require phpstan via composer

vendor/phpstan/phpstan/bootstrap.php

@@ -0,0 +1,60 @@
+<?php declare(strict_types = 1);
+
+namespace PHPStan;
+
+use Composer\Autoload\ClassLoader;
+
+final class PharAutoloader
+{
+	/** @var ClassLoader */
+	private static $composerAutoloader;
+
+	final public static function loadClass(string $class): void {
+		if (!extension_loaded('phar') || defined('__PHPSTAN_RUNNING__')) {
+			return;
+		}
+
+		if (strpos($class, '_PHPStan_') === 0) {
+			if (!in_array('phar', stream_get_wrappers(), true)) {
+				throw new \Exception('Phar wrapper is not registered. Please review your php.ini settings.');
+			}
+
+			if (self::$composerAutoloader === null) {
+				self::$composerAutoloader = require 'phar://' . __DIR__ . '/phpstan.phar/vendor/autoload.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/clue/block-react/src/functions_include.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/jetbrains/phpstorm-stubs/PhpStormStubsMap.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/react/promise-stream/src/functions_include.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/react/promise-timer/src/functions_include.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/react/promise/src/functions_include.php';
+				require_once 'phar://' . __DIR__ . '/phpstan.phar/vendor/ringcentral/psr7/src/functions_include.php';
+			}
+			self::$composerAutoloader->loadClass($class);
+
+			return;
+		}
+		if (strpos($class, 'PHPStan\\') !== 0 || strpos($class, 'PHPStan\\PhpDocParser\\') === 0) {
+			return;
+		}
+
+		if (!in_array('phar', stream_get_wrappers(), true)) {
+			throw new \Exception('Phar wrapper is not registered. Please review your php.ini settings.');
+		}
+
+		$filename = str_replace('\\', DIRECTORY_SEPARATOR, $class);
+		if (strpos($class, 'PHPStan\\BetterReflection\\') === 0) {
+			$filename = substr($filename, strlen('PHPStan\\BetterReflection\\'));
+			$filepath = 'phar://' . __DIR__ . '/phpstan.phar/vendor/ondrejmirtes/better-reflection/src/' . $filename . '.php';
+		} else {
+			$filename = substr($filename, strlen('PHPStan\\'));
+			$filepath = 'phar://' . __DIR__ . '/phpstan.phar/src/' . $filename . '.php';
+		}
+
+		if (!file_exists($filepath)) {
+			return;
+		}
+
+		require $filepath;
+	}
+}
+
+spl_autoload_register([PharAutoloader::class, 'loadClass']);