Chris@13: <?php
Chris@13: 
Chris@13: /*
Chris@13:  * This file is part of Psy Shell.
Chris@13:  *
Chris@13:  * (c) 2012-2018 Justin Hileman
Chris@13:  *
Chris@13:  * For the full copyright and license information, please view the LICENSE
Chris@13:  * file that was distributed with this source code.
Chris@13:  */
Chris@13: 
Chris@13: namespace Psy\TabCompletion\Matcher;
Chris@13: 
Chris@13: use InvalidArgumentException;
Chris@13: 
Chris@13: /**
Chris@13:  * An object attribute tab completion Matcher.
Chris@13:  *
Chris@13:  * This matcher provides completion for properties of objects in the current
Chris@13:  * Context.
Chris@13:  *
Chris@13:  * @author Marc Garcia <markcial@gmail.com>
Chris@13:  */
Chris@13: class ObjectAttributesMatcher extends AbstractContextAwareMatcher
Chris@13: {
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function getMatches(array $tokens, array $info = [])
Chris@13:     {
Chris@13:         $input = $this->getInput($tokens);
Chris@13: 
Chris@17:         $firstToken = \array_pop($tokens);
Chris@13:         if (self::tokenIs($firstToken, self::T_STRING)) {
Chris@13:             // second token is the object operator
Chris@17:             \array_pop($tokens);
Chris@13:         }
Chris@17:         $objectToken = \array_pop($tokens);
Chris@17:         if (!\is_array($objectToken)) {
Chris@13:             return [];
Chris@13:         }
Chris@17:         $objectName = \str_replace('$', '', $objectToken[1]);
Chris@13: 
Chris@13:         try {
Chris@13:             $object = $this->getVariable($objectName);
Chris@13:         } catch (InvalidArgumentException $e) {
Chris@13:             return [];
Chris@13:         }
Chris@13: 
Chris@17:         if (!\is_object($object)) {
Chris@13:             return [];
Chris@13:         }
Chris@13: 
Chris@17:         return \array_filter(
Chris@17:             \array_keys(\get_class_vars(\get_class($object))),
Chris@13:             function ($var) use ($input) {
Chris@13:                 return AbstractMatcher::startsWith($input, $var);
Chris@13:             }
Chris@13:         );
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function hasMatched(array $tokens)
Chris@13:     {
Chris@17:         $token     = \array_pop($tokens);
Chris@17:         $prevToken = \array_pop($tokens);
Chris@13: 
Chris@13:         switch (true) {
Chris@13:             case self::tokenIs($token, self::T_OBJECT_OPERATOR):
Chris@13:             case self::tokenIs($prevToken, self::T_OBJECT_OPERATOR):
Chris@13:                 return true;
Chris@13:         }
Chris@13: 
Chris@13:         return false;
Chris@13:     }
Chris@13: }