/
InstancePropertyPerClassLimitSniff.php
66 lines (54 loc) · 1.66 KB
/
InstancePropertyPerClassLimitSniff.php
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<?php declare(strict_types=1);
namespace ObjectCalisthenics\Sniffs\CodeAnalysis;
use ObjectCalisthenics\Helper\ClassAnalyzer;
use ObjectCalisthenics\Helper\PropertyFilter;
use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
final class InstancePropertyPerClassLimitSniff implements Sniff
{
/**
* @var int
*/
public $maxCount = 2;
/**
* @return int[]
*/
public function register(): array
{
return [T_CLASS, T_TRAIT];
}
/**
* @param File $file
* @param int $position
*/
public function process(File $file, $position): void
{
$properties = ClassAnalyzer::getClassProperties($file, $position);
$objectOnlyProperties = PropertyFilter::filterOutScalarProperties($properties);
$propertyCountByType = $this->countPropertiesByType($objectOnlyProperties);
foreach ($propertyCountByType as $type => $count) {
if ($count <= $this->maxCount) {
continue;
}
$message = sprintf(
'There are %d properties of "%s" type. Can be up to %d properties in total.',
$count,
$type,
$this->maxCount
);
$file->addError($message, $position, self::class);
}
}
/**
* @return int[]
*/
private function countPropertiesByType(array $properties): array
{
$propertyCountByType = [];
foreach ($properties as $property) {
$counter = $propertyCountByType[$property['type']] ?? 0;
$propertyCountByType[$property['type']] = ++$counter;
}
return $propertyCountByType;
}
}