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: /**
Chris@13:  * A constant name tab completion Matcher.
Chris@13:  *
Chris@13:  * This matcher provides completion for all defined constants.
Chris@13:  *
Chris@13:  * @author Marc Garcia <markcial@gmail.com>
Chris@13:  */
Chris@13: class ConstantsMatcher extends AbstractMatcher
Chris@13: {
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function getMatches(array $tokens, array $info = [])
Chris@13:     {
Chris@13:         $const = $this->getInput($tokens);
Chris@13: 
Chris@17:         return \array_filter(\array_keys(\get_defined_constants()), function ($constant) use ($const) {
Chris@13:             return AbstractMatcher::startsWith($const, $constant);
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($prevToken, self::T_NEW):
Chris@13:             case self::tokenIs($prevToken, self::T_NS_SEPARATOR):
Chris@13:                 return false;
Chris@13:             case self::hasToken([self::T_OPEN_TAG, self::T_STRING], $token):
Chris@13:             case self::isOperator($token):
Chris@13:                 return true;
Chris@13:         }
Chris@13: 
Chris@13:         return false;
Chris@13:     }
Chris@13: }