, $extendsbyfile},
     * {@link $classchildrenbyfile, $roots} arrays, and sets {@link $curclass}
     *
     * @param parserClass &$element element is a {@link parserClass}
     *
     * @return void
     * @uses addPackageToFile() marks the current class's package as being
     *                          present in a file
     */
    function addClass(&$element)
    {
        $this->curclass   = $element->getName();
        $element->curfile = $this->curfile;
        if (isset($this->classesbyfile[$this->curfile][$this->curclass])) {
            addWarning(PDERROR_ELEMENT_IGNORED, 
                'class', $this->curclass, $this->curfile);
            $this->curclass = false;
            return;
        }
        $this->
            classesbyfile
                [$this->curfile][$this->curclass]
            = $element;
        $this->
            classesbynamefile[$this->curclass][]
            = $this->curfile;
        $this->
            extendsbyfile[$this->curfile][$this->curclass]
            = $element->getExtends();
        $this->
            classchildrenbyfile[$element->getExtends()]
                [$this->curfile][$this->curclass][] 
            = $element->docblock->package;
        if ($element->docblock->getExplicitPackage())
        $this->addPackageToFile($element->docblock->package);
        if (!$element->getExtends()) {
            $this->roots[$this->curclass][] = $this->curfile;
        }
    }
    
    /**
     * While parsing, add a method to the list of parsed methods
     *
     * sets up the {@link $methodsbyfile} array using {@link $curfile} and
     * {@link $curclass}
     *
     * @param parserMethod &$element element is a {@link parserMethod}
     *
     * @return void
     */
    function addMethod(&$element)
    {
        if (!$this->curclass) return;
        $this->methodsbyfile[$this->curfile][$this->curclass][] = $element;
    }
    
    /**
     * While parsing, add a variable to the list of parsed variables
     *
     * sets up the {@link $varsbyfile} array using {@link $curfile} 
     * and {@link $curclass}
     *
     * @param parserVar &$element element is a {@link parserVar}
     *
     * @return void
     */
    function addVar(&$element)
    {
        if (!$this->curclass) return;
        $this->varsbyfile[$this->curfile][$this->curclass][] = $element;
    }
    
    /**
     * While parsing, add a variable to the list of parsed variables
     *
     * sets up the {@link $constsbyfile} array using {@link $curfile} 
     * and {@link $curclass}
     *
     * @param parserConst &$element element is a {@link parserConst}
     *
     * @return void
     */
    function addConst(&$element)
    {
        if (!$this->curclass) return;
        $this->constsbyfile[$this->curfile][$this->curclass][] = $element;
    }
    
    /**
     * Prepare to parse a new file
     *
     * sets {@link $curfile} to $file and {@link $curclass} 
     * to false (no class being parsed)
     *
     * @param string $file file currently being parsed
     *
     * @return void
     */
    function nextFile($file)
    {
        $this->curfile  = $file;
        $this->curclass = false;
    }
    
    /**
     * Mark a package as being used in a class
     *
     * {@source}
     *
     * @param string $package package name
     *
     * @return void
     */
    function addPackageToFile($package)
    {
        if (!isset($this->revcpbf[$this->curfile][$package]))
        $this->classpackagebyfile[$this->curfile][] = $package;
        $this->revcpbf[$this->curfile][$package]    = 1;
    }
    
    /**
     * Find the parent class of $class, and set up structures to note this fact
     *
     * Modifies the {@link parserClass} element in {@link $classesbyfile} to use
     * the parent's package, and inherit methods/vars
     *
     * @param string $class child class to find parent class
     * @param string $file  file child class is located in
     *
     * @return void
     * @uses $definitechild if a match is made between a parent class and parameter
     *                      $class in file $file, then definitechild is set here
     * @uses getParentClass() to find the parent class
     */
    function setClassParent($class,$file)
    {
        if (is_array($par = $this->getParentClass($class, $file))) {
            // (for debugging)
            // phpDocumentor_out("$file class $class extends "
            //    . $par[1] ." file ". $par[0] . "\n");

$this->classesbyfile[$file][$class]->setParent($par[1], $par[0], $this);
            $this->definitechild[$par[1]][$par[0]][$class] = $file;
        } else {
            $this->classesbyfile[$file][$class]->setParentNoClass($par);
        }
    }
    
    /**
     * Main processing engine for setting up class inheritance.
     *
     * This function uses {@link $roots} to traverse the inheritance tree via
     * {@link processChild()} and returns the data structures
     * phpDocumentor_IntermediateParser needs to convert parsed data
     * to output using {@link phpDocumentor_IntermediateParser::Convert()}
     *
     * @param phpDocumentor_IntermediateParser &$render the renderer object
     *
     * @return void
     * @uses processChild() set up inheritance
     * @todo CS Cleanup - rename to "inherit" for CamelCaps naming standard
     */
    function Inherit(&$render)
    {
        phpDocumentor_out("\nProcessing Class Inheritance\n\n");
        flush();
        phpDocumentor_out("\nProcessing Root Trees\n\n");
        flush();
        foreach ($this->roots as $class => $files) {
            for ($i=0; $i<count($files); $i++) {
                $this->processChild($render, $class, $files[$i]);
            }
        }
        if (0)
        foreach ($this->classesbyfile as $i => $j) {
            foreach ($j as $k => $m) {
                var_dump($i, $k);
                if ($i == 'iConverter') {
                    var_dump($j);
                }
            }
        }
        phpDocumentor_out("\nProcessing leftover classes "
            . "(classes that extend root classes not found in the same package)\n");
        flush();
        foreach ($this->classesbyfile as $i => $j) {
            foreach ($j as $k => $m) {
                $this->processChild($render, $k, $i, true);
            }
        }
        phpDocumentor_out("done processing leftover classes\n");
        flush();
        $this->setupClassConflicts();
    }
    
    /**
     * Transfers actual conflicts from {@link $potentialClassconflicts} to
     * {@link $classconflicts}
     *
     * @return void
     * @access private
     * @uses $potentialclassconflicts transfers values to {@link $classconflicts}
     */
    function setupClassConflicts()
    {
        foreach ($this->potentialclassconflicts as $class => $paths) {
            if (count($paths) - 1) { //conflict
                $package = array();
                foreach ($paths as $path) {
                    // create a list of conflicting classes in each package
                    if (isset($this->classpathpackages[$class][$path]))
                    $package[$this->classpathpackages[$class][$path][0]][] = $path;
                }
                foreach ($package as $pathpackages) {
                    /*
                     * if at least 2 functions exist in the same package, 
                     * delete all but the first one and add warnings
                     */
                    if (count($pathpackages) - 1) {
                        for ($i=1; $i < count($pathpackages); $i++) {
                            if (isset($this->classesbyfile[$pathpackages[$i]])) {
                                addWarning(PDERROR_ELEMENT_IGNORED, 
                                    'class', $class, $pathpackages[$i]);
                                $this->killClass($class, $pathpackages[$i]);
                                $oth = array_flip($paths);
                                unset($paths[$oth[$pathpackages[$i]]]);
                            }
                        }
                    }
                }
                $this->classconflicts[$class] = $paths;
            }
        }
    }
    
    /**
     * If a package contains two classes with the same name, this function finds
     * that conflict
     *
     * Returns the {@link $classconflicts} entry for class $class, minus its own path
     *
     * @param mixed $class the class name to search for
     *
     * @return mixed returns false if no conflicts, 
     *               or an array of paths containing conflicts
     */
    function getConflicts($class)
    {
        if (!isset($this->classconflicts[$class])) return false;
        $a = array();
        foreach ($this->classconflicts[$class] as $conflict) {
            $a[$this->classesbyfile[$conflict][$class]->docblock->package] 
                = $this->classesbyfile[$conflict][$class];
        }
        return $a;
    }
    
    /**
     * sets up {@link $killclass} for use by Converter::checkKillClass()
     *
     * @param mixed $class the class
     * @param mixed $path  the path
     *
     * @return void
     * @access private
     */
    function killClass($class,$path)
    {
        $this->killclass[$class][$path] = true;
    }
    
    /**
     * This function recursively climbs up the class tree, setting inherited
     * information like package and adds the elements to 
     * {@link phpDocumentor_IntermediateParser}.
     *
     * Using structures defined in {@link Classes}, 
     * the function first sets package information,
     * and then seeks out child classes.
     * It uses 3 tests to determine whether a class is a child class.
     * <ol>
     *    <li>child class is in the same file as the parent class 
     *        and extends parent class
     *    </li>
     *    <li>child class is in a different file and specifies 
     *        the parent's @package in its docblock
     *    </li>
     *    <li>child class is in a different file and is in a 
     *        different @package, with one possible parent class
     *    </li>
     * </ol>
     *
     * @param phpDocumentor_IntermediateParser &$render the renderer object
     * @param string                           $class   class to process
     * @param string                           $file    name of file $class 
     *                                                  is located in
     * @param boolean                          $furb    flag used privately
     *                                                  to control informational
     *                                                  output while parsing
     *                                                  (used when processing 
     *                                                  leftover classes in 
     *                                                  {@link Inherit()}
     *
     * @return void
     * @global string default package, usually "default"
     */
    function processChild(&$render,$class,$file,$furb = false)
    {
        global $phpDocumentor_DefaultPackageName;
        if (isset($this->classesbyfile[$file][$class]->processed))
            return;
        $this->potentialclassconflicts[$class][] = $file;
        if ($furb)
            phpDocumentor_out("Processing $class in file $file\n");
        flush();
        $this->classesbyfile[$file][$class]->processed = true;

$db = $this->classesbyfile[$file][$class];
        $render->addUses($db, $file);
        if (!$render->parsePrivate) {
            /*
             * if this class has an @access private, 
             * and parse private is disabled, remove it
             */
            if ($db->docblock->hasaccess) {
                $aaa = $db->docblock->getKeyword('access');
                if (is_object($aaa) && $aaa->getString() == 'private') {
                    if (isset($this->varsbyfile[$file]) 
                        && isset($this->varsbyfile[$file][$class])) {
                        unset($this->varsbyfile[$file][$class]);
                    }
                    if (isset($this->methodsbyfile[$file]) 
                        && isset($this->methodsbyfile[$file][$class])) {
                        unset($this->methodsbyfile[$file][$class]);
                    }
                    if (isset($this->constsbyfile[$file]) 
                        && isset($this->constsbyfile[$file][$class])) {
                        unset($this->constsbyfile[$file][$class]);
                    }
                    $this->classesbyfile[$file][$class]->ignore = true;
                    // if this is a root class, remove it from the roots array
                    if (isset($this->roots[$class])) {
                        foreach ($this->roots[$class] as $i => $files) {
                            // find the file key and unset
                            if ($files == $file) 
                                unset($this->roots[$class][$i]);
                        }
                    }
                    /*
                     * if this is a child, remove it from the list 
                     * of child classes of its parent
                     */
                    if ($db->getExtends()) 
                        unset($this->classchildrenbyfile[$db->getExtends()][$file]);
                    return;
                }
            }
        }
        if ($render->packageoutput) {
            if (!in_array($db->docblock->package, $render->packageoutput)) {
                if (isset($this->varsbyfile[$file]) 
                    && isset($this->varsbyfile[$file][$class])) {
                    unset($this->varsbyfile[$file][$class]);
                }
                if (isset($this->methodsbyfile[$file]) 
                    && isset($this->methodsbyfile[$file][$class])) {
                    unset($this->methodsbyfile[$file][$class]);
                }
                if (isset($this->constsbyfile[$file]) 
                    && isset($this->constsbyfile[$file][$class])) {
                    unset($this->constsbyfile[$file][$class]);
                }
                $this->classesbyfile[$file][$class]->ignore = true;
                if (isset($this->roots[$class])) {
                    foreach ($this->roots[$class] as $i => $files) {
                        if ($files == $file) unset($this->roots[$class][$i]);
                    }
                }
                if ($db->getExtends()) 
                    unset($this->classchildrenbyfile[$db->getExtends()][$file]);
                return;
            }
        }
        $this->setClassParent($class, $file);
        $db = $this->classesbyfile[$file][$class];
        if ($furb && !is_array($db->parent)) {
            // debug("furb adding $class $file to roots");
            $this->specialRoots[$db->parent][] = array($class, $file);
        }
        // fix for 591396
        if (!$db->docblock->getExplicitPackage()) {
            $a = $render->proceduralpages->pagepackages[$file];
            if ($a[0] != $phpDocumentor_DefaultPackageName) {
                // inherit page package
                $this->classesbyfile[$file][$class]->docblock->package = $a[0];
            }
        }
        if ($this->classesbyfile[$file][$class]->docblock->package 
            == $render->proceduralpages->pagepackages[$file][0]) {
            if ($this->classesbyfile[$file][$class]->docblock->subpackage == '') {
                $this->classesbyfile[$file][$class]->docblock->subpackage 
                    = $render->proceduralpages->pagepackages[$file][1];
            }
        }
        $db = $this->classesbyfile[$file][$class];
        $render->addPackageParent($db);
        $render->addPageIfNecessary($file, $db);
        if ($access = $db->docblock->getKeyword('access')) {
            if (!is_string($access) && is_object($access)) 
                $access = $access->getString();
            if (!is_string($access)) 
                $access = 'public';
            if (($access == 'private') && (!$render->parsePrivate)) {
                if (isset($this->varsbyfile[$file]) 
                    && isset($this->varsbyfile[$file][$class])) {
                    foreach ($this->varsbyfile[$file][$class] as $i => $vr) {
                        $vr->docblock->addKeyword('access', 'private');
                        $this->varsbyfile[$file][$class][$i] = $vr;
                    }
                }
                if (isset($this->methodsbyfile[$file]) 
                    && isset($this->methodsbyfile[$file][$class])) {
                    foreach ($this->methodsbyfile[$file][$class] as $i => $vr) {
                        $vr->docblock->addKeyword('access', 'private');
                        $this->methodsbyfile[$file][$class][$i] = $vr;
                    }
                }
                if (isset($this->constsbyfile[$file]) 
                    && isset($this->constsbyfile[$file][$class])) {
                    foreach ($this->constsbyfile[$file][$class] as $i => $vr) {
                        $vr->docblock->addKeyword('access', 'private');
                        $this->constsbyfile[$file][$class][$i] = $vr;
                    }
                }
            }
        }
        $this->classpathpackages[$class][$file] 
            = array($db->docblock->package,$db->docblock->subpackage);
        if ($db->docblock->getExplicitPackage()) {
            $render->proceduralpages->
                addClassPackageToFile($file, 
                    $db->docblock->package, $db->docblock->subpackage);
        }
        $render->addElementToPage($db, $file);
        if (isset($this->varsbyfile[$file]) 
            && isset($this->varsbyfile[$file][$class])) {
            foreach ($this->varsbyfile[$file][$class] as $i => $vr) {
                $vr->docblock->package    = $db->docblock->package;
                $vr->docblock->subpackage = $db->docblock->subpackage;
                $render->addElementToPage($vr, $file);
                $render->addUses($vr, $file);
                $this->varsbyfile[$file][$class][$i]                        = $vr;
                $this->vars[$db->docblock->package][$class][$vr->getName()] = $vr;
            }
        }
        if (isset($this->methodsbyfile[$file]) 
            && isset($this->methodsbyfile[$file][$class])) {
            foreach ($this->methodsbyfile[$file][$class] as $i => $vr) {
                $vr->docblock->package    = $db->docblock->package;
                $vr->docblock->subpackage = $db->docblock->subpackage;
                $render->addElementToPage($vr, $file);
                $render->addUses($vr, $file);
                $this->methodsbyfile[$file][$class][$i]                        = $vr;
                $this->methods[$db->docblock->package][$class][$vr->getName()] = $vr;
            }
        }
        if (isset($this->constsbyfile[$file]) 
            && isset($this->constsbyfile[$file][$class])) {
            foreach ($this->constsbyfile[$file][$class] as $i => $vr) {
                $vr->docblock->package    = $db->docblock->package;
                $vr->docblock->subpackage = $db->docblock->subpackage;
                $render->addElementToPage($vr, $file);
                $render->addUses($vr, $file);
                $this->constsbyfile[$file][$class][$i]                         = $vr;
                $this->methods[$db->docblock->package][$class][$vr->getName()] = $vr;
            }
        }
        $this->classpackages[$class][] 
            = array($db->docblock->package,$db->docblock->subpackage);
        if (is_array($db->parent))
            $this->classparents[$db->docblock->package][$class] = $db->parent[1];
        else
            $this->classparents[$db->docblock->package][$class] = $db->getExtends();
        if (is_array($db->parent)) {
            $z = $this->getClass($db->parent[1], $db->parent[0]);

$this->classchildren[$z->docblock->package][$db->parent[1]][] = $db;
        }
        if (isset($this->classchildrenbyfile[$class])) {
            foreach ($this->classchildrenbyfile[$class] as $childfile => $other) {
                // test 1, inherits in same file (must be same package)
                if ($childfile == $file) {
                    foreach ($other as $child => $packages) {
                        // debug("parent $class same file $child");
                        $this->processChild($render, $child, $childfile);
                        $x = $this->getClass($child, $childfile);
                        if ($x->docblock->package 
                            != $GLOBALS['phpDocumentor_DefaultPackageName']) {
                            // child package need root for class trees
                            if ($x->docblock->package != $db->docblock->package) {
                                // debug("adding $child in $childfile 1");
                                $this->roots[$child][] = $childfile;
                            }
                        }
                    }
                } else {
                    // test 2, different file, same package
                    foreach ($other as $child => $packages) {
                        for ($j=0; $j<count($packages); $j++) {
                            if ($this->classesbyfile[$file][$class]->
                                    docblock->package == $packages[$j]) {
                                $this->processChild($render, $child, $childfile);
                                // debug("$childfile diff file $child, parent $class,
                                //     same package ".$packages[$j]);
                            } else {
                                /*
                                 * test 3, different file, different package, 
                                 * only 1 parent is possible
                                 */
                                if (isset($this->classesbynamefile[$child])) {
                                    // 1 possible parent
                                    if (count($this->classesbynamefile[$class]) 
                                        == 1) {
                                        // debug("$childfile diff file $child, 
                                        //        diff package, 
                                        //        1 possible parent root $class");
                                        $this->processChild($render, 
                                            $child, $childfile);
                                        $x = $this->getClass($child, $childfile);
                                        if ($x->docblock->package 
                                          != $GLOBALS
                                          ['phpDocumentor_DefaultPackageName']) {
                                            // child package need root 
                                            //for class trees
                                            if ($x->docblock->package 
                                                != $db->docblock->package) {
                                                // debug("adding roots 
                                                // $child in $childfile 2");
                                                $this->roots[$child][] = $childfile;
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    
    /**
     * Get the parserClass representation of a class from its name and file
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     *
     * @return parserClass
     */
    function &getClass($class, $file)
    {
        // debug("getClass called with class $class file $file");
        return $this->classesbyfile[$file][$class];
    }
    
    /**
     * Used by {@link parserData::getClasses()} 
     * to retrieve classes defined in file $path
     *
     * retrieves the array entry from {@link $classesbyfile} for $path
     *
     * @param string $path full path to filename
     *
     * @return mixed returns false if no classes defined in the file, 
     *               otherwise returns an array of {@link parserClass}es
     */
    function getClassesInPath($path)
    {
        if (!isset($this->classesbyfile[$path])) return false;
        return $this->classesbyfile[$path];
    }
    
    /**
     * called by {@link parserClass::hasMethods()}.  Should not be directly called
     *
     * @param string $file  file classname is located in
     * @param string $class classname
     *
     * @return bool
     * @access private
     */
    function hasMethods($file, $class)
    {
        return isset($this->methodsbyfile[$file][$class]);
    }
    
    /**
     * called by {@link parserClass::hasConsts()}.  
     * Should not be directly called
     *
     * @param string $file  file classname is located in
     * @param string $class classname
     *
     * @return bool
     * @access private
     */
    function hasConsts($file,$class)
    {
        return isset($this->constsbyfile[$file][$class]);
    }
    
    /**
     * called by {@link parserClass::hasVars()}.  Should not be directly called
     *
     * @param string $file  file classname is located in
     * @param string $class classname
     *
     * @return bool
     * @access private
     */
    function hasVars($file, $class)
    {
        return isset($this->varsbyfile[$file][$class]);
    }
    
    /**
     * called by {@link parserClass::hasMethod()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  method name
     *
     * @return bool
     * @access private
     */
    function hasMethod($class, $file, $name)
    {
        if (!$this->hasMethods($file, $class)) return false;
        for ($i=0; $i<count($this->methodsbyfile[$file][$class]); $i++) {
            if ($this->methodsbyfile[$file][$class][$i]->getName() == $name) 
               return true;
        }
        return false;
    }
    
    /**
     * called by {@link parserClass::hasVar()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  var name
     *
     * @return bool
     * @access private
     */
    function hasVar($class, $file, $name)
    {
        if (!$this->hasVars($file, $class)) return false;
        for ($i=0; $i<count($this->varsbyfile[$file][$class]); $i++) {
            if ($this->varsbyfile[$file][$class][$i]->getName() == $name) 
                return true;
        }
        return false;
    }
    
    /**
     * called by {@link parserClass::hasConst()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  constant name
     *
     * @return bool
     * @access private
     */
    function hasConst($class, $file, $name)
    {
        if (!$this->hasConsts($file, $class)) return false;
        for ($i=0; $i<count($this->constsbyfile[$file][$class]); $i++) {
            if ($this->constsbyfile[$file][$class][$i]->getName() == $name) 
                return true;
        }
        return false;
    }
    
    /**
     * called by {@link parserClass::getMethods()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     *
     * @return mixed
     * @access private
     */
    function &getMethods($class, $file)
    {
        if (!isset($this->methodsbyfile[$file][$class])) {
            $flag = false;
            return $flag;
        }
        return $this->methodsbyfile[$file][$class];
    }
    
    /**
     * called by {@link parserClass::getVars()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     *
     * @return mixed
     * @access private
     */
    function &getVars($class, $file)
    {
        if (!isset($this->varsbyfile[$file][$class])) {
            $flag = false;
            return $flag;
        }
        return $this->varsbyfile[$file][$class];
    }
    
    /**
     * called by {@link parserClass::getConsts()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     *
     * @return mixed
     * @access private
     */
    function &getConsts($class, $file)
    {
        if (!isset($this->constsbyfile[$file][$class])) {
            $flag = false;
            return $flag;
        }
        return $this->constsbyfile[$file][$class];
    }
    
    /**
     * called by {@link parserClass::getMethod()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  method name
     *
     * @return mixed
     * @access private
     */
    function getMethod($class, $file, $name)
    {
        if (!$this->hasMethod($class, $file, $name)) return false;
        for ($i=0; $i<count($this->methodsbyfile[$file][$class]); $i++) {
            if ($this->methodsbyfile[$file][$class][$i]->getName() == $name) 
                return $this->methodsbyfile[$file][$class][$i];
        }
    }
    
    /**
     * called by {@link parserClass::getVar()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  var name
     *
     * @return mixed
     * @access private
     */
    function getVar($class, $file, $name)
    {
        if (!$this->hasVar($class, $file, $name)) return false;
        for ($i=0; $i<count($this->varsbyfile[$file][$class]); $i++) {
            if ($this->varsbyfile[$file][$class][$i]->getName() == $name) 
                return $this->varsbyfile[$file][$class][$i];
        }
    }
    
    /**
     * called by {@link parserClass::getConst()}.  Should not be directly called
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     * @param string $name  const name
     *
     * @return mixed
     * @access private
     */
    function getConst($class, $file, $name)
    {
        if (!$this->hasConst($class, $file, $name)) return false;
        for ($i=0; $i<count($this->constsbyfile[$file][$class]); $i++) {
            if ($this->constsbyfile[$file][$class][$i]->getName() == $name) 
                return $this->constsbyfile[$file][$class][$i];
        }
    }
    
    /**
     * Search for a class in a package
     *
     * @param string $class   classname
     * @param string $package package classname is in
     *
     * @return mixed returns false if no class in $package, 
     *               otherwise returns a {@link parserClass}
     */
    function &getClassByPackage($class, $package)
    {
        if (!isset($this->classesbynamefile[$class])) {
            // removed, too many warnings, not very useful
            // addWarning(PDERROR_CLASS_NOT_IN_PACKAGE,$class,$package);

$flag = false;
            return $flag;
        }
        for ($i=0; $i < count($this->classesbynamefile[$class]); $i++) {
            $cls = 
                $this->classesbyfile[$this->classesbynamefile[$class][$i]][$class];
            $pkg = $cls->getPackage();
            if ($pkg == $package)
                return $cls;
        }
        // addWarning(PDERROR_CLASS_NOT_IN_PACKAGE,$class,$package);

$flag = false;
        return $flag;
    }
    
    /**
     * Find the parent class of a class in file $file
     * uses 3 tests to find the parent classname:
     * <ol>
     *    <li>only one class with the parent classname</li>
     *    <li>more than one class, but only one in the same file as the child</li>
     *    <li>only one parent class in the same package as the child</li>
     * </ol>
     *
     * @param string $class classname
     * @param string $file  file classname is located in
     *
     * @return mixed false if no parent class, 
     *               a string if no parent class found by that name,
     *               and an array(file parentclass is in, parentclassname)
     */
    function getParentClass($class,$file)
    {
        if (!isset($this->classesbyfile[$file][$class])) {
            return false;
        }
        $element = $this->classesbyfile[$file][$class];
        if (!($ex = $element->getExtends())) return false;
        // first check to see if there is one and only one 
        // class with the parent class's name
        if (isset($this->classesbynamefile[$ex])) {
            if (count($this->classesbynamefile[$ex]) == 1) {
                if ($this->classesbyfile
                    [$this->classesbynamefile[$ex][0]][$ex]->ignore) {
                    return $ex;
                }
                return array($this->classesbynamefile[$ex][0],$ex);
            } else {
                // next check to see if there is a parent class in the same file
                if (isset($this->classesbyfile[$file][$ex])) {
                    if ($this->classesbyfile[$file][$ex]->ignore) {
                        return $ex;
                    }
                    return array($file,$ex);
                }
                // next check to see if there is only one package 
                // used in the file, try to resolve it that way
                if (isset($this->classpackagebyfile[$file])) {
                    if (count($this->classpackagebyfile[$file]) == 1) {
                        for ($i=0;$i<count($this->classesbynamefile[$ex]);$i++) {
                            if ($this->classesbyfile
                              [$this->classesbynamefile[$ex][$i]][$ex]->getPackage() 
                               == $this->classpackagebyfile[$file][0]) {
                                if ($this->classesbyfile
                                   [$this->classesbynamefile[$ex][$i]][$ex]->ignore) 
                                    return $ex;
                                return array($this->classesbynamefile[$ex][$i],$ex);
                            }
                        }
                    }
                }
                // name conflict
                addWarning(PDERROR_INHERITANCE_CONFLICT, $class, $file, $ex);
                return $ex;
            }
        } else {
            if (class_exists('ReflectionClass') && class_exists($ex)) {
                $r = new ReflectionClass($ex);
                if ($r->isInternal()) {
                    return $ex; // no warning
                }
            }
            addWarning(PDERROR_PARENT_NOT_FOUND, $class, $ex);
            return $ex;
        }
    }
    
    /**
     * Get a list of all root classes indexed by package.  Used to generate
     * class trees by {@link Converter}
     *
     * @param boolean $all [since phpDocumentor 1.3.0RC6] determines whether to
     *                     return class trees that extend non-parsed classes
     *
     * @return array array(package => array(rootclassname, rootclassname,...),...)
     */
    function getRoots($all = false)
    {
        $roots     = array();
        $temproots = $this->roots;
        if (!$all) {
            foreach ($this->specialRoots as $package => $root) {
                foreach ($root as $parent => $info) {
                    $temproots[$info[0]][] = $info[1];
                }
            }
        }
        foreach ($temproots as $class => $files) {
            if (count($files)) {
                foreach ($files as $i => $boofou) {
                    $x = $this->getClass($class, $files[$i]);

$roots[$x->getPackage()][] = $class;
                }
            }
        }
        foreach ($roots as $package => $root) {
            usort($roots[$package], "strnatcasecmp");
        }
        if ($all) {
            $specialRoots = array();
            foreach ($this->specialRoots as $parent => $classinfo) {
                if (count($classinfo)) {
                    foreach ($classinfo as $i => $info) {
                        $x = $this->getClass($info[0], $info[1]);

$specialRoots[$x->getPackage()][$parent][] = $info[0];
                    }
                }
            }
            foreach ($specialRoots as $package => $root) {
                uksort($specialRoots[$package], "strnatcasecmp");
                foreach ($specialRoots[$package] as $parent => $classes) {
                    usort($specialRoots[$package][$parent], 'strnatcasecmp');
                }
            }
            return array('special' => $specialRoots, 'normal' => $roots);
        }
        return $roots;
    }
    
    /**
     * Get all classes confirmed in parsing 
     * to be descended class $parclass in file $file
     *
     * @param string $parclass name of parent class
     * @param string $file     file parent class is found in
     *
     * @return mixed either false if no children, or array of format
     *         array(childname => childfile,childname2 => childfile2,...)
     * @see parserClass::getChildClassList()
     * @uses $definitechild
     */
    function getDefiniteChildren($parclass, $file)
    {
        if (isset($this->definitechild[$parclass][$file])) 
            return $this->definitechild[$parclass][$file];
        return false;
    }
}
?>