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: abstract class AbstractDefaultParametersMatcher extends AbstractContextAwareMatcher
Chris@13: {
Chris@13:     /**
Chris@13:      * @param \ReflectionParameter[] $reflectionParameters
Chris@13:      *
Chris@13:      * @return array
Chris@13:      */
Chris@13:     public function getDefaultParameterCompletion(array $reflectionParameters)
Chris@13:     {
Chris@13:         $parametersProcessed = [];
Chris@13: 
Chris@13:         foreach ($reflectionParameters as $parameter) {
Chris@13:             if (!$parameter->isDefaultValueAvailable()) {
Chris@13:                 return [];
Chris@13:             }
Chris@13: 
Chris@13:             $defaultValue = $this->valueToShortString($parameter->getDefaultValue());
Chris@13: 
Chris@13:             $parametersProcessed[] = "\${$parameter->getName()} = $defaultValue";
Chris@13:         }
Chris@13: 
Chris@13:         if (empty($parametersProcessed)) {
Chris@13:             return [];
Chris@13:         }
Chris@13: 
Chris@17:         return [\implode(', ', $parametersProcessed) . ')'];
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * Takes in the default value of a parameter and turns it into a
Chris@13:      *  string representation that fits inline.
Chris@13:      * This is not 100% true to the original (newlines are inlined, for example).
Chris@13:      *
Chris@13:      * @param mixed $value
Chris@13:      *
Chris@13:      * @return string
Chris@13:      */
Chris@13:     private function valueToShortString($value)
Chris@13:     {
Chris@17:         if (!\is_array($value)) {
Chris@17:             return \json_encode($value);
Chris@13:         }
Chris@13: 
Chris@13:         $chunks = [];
Chris@13:         $chunksSequential = [];
Chris@13: 
Chris@13:         $allSequential = true;
Chris@13: 
Chris@13:         foreach ($value as $key => $item) {
Chris@17:             $allSequential = $allSequential && \is_numeric($key) && $key === \count($chunksSequential);
Chris@13: 
Chris@13:             $keyString  = $this->valueToShortString($key);
Chris@13:             $itemString = $this->valueToShortString($item);
Chris@13: 
Chris@13:             $chunks[] = "{$keyString} => {$itemString}";
Chris@13:             $chunksSequential[] = $itemString;
Chris@13:         }
Chris@13: 
Chris@13:         $chunksToImplode = $allSequential ? $chunksSequential : $chunks;
Chris@13: 
Chris@17:         return '[' . \implode(', ', $chunksToImplode) . ']';
Chris@13:     }
Chris@13: }