Add support for annotations 2 (#1013)

* Remove call to deprecated method

It is no longer necessary since v1.10, and is removed in v2.0

* Add support for annotations 2

It should allow other packages to add support for doctrine/lexer 3

composer.json

@@ -18,7 +18,7 @@
         "ext-reflection": "*",
         "ext-spl": "*",
         "ext-tokenizer": "*",
-        "doctrine/annotations": "^1.13",
+        "doctrine/annotations": "^1.13 || ^2.0",
         "phpbench/container": "^2.1",
         "phpbench/dom": "~0.3.1",
         "psr/log": "^1.1 || ^2.0 || ^3.0",

lib/Benchmark/Metadata/AnnotationReader.php

@@ -13,7 +13,6 @@
 namespace PhpBench\Benchmark\Metadata;
 
 use Doctrine\Common\Annotations\AnnotationException;
-use Doctrine\Common\Annotations\AnnotationRegistry;
 use Doctrine\Common\Annotations\DocParser;
 use Doctrine\Common\Annotations\TokenParser;
 use PhpBench\Reflection\ReflectionClass;
@@ -143,12 +142,6 @@ public function __construct(bool $importUse = false)
         $this->docParser = new DocParser();
         $this->docParser->setIgnoredAnnotationNames(self::$globalIgnoredNames);
         $this->importUse = $importUse;
-
-        AnnotationRegistry::registerLoader(function ($classFqn) {
-            if (class_exists($classFqn)) {
-                return true;
-            }
-        });
     }
 
     /**
@@ -197,7 +190,7 @@ private function getUseImports(ReflectionClass $class)
 
         $content = file_get_contents($class->path);
         $tokenizer = new TokenParser('<?php ' . $content);
-        $useImports = $tokenizer->parseUseStatements($class->namespace);
+        $useImports = $tokenizer->parseUseStatements($class->namespace ?? '');
         $this->useImports[$class->class] = $useImports;
 
         return $useImports;
@@ -212,7 +205,7 @@ private function getUseImports(ReflectionClass $class)
     private function parse($input, $context = ''): array
     {
         try {
-            $annotations = @$this->docParser->parse($input, $context);
+            $annotations = @$this->docParser->parse($input ?? '', $context);
         } catch (AnnotationException $e) {
             if (!preg_match('/The annotation "(.*)" .* was never imported/', $e->getMessage(), $matches)) {
                 throw new CouldNotLoadMetadataException($e->getMessage(), 0, $e);