Fix typo

* 3.4:
  Add Tagalog translations for validator messages 94, 95, 96 and 99
  PHPUnit's assertContains() performs strict comparisons now.
  [ClassLoader][Routing] Fix namespace parsing on php 8.
  Fix deprecated libxml_disable_entity_loader
  Made reference to PHPUnit\Util\XML::loadfile php5-compatible.
  [Validator] Add missing translations for german and vietnamese
  Modernized deprecated PHPUnit assertion calls
  [Console] The message of "class not found" errors has changed in php 8.
  The PHPUnit\Util\XML class has been removed in PHPUnit 9.3.
  [Console] Make sure we pass a numeric array of arguments to call_user_func_array().
  [Serializer] Fix that it will never reach DOMNode
  [Validator] sync translations
  [VarDumper] Improve previous fix on light array coloration
  [Cache] Fix #37667

.gitattributes

@@ -0,0 +1,4 @@
+/Tests export-ignore
+/phpunit.xml.dist export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore

BufferingLogger.php

@@ -13,15 +13,22 @@ namespace Symfony\Component\Debug;
 
 use Psr\Log\AbstractLogger;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', BufferingLogger::class, \Symfony\Component\ErrorHandler\BufferingLogger::class), E_USER_DEPRECATED);
+
 /**
  * A buffering logger that stacks logs for later.
  *
  * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\BufferingLogger instead.
  */
 class BufferingLogger extends AbstractLogger
 {
     private $logs = [];
 
+    /**
+     * @return void
+     */
     public function log($level, $message, array $context = [])
     {
         $this->logs[] = [$level, $message, $context];

CHANGELOG.md

@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+4.4.0
+-----
+
+ * deprecated `FlattenException`, use the `FlattenException` of the `ErrorHandler` component
+ * deprecated the whole component in favor of the `ErrorHandler` component
+
 4.3.0
 -----
 

Debug.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', Debug::class, \Symfony\Component\ErrorHandler\Debug::class), E_USER_DEPRECATED);
+
 /**
  * Registers all the debug tools.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Debug instead.
  */
 class Debug
 {

DebugClassLoader.php

@@ -13,6 +13,8 @@ namespace Symfony\Component\Debug;
 
 use PHPUnit\Framework\MockObject\Matcher\StatelessInvocation;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', DebugClassLoader::class, \Symfony\Component\ErrorHandler\DebugClassLoader::class), E_USER_DEPRECATED);
+
 /**
  * Autoloader checking if the class is really defined in the file found.
  *
@@ -24,6 +26,8 @@ use PHPUnit\Framework\MockObject\Matcher\StatelessInvocation;
  * @author Christophe Coevoet <stof@notk.org>
  * @author Nicolas Grekas <p@tchwork.com>
  * @author Guilhem Niot <guilhem.niot@gmail.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\DebugClassLoader instead.
  */
 class DebugClassLoader
 {
@@ -170,7 +174,7 @@ class DebugClassLoader
         $this->checkClass($class, $file);
     }
 
-    private function checkClass($class, $file = null)
+    private function checkClass(string $class, string $file = null)
     {
         $exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
 
@@ -258,7 +262,7 @@ class DebugClassLoader
         }
 
         $parent = get_parent_class($class);
-        $parentAndOwnInterfaces = $this->getOwnInterfaces($class, $parent);
+        $parentAndOwnInterfaces = $this->getOwnInterfaces($class, $parent ?: null);
         if ($parent) {
             $parentAndOwnInterfaces[$parent] = $parent;
 
@@ -387,7 +391,7 @@ class DebugClassLoader
             foreach ($matches as list(, $parameterType, $parameterName)) {
                 if (!isset($definedParameters[$parameterName])) {
                     $parameterType = trim($parameterType);
-                    self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its parent class "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, $method->class);
+                    self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its %s "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, interface_exists($class) ? 'interface' : 'parent class', $method->class);
                 }
             }
         }
@@ -440,7 +444,7 @@ class DebugClassLoader
     /**
      * `realpath` on MacOSX doesn't normalize the case of characters.
      */
-    private function darwinRealpath($real)
+    private function darwinRealpath(string $real): string
     {
         $i = 1 + strrpos($real, '/');
         $file = substr($real, $i);
@@ -455,7 +459,11 @@ class DebugClassLoader
                 $real = self::$darwinCache[$kDir][0];
             } else {
                 $dir = getcwd();
-                chdir($real);
+
+                if (!@chdir($real)) {
+                    return $real.$file;
+                }
+
                 $real = getcwd().'/';
                 chdir($dir);
 
@@ -482,7 +490,7 @@ class DebugClassLoader
         }
 
         if (isset($dirFiles[$file])) {
-            return $real .= $dirFiles[$file];
+            return $real.$dirFiles[$file];
         }
 
         $kFile = strtolower($file);
@@ -501,18 +509,15 @@ class DebugClassLoader
             self::$darwinCache[$kDir][1] = $dirFiles;
         }
 
-        return $real .= $dirFiles[$kFile];
+        return $real.$dirFiles[$kFile];
     }
 
     /**
      * `class_implements` includes interfaces from the parents so we have to manually exclude them.
      *
-     * @param string       $class
-     * @param string|false $parent
-     *
      * @return string[]
      */
-    private function getOwnInterfaces($class, $parent)
+    private function getOwnInterfaces(string $class, ?string $parent): array
     {
         $ownInterfaces = class_implements($class, false);
 

ErrorHandler.php

@@ -23,6 +23,8 @@ use Symfony\Component\Debug\FatalErrorHandler\FatalErrorHandlerInterface;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorHandler::class), E_USER_DEPRECATED);
+
 /**
  * A generic ErrorHandler for the PHP engine.
  *
@@ -47,6 +49,8 @@ use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
  *
  * @final since Symfony 4.3
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\ErrorHandler instead.
  */
 class ErrorHandler
 {
@@ -172,9 +176,8 @@ class ErrorHandler
     /**
      * Sets a logger to non assigned errors levels.
      *
-     * @param LoggerInterface $logger  A PSR-3 logger to put as default for the given levels
-     * @param array|int       $levels  An array map of E_* to LogLevel::* or an integer bit field of E_* constants
-     * @param bool            $replace Whether to replace or not any existing logger
+     * @param array|int $levels  An array map of E_* to LogLevel::* or an integer bit field of E_* constants
+     * @param bool      $replace Whether to replace or not any existing logger
      */
     public function setDefaultLogger(LoggerInterface $logger, $levels = E_ALL, $replace = false)
     {
@@ -223,14 +226,14 @@ class ErrorHandler
             if (!\is_array($log)) {
                 $log = [$log];
             } elseif (!\array_key_exists(0, $log)) {
-                throw new \InvalidArgumentException('No logger provided');
+                throw new \InvalidArgumentException('No logger provided.');
             }
             if (null === $log[0]) {
                 $this->loggedErrors &= ~$type;
             } elseif ($log[0] instanceof LoggerInterface) {
                 $this->loggedErrors |= $type;
             } else {
-                throw new \InvalidArgumentException('Invalid logger provided');
+                throw new \InvalidArgumentException('Invalid logger provided.');
             }
             $this->loggers[$type] = $log + $prev[$type];
 
@@ -349,7 +352,7 @@ class ErrorHandler
     /**
      * Re-registers as a PHP error handler if levels changed.
      */
-    private function reRegister($prev)
+    private function reRegister(int $prev)
     {
         if ($prev !== $this->thrownErrors | $this->loggedErrors) {
             $handler = set_error_handler('var_dump');
@@ -382,8 +385,7 @@ class ErrorHandler
      */
     public function handleError($type, $message, $file, $line)
     {
-        // @deprecated to be removed in Symfony 5.0
-        if (\PHP_VERSION_ID >= 70300 && $message && '"' === $message[0] && 0 === strpos($message, '"continue') && preg_match('/^"continue(?: \d++)?" targeting switch is equivalent to "break(?: \d++)?"\. Did you mean to use "continue(?: \d++)?"\?$/', $message)) {
+        if (\PHP_VERSION_ID >= 70300 && E_WARNING === $type && '"' === $message[0] && false !== strpos($message, '" targeting switch is equivalent to "break')) {
             $type = E_DEPRECATED;
         }
 
@@ -401,19 +403,7 @@ class ErrorHandler
         }
         $scope = $this->scopedErrors & $type;
 
-        if (4 < $numArgs = \func_num_args()) {
-            $context = $scope ? (func_get_arg(4) ?: []) : [];
-        } else {
-            $context = [];
-        }
-
-        if (isset($context['GLOBALS']) && $scope) {
-            $e = $context;                  // Whatever the signature of the method,
-            unset($e['GLOBALS'], $context); // $context is always a reference in 5.3
-            $context = $e;
-        }
-
-        if (false !== strpos($message, "class@anonymous\0")) {
+        if (false !== strpos($message, "@anonymous\0")) {
             $logMessage = $this->levels[$type].': '.(new FlattenException())->setMessage($message)->getMessage();
         } else {
             $logMessage = $this->levels[$type].': '.$message;
@@ -474,6 +464,8 @@ class ErrorHandler
                         // `return trigger_error($e, E_USER_ERROR);` allows this error handler
                         // to make $e get through the __toString() barrier.
 
+                        $context = 4 < \func_num_args() ? (func_get_arg(4) ?: []) : [];
+
                         foreach ($context as $e) {
                             if ($e instanceof \Throwable && $e->__toString() === $message) {
                                 self::$toStringException = $e;
@@ -497,7 +489,7 @@ class ErrorHandler
         if ($this->isRecursive) {
             $log = 0;
         } else {
-            if (!\defined('HHVM_VERSION')) {
+            if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
                 $currentErrorHandler = set_error_handler('var_dump');
                 restore_error_handler();
             }
@@ -509,7 +501,7 @@ class ErrorHandler
             } finally {
                 $this->isRecursive = false;
 
-                if (!\defined('HHVM_VERSION')) {
+                if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
                     set_error_handler($currentErrorHandler);
                 }
             }
@@ -538,7 +530,7 @@ class ErrorHandler
         $handlerException = null;
 
         if (($this->loggedErrors & $type) || $exception instanceof FatalThrowableError) {
-            if (false !== strpos($message = $exception->getMessage(), "class@anonymous\0")) {
+            if (false !== strpos($message = $exception->getMessage(), "@anonymous\0")) {
                 $message = (new FlattenException())->setMessage($message)->getMessage();
             }
             if ($exception instanceof FatalErrorException) {
@@ -689,7 +681,7 @@ class ErrorHandler
     /**
      * Cleans the trace by removing function arguments and the frames added by the error handler and DebugClassLoader.
      */
-    private function cleanTrace($backtrace, $type, $file, $line, $throw)
+    private function cleanTrace(array $backtrace, int $type, string $file, int $line, bool $throw): array
     {
         $lightTrace = $backtrace;
 

Exception/ClassNotFoundException.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundException::class, \Symfony\Component\ErrorHandler\Error\ClassNotFoundError::class), E_USER_DEPRECATED);
+
 /**
  * Class (or Trait or Interface) Not Found Exception.
  *
  * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\ClassNotFoundError instead.
  */
 class ClassNotFoundException extends FatalErrorException
 {

Exception/FatalErrorException.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorException::class, \Symfony\Component\ErrorHandler\Error\FatalError::class), E_USER_DEPRECATED);
+
 /**
  * Fatal Error Exception.
  *
  * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\FatalError instead.
  */
 class FatalErrorException extends \ErrorException
 {

Exception/FatalThrowableError.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4.', FatalThrowableError::class), E_USER_DEPRECATED);
+
 /**
  * Fatal Throwable Error.
  *
  * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated since Symfony 4.4
  */
 class FatalThrowableError extends FatalErrorException
 {
@@ -22,7 +26,7 @@ class FatalThrowableError extends FatalErrorException
 
     public function __construct(\Throwable $e)
     {
-        $this->originalClassName = \get_class($e);
+        $this->originalClassName = get_debug_type($e);
 
         if ($e instanceof \ParseError) {
             $severity = E_PARSE;

Exception/FlattenException.php

@@ -20,6 +20,8 @@ use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
  * Basically, this class removes all objects from the trace.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Exception\FlattenException instead.
  */
 class FlattenException
 {
@@ -34,12 +36,18 @@ class FlattenException
     private $file;
     private $line;
 
+    /**
+     * @return static
+     */
     public static function create(\Exception $exception, $statusCode = null, array $headers = [])
     {
         return static::createFromThrowable($exception, $statusCode, $headers);
     }
 
-    public static function createFromThrowable(\Throwable $exception, ?int $statusCode = null, array $headers = []): self
+    /**
+     * @return static
+     */
+    public static function createFromThrowable(\Throwable $exception, int $statusCode = null, array $headers = [])
     {
         $e = new static();
         $e->setMessage($exception->getMessage());
@@ -59,7 +67,7 @@ class FlattenException
         $e->setStatusCode($statusCode);
         $e->setHeaders($headers);
         $e->setTraceFromThrowable($exception);
-        $e->setClass($exception instanceof FatalThrowableError ? $exception->getOriginalClassName() : \get_class($exception));
+        $e->setClass($exception instanceof FatalThrowableError ? $exception->getOriginalClassName() : get_debug_type($exception));
         $e->setFile($exception->getFile());
         $e->setLine($exception->getLine());
 
@@ -126,7 +134,7 @@ class FlattenException
      */
     public function setClass($class)
     {
-        $this->class = 'c' === $class[0] && 0 === strpos($class, "class@anonymous\0") ? get_parent_class($class).'@anonymous' : $class;
+        $this->class = false !== strpos($class, "@anonymous\0") ? (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous' : $class;
 
         return $this;
     }
@@ -171,9 +179,9 @@ class FlattenException
      */
     public function setMessage($message)
     {
-        if (false !== strpos($message, "class@anonymous\0")) {
-            $message = preg_replace_callback('/class@anonymous\x00.*?\.php0x?[0-9a-fA-F]++/', function ($m) {
-                return class_exists($m[0], false) ? get_parent_class($m[0]).'@anonymous' : $m[0];
+        if (false !== strpos($message, "@anonymous\0")) {
+            $message = preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]*+@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)[0-9a-fA-F]++/', function ($m) {
+                return class_exists($m[0], false) ? (get_parent_class($m[0]) ?: key(class_implements($m[0])) ?: 'class').'@anonymous' : $m[0];
             }, $message);
         }
 
@@ -285,7 +293,7 @@ class FlattenException
         return $this;
     }
 
-    private function flattenArgs($args, $level = 0, &$count = 0)
+    private function flattenArgs(array $args, int $level = 0, int &$count = 0): array
     {
         $result = [];
         foreach ($args as $key => $value) {
@@ -321,7 +329,7 @@ class FlattenException
         return $result;
     }
 
-    private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
+    private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value): string
     {
         $array = new \ArrayObject($value);
 

Exception/OutOfMemoryException.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', OutOfMemoryException::class, \Symfony\Component\ErrorHandler\Error\OutOfMemoryError::class), E_USER_DEPRECATED);
+
 /**
  * Out of memory exception.
  *
  * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\OutOfMemoryError instead.
  */
 class OutOfMemoryException extends FatalErrorException
 {

Exception/SilencedErrorContext.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', SilencedErrorContext::class, \Symfony\Component\ErrorHandler\Exception\SilencedErrorContext::class), E_USER_DEPRECATED);
+
 /**
  * Data Object that represents a Silenced Error.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext instead.
  */
 class SilencedErrorContext implements \JsonSerializable
 {

Exception/UndefinedFunctionException.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionException::class, \Symfony\Component\ErrorHandler\Error\UndefinedFunctionError::class), E_USER_DEPRECATED);
+
 /**
  * Undefined Function Exception.
  *
  * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\UndefinedFunctionError instead.
  */
 class UndefinedFunctionException extends FatalErrorException
 {

Exception/UndefinedMethodException.php

@@ -11,10 +11,14 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodException::class, \Symfony\Component\ErrorHandler\Error\UndefinedMethodError::class), E_USER_DEPRECATED);
+
 /**
  * Undefined Method Exception.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\UndefinedMethodError instead.
  */
 class UndefinedMethodException extends FatalErrorException
 {

FatalErrorHandler/ClassNotFoundFatalErrorHandler.php

@@ -17,10 +17,14 @@ use Symfony\Component\Debug\DebugClassLoader;
 use Symfony\Component\Debug\Exception\ClassNotFoundException;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundFatalErrorHandler::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\ClassNotFoundFatalErrorHandler::class), E_USER_DEPRECATED);
+
 /**
  * ErrorHandler for classes that do not exist.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\FatalErrorHandler\ClassNotFoundFatalErrorHandler instead.
  */
 class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
 {

FatalErrorHandler/FatalErrorHandlerInterface.php

@@ -13,18 +13,21 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 
 use Symfony\Component\Debug\Exception\FatalErrorException;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorHandlerInterface::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\FatalErrorHandlerInterface::class), E_USER_DEPRECATED);
+
 /**
  * Attempts to convert fatal errors to exceptions.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\FatalErrorHandler\FatalErrorHandlerInterface instead.
  */
 interface FatalErrorHandlerInterface
 {
     /**
      * Attempts to convert an error into an exception.
      *
-     * @param array               $error     An array as returned by error_get_last()
-     * @param FatalErrorException $exception A FatalErrorException instance
+     * @param array $error An array as returned by error_get_last()
      *
      * @return FatalErrorException|null A FatalErrorException instance if the class is able to convert the error, null otherwise
      */

FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php

@@ -14,10 +14,14 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\Exception\UndefinedFunctionException;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer::class), E_USER_DEPRECATED);
+
 /**
  * ErrorHandler for undefined functions.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer instead.
  */
 class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
 {

FatalErrorHandler/UndefinedMethodFatalErrorHandler.php

@@ -14,10 +14,14 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\Exception\UndefinedMethodException;
 
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer::class), E_USER_DEPRECATED);
+
 /**
  * ErrorHandler for undefined methods.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer instead.
  */
 class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
 {

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2019 Fabien Potencier
+Copyright (c) 2004-2020 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

README.md

@@ -1,12 +1,29 @@
 Debug Component
 ===============
 
+**CAUTION**: this component is deprecated since Symfony 4.4. Instead, use the
+[ErrorHandler component](https://github.com/symfony/symfony/tree/master/src/Symfony/Component/ErrorHandler).
+
+-----
+
 The Debug component provides tools to ease debugging PHP code.
 
+Getting Started
+---------------
+
+```
+$ composer install symfony/debug
+```
+
+```php
+use Symfony\Component\Debug\Debug;
+
+Debug::enable();
+```
+
 Resources
 ---------
 
-  * [Documentation](https://symfony.com/doc/current/components/debug/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)

Tests/DebugClassLoaderTest.php

@@ -14,6 +14,9 @@ namespace Symfony\Component\Debug\Tests;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Debug\DebugClassLoader;
 
+/**
+ * @group legacy
+ */
 class DebugClassLoaderTest extends TestCase
 {
     /**
@@ -26,21 +29,23 @@ class DebugClassLoaderTest extends TestCase
     protected function setUp(): void
     {
         $this->errorReporting = error_reporting(E_ALL);
-        $this->loader = new ClassLoader();
-        spl_autoload_register([$this->loader, 'loadClass'], true, true);
-        DebugClassLoader::enable();
+        $this->loader = [new DebugClassLoader([new ClassLoader(), 'loadClass']), 'loadClass'];
+        spl_autoload_register($this->loader, true, true);
     }
 
     protected function tearDown(): void
     {
-        DebugClassLoader::disable();
-        spl_autoload_unregister([$this->loader, 'loadClass']);
+        spl_autoload_unregister($this->loader);
         error_reporting($this->errorReporting);
     }
 
+    /**
+     * @runInSeparateProcess
+     */
     public function testIdempotence()
     {
         DebugClassLoader::enable();
+        DebugClassLoader::enable();
 
         $functions = spl_autoload_functions();
         foreach ($functions as $function) {
@@ -63,21 +68,21 @@ class DebugClassLoaderTest extends TestCase
         $this->expectException('Exception');
         $this->expectExceptionMessage('boo');
         try {
-            class_exists(__NAMESPACE__.'\Fixtures\Throwing');
+            class_exists(Fixtures\Throwing::class);
             $this->fail('Exception expected');
         } catch (\Exception $e) {
             $this->assertSame('boo', $e->getMessage());
         }
 
         // the second call also should throw
-        class_exists(__NAMESPACE__.'\Fixtures\Throwing');
+        class_exists(Fixtures\Throwing::class);
     }
 
     public function testNameCaseMismatch()
     {
         $this->expectException('RuntimeException');
         $this->expectExceptionMessage('Case mismatch between loaded and declared class names');
-        class_exists(__NAMESPACE__.'\TestingCaseMismatch', true);
+        class_exists(TestingCaseMismatch::class, true);
     }
 
     public function testFileCaseMismatch()
@@ -88,7 +93,7 @@ class DebugClassLoaderTest extends TestCase
             $this->markTestSkipped('Can only be run on case insensitive filesystems');
         }
 
-        class_exists(__NAMESPACE__.'\Fixtures\CaseMismatch', true);
+        class_exists(Fixtures\CaseMismatch::class, true);
     }
 
     public function testPsr4CaseMismatch()
@@ -110,7 +115,7 @@ class DebugClassLoaderTest extends TestCase
 
     public function testClassAlias()
     {
-        $this->assertTrue(class_exists(__NAMESPACE__.'\Fixtures\ClassAlias', true));
+        $this->assertTrue(class_exists(Fixtures\ClassAlias::class, true));
     }
 
     /**
@@ -152,7 +157,7 @@ class DebugClassLoaderTest extends TestCase
         $e = error_reporting(0);
         trigger_error('', E_USER_NOTICE);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\NonDeprecatedInterfaceClass', true);
+        class_exists('Test\\'.NonDeprecatedInterfaceClass::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -199,7 +204,7 @@ class DebugClassLoaderTest extends TestCase
         require __DIR__.'/Fixtures/FinalClasses.php';
 
         $i = 1;
-        while (class_exists($finalClass = __NAMESPACE__.'\\Fixtures\\FinalClass'.$i++, false)) {
+        while (class_exists($finalClass = Fixtures\FinalClass::class.$i++, false)) {
             spl_autoload_call($finalClass);
             class_exists('Test\\'.__NAMESPACE__.'\\Extends'.substr($finalClass, strrpos($finalClass, '\\') + 1), true);
         }
@@ -225,7 +230,7 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists(__NAMESPACE__.'\\Fixtures\\ExtendedFinalMethod', true);
+        class_exists(Fixtures\ExtendedFinalMethod::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -244,7 +249,7 @@ class DebugClassLoaderTest extends TestCase
         $e = error_reporting(0);
         trigger_error('', E_USER_NOTICE);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\ExtendsAnnotatedClass', true);
+        class_exists('Test\\'.ExtendsAnnotatedClass::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -261,7 +266,7 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\ExtendsInternals', true);
+        class_exists('Test\\'.ExtendsInternals::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -280,19 +285,19 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists(__NAMESPACE__.'\\Fixtures\SubClassWithAnnotatedParameters', true);
+        class_exists(Fixtures\SubClassWithAnnotatedParameters::class, true);
 
         error_reporting($e);
         restore_error_handler();
 
         $this->assertSame([
             'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::quzMethod()" method will require a new "Quz $quz" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\ClassWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::whereAmI()" method will require a new "bool $matrix" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "$noType" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "callable(\Throwable|null $reason, mixed $value) $callback" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "string $param" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "callable  ($a,  $b) $anotherOne" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "Type$WithDollarIsStillAType $ccc" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::whereAmI()" method will require a new "bool $matrix" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "$noType" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "callable(\Throwable|null $reason, mixed $value) $callback" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "string $param" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "callable  ($a,  $b) $anotherOne" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
+            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "Type$WithDollarIsStillAType $ccc" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
             'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::isSymfony()" method will require a new "true $yes" argument in the next major version of its parent class "Symfony\Component\Debug\Tests\Fixtures\ClassWithAnnotatedParameters", not defining it is deprecated.',
         ], $deprecations);
     }
@@ -303,7 +308,7 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\UseTraitWithInternalMethod', true);
+        class_exists('Test\\'.UseTraitWithInternalMethod::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -317,7 +322,7 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\ExtendsVirtual', true);
+        class_exists('Test\\'.ExtendsVirtual::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -343,7 +348,7 @@ class DebugClassLoaderTest extends TestCase
         set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
         $e = error_reporting(E_USER_DEPRECATED);
 
-        class_exists('Test\\'.__NAMESPACE__.'\\ExtendsVirtualMagicCall', true);
+        class_exists('Test\\'.ExtendsVirtualMagicCall::class, true);
 
         error_reporting($e);
         restore_error_handler();
@@ -353,7 +358,7 @@ class DebugClassLoaderTest extends TestCase
 
     public function testEvaluatedCode()
     {
-        $this->assertTrue(class_exists(__NAMESPACE__.'\Fixtures\DefinitionInEvaluatedCode', true));
+        $this->assertTrue(class_exists(Fixtures\DefinitionInEvaluatedCode::class, true));
     }
 }
 
@@ -372,11 +377,11 @@ class ClassLoader
     {
         $fixtureDir = __DIR__.\DIRECTORY_SEPARATOR.'Fixtures'.\DIRECTORY_SEPARATOR;
 
-        if (__NAMESPACE__.'\TestingUnsilencing' === $class) {
+        if (TestingUnsilencing::class === $class) {
             eval('-- parse error --');
-        } elseif (__NAMESPACE__.'\TestingStacking' === $class) {
+        } elseif (TestingStacking::class === $class) {
             eval('namespace '.__NAMESPACE__.'; class TestingStacking { function foo() {} }');
-        } elseif (__NAMESPACE__.'\TestingCaseMismatch' === $class) {
+        } elseif (TestingCaseMismatch::class === $class) {
             eval('namespace '.__NAMESPACE__.'; class TestingCaseMisMatch {}');
         } elseif (__NAMESPACE__.'\Fixtures\Psr4CaseMismatch' === $class) {
             return $fixtureDir.'psr4'.\DIRECTORY_SEPARATOR.'Psr4CaseMismatch.php';
@@ -386,59 +391,57 @@ class ClassLoader
             return $fixtureDir.'notPsr0Bis.php';
         } elseif ('Symfony\Bridge\Debug\Tests\Fixtures\ExtendsDeprecatedParent' === $class) {
             eval('namespace Symfony\Bridge\Debug\Tests\Fixtures; class ExtendsDeprecatedParent extends \\'.__NAMESPACE__.'\Fixtures\DeprecatedClass {}');
-        } elseif ('Test\\'.__NAMESPACE__.'\DeprecatedParentClass' === $class) {
+        } elseif ('Test\\'.DeprecatedParentClass::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class DeprecatedParentClass extends \\'.__NAMESPACE__.'\Fixtures\DeprecatedClass {}');
-        } elseif ('Test\\'.__NAMESPACE__.'\DeprecatedInterfaceClass' === $class) {
+        } elseif ('Test\\'.DeprecatedInterfaceClass::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class DeprecatedInterfaceClass implements \\'.__NAMESPACE__.'\Fixtures\DeprecatedInterface {}');
-        } elseif ('Test\\'.__NAMESPACE__.'\NonDeprecatedInterfaceClass' === $class) {
+        } elseif ('Test\\'.NonDeprecatedInterfaceClass::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class NonDeprecatedInterfaceClass implements \\'.__NAMESPACE__.'\Fixtures\NonDeprecatedInterface {}');
-        } elseif ('Test\\'.__NAMESPACE__.'\Float' === $class) {
+        } elseif ('Test\\'.Float::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class Float {}');
-        } elseif (0 === strpos($class, 'Test\\'.__NAMESPACE__.'\ExtendsFinalClass')) {
+        } elseif (0 === strpos($class, 'Test\\'.ExtendsFinalClass::class)) {
             $classShortName = substr($class, strrpos($class, '\\') + 1);
             eval('namespace Test\\'.__NAMESPACE__.'; class '.$classShortName.' extends \\'.__NAMESPACE__.'\Fixtures\\'.substr($classShortName, 7).' {}');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsAnnotatedClass' === $class) {
+        } elseif ('Test\\'.ExtendsAnnotatedClass::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsAnnotatedClass extends \\'.__NAMESPACE__.'\Fixtures\AnnotatedClass {
                 public function deprecatedMethod() { }
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsInternals' === $class) {
+        } elseif ('Test\\'.ExtendsInternals::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsInternals extends ExtendsInternalsParent {
                 use \\'.__NAMESPACE__.'\Fixtures\InternalTrait;
 
                 public function internalMethod() { }
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsInternalsParent' === $class) {
+        } elseif ('Test\\'.ExtendsInternalsParent::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsInternalsParent extends \\'.__NAMESPACE__.'\Fixtures\InternalClass implements \\'.__NAMESPACE__.'\Fixtures\InternalInterface { }');
-        } elseif ('Test\\'.__NAMESPACE__.'\UseTraitWithInternalMethod' === $class) {
+        } elseif ('Test\\'.UseTraitWithInternalMethod::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class UseTraitWithInternalMethod { use \\'.__NAMESPACE__.'\Fixtures\TraitWithInternalMethod; }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsVirtual' === $class) {
+        } elseif ('Test\\'.ExtendsVirtual::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsVirtual extends ExtendsVirtualParent implements \\'.__NAMESPACE__.'\Fixtures\VirtualSubInterface {
                 public function ownClassMethod() { }
                 public function classMethod() { }
                 public function sameLineInterfaceMethodNoBraces() { }
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsVirtualParent' === $class) {
+        } elseif ('Test\\'.ExtendsVirtualParent::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsVirtualParent extends ExtendsVirtualAbstract {
                 public function ownParentMethod() { }
                 public function traitMethod() { }
                 public function sameLineInterfaceMethod() { }
                 public function staticMethodNoBraces() { } // should be static
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsVirtualAbstract' === $class) {
+        } elseif ('Test\\'.ExtendsVirtualAbstract::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; abstract class ExtendsVirtualAbstract extends ExtendsVirtualAbstractBase {
                 public static function staticMethod() { }
                 public function ownAbstractMethod() { }
                 public function interfaceMethod() { }
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsVirtualAbstractBase' === $class) {
+        } elseif ('Test\\'.ExtendsVirtualAbstractBase::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; abstract class ExtendsVirtualAbstractBase extends \\'.__NAMESPACE__.'\Fixtures\VirtualClass implements \\'.__NAMESPACE__.'\Fixtures\VirtualInterface {
                 public function ownAbstractBaseMethod() { }
             }');
-        } elseif ('Test\\'.__NAMESPACE__.'\ExtendsVirtualMagicCall' === $class) {
+        } elseif ('Test\\'.ExtendsVirtualMagicCall::class === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsVirtualMagicCall extends \\'.__NAMESPACE__.'\Fixtures\VirtualClassMagicCall implements \\'.__NAMESPACE__.'\Fixtures\VirtualInterface {
             }');
         }
-
-        return null;
     }
 }

Tests/ErrorHandlerTest.php

@@ -25,6 +25,8 @@ use Symfony\Component\Debug\Tests\Fixtures\LoggerThatSetAnErrorHandler;
  *
  * @author Robert Schönthal <seroscho@googlemail.com>
  * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @group legacy
  */
 class ErrorHandlerTest extends TestCase
 {
@@ -101,9 +103,14 @@ class ErrorHandlerTest extends TestCase
             $this->fail('ErrorException expected');
         } catch (\ErrorException $exception) {
             // if an exception is thrown, the test passed
-            $this->assertEquals(E_NOTICE, $exception->getSeverity());
+            if (\PHP_VERSION_ID < 80000) {
+                $this->assertEquals(E_NOTICE, $exception->getSeverity());
+                $this->assertMatchesRegularExpression('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
+            } else {
+                $this->assertEquals(E_WARNING, $exception->getSeverity());
+                $this->assertMatchesRegularExpression('/^Warning: Undefined variable \$(foo|bar)/', $exception->getMessage());
+            }
             $this->assertEquals(__FILE__, $exception->getFile());
-            $this->assertRegExp('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
 
             $trace = $exception->getTrace();
 
@@ -247,11 +254,17 @@ class ErrorHandlerTest extends TestCase
 
             $line = null;
             $logArgCheck = function ($level, $message, $context) use (&$line) {
-                $this->assertEquals('Notice: Undefined variable: undefVar', $message);
                 $this->assertArrayHasKey('exception', $context);
                 $exception = $context['exception'];
+
+                if (\PHP_VERSION_ID < 80000) {
+                    $this->assertEquals('Notice: Undefined variable: undefVar', $message);
+                    $this->assertSame(E_NOTICE, $exception->getSeverity());
+                } else {
+                    $this->assertEquals('Warning: Undefined variable $undefVar', $message);
+                    $this->assertSame(E_WARNING, $exception->getSeverity());
+                }
                 $this->assertInstanceOf(SilencedErrorContext::class, $exception);
-                $this->assertSame(E_NOTICE, $exception->getSeverity());
                 $this->assertSame(__FILE__, $exception->getFile());
                 $this->assertSame($line, $exception->getLine());
                 $this->assertNotEmpty($exception->getTrace());
@@ -265,8 +278,13 @@ class ErrorHandlerTest extends TestCase
             ;
 
             $handler = ErrorHandler::register();
-            $handler->setDefaultLogger($logger, E_NOTICE);
-            $handler->screamAt(E_NOTICE);
+            if (\PHP_VERSION_ID < 80000) {
+                $handler->setDefaultLogger($logger, E_NOTICE);
+                $handler->screamAt(E_NOTICE);
+            } else {
+                $handler->setDefaultLogger($logger, E_WARNING);
+                $handler->screamAt(E_WARNING);
+            }
             unset($undefVar);
             $line = __LINE__ + 1;
             @$undefVar++;
@@ -307,6 +325,26 @@ class ErrorHandlerTest extends TestCase
         }
     }
 
+    public function testHandleErrorWithAnonymousClass()
+    {
+        $handler = ErrorHandler::register();
+        $handler->throwAt(E_USER_WARNING, true);
+        try {
+            $handler->handleError(E_USER_WARNING, 'foo '.\get_class(new class() extends \stdClass {
+            }).' bar', 'foo.php', 12);
+            $this->fail('Exception expected.');
+        } catch (\ErrorException $e) {
+        } finally {
+            restore_error_handler();
+            restore_exception_handler();
+        }
+
+        $this->assertSame('User Warning: foo stdClass@anonymous bar', $e->getMessage());
+        $this->assertSame(E_USER_WARNING, $e->getSeverity());
+        $this->assertSame('foo.php', $e->getFile());
+        $this->assertSame(12, $e->getLine());
+    }
+
     public function testHandleDeprecation()
     {
         $logArgCheck = function ($level, $message, $context) {
@@ -327,8 +365,6 @@ class ErrorHandlerTest extends TestCase
         $handler = new ErrorHandler();
         $handler->setDefaultLogger($logger);
         @$handler->handleError(E_USER_DEPRECATED, 'Foo deprecation', __FILE__, __LINE__, []);
-
-        restore_error_handler();
     }
 
     public function testHandleException()

Tests/Exception/FlattenExceptionTest.php

@@ -30,6 +30,9 @@ use Symfony\Component\HttpKernel\Exception\TooManyRequestsHttpException;
 use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
 use Symfony\Component\HttpKernel\Exception\UnsupportedMediaTypeHttpException;
 
+/**
+ * @group legacy
+ */
 class FlattenExceptionTest extends TestCase
 {
     public function testStatusCode()
@@ -171,9 +174,9 @@ class FlattenExceptionTest extends TestCase
 
         $flattened = FlattenException::create($exception)->getPrevious();
 
-        $this->assertEquals($flattened->getMessage(), 'Oh noes!', 'The message is copied from the original exception.');
-        $this->assertEquals($flattened->getCode(), 42, 'The code is copied from the original exception.');
-        $this->assertEquals($flattened->getClass(), 'ParseError', 'The class is set to the class of the original exception');
+        $this->assertEquals('Oh noes!', $flattened->getMessage(), 'The message is copied from the original exception.');
+        $this->assertEquals(42, $flattened->getCode(), 'The code is copied from the original exception.');
+        $this->assertEquals('ParseError', $flattened->getClass(), 'The class is set to the class of the original exception');
     }
 
     /**
@@ -237,6 +240,10 @@ class FlattenExceptionTest extends TestCase
 
     public function testArguments()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
+        }
+
         $dh = opendir(__DIR__);
         $fh = tmpfile();
 
@@ -293,12 +300,16 @@ class FlattenExceptionTest extends TestCase
         $this->assertSame(['float', INF], $array[$i++]);
 
         // assertEquals() does not like NAN values.
-        $this->assertEquals($array[$i][0], 'float');
-        $this->assertNan($array[$i++][1]);
+        $this->assertEquals('float', $array[$i][0]);
+        $this->assertNan($array[$i][1]);
     }
 
     public function testRecursionInArguments()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
+        }
+
         $a = null;
         $a = ['foo', [2, &$a]];
         $exception = $this->createException($a);
@@ -310,6 +321,10 @@ class FlattenExceptionTest extends TestCase
 
     public function testTooBigArray()
     {
+        if (\PHP_VERSION_ID >= 70400) {
+            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
+        }
+
         $a = [];
         for ($i = 0; $i < 20; ++$i) {
             for ($j = 0; $j < 50; ++$j) {
@@ -340,6 +355,11 @@ class FlattenExceptionTest extends TestCase
 
         $this->assertSame('RuntimeException@anonymous', $flattened->getClass());
 
+        $flattened->setClass(\get_class(new class('Oops') extends NotFoundHttpException {
+        }));
+
+        $this->assertSame('Symfony\Component\HttpKernel\Exception\NotFoundHttpException@anonymous', $flattened->getClass());
+
         $flattened = FlattenException::create(new \Exception(sprintf('Class "%s" blah.', \get_class(new class() extends \RuntimeException {
         }))));
 

Tests/ExceptionHandlerTest.php

@@ -19,6 +19,9 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 require_once __DIR__.'/HeaderMock.php';
 
+/**
+ * @group legacy
+ */
 class ExceptionHandlerTest extends TestCase
 {
     protected function setUp(): void
@@ -31,6 +34,9 @@ class ExceptionHandlerTest extends TestCase
         testHeader();
     }
 
+    /**
+     * @group legacy
+     */
     public function testDebug()
     {
         $handler = new ExceptionHandler(false);

Tests/FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

@@ -17,6 +17,9 @@ use Symfony\Component\Debug\DebugClassLoader;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
 
+/**
+ * @group legacy
+ */
 class ClassNotFoundFatalErrorHandlerTest extends TestCase
 {
     public static function setUpBeforeClass(): void
@@ -29,10 +32,14 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
             // get class loaders wrapped by DebugClassLoader
             if ($function[0] instanceof DebugClassLoader) {
                 $function = $function[0]->getClassLoader();
+
+                if (!\is_array($function)) {
+                    continue;
+                }
             }
 
             if ($function[0] instanceof ComposerClassLoader) {
-                $function[0]->add('Symfony_Component_Debug_Tests_Fixtures', \dirname(\dirname(\dirname(\dirname(\dirname(__DIR__))))));
+                $function[0]->add('Symfony_Component_Debug_Tests_Fixtures', \dirname(__DIR__, 5));
                 break;
             }
         }
@@ -61,7 +68,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
         }
 
         $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
-        $this->assertRegExp($translatedMessage, $exception->getMessage());
+        $this->assertEquals($translatedMessage, $exception->getMessage());
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
         $this->assertSame($error['line'], $exception->getLine());
@@ -83,7 +90,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'WhizBangFactory\' not found',
                 ],
-                "/^Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement\?$/",
+                "Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement?",
             ],
             [
                 [
@@ -92,7 +99,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\WhizBangFactory\' not found',
                 ],
-                "/^Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
+                "Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
             ],
             [
                 [
@@ -101,7 +108,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'UndefinedFunctionException\' not found',
                 ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
+                "Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -111,7 +118,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'PEARClass\' not found',
                 ],
-                "/^Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"\?$/",
+                "Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"?",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -121,7 +128,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -131,7 +138,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for \"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
                 [$autoloader, 'loadClass'],
             ],
             [
@@ -141,7 +148,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for \"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?/",
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -151,7 +158,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
                 function ($className) { /* do nothing here */ },
             ],
         ];

Tests/FatalErrorHandler/UndefinedFunctionFatalErrorHandlerTest.php

@@ -15,6 +15,9 @@ use PHPUnit\Framework\TestCase;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
 
+/**
+ * @group legacy
+ */
 class UndefinedFunctionFatalErrorHandlerTest extends TestCase
 {
     /**

Tests/FatalErrorHandler/UndefinedMethodFatalErrorHandlerTest.php

@@ -15,6 +15,9 @@ use PHPUnit\Framework\TestCase;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
 
+/**
+ * @group legacy
+ */
 class UndefinedMethodFatalErrorHandlerTest extends TestCase
 {
     /**

Tests/Fixtures/ErrorHandlerThatUsesThePreviousOne.php

@@ -15,8 +15,8 @@ class ErrorHandlerThatUsesThePreviousOne
         return $handler;
     }
 
-    public function handleError($type, $message, $file, $line, $context)
+    public function handleError()
     {
-        return \call_user_func(self::$previous, $type, $message, $file, $line, $context);
+        return \call_user_func_array(self::$previous, \func_get_args());
     }
 }

Tests/Fixtures/FinalClasses.php

@@ -41,7 +41,6 @@ class FinalClass4
 /**
  * @author John Doe
  *
- *
  * @final multiline
  * comment
  */

Tests/Fixtures/LoggerThatSetAnErrorHandler.php

@@ -6,7 +6,7 @@ use Symfony\Component\Debug\BufferingLogger;
 
 class LoggerThatSetAnErrorHandler extends BufferingLogger
 {
-    public function log($level, $message, array $context = [])
+    public function log($level, $message, array $context = []): void
     {
         set_error_handler('is_string');
         parent::log($level, $message, $context);

Tests/phpt/debug_class_loader.phpt

@@ -23,5 +23,6 @@ class_exists(ExtendedFinalMethod::class);
 
 ?>
 --EXPECTF--
+%A
 The "Symfony\Component\Debug\Tests\Fixtures\FinalMethod::finalMethod()" method is considered final. It may change without further notice as of its next major version. You should not extend it from "Symfony\Component\Debug\Tests\Fixtures\ExtendedFinalMethod".
 The "Symfony\Component\Debug\Tests\Fixtures\FinalMethod::finalMethod2()" method is considered final. It may change without further notice as of its next major version. You should not extend it from "Symfony\Component\Debug\Tests\Fixtures\ExtendedFinalMethod".

Tests/phpt/decorate_exception_hander.phpt

@@ -26,6 +26,7 @@ if (true) {
 
 ?>
 --EXPECTF--
+%A
 object(Symfony\Component\Debug\Exception\ClassNotFoundException)#%d (8) {
   ["message":protected]=>
   string(131) "Attempted to load class "missing" from namespace "Symfony\Component\Debug".

Tests/phpt/fatal_with_nested_handlers.phpt

@@ -35,6 +35,7 @@ array(1) {
   [0]=>
   string(37) "Error and exception handlers do match"
 }
+%A
 object(Symfony\Component\Debug\Exception\FatalErrorException)#%d (%d) {
   ["message":protected]=>
   string(179) "Error: Class Symfony\Component\Debug\Broken contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (JsonSerializable::jsonSerialize)"

composer.json

@@ -16,14 +16,15 @@
         }
     ],
     "require": {
-        "php": "^7.1.3",
-        "psr/log": "~1.0"
+        "php": ">=7.1.3",
+        "psr/log": "~1.0",
+        "symfony/polyfill-php80": "^1.15"
     },
     "conflict": {
         "symfony/http-kernel": "<3.4"
     },
     "require-dev": {
-        "symfony/http-kernel": "~3.4|~4.0"
+        "symfony/http-kernel": "^3.4|^4.0|^5.0"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Debug\\": "" },
@@ -34,7 +35,7 @@
     "minimum-stability": "dev",
     "extra": {
         "branch-alias": {
-            "dev-master": "4.3-dev"
+            "dev-master": "4.4-dev"
         }
     }
 }

phpunit.xml.dist

@@ -14,10 +14,7 @@
 
     <testsuites>
         <testsuite name="Symfony Debug Component Test Suite">
-            <directory>./Tests/</directory>
-        </testsuite>
-        <testsuite name="Symfony Debug Extension Test Suite">
-            <directory suffix=".phpt">./Resources/ext/tests/</directory>
+            <directory suffix=".phpt">./Tests/</directory>
         </testsuite>
     </testsuites>