Flipbox\Transform\Helpers\TransformerHelper

Complexity

Total Complexity

8

Size/Duplication

Total Lines	38
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Test Coverage

Coverage

27.27%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	isTransformer()	0	5	3
A	isTransformerClass()	0	4	2
A	resolve()	0	12	3

<?php

/**
 * @author    Flipbox Factory
 * @copyright Copyright (c) 2017, Flipbox Digital
 * @link      https://github.com/flipbox/transform/releases/latest
 * @license   https://github.com/flipbox/transform/blob/master/LICENSE
 */

namespace Flipbox\Transform\Helpers;

use Flipbox\Transform\Transformers\TransformerInterface;
use Closure;

/**
 * @author Flipbox Factory <hello@flipboxfactory.com>
 * @since 1.0.0
 */
class TransformerHelper
{
    /**
     * @param $transformer
     * @return bool
     */
    public static function isTransformer($transformer): bool
    {
        return (is_object($transformer) && ($transformer instanceof Closure)) ||
            $transformer instanceof TransformerInterface;
    }

    /**
     * @param $transformer
     * @return bool
     */
    public static function isTransformerClass($transformer): bool
    {
        return is_string($transformer) && is_subclass_of($transformer, TransformerInterface::class);

Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if \Flipbox\Transform\Transformers\TransformerInterface::class can be an interface. If so, you could instead use ReflectionClass::implementsInterface.

    }

    /**
     * @param $transformer
     * @return null|callable|TransformerInterface
     */
    public static function resolve($transformer)
    {
        if (static::isTransformer($transformer)) {
            return $transformer;
        }

        if (static::isTransformerClass($transformer)) {
            return new $transformer();
        }

        return null;
    }
}