1	<?php
2
3	declare(strict_types=1);
4
5	namespace Celemas\Core\Factory;
6
7	use Celemas\Core\Exception\RuntimeException;
8
9	/** @api */
10	final class Discovery
11	{
12	/** @var array<class-string<Factory>, non-empty-array<int, non-empty-string>> */
13	private const CANDIDATES = [
14	Nyholm::class => [
15	'Nyholm\\Psr7\\Factory\\Psr17Factory',
16	'Nyholm\\Psr7Server\\ServerRequestCreator',
17	],
18	Guzzle::class => [
19	'GuzzleHttp\\Psr7\\HttpFactory',
20	],
21	Laminas::class => [
22	'Laminas\\Diactoros\\RequestFactory',
23	],
24	];
25
26	public static function create(): Factory
27	{
28	foreach (self::CANDIDATES as $factoryClass => $probeClasses) {
29	foreach ($probeClasses as $probeClass) {
30	if (!class_exists($probeClass)) {
31	continue 2;
32	}
33	}
34
35	return new $factoryClass();
36	}
37
38	throw new RuntimeException(
39	'No supported PSR-7 implementation found. Install one of: '
40	. 'nyholm/psr7 with nyholm/psr7-server, guzzlehttp/psr7, or laminas/laminas-diactoros',
41	);
42	}
43	}

---

Branches

Below are the source code lines that represent each code branch as identified by Xdebug. Please note a branch is not necessarily coterminous with a line, a line may contain multiple branches and therefore show up more than once. Please also be aware that some branches may be implicit rather than explicit, e.g. an if statement always has an else as part of its logical flow even if you didn't write one.

Discovery->create

28	foreach (self::CANDIDATES as $factoryClass => $probeClasses) {

28	foreach (self::CANDIDATES as $factoryClass => $probeClasses) {

28	foreach (self::CANDIDATES as $factoryClass => $probeClasses) {
29	foreach ($probeClasses as $probeClass) {

29	foreach ($probeClasses as $probeClass) {

30	if (!class_exists($probeClass)) {

30	if (!class_exists($probeClass)) {

30	if (!class_exists($probeClass)) {

30	if (!class_exists($probeClass)) {

31	continue 2;

29	foreach ($probeClasses as $probeClass) {

29	foreach ($probeClasses as $probeClass) {
30	if (!class_exists($probeClass)) {
31	continue 2;
32	}
33	}
34
35	return new $factoryClass();

28	foreach (self::CANDIDATES as $factoryClass => $probeClasses) {
29	foreach ($probeClasses as $probeClass) {
30	if (!class_exists($probeClass)) {
31	continue 2;
32	}
33	}
34
35	return new $factoryClass();
36	}
37
38	throw new RuntimeException(
39	'No supported PSR-7 implementation found. Install one of: '
40	. 'nyholm/psr7 with nyholm/psr7-server, guzzlehttp/psr7, or laminas/laminas-diactoros',
41	);
42	}