Sunrise\Http\Router\Helper\ClassFinder

Complexity

Total Complexity

9

Size/Duplication

Total Lines	69
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	getDirClasses()	0	32	5
A	getFileClasses()	0	19	4

<?php

/**
 * It's free open-source software released under the MIT License.
 *
 * @author Anatoly Nekhay <afenric@gmail.com>
 * @copyright Copyright (c) 2018, Anatoly Nekhay
 * @license https://github.com/sunrise-php/http-router/blob/master/LICENSE
 * @link https://github.com/sunrise-php/http-router
 */

declare(strict_types=1);

namespace Sunrise\Http\Router\Helper;

use Generator;
use InvalidArgumentException;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
use ReflectionClass;
use ReflectionException;
use RegexIterator;
use SplFileInfo;

use function get_declared_classes;
use function is_dir;
use function is_file;
use function realpath;
use function sprintf;

/**
 * @since 3.0.0
 */
final class ClassFinder
{
    /**
     * @return Generator<class-string, ReflectionClass<object>>
     *
     * @throws InvalidArgumentException
     * @throws ReflectionException
     */
    public static function getDirClasses(string $dirname): Generator
    {
        if (!is_dir($dirname)) {
            throw new InvalidArgumentException(sprintf(
                'The directory "%s" does not exist.',
                $dirname,
            ));
        }

        /** @var iterable<string, SplFileInfo> $files */
        $files = new RegexIterator(
            new RecursiveIteratorIterator(
                new RecursiveDirectoryIterator($dirname)
            ),
            '/\.php$/',
        );

        /** @var array<string, true> $filenames */
        $filenames = [];
        foreach ($files as $file) {
            $filename = $file->getRealPath();
            (static function (string $filename): void {
                require_once $filename;
            })($filename);

            $filenames[$filename] = true;
        }

        foreach (get_declared_classes() as $className) {
            $classReflection = new ReflectionClass($className);
            if (isset($filenames[$classReflection->getFileName()])) {
                yield $className => $classReflection;
            }
        }
    }

    /**
     * @return Generator<class-string, ReflectionClass<object>>
     *
     * @throws InvalidArgumentException
     * @throws ReflectionException
     */
    public static function getFileClasses(string $filename): Generator
    {
        if (!is_file($filename)) {
            throw new InvalidArgumentException(sprintf(
                'The file "%s" does not exist.',
                $filename,
            ));
        }

        /** @var non-empty-string $filename */
        $filename = realpath($filename);
        (static function (string $filename): void {
            require_once $filename;
        })($filename);

        foreach (get_declared_classes() as $className) {
            $classReflection = new ReflectionClass($className);
            if ($classReflection->getFileName() === $filename) {
                yield $className => $classReflection;
            }
        }
    }
}