gistfile1.inc

<?php
/**
 * Zfast Library
 *
 * @category   Zfast
 * @package    Zfast_Compiler
 * @subpackage Zfast_Compiler_Detector
 * @copyright  Copyright (c) 2009 Tobias Petry
 * @version    $Id$
 */

/**
 * @see Zfast_Compiler_Detector_Abstract
 */
require_once 'Zfast/Compiler/Detector/Abstract.php';

/**
 * @category   Zfast
 * @package    Zfast_Compiler
 * @subpackage Zfast_Compiler_Detector
 * @copyright  Copyright (c) 2009 Tobias Petry
 * @version    $Id$
 */
class Zfast_Compiler_Detector_Oop extends Zfast_Compiler_Detector_Abstract {
	/**
	 * detects class dependencies
	 * 
	 * @param Zfast_Compiler_Class_Source $source
	 * @return array class- or interfacenames
	 */	
	public function detect(Zfast_Compiler_Class_Source $source) {
		// start tokens (class definition)
		$starttokens = array(
			T_CLASS,
			T_INTERFACE
		);
		
		// end token (class body)
		$endtoken = new Zfast_Compiler_Tokenizer_Token(Zfast_Compiler_Tokenizer_Token::T_OTHER, '{');
		
		// find matches, but include start and end token for next operations
		$matches = $this->_findBetweenTokens($source, $starttokens, $endtoken, 1, true);
		
		// find	dependencies
		$classes = $this->_findDependencies($matches, T_EXTENDS, T_IMPLEMENTS);
		$interfaces = $this->_findDependencies($matches, T_IMPLEMENTS, T_EXTENDS);
		
		// merge dependencies
		$dependencies = array();
		foreach(array_merge($classes, $interfaces) as $token) {
			$dependencies[] = $token->getValue();
		}

		return $dependencies;
	}
	
	/**
	 * finds classnames
	 * 
	 * @param array $tokens
	 * @param int $start
	 * @param int $end
	 * @return array
	 */
	protected function _findDependencies($tokens, $start, $end) {
		// end tokens
		$end = array($end);
		$end[] = new Zfast_Compiler_Tokenizer_Token(Zfast_Compiler_Tokenizer_Token::T_OTHER, '{');
		
		// find declaration
		$declaration = $this->_findBetweenTokens($tokens, $start, $end, 1);
		
		// stripping codes for getting class names
		$stripping = array(
			T_WHITESPACE,
			new Zfast_Compiler_Tokenizer_Token(Zfast_Compiler_Tokenizer_Token::T_OTHER, ',')
		
		);
		
		// get classnames
		$names = $this->_stripTokens($declaration, $stripping);

		return $names;
	}
}

?>