<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2020 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\TabCompletion\Matcher;
abstract class AbstractDefaultParametersMatcher extends AbstractContextAwareMatcher
{
/**
* @param \ReflectionParameter[] $reflectionParameters
*
* @return array
*/
public function getDefaultParameterCompletion(array $reflectionParameters)
{
$parametersProcessed = [];
foreach ($reflectionParameters as $parameter) {
if (!$parameter->isDefaultValueAvailable()) {
return [];
}
$defaultValue = $this->valueToShortString($parameter->getDefaultValue());
$parametersProcessed[] = "\${$parameter->getName()} = $defaultValue";
}
if (empty($parametersProcessed)) {
return [];
}
return [\implode(', ', $parametersProcessed) . ')'];
}
/**
* Takes in the default value of a parameter and turns it into a
* string representation that fits inline.
* This is not 100% true to the original (newlines are inlined, for example).
*
* @param mixed $value
*
* @return string
*/
private function valueToShortString($value)
{
if (!\is_array($value)) {
return \json_encode($value);
}
$chunks = [];
$chunksSequential = [];
$allSequential = true;
foreach ($value as $key => $item) {
$allSequential = $allSequential && \is_numeric($key) && $key === \count($chunksSequential);
$keyString = $this->valueToShortString($key);
$itemString = $this->valueToShortString($item);
$chunks[] = "{$keyString} => {$itemString}";
$chunksSequential[] = $itemString;
}
$chunksToImplode = $allSequential ? $chunksSequential : $chunks;
return '[' . \implode(', ', $chunksToImplode) . ']';
}
}