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<?php
declare (strict_types=1);
namespace Rector\Core\Stubs;
final class PHPStanStubLoader
{
/**
* @var string[]
*/
private const STUBS = ['ReflectionUnionType.php', 'Attribute.php'];
/**
* @var string[]
*/
private const VENDOR_PATHS = [
// 1. relative path with composer require rector/rector and run vendor/bin/rector
'vendor',
// 2. relative path with composer require rector/rector with symlink run vendor/bin/rector
__DIR__ . '/../../vendor',
// 3. run outside project like in https://getrector.org/ from docker, so it look up // vendor/rector/rector/bin/rector
__DIR__ . '/../../../../../vendor',
];
/**
* @var bool
*/
private $areStubsLoaded = \false;
/**
* @see https://github.com/phpstan/phpstan/issues/4541#issuecomment-779434916
*
* Point possible vendor locations by use the __DIR__ as start to locate
* @see https://github.com/rectorphp/rector/pull/5581 that may not detected in https://getrector.org/ which uses docker to run
*/
public function loadStubs() : void
{
if ($this->areStubsLoaded) {
return;
}
foreach (self::VENDOR_PATHS as $vendorPath) {
$vendorPath = \realpath($vendorPath);
if ($vendorPath === \false) {
continue;
}
if ($vendorPath === '') {
continue;
}
foreach (self::STUBS as $stub) {
$path = $this->getStubPath($vendorPath, $stub);
if ($path === null) {
continue 2;
}
require_once $path;
}
$this->areStubsLoaded = \true;
// already loaded? stop loop
break;
}
}
private function getStubPath(string $vendorPath, string $stub) : ?string
{
$path = \sprintf('phar://%s/phpstan/phpstan/phpstan.phar/stubs/runtime/%s', $vendorPath, $stub);
$isExists = \file_exists($path);
if ($isExists) {
return $path;
}
return null;
}
}
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