Merge branch '3.3' into 3.4

* 3.3:
  [Serializer] Fix extra attributes when no group specified
  [Intl] Make intl-data tests pass and save language aliases again
  [Console] Fix CommandTester::setInputs() docblock
  [Serializer] readd default argument value
  [VarDumper] fix trailling comma when dumping an exception
  Remove useless docblocks
  [FrameworkBundle] Fix docblocks
  [PropertyInfo] Remove useless docblocks

ApcClassLoader.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\ApcClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use `composer install --apcu-autoloader` instead.', E_USER_DEPRECATED);
+
 /**
  * ApcClassLoader implements a wrapping autoloader cached in APC for PHP 5.3.
  *
@@ -44,6 +46,8 @@ namespace Symfony\Component\ClassLoader;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Kris Wallsmith <kris@symfony.com>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0. Use `composer install --apcu-autoloader` instead.
  */
 class ApcClassLoader
 {
@@ -57,10 +61,8 @@ class ApcClassLoader
     protected $decorated;
 
     /**
-     * Constructor.
-     *
-     * @param string $prefix    The APC namespace prefix to use.
-     * @param object $decorated A class loader object that implements the findFile() method.
+     * @param string $prefix    The APC namespace prefix to use
+     * @param object $decorated A class loader object that implements the findFile() method
      *
      * @throws \RuntimeException
      * @throws \InvalidArgumentException
@@ -122,8 +124,10 @@ class ApcClassLoader
      */
     public function findFile($class)
     {
-        if (false === $file = apcu_fetch($this->prefix.$class)) {
-            apcu_store($this->prefix.$class, $file = $this->decorated->findFile($class));
+        $file = apcu_fetch($this->prefix.$class, $success);
+
+        if (!$success) {
+            apcu_store($this->prefix.$class, $file = $this->decorated->findFile($class) ?: null);
         }
 
         return $file;

CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+3.3.0
+-----
+
+ * deprecated the component: use Composer instead
+
 3.0.0
 -----
 

ClassCollectionLoader.php

@@ -11,10 +11,16 @@
 
 namespace Symfony\Component\ClassLoader;
 
+if (\PHP_VERSION_ID >= 70000) {
+    @trigger_error('The '.__NAMESPACE__.'\ClassCollectionLoader class is deprecated since version 3.3 and will be removed in 4.0.', E_USER_DEPRECATED);
+}
+
 /**
  * ClassCollectionLoader.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0.
  */
 class ClassCollectionLoader
 {
@@ -43,9 +49,9 @@ class ClassCollectionLoader
 
         self::$loaded[$name] = true;
 
-        $declared = array_merge(get_declared_classes(), get_declared_interfaces(), get_declared_traits());
-
         if ($adaptive) {
+            $declared = array_merge(get_declared_classes(), get_declared_interfaces(), get_declared_traits());
+
             // don't include already declared classes
             $classes = array_diff($classes, $declared);
 
@@ -55,6 +61,11 @@ class ClassCollectionLoader
 
         $classes = array_unique($classes);
 
+        // cache the core classes
+        if (!is_dir($cacheDir) && !@mkdir($cacheDir, 0777, true) && !is_dir($cacheDir)) {
+            throw new \RuntimeException(sprintf('Class Collection Loader was not able to create directory "%s"', $cacheDir));
+        }
+        $cacheDir = rtrim(realpath($cacheDir) ?: $cacheDir, '/'.DIRECTORY_SEPARATOR);
         $cache = $cacheDir.'/'.$name.$extension;
 
         // auto-reload
@@ -84,46 +95,105 @@ class ClassCollectionLoader
             }
         }
 
-        if (!$reload && is_file($cache)) {
+        if (!$reload && file_exists($cache)) {
             require_once $cache;
 
             return;
         }
-
-        $files = array();
-        $content = '';
-        foreach (self::getOrderedClasses($classes) as $class) {
-            if (in_array($class->getName(), $declared)) {
-                continue;
-            }
-
-            $files[] = $class->getFileName();
-
-            $c = preg_replace(array('/^\s*<\?php/', '/\?>\s*$/'), '', file_get_contents($class->getFileName()));
-
-            // fakes namespace declaration for global code
-            if (!$class->inNamespace()) {
-                $c = "\nnamespace\n{\n".$c."\n}\n";
-            }
-
-            $c = self::fixNamespaceDeclarations('<?php '.$c);
-            $c = preg_replace('/^\s*<\?php/', '', $c);
-
-            $content .= $c;
+        if (!$adaptive) {
+            $declared = array_merge(get_declared_classes(), get_declared_interfaces(), get_declared_traits());
         }
 
-        // cache the core classes
-        if (!is_dir($cacheDir) && !@mkdir($cacheDir, 0777, true) && !is_dir($cacheDir)) {
-            throw new \RuntimeException(sprintf('Class Collection Loader was not able to create directory "%s"', $cacheDir));
-        }
-        self::writeCacheFile($cache, '<?php '.$content);
+        $files = self::inline($classes, $cache, $declared);
 
         if ($autoReload) {
             // save the resources
-            self::writeCacheFile($metadata, serialize(array($files, $classes)));
+            self::writeCacheFile($metadata, serialize(array(array_values($files), $classes)));
         }
     }
 
+    /**
+     * Generates a file where classes and their parents are inlined.
+     *
+     * @param array  $classes  An array of classes to load
+     * @param string $cache    The file where classes are inlined
+     * @param array  $excluded An array of classes that won't be inlined
+     *
+     * @return array The source map of inlined classes, with classes as keys and files as values
+     *
+     * @throws \RuntimeException When class can't be loaded
+     */
+    public static function inline($classes, $cache, array $excluded)
+    {
+        $declared = array();
+        foreach (self::getOrderedClasses($excluded) as $class) {
+            $declared[$class->getName()] = true;
+        }
+
+        // cache the core classes
+        $cacheDir = dirname($cache);
+        if (!is_dir($cacheDir) && !@mkdir($cacheDir, 0777, true) && !is_dir($cacheDir)) {
+            throw new \RuntimeException(sprintf('Class Collection Loader was not able to create directory "%s"', $cacheDir));
+        }
+
+        $spacesRegex = '(?:\s*+(?:(?:\#|//)[^\n]*+\n|/\*(?:(?<!\*/).)++)?+)*+';
+        $dontInlineRegex = <<<REGEX
+            '(?:
+               ^<\?php\s.declare.\(.strict_types.=.1.\).;
+               | \b__halt_compiler.\(.\)
+               | \b__(?:DIR|FILE)__\b
+            )'isx
+REGEX;
+        $dontInlineRegex = str_replace('.', $spacesRegex, $dontInlineRegex);
+
+        $cacheDir = explode('/', str_replace(DIRECTORY_SEPARATOR, '/', $cacheDir));
+        $files = array();
+        $content = '';
+        foreach (self::getOrderedClasses($classes) as $class) {
+            if (isset($declared[$class->getName()])) {
+                continue;
+            }
+            $declared[$class->getName()] = true;
+
+            $files[$class->getName()] = $file = $class->getFileName();
+            $c = file_get_contents($file);
+
+            if (preg_match($dontInlineRegex, $c)) {
+                $file = explode('/', str_replace(DIRECTORY_SEPARATOR, '/', $file));
+
+                for ($i = 0; isset($file[$i], $cacheDir[$i]); ++$i) {
+                    if ($file[$i] !== $cacheDir[$i]) {
+                        break;
+                    }
+                }
+                if (1 >= $i) {
+                    $file = var_export(implode('/', $file), true);
+                } else {
+                    $file = array_slice($file, $i);
+                    $file = str_repeat('../', count($cacheDir) - $i).implode('/', $file);
+                    $file = '__DIR__.'.var_export('/'.$file, true);
+                }
+
+                $c = "\nnamespace {require $file;}";
+            } else {
+                $c = preg_replace(array('/^\s*<\?php/', '/\?>\s*$/'), '', $c);
+
+                // fakes namespace declaration for global code
+                if (!$class->inNamespace()) {
+                    $c = "\nnamespace\n{\n".$c."\n}\n";
+                }
+
+                $c = self::fixNamespaceDeclarations('<?php '.$c);
+                $c = preg_replace('/^\s*<\?php/', '', $c);
+            }
+
+            $content .= $c;
+        }
+        self::writeCacheFile($cache, '<?php '.$content);
+
+        return $files;
+    }
+
     /**
      * Adds brackets around each namespace if it's not already the case.
      *
@@ -175,7 +245,7 @@ class ClassCollectionLoader
                 do {
                     $token = $tokens[++$i];
                     $output .= isset($token[1]) && 'b"' !== $token ? $token[1] : $token;
-                } while ($token[0] !== T_END_HEREDOC);
+                } while (T_END_HEREDOC !== $token[0]);
                 $output .= "\n";
                 $rawChunk = '';
             } elseif (T_CONSTANT_ENCAPSED_STRING === $token[0]) {
@@ -192,7 +262,7 @@ class ClassCollectionLoader
 
         $output .= self::compressCode($rawChunk);
 
-        if (PHP_VERSION_ID >= 70000) {
+        if (\PHP_VERSION_ID >= 70000) {
             // PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
             unset($tokens, $rawChunk);
             gc_mem_caches();
@@ -235,7 +305,13 @@ class ClassCollectionLoader
      */
     private static function writeCacheFile($file, $content)
     {
-        $tmpFile = tempnam(dirname($file), basename($file));
+        $dir = dirname($file);
+        if (!is_writable($dir)) {
+            throw new \RuntimeException(sprintf('Cache directory "%s" is not writable.', $dir));
+        }
+
+        $tmpFile = tempnam($dir, basename($file));
+
         if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $file)) {
             @chmod($file, 0666 & ~umask());
 
@@ -248,8 +324,6 @@ class ClassCollectionLoader
     /**
      * Gets an ordered array of passed classes including all their dependencies.
      *
-     * @param array $classes
-     *
      * @return \ReflectionClass[] An array of sorted \ReflectionClass instances (dependencies added if needed)
      *
      * @throws \InvalidArgumentException When a class can't be loaded

ClassLoader.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\ClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use Composer instead.', E_USER_DEPRECATED);
+
 /**
  * ClassLoader implements an PSR-0 class loader.
  *
@@ -36,6 +38,8 @@ namespace Symfony\Component\ClassLoader;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0.
  */
 class ClassLoader
 {

ClassMapGenerator.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\ClassMapGenerator class is deprecated since version 3.3 and will be removed in 4.0. Use Composer instead.', E_USER_DEPRECATED);
+
 /**
  * ClassMapGenerator.
  *
  * @author Gyula Sallai <salla016@gmail.com>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0.
  */
 class ClassMapGenerator
 {
@@ -56,15 +60,15 @@ class ClassMapGenerator
                 continue;
             }
 
-            $path = $file->getRealPath();
+            $path = $file->getRealPath() ?: $file->getPathname();
 
-            if (pathinfo($path, PATHINFO_EXTENSION) !== 'php') {
+            if ('php' !== pathinfo($path, PATHINFO_EXTENSION)) {
                 continue;
             }
 
             $classes = self::findClasses($path);
 
-            if (PHP_VERSION_ID >= 70000) {
+            if (\PHP_VERSION_ID >= 70000) {
                 // PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
                 gc_mem_caches();
             }

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2016 Fabien Potencier
+Copyright (c) 2004-2017 Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

MapClassLoader.php

@@ -11,18 +11,20 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\MapClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use Composer instead.', E_USER_DEPRECATED);
+
 /**
  * A class loader that uses a mapping file to look up paths.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0.
  */
 class MapClassLoader
 {
     private $map = array();
 
     /**
-     * Constructor.
-     *
      * @param array $map A map where keys are classes and values the absolute file path
      */
     public function __construct(array $map)

Psr4ClassLoader.php

@@ -11,18 +11,19 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\Psr4ClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use Composer instead.', E_USER_DEPRECATED);
+
 /**
  * A PSR-4 compatible class loader.
  *
  * See http://www.php-fig.org/psr/psr-4/
  *
  * @author Alexander M. Turek <me@derrabus.de>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0.
  */
 class Psr4ClassLoader
 {
-    /**
-     * @var array
-     */
     private $prefixes = array();
 
     /**

README.md

@@ -1,85 +1,14 @@
 ClassLoader Component
 =====================
 
-ClassLoader loads your project classes automatically if they follow some
-standard PHP conventions.
-
-The ClassLoader object is able to autoload classes that implement the PSR-0
-standard or the PEAR naming convention.
-
-First, register the autoloader:
-
-```php
-require_once __DIR__.'/src/Symfony/Component/ClassLoader/ClassLoader.php';
-
-use Symfony\Component\ClassLoader\ClassLoader;
-
-$loader = new ClassLoader();
-$loader->register();
-```
-
-Then, register some namespaces with the `addPrefix()` method:
-
-```php
-$loader->addPrefix('Symfony', __DIR__.'/src');
-$loader->addPrefix('Monolog', __DIR__.'/vendor/monolog/src');
-```
-
-The `addPrefix()` method takes a namespace prefix and a path where to look for
-the classes as arguments.
-
-You can also register a sub-namespaces:
-
-```php
-$loader->addPrefix('Doctrine\\Common', __DIR__.'/vendor/doctrine-common/lib');
-```
-
-The order of registration is significant and the first registered namespace
-takes precedence over later registered one.
-
-You can also register more than one path for a given namespace:
-
-```php
-$loader->addPrefix('Symfony', array(__DIR__.'/src', __DIR__.'/symfony/src'));
-```
-
-Alternatively, you can use the `addPrefixes()` method to register more
-than one namespace at once:
-
-```php
-$loader->addPrefixes(array(
-    'Symfony' => array(__DIR__.'/src', __DIR__.'/symfony/src'),
-    'Doctrine\\Common' => __DIR__.'/vendor/doctrine-common/lib',
-    'Doctrine' => __DIR__.'/vendor/doctrine/lib',
-    'Monolog' => __DIR__.'/vendor/monolog/src',
-));
-```
-
-For better performance, you can use the APC class loader:
-
-```php
-require_once __DIR__.'/src/Symfony/Component/ClassLoader/ClassLoader.php';
-require_once __DIR__.'/src/Symfony/Component/ClassLoader/ApcClassLoader.php';
-
-use Symfony\Component\ClassLoader\ClassLoader;
-use Symfony\Component\ClassLoader\ApcClassLoader;
-
-$loader = new ClassLoader();
-$loader->addPrefix('Symfony', __DIR__.'/src');
-
-$loader = new ApcClassLoader('apc.prefix.', $loader);
-$loader->register();
-```
-
-Furthermore, the component provides tools to aggregate classes into a single
-file, which is especially useful to improve performance on servers that do not
-provide byte caches.
+The ClassLoader component provides tools to autoload your classes and cache
+their locations for performance.
 
 Resources
 ---------
 
-You can run the unit tests with the following command:
-
-    $ cd path/to/Symfony/Component/ClassLoader/
-    $ composer install
-    $ phpunit
+  * [Documentation](https://symfony.com/doc/current/components/class_loader/index.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

Tests/ApcClassLoaderTest.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\ClassLoader\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\ClassLoader\ApcClassLoader;
 use Symfony\Component\ClassLoader\ClassLoader;
 
-class ApcClassLoaderTest extends \PHPUnit_Framework_TestCase
+/**
+ * @group legacy
+ */
+class ApcClassLoaderTest extends TestCase
 {
     protected function setUp()
     {

Tests/ClassCollectionLoaderTest.php

@@ -11,14 +11,20 @@
 
 namespace Symfony\Component\ClassLoader\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\ClassLoader\ClassCollectionLoader;
+use Symfony\Component\ClassLoader\Tests\Fixtures\DeclaredClass;
+use Symfony\Component\ClassLoader\Tests\Fixtures\WarmedClass;
 
 require_once __DIR__.'/Fixtures/ClassesWithParents/GInterface.php';
 require_once __DIR__.'/Fixtures/ClassesWithParents/CInterface.php';
 require_once __DIR__.'/Fixtures/ClassesWithParents/B.php';
 require_once __DIR__.'/Fixtures/ClassesWithParents/A.php';
 
-class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
+/**
+ * @group legacy
+ */
+class ClassCollectionLoaderTest extends TestCase
 {
     public function testTraitDependencies()
     {
@@ -28,14 +34,14 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', array('CTFoo'));
+        $ordered = $m->invoke(null, array('CTFoo'));
 
         $this->assertEquals(
             array('TD', 'TC', 'TB', 'TA', 'TZ', 'CTFoo'),
             array_map(function ($class) { return $class->getName(); }, $ordered)
         );
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', array('CTBar'));
+        $ordered = $m->invoke(null, array('CTBar'));
 
         $this->assertEquals(
             array('TD', 'TZ', 'TC', 'TB', 'TA', 'CTBar'),
@@ -59,7 +65,7 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }
@@ -116,7 +122,7 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }
@@ -155,7 +161,7 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }
@@ -216,18 +222,20 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
 
     public function testCommentStripping()
     {
-        if (is_file($file = sys_get_temp_dir().'/bar.php')) {
+        if (is_file($file = __DIR__.'/bar.php')) {
             unlink($file);
         }
         spl_autoload_register($r = function ($class) {
             if (0 === strpos($class, 'Namespaced') || 0 === strpos($class, 'Pearlike_')) {
-                require_once __DIR__.'/Fixtures/'.str_replace(array('\\', '_'), '/', $class).'.php';
+                @require_once __DIR__.'/Fixtures/'.str_replace(array('\\', '_'), '/', $class).'.php';
             }
         });
 
+        $strictTypes = defined('HHVM_VERSION') ? '' : "\nnamespace {require __DIR__.'/Fixtures/Namespaced/WithStrictTypes.php';}";
+
         ClassCollectionLoader::load(
-            array('Namespaced\\WithComments', 'Pearlike_WithComments'),
-            sys_get_temp_dir(),
+            array('Namespaced\\WithComments', 'Pearlike_WithComments', 'Namespaced\\WithDirMagic', 'Namespaced\\WithFileMagic', 'Namespaced\\WithHaltCompiler', $strictTypes ? 'Namespaced\\WithStrictTypes' : 'Namespaced\\WithComments'),
+            __DIR__,
             'bar',
             false
         );
@@ -266,9 +274,46 @@ class Pearlike_WithComments
 public static $loaded = true;
 }
 }
+namespace {require __DIR__.'/Fixtures/Namespaced/WithDirMagic.php';}
+namespace {require __DIR__.'/Fixtures/Namespaced/WithFileMagic.php';}
+namespace {require __DIR__.'/Fixtures/Namespaced/WithHaltCompiler.php';}
 EOF
-        , str_replace("<?php \n", '', file_get_contents($file)));
+            .$strictTypes,
+            str_replace(array("<?php \n", '\\\\'), array('', '/'), file_get_contents($file))
+        );
 
         unlink($file);
     }
+
+    public function testInline()
+    {
+        $this->assertTrue(class_exists(WarmedClass::class, true));
+
+        @unlink($cache = sys_get_temp_dir().'/inline.php');
+
+        $classes = array(WarmedClass::class);
+        $excluded = array(DeclaredClass::class);
+
+        ClassCollectionLoader::inline($classes, $cache, $excluded);
+
+        $this->assertSame(<<<'EOTXT'
+<?php 
+namespace Symfony\Component\ClassLoader\Tests\Fixtures
+{
+interface WarmedInterface
+{
+}
+}
+namespace Symfony\Component\ClassLoader\Tests\Fixtures
+{
+class WarmedClass extends DeclaredClass implements WarmedInterface
+{
+}
+}
+EOTXT
+            , file_get_contents($cache)
+        );
+
+        unlink($cache);
+    }
 }

Tests/ClassLoaderTest.php

@@ -11,9 +11,13 @@
 
 namespace Symfony\Component\ClassLoader\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\ClassLoader\ClassLoader;
 
-class ClassLoaderTest extends \PHPUnit_Framework_TestCase
+/**
+ * @group legacy
+ */
+class ClassLoaderTest extends TestCase
 {
     public function testGetPrefixes()
     {

Tests/ClassMapGeneratorTest.php

@@ -11,9 +11,13 @@
 
 namespace Symfony\Component\ClassLoader\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\ClassLoader\ClassMapGenerator;
 
-class ClassMapGeneratorTest extends \PHPUnit_Framework_TestCase
+/**
+ * @group legacy
+ */
+class ClassMapGeneratorTest extends TestCase
 {
     /**
      * @var string|null
@@ -22,7 +26,7 @@ class ClassMapGeneratorTest extends \PHPUnit_Framework_TestCase
 
     public function prepare_workspace()
     {
-        $this->workspace = rtrim(sys_get_temp_dir(), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.time().mt_rand(0, 1000);
+        $this->workspace = sys_get_temp_dir().'/'.microtime(true).'.'.mt_rand();
         mkdir($this->workspace, 0777, true);
         $this->workspace = realpath($this->workspace);
     }
@@ -76,8 +80,11 @@ class ClassMapGeneratorTest extends \PHPUnit_Framework_TestCase
                 'Namespaced\\Foo' => realpath(__DIR__).'/Fixtures/Namespaced/Foo.php',
                 'Namespaced\\Baz' => realpath(__DIR__).'/Fixtures/Namespaced/Baz.php',
                 'Namespaced\\WithComments' => realpath(__DIR__).'/Fixtures/Namespaced/WithComments.php',
-                ),
-            ),
+                'Namespaced\\WithStrictTypes' => realpath(__DIR__).'/Fixtures/Namespaced/WithStrictTypes.php',
+                'Namespaced\\WithHaltCompiler' => realpath(__DIR__).'/Fixtures/Namespaced/WithHaltCompiler.php',
+                'Namespaced\\WithDirMagic' => realpath(__DIR__).'/Fixtures/Namespaced/WithDirMagic.php',
+                'Namespaced\\WithFileMagic' => realpath(__DIR__).'/Fixtures/Namespaced/WithFileMagic.php',
+            )),
             array(__DIR__.'/Fixtures/beta/NamespaceCollision', array(
                 'NamespaceCollision\\A\\B\\Bar' => realpath(__DIR__).'/Fixtures/beta/NamespaceCollision/A/B/Bar.php',
                 'NamespaceCollision\\A\\B\\Foo' => realpath(__DIR__).'/Fixtures/beta/NamespaceCollision/A/B/Foo.php',

Tests/Fixtures/DeclaredClass.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\ClassLoader\Tests\Fixtures;
+
+class DeclaredClass implements DeclaredInterface
+{
+}

Tests/Fixtures/DeclaredInterface.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\ClassLoader\Tests\Fixtures;
+
+interface DeclaredInterface
+{
+}

Tests/Fixtures/Namespaced/WithDirMagic.php

@@ -0,0 +1,15 @@
+<?php
+
+/*
+ * foo
+ */
+
+namespace Namespaced;
+
+class WithDirMagic
+{
+    public function getDir()
+    {
+        return __DIR__;
+    }
+}

Tests/Fixtures/Namespaced/WithFileMagic.php

@@ -0,0 +1,15 @@
+<?php
+
+/*
+ * foo
+ */
+
+namespace Namespaced;
+
+class WithFileMagic
+{
+    public function getFile()
+    {
+        return __FILE__;
+    }
+}

Tests/Fixtures/Namespaced/WithHaltCompiler.php

@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * foo
+ */
+
+namespace Namespaced;
+
+class WithHaltCompiler
+{
+}
+
+// the end of the script execution
+__halt_compiler(); data
+data
+data
+data
+...

Tests/Fixtures/Namespaced/WithStrictTypes.php

@@ -0,0 +1,13 @@
+<?php
+
+/*
+ * foo
+ */
+
+declare(strict_types=1);
+
+namespace Namespaced;
+
+class WithStrictTypes
+{
+}

Tests/Fixtures/WarmedClass.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\ClassLoader\Tests\Fixtures;
+
+class WarmedClass extends DeclaredClass implements WarmedInterface
+{
+}

Tests/Fixtures/WarmedInterface.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\ClassLoader\Tests\Fixtures;
+
+interface WarmedInterface
+{
+}

Tests/Psr4ClassLoaderTest.php

@@ -11,9 +11,13 @@
 
 namespace Symfony\Component\ClassLoader\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\ClassLoader\Psr4ClassLoader;
 
-class Psr4ClassLoaderTest extends \PHPUnit_Framework_TestCase
+/**
+ * @group legacy
+ */
+class Psr4ClassLoaderTest extends TestCase
 {
     /**
      * @param string $className

WinCacheClassLoader.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\WinCacheClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use `composer install --apcu-autoloader` instead.', E_USER_DEPRECATED);
+
 /**
  * WinCacheClassLoader implements a wrapping autoloader cached in WinCache.
  *
@@ -43,6 +45,8 @@ namespace Symfony\Component\ClassLoader;
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Kris Wallsmith <kris@symfony.com>
  * @author Artem Ryzhkov <artem@smart-core.org>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0. Use `composer install --apcu-autoloader` instead.
  */
 class WinCacheClassLoader
 {
@@ -56,10 +60,8 @@ class WinCacheClassLoader
     protected $decorated;
 
     /**
-     * Constructor.
-     *
-     * @param string $prefix    The WinCache namespace prefix to use.
-     * @param object $decorated A class loader object that implements the findFile() method.
+     * @param string $prefix    The WinCache namespace prefix to use
+     * @param object $decorated A class loader object that implements the findFile() method
      *
      * @throws \RuntimeException
      * @throws \InvalidArgumentException
@@ -121,8 +123,10 @@ class WinCacheClassLoader
      */
     public function findFile($class)
     {
-        if (false === $file = wincache_ucache_get($this->prefix.$class)) {
-            wincache_ucache_set($this->prefix.$class, $file = $this->decorated->findFile($class), 0);
+        $file = wincache_ucache_get($this->prefix.$class, $success);
+
+        if (!$success) {
+            wincache_ucache_set($this->prefix.$class, $file = $this->decorated->findFile($class) ?: null, 0);
         }
 
         return $file;

XcacheClassLoader.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\ClassLoader;
 
+@trigger_error('The '.__NAMESPACE__.'\XcacheClassLoader class is deprecated since version 3.3 and will be removed in 4.0. Use `composer install --apcu-autoloader` instead.', E_USER_DEPRECATED);
+
 /**
  * XcacheClassLoader implements a wrapping autoloader cached in XCache for PHP 5.3.
  *
@@ -43,23 +45,17 @@ namespace Symfony\Component\ClassLoader;
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Kris Wallsmith <kris@symfony.com>
  * @author Kim Hemsø Rasmussen <kimhemsoe@gmail.com>
+ *
+ * @deprecated since version 3.3, to be removed in 4.0. Use `composer install --apcu-autoloader` instead.
  */
 class XcacheClassLoader
 {
     private $prefix;
-
-    /**
-     * A class loader object that implements the findFile() method.
-     *
-     * @var object
-     */
     private $decorated;
 
     /**
-     * Constructor.
-     *
-     * @param string $prefix    The XCache namespace prefix to use.
-     * @param object $decorated A class loader object that implements the findFile() method.
+     * @param string $prefix    The XCache namespace prefix to use
+     * @param object $decorated A class loader object that implements the findFile() method
      *
      * @throws \RuntimeException
      * @throws \InvalidArgumentException
@@ -124,7 +120,7 @@ class XcacheClassLoader
         if (xcache_isset($this->prefix.$class)) {
             $file = xcache_get($this->prefix.$class);
         } else {
-            $file = $this->decorated->findFile($class);
+            $file = $this->decorated->findFile($class) ?: null;
             xcache_set($this->prefix.$class, $file);
         }
 

composer.json

@@ -17,10 +17,10 @@
     ],
     "minimum-stability": "dev",
     "require": {
-        "php": ">=5.5.9"
+        "php": "^5.5.9|>=7.0.8"
     },
     "require-dev": {
-        "symfony/finder": "~2.8|~3.0",
+        "symfony/finder": "~2.8|~3.0|~4.0",
         "symfony/polyfill-apcu": "~1.1"
     },
     "suggest": {
@@ -34,7 +34,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.0-dev"
+            "dev-master": "3.4-dev"
         }
     }
 }

phpunit.xml.dist

@@ -5,6 +5,8 @@
          backupGlobals="false"
          colors="true"
          bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
 >
     <php>
         <ini name="error_reporting" value="-1" />