minor #28114 [travis] merge "same Symfony version" jobs in one (nicolas-grekas)

This PR was merged into the 2.8 branch.

Discussion
----------

[travis] merge "same Symfony version" jobs in one

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  |
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Allowing to consume fewer jobs and save the 1 to 2 minutes bootstrap time of workers.

Commits
-------

9857ca07aa [travis] merge "same Symfony version" jobs in one

.gitattributes

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

BufferingLogger.php

@@ -1,44 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-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];
-    }
-
-    public function cleanLogs()
-    {
-        $logs = $this->logs;
-        $this->logs = [];
-
-        return $logs;
-    }
-}

CHANGELOG.md

@@ -1,75 +1,27 @@
 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
------
-
- * made the `ErrorHandler` and `ExceptionHandler` classes final
- * added `Exception\FlattenException::getAsString` and
-   `Exception\FlattenException::getTraceAsString` to increase compatibility to php
-   exception objects
-
-4.0.0
------
-
- * removed the symfony_debug extension
- * removed `ContextErrorException`
-
-3.4.0
------
-
- * deprecated `ErrorHandler::stackErrors()` and `ErrorHandler::unstackErrors()`
-
-3.3.0
------
-
- * deprecated the `ContextErrorException` class: use \ErrorException directly now
-
-3.2.0
------
-
- * `FlattenException::getTrace()` now returns additional type descriptions
-   `integer` and `float`.
-
-3.0.0
------
-
- * removed classes, methods and interfaces deprecated in 2.x
-
-2.8.0
------
-
- * added BufferingLogger for errors that happen before a proper logger is configured
- * allow throwing from `__toString()` with `return trigger_error($e, E_USER_ERROR);`
- * deprecate ExceptionHandler::createResponse
-
 2.7.0
 -----
 
- * added deprecations checking for parent interfaces/classes to DebugClassLoader
- * added ZTS support to symfony_debug extension
- * added symfony_debug_backtrace() to symfony_debug extension
-   to track the backtrace of fatal errors
+* added deprecations checking for parent interfaces/classes to DebugClassLoader
+* added ZTS support to symfony_debug extension
+* added symfony_debug_backtrace() to symfony_debug extension
+  to track the backtrace of fatal errors
 
 2.6.0
 -----
 
- * generalized ErrorHandler and ExceptionHandler,
-   with some new methods and others deprecated
- * enhanced error messages for uncaught exceptions
+* generalized ErrorHandler and ExceptionHandler,
+  with some new methods and others deprecated
+* enhanced error messages for uncaught exceptions
 
 2.5.0
 -----
 
- * added ExceptionHandler::setHandler()
- * added UndefinedMethodFatalErrorHandler
- * deprecated DummyException
+* added ExceptionHandler::setHandler()
+* added UndefinedMethodFatalErrorHandler
+* deprecated DummyException
 
 2.4.0
 -----

Debug.php

@@ -11,14 +11,10 @@
 
 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
 {
@@ -29,10 +25,13 @@ class Debug
      *
      * This method registers an error handler and an exception handler.
      *
+     * If the Symfony ClassLoader component is available, a special
+     * class loader is also registered.
+     *
      * @param int  $errorReportingLevel The level of error reporting you want
      * @param bool $displayErrors       Whether to display errors (for development) or just log them (for production)
      */
-    public static function enable($errorReportingLevel = \E_ALL, $displayErrors = true)
+    public static function enable($errorReportingLevel = null, $displayErrors = true)
     {
         if (static::$enabled) {
             return;
@@ -43,20 +42,19 @@ class Debug
         if (null !== $errorReportingLevel) {
             error_reporting($errorReportingLevel);
         } else {
-            error_reporting(\E_ALL);
+            error_reporting(-1);
         }
 
-        if (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true)) {
+        if (!\in_array(PHP_SAPI, array('cli', 'phpdbg'), true)) {
             ini_set('display_errors', 0);
             ExceptionHandler::register();
-        } elseif ($displayErrors && (!filter_var(ini_get('log_errors'), \FILTER_VALIDATE_BOOLEAN) || ini_get('error_log'))) {
+        } elseif ($displayErrors && (!ini_get('log_errors') || ini_get('error_log'))) {
             // CLI - display errors only if they're not already logged to STDERR
             ini_set('display_errors', 1);
         }
-        if ($displayErrors) {
-            ErrorHandler::register(new ErrorHandler(new BufferingLogger()));
-        } else {
-            ErrorHandler::register()->throwAt(0, true);
+        $handler = ErrorHandler::register();
+        if (!$displayErrors) {
+            $handler->throwAt(0, true);
         }
 
         DebugClassLoader::enable();

DebugClassLoader.php

@@ -11,10 +11,6 @@
 
 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.
  *
@@ -25,34 +21,37 @@ use PHPUnit\Framework\MockObject\Matcher\StatelessInvocation;
  * @author Fabien Potencier <fabien@symfony.com>
  * @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
 {
     private $classLoader;
     private $isFinder;
-    private $loaded = [];
+    private $loaded = array();
+    private $wasFinder;
     private static $caseCheck;
-    private static $checkedClasses = [];
-    private static $final = [];
-    private static $finalMethods = [];
-    private static $deprecated = [];
-    private static $internal = [];
-    private static $internalMethods = [];
-    private static $annotatedParameters = [];
-    private static $darwinCache = ['/' => ['/', []]];
-    private static $method = [];
+    private static $deprecated = array();
+    private static $php7Reserved = array('int', 'float', 'bool', 'string', 'true', 'false', 'null');
+    private static $darwinCache = array('/' => array('/', array()));
 
-    public function __construct(callable $classLoader)
+    /**
+     * @param callable|object $classLoader Passing an object is @deprecated since version 2.5 and support for it will be removed in 3.0
+     */
+    public function __construct($classLoader)
     {
-        $this->classLoader = $classLoader;
-        $this->isFinder = \is_array($classLoader) && method_exists($classLoader[0], 'findFile');
+        $this->wasFinder = is_object($classLoader) && method_exists($classLoader, 'findFile');
+
+        if ($this->wasFinder) {
+            @trigger_error('The '.__METHOD__.' method will no longer support receiving an object into its $classLoader argument in 3.0.', E_USER_DEPRECATED);
+            $this->classLoader = array($classLoader, 'loadClass');
+            $this->isFinder = true;
+        } else {
+            $this->classLoader = $classLoader;
+            $this->isFinder = is_array($classLoader) && method_exists($classLoader[0], 'findFile');
+        }
 
         if (!isset(self::$caseCheck)) {
-            $file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), \DIRECTORY_SEPARATOR);
-            $i = strrpos($file, \DIRECTORY_SEPARATOR);
+            $file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), DIRECTORY_SEPARATOR);
+            $i = strrpos($file, DIRECTORY_SEPARATOR);
             $dir = substr($file, 0, 1 + $i);
             $file = substr($file, 1 + $i);
             $test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file);
@@ -61,10 +60,10 @@ class DebugClassLoader
             if (false === $test || false === $i) {
                 // filesystem is case sensitive
                 self::$caseCheck = 0;
-            } elseif (substr($test, -\strlen($file)) === $file) {
+            } elseif (substr($test, -strlen($file)) === $file) {
                 // filesystem is case insensitive and realpath() normalizes the case of characters
                 self::$caseCheck = 1;
-            } elseif (false !== stripos(\PHP_OS, 'darwin')) {
+            } elseif (false !== stripos(PHP_OS, 'darwin')) {
                 // on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters
                 self::$caseCheck = 2;
             } else {
@@ -77,11 +76,11 @@ class DebugClassLoader
     /**
      * Gets the wrapped class loader.
      *
-     * @return callable The wrapped class loader
+     * @return callable|object A class loader. Since version 2.5, returning an object is @deprecated and support for it will be removed in 3.0
      */
     public function getClassLoader()
     {
-        return $this->classLoader;
+        return $this->wasFinder ? $this->classLoader[0] : $this->classLoader;
     }
 
     /**
@@ -90,10 +89,10 @@ class DebugClassLoader
     public static function enable()
     {
         // Ensures we don't hit https://bugs.php.net/42098
-        class_exists(\Symfony\Component\Debug\ErrorHandler::class);
-        class_exists(\Psr\Log\LogLevel::class);
+        class_exists('Symfony\Component\Debug\ErrorHandler');
+        class_exists('Psr\Log\LogLevel');
 
-        if (!\is_array($functions = spl_autoload_functions())) {
+        if (!is_array($functions = spl_autoload_functions())) {
             return;
         }
 
@@ -102,8 +101,8 @@ class DebugClassLoader
         }
 
         foreach ($functions as $function) {
-            if (!\is_array($function) || !$function[0] instanceof self) {
-                $function = [new static($function), 'loadClass'];
+            if (!is_array($function) || !$function[0] instanceof self) {
+                $function = array(new static($function), 'loadClass');
             }
 
             spl_autoload_register($function);
@@ -115,7 +114,7 @@ class DebugClassLoader
      */
     public static function disable()
     {
-        if (!\is_array($functions = spl_autoload_functions())) {
+        if (!is_array($functions = spl_autoload_functions())) {
             return;
         }
 
@@ -124,7 +123,7 @@ class DebugClassLoader
         }
 
         foreach ($functions as $function) {
-            if (\is_array($function) && $function[0] instanceof self) {
+            if (is_array($function) && $function[0] instanceof self) {
                 $function = $function[0]->getClassLoader();
             }
 
@@ -133,11 +132,21 @@ class DebugClassLoader
     }
 
     /**
+     * Finds a file by class name.
+     *
+     * @param string $class A class name to resolve to file
+     *
      * @return string|null
+     *
+     * @deprecated since version 2.5, to be removed in 3.0.
      */
     public function findFile($class)
     {
-        return $this->isFinder ? $this->classLoader[0]->findFile($class) ?: null : null;
+        @trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        if ($this->wasFinder) {
+            return $this->classLoader[0]->findFile($class);
+        }
     }
 
     /**
@@ -145,394 +154,172 @@ class DebugClassLoader
      *
      * @param string $class The name of the class
      *
+     * @return bool|null True, if loaded
+     *
      * @throws \RuntimeException
      */
     public function loadClass($class)
     {
-        $e = error_reporting(error_reporting() | \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR);
+        ErrorHandler::stackErrors();
 
         try {
             if ($this->isFinder && !isset($this->loaded[$class])) {
                 $this->loaded[$class] = true;
-                if (!$file = $this->classLoader[0]->findFile($class) ?: false) {
-                    // no-op
-                } elseif (\function_exists('opcache_is_script_cached') && @opcache_is_script_cached($file)) {
-                    include $file;
-
-                    return;
-                } elseif (false === include $file) {
-                    return;
+                if ($file = $this->classLoader[0]->findFile($class)) {
+                    require $file;
                 }
             } else {
-                ($this->classLoader)($class);
+                call_user_func($this->classLoader, $class);
                 $file = false;
             }
-        } finally {
-            error_reporting($e);
+        } catch (\Exception $e) {
+            ErrorHandler::unstackErrors();
+
+            throw $e;
+        } catch (\Throwable $e) {
+            ErrorHandler::unstackErrors();
+
+            throw $e;
         }
 
-        $this->checkClass($class, $file);
-    }
+        ErrorHandler::unstackErrors();
 
-    private function checkClass(string $class, string $file = null)
-    {
-        $exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
+        $exists = class_exists($class, false) || interface_exists($class, false) || (function_exists('trait_exists') && trait_exists($class, false));
 
-        if (null !== $file && $class && '\\' === $class[0]) {
+        if ($class && '\\' === $class[0]) {
             $class = substr($class, 1);
         }
 
         if ($exists) {
-            if (isset(self::$checkedClasses[$class])) {
-                return;
-            }
-            self::$checkedClasses[$class] = true;
-
             $refl = new \ReflectionClass($class);
-            if (null === $file && $refl->isInternal()) {
-                return;
-            }
             $name = $refl->getName();
 
             if ($name !== $class && 0 === strcasecmp($name, $class)) {
-                throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: "%s" vs "%s".', $class, $name));
+                throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: %s vs %s', $class, $name));
             }
 
-            $deprecations = $this->checkAnnotations($refl, $name);
-
-            foreach ($deprecations as $message) {
-                @trigger_error($message, \E_USER_DEPRECATED);
-            }
-        }
-
-        if (!$file) {
-            return;
-        }
-
-        if (!$exists) {
-            if (false !== strpos($class, '/')) {
-                throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class));
-            }
-
-            throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file));
-        }
-
-        if (self::$caseCheck && $message = $this->checkCase($refl, $file, $class)) {
-            throw new \RuntimeException(sprintf('Case mismatch between class and real file names: "%s" vs "%s" in "%s".', $message[0], $message[1], $message[2]));
-        }
-    }
-
-    public function checkAnnotations(\ReflectionClass $refl, $class)
-    {
-        $deprecations = [];
-
-        // Don't trigger deprecations for classes in the same vendor
-        if (2 > $len = 1 + (strpos($class, '\\') ?: strpos($class, '_'))) {
-            $len = 0;
-            $ns = '';
-        } else {
-            $ns = str_replace('_', '\\', substr($class, 0, $len));
-        }
-
-        // Detect annotations on the class
-        if (false !== $doc = $refl->getDocComment()) {
-            foreach (['final', 'deprecated', 'internal'] as $annotation) {
-                if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
-                    self::${$annotation}[$class] = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : '';
-                }
-            }
-
-            if ($refl->isInterface() && false !== strpos($doc, 'method') && preg_match_all('#\n \* @method\s+(static\s+)?+(?:[\w\|&\[\]\\\]+\s+)?(\w+(?:\s*\([^\)]*\))?)+(.+?([[:punct:]]\s*)?)?(?=\r?\n \*(?: @|/$|\r?\n))#', $doc, $notice, \PREG_SET_ORDER)) {
-                foreach ($notice as $method) {
-                    $static = '' !== $method[1];
-                    $name = $method[2];
-                    $description = $method[3] ?? null;
-                    if (false === strpos($name, '(')) {
-                        $name .= '()';
-                    }
-                    if (null !== $description) {
-                        $description = trim($description);
-                        if (!isset($method[4])) {
-                            $description .= '.';
-                        }
-                    }
-                    self::$method[$class][] = [$class, $name, $static, $description];
-                }
-            }
-        }
-
-        $parent = get_parent_class($class);
-        $parentAndOwnInterfaces = $this->getOwnInterfaces($class, $parent ?: null);
-        if ($parent) {
-            $parentAndOwnInterfaces[$parent] = $parent;
-
-            if (!isset(self::$checkedClasses[$parent])) {
-                $this->checkClass($parent);
-            }
-
-            if (isset(self::$final[$parent])) {
-                $deprecations[] = sprintf('The "%s" class is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $parent, self::$final[$parent], $class);
-            }
-        }
-
-        // Detect if the parent is annotated
-        foreach ($parentAndOwnInterfaces + class_uses($class, false) as $use) {
-            if (!isset(self::$checkedClasses[$use])) {
-                $this->checkClass($use);
-            }
-            if (isset(self::$deprecated[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len) && !isset(self::$deprecated[$class])) {
-                $type = class_exists($class, false) ? 'class' : (interface_exists($class, false) ? 'interface' : 'trait');
-                $verb = class_exists($use, false) || interface_exists($class, false) ? 'extends' : (interface_exists($use, false) ? 'implements' : 'uses');
-
-                $deprecations[] = sprintf('The "%s" %s %s "%s" that is deprecated%s.', $class, $type, $verb, $use, self::$deprecated[$use]);
-            }
-            if (isset(self::$internal[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len)) {
-                $deprecations[] = sprintf('The "%s" %s is considered internal%s. It may change without further notice. You should not use it from "%s".', $use, class_exists($use, false) ? 'class' : (interface_exists($use, false) ? 'interface' : 'trait'), self::$internal[$use], $class);
-            }
-            if (isset(self::$method[$use])) {
-                if ($refl->isAbstract()) {
-                    if (isset(self::$method[$class])) {
-                        self::$method[$class] = array_merge(self::$method[$class], self::$method[$use]);
-                    } else {
-                        self::$method[$class] = self::$method[$use];
-                    }
-                } elseif (!$refl->isInterface()) {
-                    $hasCall = $refl->hasMethod('__call');
-                    $hasStaticCall = $refl->hasMethod('__callStatic');
-                    foreach (self::$method[$use] as $method) {
-                        [$interface, $name, $static, $description] = $method;
-                        if ($static ? $hasStaticCall : $hasCall) {
-                            continue;
-                        }
-                        $realName = substr($name, 0, strpos($name, '('));
-                        if (!$refl->hasMethod($realName) || !($methodRefl = $refl->getMethod($realName))->isPublic() || ($static && !$methodRefl->isStatic()) || (!$static && $methodRefl->isStatic())) {
-                            $deprecations[] = sprintf('Class "%s" should implement method "%s::%s"%s', $class, ($static ? 'static ' : '').$interface, $name, null == $description ? '.' : ': '.$description);
-                        }
-                    }
-                }
-            }
-        }
-
-        if (trait_exists($class)) {
-            return $deprecations;
-        }
-
-        // Inherit @final, @internal and @param annotations for methods
-        self::$finalMethods[$class] = [];
-        self::$internalMethods[$class] = [];
-        self::$annotatedParameters[$class] = [];
-        foreach ($parentAndOwnInterfaces as $use) {
-            foreach (['finalMethods', 'internalMethods', 'annotatedParameters'] as $property) {
-                if (isset(self::${$property}[$use])) {
-                    self::${$property}[$class] = self::${$property}[$class] ? self::${$property}[$use] + self::${$property}[$class] : self::${$property}[$use];
-                }
-            }
-        }
-
-        foreach ($refl->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $method) {
-            if ($method->class !== $class) {
-                continue;
-            }
-
-            if ($parent && isset(self::$finalMethods[$parent][$method->name])) {
-                [$declaringClass, $message] = self::$finalMethods[$parent][$method->name];
-                $deprecations[] = sprintf('The "%s::%s()" method is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class);
-            }
-
-            if (isset(self::$internalMethods[$class][$method->name])) {
-                [$declaringClass, $message] = self::$internalMethods[$class][$method->name];
-                if (strncmp($ns, $declaringClass, $len)) {
-                    $deprecations[] = sprintf('The "%s::%s()" method is considered internal%s. It may change without further notice. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class);
-                }
-            }
-
-            // To read method annotations
-            $doc = $method->getDocComment();
-
-            if (isset(self::$annotatedParameters[$class][$method->name])) {
-                $definedParameters = [];
-                foreach ($method->getParameters() as $parameter) {
-                    $definedParameters[$parameter->name] = true;
-                }
-
-                foreach (self::$annotatedParameters[$class][$method->name] as $parameterName => $deprecation) {
-                    if (!isset($definedParameters[$parameterName]) && !($doc && preg_match("/\\n\\s+\\* @param +((?(?!callable *\().*?|callable *\(.*\).*?))(?<= )\\\${$parameterName}\\b/", $doc))) {
-                        $deprecations[] = sprintf($deprecation, $class);
-                    }
-                }
-            }
-
-            if (!$doc) {
-                continue;
-            }
-
-            $finalOrInternal = false;
-
-            foreach (['final', 'internal'] as $annotation) {
-                if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) {
-                    $message = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : '';
-                    self::${$annotation.'Methods'}[$class][$method->name] = [$class, $message];
-                    $finalOrInternal = true;
-                }
-            }
-
-            if ($finalOrInternal || $method->isConstructor() || false === strpos($doc, '@param') || StatelessInvocation::class === $class) {
-                continue;
-            }
-            if (!preg_match_all('#\n\s+\* @param +((?(?!callable *\().*?|callable *\(.*\).*?))(?<= )\$([a-zA-Z0-9_\x7f-\xff]++)#', $doc, $matches, \PREG_SET_ORDER)) {
-                continue;
-            }
-            if (!isset(self::$annotatedParameters[$class][$method->name])) {
-                $definedParameters = [];
-                foreach ($method->getParameters() as $parameter) {
-                    $definedParameters[$parameter->name] = true;
-                }
-            }
-            foreach ($matches as [, $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 %s "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, interface_exists($class) ? 'interface' : 'parent class', $method->class);
-                }
-            }
-        }
-
-        return $deprecations;
-    }
-
-    /**
-     * @param string $file
-     * @param string $class
-     *
-     * @return array|null
-     */
-    public function checkCase(\ReflectionClass $refl, $file, $class)
-    {
-        $real = explode('\\', $class.strrchr($file, '.'));
-        $tail = explode(\DIRECTORY_SEPARATOR, str_replace('/', \DIRECTORY_SEPARATOR, $file));
-
-        $i = \count($tail) - 1;
-        $j = \count($real) - 1;
-
-        while (isset($tail[$i], $real[$j]) && $tail[$i] === $real[$j]) {
-            --$i;
-            --$j;
-        }
-
-        array_splice($tail, 0, $i + 1);
-
-        if (!$tail) {
-            return null;
-        }
-
-        $tail = \DIRECTORY_SEPARATOR.implode(\DIRECTORY_SEPARATOR, $tail);
-        $tailLen = \strlen($tail);
-        $real = $refl->getFileName();
-
-        if (2 === self::$caseCheck) {
-            $real = $this->darwinRealpath($real);
-        }
-
-        if (0 === substr_compare($real, $tail, -$tailLen, $tailLen, true)
-            && 0 !== substr_compare($real, $tail, -$tailLen, $tailLen, false)
-        ) {
-            return [substr($tail, -$tailLen + 1), substr($real, -$tailLen + 1), substr($real, 0, -$tailLen + 1)];
-        }
-
-        return null;
-    }
-
-    /**
-     * `realpath` on MacOSX doesn't normalize the case of characters.
-     */
-    private function darwinRealpath(string $real): string
-    {
-        $i = 1 + strrpos($real, '/');
-        $file = substr($real, $i);
-        $real = substr($real, 0, $i);
-
-        if (isset(self::$darwinCache[$real])) {
-            $kDir = $real;
-        } else {
-            $kDir = strtolower($real);
-
-            if (isset(self::$darwinCache[$kDir])) {
-                $real = self::$darwinCache[$kDir][0];
+            if (in_array(strtolower($refl->getShortName()), self::$php7Reserved)) {
+                @trigger_error(sprintf('%s uses a reserved class name (%s) that will break on PHP 7 and higher', $name, $refl->getShortName()), E_USER_DEPRECATED);
+            } elseif (preg_match('#\n \* @deprecated (.*?)\r?\n \*(?: @|/$)#s', $refl->getDocComment(), $notice)) {
+                self::$deprecated[$name] = preg_replace('#\s*\r?\n \* +#', ' ', $notice[1]);
             } else {
-                $dir = getcwd();
-
-                if (!@chdir($real)) {
-                    return $real.$file;
+                if (2 > $len = 1 + (strpos($name, '\\') ?: strpos($name, '_'))) {
+                    $len = 0;
+                    $ns = '';
+                } else {
+                    $ns = substr($name, 0, $len);
                 }
+                $parent = get_parent_class($class);
 
-                $real = getcwd().'/';
-                chdir($dir);
-
-                $dir = $real;
-                $k = $kDir;
-                $i = \strlen($dir) - 1;
-                while (!isset(self::$darwinCache[$k])) {
-                    self::$darwinCache[$k] = [$dir, []];
-                    self::$darwinCache[$dir] = &self::$darwinCache[$k];
-
-                    while ('/' !== $dir[--$i]) {
+                if (!$parent || strncmp($ns, $parent, $len)) {
+                    if ($parent && isset(self::$deprecated[$parent]) && strncmp($ns, $parent, $len)) {
+                        @trigger_error(sprintf('The %s class extends %s that is deprecated %s', $name, $parent, self::$deprecated[$parent]), E_USER_DEPRECATED);
                     }
-                    $k = substr($k, 0, ++$i);
-                    $dir = substr($dir, 0, $i--);
-                }
-            }
-        }
 
-        $dirFiles = self::$darwinCache[$kDir][1];
-
-        if (!isset($dirFiles[$file]) && ') : eval()\'d code' === substr($file, -17)) {
-            // Get the file name from "file_name.php(123) : eval()'d code"
-            $file = substr($file, 0, strrpos($file, '(', -17));
-        }
-
-        if (isset($dirFiles[$file])) {
-            return $real.$dirFiles[$file];
-        }
-
-        $kFile = strtolower($file);
-
-        if (!isset($dirFiles[$kFile])) {
-            foreach (scandir($real, 2) as $f) {
-                if ('.' !== $f[0]) {
-                    $dirFiles[$f] = $f;
-                    if ($f === $file) {
-                        $kFile = $k = $file;
-                    } elseif ($f !== $k = strtolower($f)) {
-                        $dirFiles[$k] = $f;
+                    foreach (class_implements($class) as $interface) {
+                        if (isset(self::$deprecated[$interface]) && strncmp($ns, $interface, $len) && !is_subclass_of($parent, $interface)) {
+                            @trigger_error(sprintf('The %s %s %s that is deprecated %s', $name, interface_exists($class) ? 'interface extends' : 'class implements', $interface, self::$deprecated[$interface]), E_USER_DEPRECATED);
+                        }
                     }
                 }
             }
-            self::$darwinCache[$kDir][1] = $dirFiles;
         }
 
-        return $real.$dirFiles[$kFile];
-    }
+        if ($file) {
+            if (!$exists) {
+                if (false !== strpos($class, '/')) {
+                    throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class));
+                }
 
-    /**
-     * `class_implements` includes interfaces from the parents so we have to manually exclude them.
-     *
-     * @return string[]
-     */
-    private function getOwnInterfaces(string $class, ?string $parent): array
-    {
-        $ownInterfaces = class_implements($class, false);
-
-        if ($parent) {
-            foreach (class_implements($parent, false) as $interface) {
-                unset($ownInterfaces[$interface]);
+                throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file));
             }
-        }
+            if (self::$caseCheck) {
+                $real = explode('\\', $class.strrchr($file, '.'));
+                $tail = explode(DIRECTORY_SEPARATOR, str_replace('/', DIRECTORY_SEPARATOR, $file));
 
-        foreach ($ownInterfaces as $interface) {
-            foreach (class_implements($interface) as $interface) {
-                unset($ownInterfaces[$interface]);
+                $i = count($tail) - 1;
+                $j = count($real) - 1;
+
+                while (isset($tail[$i], $real[$j]) && $tail[$i] === $real[$j]) {
+                    --$i;
+                    --$j;
+                }
+
+                array_splice($tail, 0, $i + 1);
             }
-        }
+            if (self::$caseCheck && $tail) {
+                $tail = DIRECTORY_SEPARATOR.implode(DIRECTORY_SEPARATOR, $tail);
+                $tailLen = strlen($tail);
+                $real = $refl->getFileName();
 
-        return $ownInterfaces;
+                if (2 === self::$caseCheck) {
+                    // realpath() on MacOSX doesn't normalize the case of characters
+
+                    $i = 1 + strrpos($real, '/');
+                    $file = substr($real, $i);
+                    $real = substr($real, 0, $i);
+
+                    if (isset(self::$darwinCache[$real])) {
+                        $kDir = $real;
+                    } else {
+                        $kDir = strtolower($real);
+
+                        if (isset(self::$darwinCache[$kDir])) {
+                            $real = self::$darwinCache[$kDir][0];
+                        } else {
+                            $dir = getcwd();
+                            chdir($real);
+                            $real = getcwd().'/';
+                            chdir($dir);
+
+                            $dir = $real;
+                            $k = $kDir;
+                            $i = strlen($dir) - 1;
+                            while (!isset(self::$darwinCache[$k])) {
+                                self::$darwinCache[$k] = array($dir, array());
+                                self::$darwinCache[$dir] = &self::$darwinCache[$k];
+
+                                while ('/' !== $dir[--$i]) {
+                                }
+                                $k = substr($k, 0, ++$i);
+                                $dir = substr($dir, 0, $i--);
+                            }
+                        }
+                    }
+
+                    $dirFiles = self::$darwinCache[$kDir][1];
+
+                    if (isset($dirFiles[$file])) {
+                        $kFile = $file;
+                    } else {
+                        $kFile = strtolower($file);
+
+                        if (!isset($dirFiles[$kFile])) {
+                            foreach (scandir($real, 2) as $f) {
+                                if ('.' !== $f[0]) {
+                                    $dirFiles[$f] = $f;
+                                    if ($f === $file) {
+                                        $kFile = $k = $file;
+                                    } elseif ($f !== $k = strtolower($f)) {
+                                        $dirFiles[$k] = $f;
+                                    }
+                                }
+                            }
+                            self::$darwinCache[$kDir][1] = $dirFiles;
+                        }
+                    }
+
+                    $real .= $dirFiles[$kFile];
+                }
+
+                if (0 === substr_compare($real, $tail, -$tailLen, $tailLen, true)
+                  && 0 !== substr_compare($real, $tail, -$tailLen, $tailLen, false)
+                ) {
+                    throw new \RuntimeException(sprintf('Case mismatch between class and real file names: %s vs %s in %s', substr($tail, -$tailLen + 1), substr($real, -$tailLen + 1), substr($real, 0, -$tailLen + 1)));
+                }
+            }
+
+            return true;
+        }
     }
 }

ErrorHandler.php

@@ -11,19 +11,16 @@
 
 namespace Symfony\Component\Debug;
 
-use Psr\Log\LoggerInterface;
 use Psr\Log\LogLevel;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Debug\Exception\ContextErrorException;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\Exception\FatalThrowableError;
-use Symfony\Component\Debug\Exception\FlattenException;
 use Symfony\Component\Debug\Exception\OutOfMemoryException;
-use Symfony\Component\Debug\Exception\SilencedErrorContext;
-use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
-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);
+use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
+use Symfony\Component\Debug\FatalErrorHandler\FatalErrorHandlerInterface;
 
 /**
  * A generic ErrorHandler for the PHP engine.
@@ -32,7 +29,7 @@ use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
  * - thrownErrors: errors thrown as \ErrorException
  * - loggedErrors: logged errors, when not @-silenced
  * - scopedErrors: errors thrown or logged with their local context
- * - tracedErrors: errors logged with their stack trace
+ * - tracedErrors: errors logged with their stack trace, only once for repeated errors
  * - screamedErrors: never @-silenced errors
  *
  * Each error level can be logged by a dedicated PSR-3 logger object.
@@ -46,110 +43,122 @@ use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
  * can see them and weight them as more important to fix than others of the same level.
  *
  * @author Nicolas Grekas <p@tchwork.com>
- * @author Grégoire Pineau <lyrixx@lyrixx.info>
- *
- * @final since Symfony 4.3
- *
- * @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\ErrorHandler instead.
  */
 class ErrorHandler
 {
-    private $levels = [
-        \E_DEPRECATED => 'Deprecated',
-        \E_USER_DEPRECATED => 'User Deprecated',
-        \E_NOTICE => 'Notice',
-        \E_USER_NOTICE => 'User Notice',
-        \E_STRICT => 'Runtime Notice',
-        \E_WARNING => 'Warning',
-        \E_USER_WARNING => 'User Warning',
-        \E_COMPILE_WARNING => 'Compile Warning',
-        \E_CORE_WARNING => 'Core Warning',
-        \E_USER_ERROR => 'User Error',
-        \E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
-        \E_COMPILE_ERROR => 'Compile Error',
-        \E_PARSE => 'Parse Error',
-        \E_ERROR => 'Error',
-        \E_CORE_ERROR => 'Core Error',
-    ];
+    /**
+     * @deprecated since version 2.6, to be removed in 3.0.
+     */
+    const TYPE_DEPRECATION = -100;
 
-    private $loggers = [
-        \E_DEPRECATED => [null, LogLevel::INFO],
-        \E_USER_DEPRECATED => [null, LogLevel::INFO],
-        \E_NOTICE => [null, LogLevel::WARNING],
-        \E_USER_NOTICE => [null, LogLevel::WARNING],
-        \E_STRICT => [null, LogLevel::WARNING],
-        \E_WARNING => [null, LogLevel::WARNING],
-        \E_USER_WARNING => [null, LogLevel::WARNING],
-        \E_COMPILE_WARNING => [null, LogLevel::WARNING],
-        \E_CORE_WARNING => [null, LogLevel::WARNING],
-        \E_USER_ERROR => [null, LogLevel::CRITICAL],
-        \E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
-        \E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
-        \E_PARSE => [null, LogLevel::CRITICAL],
-        \E_ERROR => [null, LogLevel::CRITICAL],
-        \E_CORE_ERROR => [null, LogLevel::CRITICAL],
-    ];
+    private $levels = array(
+        E_DEPRECATED => 'Deprecated',
+        E_USER_DEPRECATED => 'User Deprecated',
+        E_NOTICE => 'Notice',
+        E_USER_NOTICE => 'User Notice',
+        E_STRICT => 'Runtime Notice',
+        E_WARNING => 'Warning',
+        E_USER_WARNING => 'User Warning',
+        E_COMPILE_WARNING => 'Compile Warning',
+        E_CORE_WARNING => 'Core Warning',
+        E_USER_ERROR => 'User Error',
+        E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
+        E_COMPILE_ERROR => 'Compile Error',
+        E_PARSE => 'Parse Error',
+        E_ERROR => 'Error',
+        E_CORE_ERROR => 'Core Error',
+    );
+
+    private $loggers = array(
+        E_DEPRECATED => array(null, LogLevel::INFO),
+        E_USER_DEPRECATED => array(null, LogLevel::INFO),
+        E_NOTICE => array(null, LogLevel::WARNING),
+        E_USER_NOTICE => array(null, LogLevel::WARNING),
+        E_STRICT => array(null, LogLevel::WARNING),
+        E_WARNING => array(null, LogLevel::WARNING),
+        E_USER_WARNING => array(null, LogLevel::WARNING),
+        E_COMPILE_WARNING => array(null, LogLevel::WARNING),
+        E_CORE_WARNING => array(null, LogLevel::WARNING),
+        E_USER_ERROR => array(null, LogLevel::CRITICAL),
+        E_RECOVERABLE_ERROR => array(null, LogLevel::CRITICAL),
+        E_COMPILE_ERROR => array(null, LogLevel::CRITICAL),
+        E_PARSE => array(null, LogLevel::CRITICAL),
+        E_ERROR => array(null, LogLevel::CRITICAL),
+        E_CORE_ERROR => array(null, LogLevel::CRITICAL),
+    );
 
     private $thrownErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
     private $scopedErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
     private $tracedErrors = 0x77FB; // E_ALL - E_STRICT - E_PARSE
     private $screamedErrors = 0x55; // E_ERROR + E_CORE_ERROR + E_COMPILE_ERROR + E_PARSE
     private $loggedErrors = 0;
-    private $traceReflector;
 
+    private $loggedTraces = array();
     private $isRecursive = 0;
     private $isRoot = false;
     private $exceptionHandler;
-    private $bootstrappingLogger;
 
     private static $reservedMemory;
-    private static $toStringException = null;
-    private static $silencedErrorCache = [];
-    private static $silencedErrorCount = 0;
+    private static $stackedErrors = array();
+    private static $stackedErrorLevels = array();
     private static $exitCode = 0;
 
+    /**
+     * Same init value as thrownErrors.
+     *
+     * @deprecated since version 2.6, to be removed in 3.0.
+     */
+    private $displayErrors = 0x1FFF;
+
     /**
      * Registers the error handler.
      *
-     * @param self|null $handler The handler to register
-     * @param bool      $replace Whether to replace or not any existing handler
+     * @param self|null|int $handler The handler to register, or @deprecated (since version 2.6, to be removed in 3.0) bit field of thrown levels
+     * @param bool          $replace Whether to replace or not any existing handler
      *
      * @return self The registered error handler
      */
-    public static function register(self $handler = null, $replace = true)
+    public static function register($handler = null, $replace = true)
     {
         if (null === self::$reservedMemory) {
             self::$reservedMemory = str_repeat('x', 10240);
             register_shutdown_function(__CLASS__.'::handleFatalError');
         }
 
-        if ($handlerIsNew = null === $handler) {
+        $levels = -1;
+
+        if ($handlerIsNew = !$handler instanceof self) {
+            // @deprecated polymorphism, to be removed in 3.0
+            if (null !== $handler) {
+                $levels = $replace ? $handler : 0;
+                $replace = true;
+            }
             $handler = new static();
         }
 
-        if (null === $prev = set_error_handler([$handler, 'handleError'])) {
+        if (null === $prev = set_error_handler(array($handler, 'handleError'))) {
             restore_error_handler();
             // Specifying the error types earlier would expose us to https://bugs.php.net/63206
-            set_error_handler([$handler, 'handleError'], $handler->thrownErrors | $handler->loggedErrors);
+            set_error_handler(array($handler, 'handleError'), $handler->thrownErrors | $handler->loggedErrors);
             $handler->isRoot = true;
         }
 
-        if ($handlerIsNew && \is_array($prev) && $prev[0] instanceof self) {
+        if ($handlerIsNew && is_array($prev) && $prev[0] instanceof self) {
             $handler = $prev[0];
             $replace = false;
         }
         if (!$replace && $prev) {
             restore_error_handler();
-            $handlerIsRegistered = \is_array($prev) && $handler === $prev[0];
+            $handlerIsRegistered = is_array($prev) && $handler === $prev[0];
         } else {
             $handlerIsRegistered = true;
         }
-        if (\is_array($prev = set_exception_handler([$handler, 'handleException'])) && $prev[0] instanceof self) {
+        if (is_array($prev = set_exception_handler(array($handler, 'handleException'))) && $prev[0] instanceof self) {
             restore_exception_handler();
             if (!$handlerIsRegistered) {
                 $handler = $prev[0];
             } elseif ($handler !== $prev[0] && $replace) {
-                set_exception_handler([$handler, 'handleException']);
+                set_exception_handler(array($handler, 'handleException'));
                 $p = $prev[0]->setExceptionHandler(null);
                 $handler->setExceptionHandler($p);
                 $prev[0]->setExceptionHandler($p);
@@ -158,43 +167,34 @@ class ErrorHandler
             $handler->setExceptionHandler($prev);
         }
 
-        $handler->throwAt(\E_ALL & $handler->thrownErrors, true);
+        $handler->throwAt($levels & $handler->thrownErrors, true);
 
         return $handler;
     }
 
-    public function __construct(BufferingLogger $bootstrappingLogger = null)
-    {
-        if ($bootstrappingLogger) {
-            $this->bootstrappingLogger = $bootstrappingLogger;
-            $this->setDefaultLogger($bootstrappingLogger);
-        }
-        $this->traceReflector = new \ReflectionProperty(\Exception::class, 'trace');
-        $this->traceReflector->setAccessible(true);
-    }
-
     /**
      * Sets a logger to non assigned errors 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 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
      */
-    public function setDefaultLogger(LoggerInterface $logger, $levels = \E_ALL, $replace = false)
+    public function setDefaultLogger(LoggerInterface $logger, $levels = null, $replace = false)
     {
-        $loggers = [];
+        $loggers = array();
 
-        if (\is_array($levels)) {
+        if (is_array($levels)) {
             foreach ($levels as $type => $logLevel) {
-                if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] === $this->bootstrappingLogger) {
-                    $loggers[$type] = [$logger, $logLevel];
+                if (empty($this->loggers[$type][0]) || $replace) {
+                    $loggers[$type] = array($logger, $logLevel);
                 }
             }
         } else {
             if (null === $levels) {
-                $levels = \E_ALL;
+                $levels = E_ALL | E_STRICT;
             }
             foreach ($this->loggers as $type => $log) {
-                if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
+                if (($type & $levels) && (empty($log[0]) || $replace)) {
                     $log[0] = $logger;
                     $loggers[$type] = $log;
                 }
@@ -217,43 +217,27 @@ class ErrorHandler
     {
         $prevLogged = $this->loggedErrors;
         $prev = $this->loggers;
-        $flush = [];
 
         foreach ($loggers as $type => $log) {
             if (!isset($prev[$type])) {
                 throw new \InvalidArgumentException('Unknown error type: '.$type);
             }
-            if (!\is_array($log)) {
-                $log = [$log];
-            } elseif (!\array_key_exists(0, $log)) {
-                throw new \InvalidArgumentException('No logger provided.');
+            if (!is_array($log)) {
+                $log = array($log);
+            } elseif (!array_key_exists(0, $log)) {
+                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];
-
-            if ($this->bootstrappingLogger && $prev[$type][0] === $this->bootstrappingLogger) {
-                $flush[$type] = $type;
-            }
         }
         $this->reRegister($prevLogged | $this->thrownErrors);
 
-        if ($flush) {
-            foreach ($this->bootstrappingLogger->cleanLogs() as $log) {
-                $type = $log[2]['exception'] instanceof \ErrorException ? $log[2]['exception']->getSeverity() : \E_ERROR;
-                if (!isset($flush[$type])) {
-                    $this->bootstrappingLogger->log($log[0], $log[1], $log[2]);
-                } elseif ($this->loggers[$type][0]) {
-                    $this->loggers[$type][0]->log($this->loggers[$type][1], $log[1], $log[2]);
-                }
-            }
-        }
-
         return $prev;
     }
 
@@ -263,9 +247,14 @@ class ErrorHandler
      * @param callable $handler A handler that will be called on Exception
      *
      * @return callable|null The previous exception handler
+     *
+     * @throws \InvalidArgumentException
      */
-    public function setExceptionHandler(callable $handler = null)
+    public function setExceptionHandler($handler)
     {
+        if (null !== $handler && !is_callable($handler)) {
+            throw new \LogicException('The exception handler must be a valid PHP callable.');
+        }
         $prev = $this->exceptionHandler;
         $this->exceptionHandler = $handler;
 
@@ -283,12 +272,15 @@ class ErrorHandler
     public function throwAt($levels, $replace = false)
     {
         $prev = $this->thrownErrors;
-        $this->thrownErrors = ($levels | \E_RECOVERABLE_ERROR | \E_USER_ERROR) & ~\E_USER_DEPRECATED & ~\E_DEPRECATED;
+        $this->thrownErrors = ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
         if (!$replace) {
             $this->thrownErrors |= $prev;
         }
         $this->reRegister($prev | $this->loggedErrors);
 
+        // $this->displayErrors is @deprecated since version 2.6
+        $this->displayErrors = $this->thrownErrors;
+
         return $prev;
     }
 
@@ -352,18 +344,18 @@ class ErrorHandler
     /**
      * Re-registers as a PHP error handler if levels changed.
      */
-    private function reRegister(int $prev)
+    private function reRegister($prev)
     {
         if ($prev !== $this->thrownErrors | $this->loggedErrors) {
             $handler = set_error_handler('var_dump');
-            $handler = \is_array($handler) ? $handler[0] : null;
+            $handler = is_array($handler) ? $handler[0] : null;
             restore_error_handler();
             if ($handler === $this) {
                 restore_error_handler();
                 if ($this->isRoot) {
-                    set_error_handler([$this, 'handleError'], $this->thrownErrors | $this->loggedErrors);
+                    set_error_handler(array($this, 'handleError'), $this->thrownErrors | $this->loggedErrors);
                 } else {
-                    set_error_handler([$this, 'handleError']);
+                    set_error_handler(array($this, 'handleError'));
                 }
             }
         }
@@ -385,15 +377,9 @@ class ErrorHandler
      */
     public function handleError($type, $message, $file, $line)
     {
-        if (\PHP_VERSION_ID >= 70300 && \E_WARNING === $type && '"' === $message[0] && false !== strpos($message, '" targeting switch is equivalent to "break')) {
-            $type = \E_DEPRECATED;
-        }
-
-        // Level is the current error reporting level to manage silent error.
         $level = error_reporting();
         $silenced = 0 === ($level & $type);
-        // Strong errors are not authorized to be silenced.
-        $level |= \E_RECOVERABLE_ERROR | \E_USER_ERROR | \E_DEPRECATED | \E_USER_DEPRECATED;
+        $level |= E_RECOVERABLE_ERROR | E_USER_ERROR | E_DEPRECATED | E_USER_DEPRECATED;
         $log = $this->loggedErrors & $type;
         $throw = $this->thrownErrors & $type & $level;
         $type &= $level | $this->screamedErrors;
@@ -403,107 +389,95 @@ class ErrorHandler
         }
         $scope = $this->scopedErrors & $type;
 
-        if (false !== strpos($message, "@anonymous\0")) {
-            $logMessage = $this->levels[$type].': '.(new FlattenException())->setMessage($message)->getMessage();
+        if (4 < $numArgs = func_num_args()) {
+            $context = $scope ? (func_get_arg(4) ?: array()) : array();
+            $backtrace = 5 < $numArgs ? func_get_arg(5) : null; // defined on HHVM
         } else {
-            $logMessage = $this->levels[$type].': '.$message;
+            $context = array();
+            $backtrace = null;
         }
 
-        if (null !== self::$toStringException) {
-            $errorAsException = self::$toStringException;
-            self::$toStringException = null;
-        } elseif (!$throw && !($type & $level)) {
-            if (!isset(self::$silencedErrorCache[$id = $file.':'.$line])) {
-                $lightTrace = $this->tracedErrors & $type ? $this->cleanTrace(debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 5), $type, $file, $line, false) : [];
-                $errorAsException = new SilencedErrorContext($type, $file, $line, isset($lightTrace[1]) ? [$lightTrace[0]] : $lightTrace);
-            } elseif (isset(self::$silencedErrorCache[$id][$message])) {
-                $lightTrace = null;
-                $errorAsException = self::$silencedErrorCache[$id][$message];
-                ++$errorAsException->count;
-            } else {
-                $lightTrace = [];
-                $errorAsException = null;
-            }
+        if (isset($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 (100 < ++self::$silencedErrorCount) {
-                self::$silencedErrorCache = $lightTrace = [];
-                self::$silencedErrorCount = 1;
-            }
-            if ($errorAsException) {
-                self::$silencedErrorCache[$id][$message] = $errorAsException;
-            }
-            if (null === $lightTrace) {
-                return true;
-            }
-        } else {
-            $errorAsException = new \ErrorException($logMessage, 0, $type, $file, $line);
+        if (null !== $backtrace && $type & E_ERROR) {
+            // E_ERROR fatal errors are triggered on HHVM when
+            // hhvm.error_handling.call_user_handler_on_fatals=1
+            // which is the way to get their backtrace.
+            $this->handleFatalError(compact('type', 'message', 'file', 'line', 'backtrace'));
 
-            if ($throw || $this->tracedErrors & $type) {
-                $backtrace = $errorAsException->getTrace();
-                $lightTrace = $this->cleanTrace($backtrace, $type, $file, $line, $throw);
-                $this->traceReflector->setValue($errorAsException, $lightTrace);
-            } else {
-                $this->traceReflector->setValue($errorAsException, []);
-                $backtrace = [];
-            }
+            return true;
         }
 
         if ($throw) {
-            if (\PHP_VERSION_ID < 70400 && \E_USER_ERROR & $type) {
-                for ($i = 1; isset($backtrace[$i]); ++$i) {
-                    if (isset($backtrace[$i]['function'], $backtrace[$i]['type'], $backtrace[$i - 1]['function'])
-                        && '__toString' === $backtrace[$i]['function']
-                        && '->' === $backtrace[$i]['type']
-                        && !isset($backtrace[$i - 1]['class'])
-                        && ('trigger_error' === $backtrace[$i - 1]['function'] || 'user_error' === $backtrace[$i - 1]['function'])
-                    ) {
-                        // Here, we know trigger_error() has been called from __toString().
-                        // PHP triggers a fatal error when throwing from __toString().
-                        // A small convention allows working around the limitation:
-                        // given a caught $e exception in __toString(), quitting the method with
-                        // `return trigger_error($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;
-
-                                return true;
-                            }
-                        }
-
-                        // Display the original error message instead of the default one.
-                        $this->handleException($errorAsException);
-
-                        // Stop the process by giving back the error to the native handler.
-                        return false;
-                    }
-                }
+            if ($scope && class_exists('Symfony\Component\Debug\Exception\ContextErrorException')) {
+                // Checking for class existence is a work around for https://bugs.php.net/42098
+                $throw = new ContextErrorException($this->levels[$type].': '.$message, 0, $type, $file, $line, $context);
+            } else {
+                $throw = new \ErrorException($this->levels[$type].': '.$message, 0, $type, $file, $line);
             }
 
-            throw $errorAsException;
+            if (\PHP_VERSION_ID <= 50407 && (\PHP_VERSION_ID >= 50400 || \PHP_VERSION_ID <= 50317)) {
+                // Exceptions thrown from error handlers are sometimes not caught by the exception
+                // handler and shutdown handlers are bypassed before 5.4.8/5.3.18.
+                // We temporarily re-enable display_errors to prevent any blank page related to this bug.
+
+                $throw->errorHandlerCanary = new ErrorHandlerCanary();
+            }
+
+            throw $throw;
+        }
+
+        // For duplicated errors, log the trace only once
+        $e = md5("{$type}/{$line}/{$file}\x00{$message}", true);
+        $trace = true;
+
+        if (!($this->tracedErrors & $type) || isset($this->loggedTraces[$e])) {
+            $trace = false;
+        } else {
+            $this->loggedTraces[$e] = 1;
+        }
+
+        $e = compact('type', 'file', 'line', 'level');
+
+        if ($type & $level) {
+            if ($scope) {
+                $e['scope_vars'] = $context;
+                if ($trace) {
+                    $e['stack'] = $backtrace ?: debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT);
+                }
+            } elseif ($trace) {
+                if (null === $backtrace) {
+                    $e['stack'] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+                } else {
+                    foreach ($backtrace as &$frame) {
+                        unset($frame['args'], $frame);
+                    }
+                    $e['stack'] = $backtrace;
+                }
+            }
         }
 
         if ($this->isRecursive) {
             $log = 0;
+        } elseif (self::$stackedErrorLevels) {
+            self::$stackedErrors[] = array($this->loggers[$type][0], ($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG, $message, $e);
         } else {
-            if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
-                $currentErrorHandler = set_error_handler('var_dump');
-                restore_error_handler();
-            }
-
             try {
                 $this->isRecursive = true;
-                $level = ($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG;
-                $this->loggers[$type][0]->log($level, $logMessage, $errorAsException ? ['exception' => $errorAsException] : []);
-            } finally {
+                $this->loggers[$type][0]->log(($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG, $message, $e);
+                $this->isRecursive = false;
+            } catch (\Exception $e) {
                 $this->isRecursive = false;
 
-                if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
-                    set_error_handler($currentErrorHandler);
-                }
+                throw $e;
+            } catch (\Throwable $e) {
+                $this->isRecursive = false;
+
+                throw $e;
             }
         }
 
@@ -526,33 +500,41 @@ class ErrorHandler
         if (!$exception instanceof \Exception) {
             $exception = new FatalThrowableError($exception);
         }
-        $type = $exception instanceof FatalErrorException ? $exception->getSeverity() : \E_ERROR;
+        $type = $exception instanceof FatalErrorException ? $exception->getSeverity() : E_ERROR;
         $handlerException = null;
 
         if (($this->loggedErrors & $type) || $exception instanceof FatalThrowableError) {
-            if (false !== strpos($message = $exception->getMessage(), "@anonymous\0")) {
-                $message = (new FlattenException())->setMessage($message)->getMessage();
-            }
+            $e = array(
+                'type' => $type,
+                'file' => $exception->getFile(),
+                'line' => $exception->getLine(),
+                'level' => error_reporting(),
+                'stack' => $exception->getTrace(),
+            );
             if ($exception instanceof FatalErrorException) {
                 if ($exception instanceof FatalThrowableError) {
-                    $error = [
+                    $error = array(
                         'type' => $type,
-                        'message' => $message,
-                        'file' => $exception->getFile(),
-                        'line' => $exception->getLine(),
-                    ];
+                        'message' => $message = $exception->getMessage(),
+                        'file' => $e['file'],
+                        'line' => $e['line'],
+                    );
                 } else {
-                    $message = 'Fatal '.$message;
+                    $message = 'Fatal '.$exception->getMessage();
                 }
             } elseif ($exception instanceof \ErrorException) {
-                $message = 'Uncaught '.$message;
+                $message = 'Uncaught '.$exception->getMessage();
+                if ($exception instanceof ContextErrorException) {
+                    $e['context'] = $exception->getContext();
+                }
             } else {
-                $message = 'Uncaught Exception: '.$message;
+                $message = 'Uncaught Exception: '.$exception->getMessage();
             }
         }
         if ($this->loggedErrors & $type) {
             try {
-                $this->loggers[$type][0]->log($this->loggers[$type][1], $message, ['exception' => $exception]);
+                $this->loggers[$type][0]->log($this->loggers[$type][1], $message, $e);
+            } catch (\Exception $handlerException) {
             } catch (\Throwable $handlerException) {
             }
         }
@@ -568,11 +550,10 @@ class ErrorHandler
         $this->exceptionHandler = null;
         try {
             if (null !== $exceptionHandler) {
-                $exceptionHandler($exception);
-
-                return;
+                return \call_user_func($exceptionHandler, $exception);
             }
             $handlerException = $handlerException ?: $exception;
+        } catch (\Exception $handlerException) {
         } catch (\Throwable $handlerException) {
         }
         if ($exception === $handlerException) {
@@ -596,11 +577,11 @@ class ErrorHandler
         }
 
         $handler = self::$reservedMemory = null;
-        $handlers = [];
+        $handlers = array();
         $previousHandler = null;
         $sameHandlerLimit = 10;
 
-        while (!\is_array($handler) || !$handler[0] instanceof self) {
+        while (!is_array($handler) || !$handler[0] instanceof self) {
             $handler = set_exception_handler('var_dump');
             restore_exception_handler();
 
@@ -627,28 +608,36 @@ class ErrorHandler
             $handler[0]->setExceptionHandler($h);
         }
         $handler = $handler[0];
-        $handlers = [];
+        $handlers = array();
 
         if ($exit = null === $error) {
             $error = error_get_last();
         }
 
-        if ($error && $error['type'] &= \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR) {
+        try {
+            while (self::$stackedErrorLevels) {
+                static::unstackErrors();
+            }
+        } catch (\Exception $exception) {
+            // Handled below
+        } catch (\Throwable $exception) {
+            // Handled below
+        }
+
+        if ($error && $error['type'] &= E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR) {
             // Let's not throw anymore but keep logging
             $handler->throwAt(0, true);
-            $trace = $error['backtrace'] ?? null;
+            $trace = isset($error['backtrace']) ? $error['backtrace'] : null;
 
             if (0 === strpos($error['message'], 'Allowed memory') || 0 === strpos($error['message'], 'Out of memory')) {
                 $exception = new OutOfMemoryException($handler->levels[$error['type']].': '.$error['message'], 0, $error['type'], $error['file'], $error['line'], 2, false, $trace);
             } else {
                 $exception = new FatalErrorException($handler->levels[$error['type']].': '.$error['message'], 0, $error['type'], $error['file'], $error['line'], 2, true, $trace);
             }
-        } else {
-            $exception = null;
         }
 
         try {
-            if (null !== $exception) {
+            if (isset($exception)) {
                 self::$exitCode = 255;
                 $handler->handleException($exception, $error);
             }
@@ -662,6 +651,47 @@ class ErrorHandler
         }
     }
 
+    /**
+     * Configures the error handler for delayed handling.
+     * Ensures also that non-catchable fatal errors are never silenced.
+     *
+     * As shown by http://bugs.php.net/42098 and http://bugs.php.net/60724
+     * PHP has a compile stage where it behaves unusually. To workaround it,
+     * we plug an error handler that only stacks errors for later.
+     *
+     * The most important feature of this is to prevent
+     * autoloading until unstackErrors() is called.
+     */
+    public static function stackErrors()
+    {
+        self::$stackedErrorLevels[] = error_reporting(error_reporting() | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
+    }
+
+    /**
+     * Unstacks stacked errors and forwards to the logger.
+     */
+    public static function unstackErrors()
+    {
+        $level = array_pop(self::$stackedErrorLevels);
+
+        if (null !== $level) {
+            $e = error_reporting($level);
+            if ($e !== ($level | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR)) {
+                // If the user changed the error level, do not overwrite it
+                error_reporting($e);
+            }
+        }
+
+        if (empty(self::$stackedErrorLevels)) {
+            $errors = self::$stackedErrors;
+            self::$stackedErrors = array();
+
+            foreach ($errors as $e) {
+                $e[0]->log($e[1], $e[2], $e[3]);
+            }
+        }
+    }
+
     /**
      * Gets the fatal error handlers.
      *
@@ -671,39 +701,124 @@ class ErrorHandler
      */
     protected function getFatalErrorHandlers()
     {
-        return [
+        return array(
             new UndefinedFunctionFatalErrorHandler(),
             new UndefinedMethodFatalErrorHandler(),
             new ClassNotFoundFatalErrorHandler(),
-        ];
+        );
     }
 
     /**
-     * Cleans the trace by removing function arguments and the frames added by the error handler and DebugClassLoader.
+     * Sets the level at which the conversion to Exception is done.
+     *
+     * @param int|null $level The level (null to use the error_reporting() value and 0 to disable)
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use throwAt() instead.
      */
-    private function cleanTrace(array $backtrace, int $type, string $file, int $line, bool $throw): array
+    public function setLevel($level)
     {
-        $lightTrace = $backtrace;
+        @trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.6 and will be removed in 3.0. Use the throwAt() method instead.', E_USER_DEPRECATED);
 
-        for ($i = 0; isset($backtrace[$i]); ++$i) {
-            if (isset($backtrace[$i]['file'], $backtrace[$i]['line']) && $backtrace[$i]['line'] === $line && $backtrace[$i]['file'] === $file) {
-                $lightTrace = \array_slice($lightTrace, 1 + $i);
-                break;
-            }
-        }
-        if (class_exists(DebugClassLoader::class, false)) {
-            for ($i = \count($lightTrace) - 2; 0 < $i; --$i) {
-                if (DebugClassLoader::class === ($lightTrace[$i]['class'] ?? null)) {
-                    array_splice($lightTrace, --$i, 2);
-                }
-            }
-        }
-        if (!($throw || $this->scopedErrors & $type)) {
-            for ($i = 0; isset($lightTrace[$i]); ++$i) {
-                unset($lightTrace[$i]['args'], $lightTrace[$i]['object']);
-            }
-        }
+        $level = null === $level ? error_reporting() : $level;
+        $this->throwAt($level, true);
+    }
 
-        return $lightTrace;
+    /**
+     * Sets the display_errors flag value.
+     *
+     * @param int $displayErrors The display_errors flag value
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use throwAt() instead.
+     */
+    public function setDisplayErrors($displayErrors)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.6 and will be removed in 3.0. Use the throwAt() method instead.', E_USER_DEPRECATED);
+
+        if ($displayErrors) {
+            $this->throwAt($this->displayErrors, true);
+        } else {
+            $displayErrors = $this->displayErrors;
+            $this->throwAt(0, true);
+            $this->displayErrors = $displayErrors;
+        }
+    }
+
+    /**
+     * Sets a logger for the given channel.
+     *
+     * @param LoggerInterface $logger  A logger interface
+     * @param string          $channel The channel associated with the logger (deprecation, emergency or scream)
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use setLoggers() or setDefaultLogger() instead.
+     */
+    public static function setLogger(LoggerInterface $logger, $channel = 'deprecation')
+    {
+        @trigger_error('The '.__METHOD__.' static method is deprecated since Symfony 2.6 and will be removed in 3.0. Use the setLoggers() or setDefaultLogger() methods instead.', E_USER_DEPRECATED);
+
+        $handler = set_error_handler('var_dump');
+        $handler = is_array($handler) ? $handler[0] : null;
+        restore_error_handler();
+        if (!$handler instanceof self) {
+            return;
+        }
+        if ('deprecation' === $channel) {
+            $handler->setDefaultLogger($logger, E_DEPRECATED | E_USER_DEPRECATED, true);
+            $handler->screamAt(E_DEPRECATED | E_USER_DEPRECATED);
+        } elseif ('scream' === $channel) {
+            $handler->setDefaultLogger($logger, E_ALL | E_STRICT, false);
+            $handler->screamAt(E_ALL | E_STRICT);
+        } elseif ('emergency' === $channel) {
+            $handler->setDefaultLogger($logger, E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR, true);
+            $handler->screamAt(E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
+        }
+    }
+
+    /**
+     * @deprecated since version 2.6, to be removed in 3.0. Use handleError() instead.
+     */
+    public function handle($level, $message, $file = 'unknown', $line = 0, $context = array())
+    {
+        $this->handleError(E_USER_DEPRECATED, 'The '.__METHOD__.' method is deprecated since Symfony 2.6 and will be removed in 3.0. Use the handleError() method instead.', __FILE__, __LINE__, array());
+
+        return $this->handleError($level, $message, $file, $line, (array) $context);
+    }
+
+    /**
+     * Handles PHP fatal errors.
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use handleFatalError() instead.
+     */
+    public function handleFatal()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.6 and will be removed in 3.0. Use the handleFatalError() method instead.', E_USER_DEPRECATED);
+
+        static::handleFatalError();
+    }
+}
+
+/**
+ * Private class used to work around https://bugs.php.net/54275.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+class ErrorHandlerCanary
+{
+    private static $displayErrors = null;
+
+    public function __construct()
+    {
+        if (null === self::$displayErrors) {
+            self::$displayErrors = ini_set('display_errors', 1);
+        }
+    }
+
+    public function __destruct()
+    {
+        if (null !== self::$displayErrors) {
+            ini_set('display_errors', self::$displayErrors);
+            self::$displayErrors = null;
+        }
     }
 }

Exception/ClassNotFoundException.php

@@ -11,18 +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
 {
-    public function __construct(string $message, \ErrorException $previous)
+    public function __construct($message, \ErrorException $previous)
     {
         parent::__construct(
             $message,
@@ -30,9 +26,6 @@ class ClassNotFoundException extends FatalErrorException
             $previous->getSeverity(),
             $previous->getFile(),
             $previous->getLine(),
-            null,
-            true,
-            null,
             $previous->getPrevious()
         );
         $this->setTrace($previous->getTrace());

Exception/ContextErrorException.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Exception;
+
+/**
+ * Error Exception with Variable Context.
+ *
+ * @author Christian Sciberras <uuf6429@gmail.com>
+ */
+class ContextErrorException extends \ErrorException
+{
+    private $context = array();
+
+    public function __construct($message, $code, $severity, $filename, $lineno, $context = array())
+    {
+        parent::__construct($message, $code, $severity, $filename, $lineno);
+        $this->context = $context;
+    }
+
+    /**
+     * @return array Array of variables that existed when the exception occurred
+     */
+    public function getContext()
+    {
+        return $this->context;
+    }
+}

Exception/DummyException.php

@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Exception;
+
+@trigger_error('The '.__NAMESPACE__.'\DummyException class is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ */
+class DummyException extends \ErrorException
+{
+}

Exception/FatalErrorException.php

@@ -9,22 +9,35 @@
  * file that was distributed with this source code.
  */
 
+namespace Symfony\Component\HttpKernel\Exception;
+
+/**
+ * Fatal Error Exception.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
+ */
+class FatalErrorException extends \ErrorException
+{
+}
+
 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);
+use Symfony\Component\HttpKernel\Exception\FatalErrorException as LegacyFatalErrorException;
 
 /**
  * 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
+class FatalErrorException extends LegacyFatalErrorException
 {
-    public function __construct(string $message, int $code, int $severity, string $filename, int $lineno, int $traceOffset = null, bool $traceArgs = true, array $trace = null, \Throwable $previous = null)
+    public function __construct($message, $code, $severity, $filename, $lineno, $traceOffset = null, $traceArgs = true, array $trace = null)
     {
-        parent::__construct($message, $code, $severity, $filename, $lineno, $previous);
+        parent::__construct($message, $code, $severity, $filename, $lineno);
 
         if (null !== $trace) {
             if (!$traceArgs) {
@@ -35,7 +48,8 @@ class FatalErrorException extends \ErrorException
 
             $this->setTrace($trace);
         } elseif (null !== $traceOffset) {
-            if (\function_exists('xdebug_get_function_stack') && $trace = @xdebug_get_function_stack()) {
+            if (function_exists('xdebug_get_function_stack')) {
+                $trace = xdebug_get_function_stack();
                 if (0 < $traceOffset) {
                     array_splice($trace, -$traceOffset);
                 }
@@ -63,8 +77,13 @@ class FatalErrorException extends \ErrorException
 
                 unset($frame);
                 $trace = array_reverse($trace);
+            } elseif (function_exists('symfony_debug_backtrace')) {
+                $trace = symfony_debug_backtrace();
+                if (0 < $traceOffset) {
+                    array_splice($trace, 0, $traceOffset);
+                }
             } else {
-                $trace = [];
+                $trace = array();
             }
 
             $this->setTrace($trace);
@@ -73,7 +92,7 @@ class FatalErrorException extends \ErrorException
 
     protected function setTrace($trace)
     {
-        $traceReflector = new \ReflectionProperty(\Exception::class, 'trace');
+        $traceReflector = new \ReflectionProperty('Exception', 'trace');
         $traceReflector->setAccessible(true);
         $traceReflector->setValue($this, $trace);
     }

Exception/FatalThrowableError.php

@@ -11,33 +11,28 @@
 
 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
 {
-    private $originalClassName;
-
     public function __construct(\Throwable $e)
     {
-        $this->originalClassName = \get_class($e);
-
         if ($e instanceof \ParseError) {
-            $severity = \E_PARSE;
+            $message = 'Parse error: '.$e->getMessage();
+            $severity = E_PARSE;
         } elseif ($e instanceof \TypeError) {
-            $severity = \E_RECOVERABLE_ERROR;
+            $message = 'Type error: '.$e->getMessage();
+            $severity = E_RECOVERABLE_ERROR;
         } else {
-            $severity = \E_ERROR;
+            $message = $e->getMessage();
+            $severity = E_ERROR;
         }
 
         \ErrorException::__construct(
-            $e->getMessage(),
+            $message,
             $e->getCode(),
             $severity,
             $e->getFile(),
@@ -47,9 +42,4 @@ class FatalThrowableError extends FatalErrorException
 
         $this->setTrace($e->getTrace());
     }
-
-    public function getOriginalClassName(): string
-    {
-        return $this->originalClassName;
-    }
 }

Exception/FlattenException.php

@@ -9,45 +9,71 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\Debug\Exception;
+namespace Symfony\Component\HttpKernel\Exception;
 
-use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
-use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
+use Symfony\Component\Debug\Exception\FlattenException as DebugFlattenException;
 
 /**
- * FlattenException wraps a PHP Error or Exception to be able to serialize it.
+ * FlattenException wraps a PHP Exception to be able to serialize it.
  *
  * 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.
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
  */
 class FlattenException
+{
+    private $handler;
+
+    public static function __callStatic($method, $args)
+    {
+        if (!method_exists('Symfony\Component\Debug\Exception\FlattenException', $method)) {
+            throw new \BadMethodCallException(sprintf('Call to undefined method %s::%s()', get_called_class(), $method));
+        }
+
+        return call_user_func_array(array('Symfony\Component\Debug\Exception\FlattenException', $method), $args);
+    }
+
+    public function __call($method, $args)
+    {
+        if (!isset($this->handler)) {
+            $this->handler = new DebugFlattenException();
+        }
+
+        if (!method_exists($this->handler, $method)) {
+            throw new \BadMethodCallException(sprintf('Call to undefined method %s::%s()', get_class($this), $method));
+        }
+
+        return call_user_func_array(array($this->handler, $method), $args);
+    }
+}
+
+namespace Symfony\Component\Debug\Exception;
+
+use Symfony\Component\HttpKernel\Exception\FlattenException as LegacyFlattenException;
+use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
+
+/**
+ * FlattenException wraps a PHP Exception to be able to serialize it.
+ *
+ * Basically, this class removes all objects from the trace.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FlattenException extends LegacyFlattenException
 {
     private $message;
     private $code;
     private $previous;
     private $trace;
-    private $traceAsString;
     private $class;
     private $statusCode;
     private $headers;
     private $file;
     private $line;
 
-    /**
-     * @return static
-     */
-    public static function create(\Exception $exception, $statusCode = null, array $headers = [])
-    {
-        return static::createFromThrowable($exception, $statusCode, $headers);
-    }
-
-    /**
-     * @return static
-     */
-    public static function createFromThrowable(\Throwable $exception, int $statusCode = null, array $headers = [])
+    public static function create(\Exception $exception, $statusCode = null, array $headers = array())
     {
         $e = new static();
         $e->setMessage($exception->getMessage());
@@ -56,8 +82,6 @@ class FlattenException
         if ($exception instanceof HttpExceptionInterface) {
             $statusCode = $exception->getStatusCode();
             $headers = array_merge($headers, $exception->getHeaders());
-        } elseif ($exception instanceof RequestExceptionInterface) {
-            $statusCode = 400;
         }
 
         if (null === $statusCode) {
@@ -66,15 +90,17 @@ class FlattenException
 
         $e->setStatusCode($statusCode);
         $e->setHeaders($headers);
-        $e->setTraceFromThrowable($exception);
-        $e->setClass($exception instanceof FatalThrowableError ? $exception->getOriginalClassName() : \get_class($exception));
+        $e->setTraceFromException($exception);
+        $e->setClass(get_class($exception));
         $e->setFile($exception->getFile());
         $e->setLine($exception->getLine());
 
         $previous = $exception->getPrevious();
 
-        if ($previous instanceof \Throwable) {
-            $e->setPrevious(static::createFromThrowable($previous));
+        if ($previous instanceof \Exception) {
+            $e->setPrevious(static::create($previous));
+        } elseif ($previous instanceof \Throwable) {
+            $e->setPrevious(static::create(new FatalThrowableError($previous)));
         }
 
         return $e;
@@ -82,13 +108,13 @@ class FlattenException
 
     public function toArray()
     {
-        $exceptions = [];
-        foreach (array_merge([$this], $this->getAllPrevious()) as $exception) {
-            $exceptions[] = [
+        $exceptions = array();
+        foreach (array_merge(array($this), $this->getAllPrevious()) as $exception) {
+            $exceptions[] = array(
                 'message' => $exception->getMessage(),
                 'class' => $exception->getClass(),
                 'trace' => $exception->getTrace(),
-            ];
+            );
         }
 
         return $exceptions;
@@ -99,14 +125,9 @@ class FlattenException
         return $this->statusCode;
     }
 
-    /**
-     * @return $this
-     */
     public function setStatusCode($code)
     {
         $this->statusCode = $code;
-
-        return $this;
     }
 
     public function getHeaders()
@@ -114,14 +135,9 @@ class FlattenException
         return $this->headers;
     }
 
-    /**
-     * @return $this
-     */
     public function setHeaders(array $headers)
     {
         $this->headers = $headers;
-
-        return $this;
     }
 
     public function getClass()
@@ -129,14 +145,9 @@ class FlattenException
         return $this->class;
     }
 
-    /**
-     * @return $this
-     */
     public function setClass($class)
     {
-        $this->class = false !== strpos($class, "@anonymous\0") ? (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous' : $class;
-
-        return $this;
+        $this->class = $class;
     }
 
     public function getFile()
@@ -144,14 +155,9 @@ class FlattenException
         return $this->file;
     }
 
-    /**
-     * @return $this
-     */
     public function setFile($file)
     {
         $this->file = $file;
-
-        return $this;
     }
 
     public function getLine()
@@ -159,14 +165,9 @@ class FlattenException
         return $this->line;
     }
 
-    /**
-     * @return $this
-     */
     public function setLine($line)
     {
         $this->line = $line;
-
-        return $this;
     }
 
     public function getMessage()
@@ -174,20 +175,9 @@ class FlattenException
         return $this->message;
     }
 
-    /**
-     * @return $this
-     */
     public function setMessage($message)
     {
-        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);
-        }
-
         $this->message = $message;
-
-        return $this;
     }
 
     public function getCode()
@@ -195,14 +185,9 @@ class FlattenException
         return $this->code;
     }
 
-    /**
-     * @return $this
-     */
     public function setCode($code)
     {
         $this->code = $code;
-
-        return $this;
     }
 
     public function getPrevious()
@@ -210,19 +195,14 @@ class FlattenException
         return $this->previous;
     }
 
-    /**
-     * @return $this
-     */
-    public function setPrevious(self $previous)
+    public function setPrevious(FlattenException $previous)
     {
         $this->previous = $previous;
-
-        return $this;
     }
 
     public function getAllPrevious()
     {
-        $exceptions = [];
+        $exceptions = array();
         $e = $this;
         while ($e = $e->getPrevious()) {
             $exceptions[] = $e;
@@ -236,30 +216,15 @@ class FlattenException
         return $this->trace;
     }
 
-    /**
-     * @deprecated since 4.1, use {@see setTraceFromThrowable()} instead.
-     */
     public function setTraceFromException(\Exception $exception)
     {
-        @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.1, use "setTraceFromThrowable()" instead.', __METHOD__), \E_USER_DEPRECATED);
-
-        $this->setTraceFromThrowable($exception);
+        $this->setTrace($exception->getTrace(), $exception->getFile(), $exception->getLine());
     }
 
-    public function setTraceFromThrowable(\Throwable $throwable)
-    {
-        $this->traceAsString = $throwable->getTraceAsString();
-
-        return $this->setTrace($throwable->getTrace(), $throwable->getFile(), $throwable->getLine());
-    }
-
-    /**
-     * @return $this
-     */
     public function setTrace($trace, $file, $line)
     {
-        $this->trace = [];
-        $this->trace[] = [
+        $this->trace = array();
+        $this->trace[] = array(
             'namespace' => '',
             'short_class' => '',
             'class' => '',
@@ -267,8 +232,8 @@ class FlattenException
             'function' => '',
             'file' => $file,
             'line' => $line,
-            'args' => [],
-        ];
+            'args' => array(),
+        );
         foreach ($trace as $entry) {
             $class = '';
             $namespace = '';
@@ -278,90 +243,55 @@ class FlattenException
                 $namespace = implode('\\', $parts);
             }
 
-            $this->trace[] = [
+            $this->trace[] = array(
                 'namespace' => $namespace,
                 'short_class' => $class,
-                'class' => $entry['class'] ?? '',
-                'type' => $entry['type'] ?? '',
-                'function' => $entry['function'] ?? null,
-                'file' => $entry['file'] ?? null,
-                'line' => $entry['line'] ?? null,
-                'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : [],
-            ];
+                'class' => isset($entry['class']) ? $entry['class'] : '',
+                'type' => isset($entry['type']) ? $entry['type'] : '',
+                'function' => isset($entry['function']) ? $entry['function'] : null,
+                'file' => isset($entry['file']) ? $entry['file'] : null,
+                'line' => isset($entry['line']) ? $entry['line'] : null,
+                'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : array(),
+            );
         }
-
-        return $this;
     }
 
-    private function flattenArgs(array $args, int $level = 0, int &$count = 0): array
+    private function flattenArgs($args, $level = 0, &$count = 0)
     {
-        $result = [];
+        $result = array();
         foreach ($args as $key => $value) {
             if (++$count > 1e4) {
-                return ['array', '*SKIPPED over 10000 entries*'];
+                return array('array', '*SKIPPED over 10000 entries*');
             }
             if ($value instanceof \__PHP_Incomplete_Class) {
                 // is_object() returns false on PHP<=7.1
-                $result[$key] = ['incomplete-object', $this->getClassNameFromIncomplete($value)];
-            } elseif (\is_object($value)) {
-                $result[$key] = ['object', \get_class($value)];
-            } elseif (\is_array($value)) {
+                $result[$key] = array('incomplete-object', $this->getClassNameFromIncomplete($value));
+            } elseif (is_object($value)) {
+                $result[$key] = array('object', get_class($value));
+            } elseif (is_array($value)) {
                 if ($level > 10) {
-                    $result[$key] = ['array', '*DEEP NESTED ARRAY*'];
+                    $result[$key] = array('array', '*DEEP NESTED ARRAY*');
                 } else {
-                    $result[$key] = ['array', $this->flattenArgs($value, $level + 1, $count)];
+                    $result[$key] = array('array', $this->flattenArgs($value, $level + 1, $count));
                 }
             } elseif (null === $value) {
-                $result[$key] = ['null', null];
-            } elseif (\is_bool($value)) {
-                $result[$key] = ['boolean', $value];
-            } elseif (\is_int($value)) {
-                $result[$key] = ['integer', $value];
-            } elseif (\is_float($value)) {
-                $result[$key] = ['float', $value];
-            } elseif (\is_resource($value)) {
-                $result[$key] = ['resource', get_resource_type($value)];
+                $result[$key] = array('null', null);
+            } elseif (is_bool($value)) {
+                $result[$key] = array('boolean', $value);
+            } elseif (is_resource($value)) {
+                $result[$key] = array('resource', get_resource_type($value));
             } else {
-                $result[$key] = ['string', (string) $value];
+                $result[$key] = array('string', (string) $value);
             }
         }
 
         return $result;
     }
 
-    private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value): string
+    private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
     {
         $array = new \ArrayObject($value);
 
         return $array['__PHP_Incomplete_Class_Name'];
     }
-
-    public function getTraceAsString()
-    {
-        return $this->traceAsString;
-    }
-
-    public function getAsString()
-    {
-        $message = '';
-        $next = false;
-
-        foreach (array_reverse(array_merge([$this], $this->getAllPrevious())) as $exception) {
-            if ($next) {
-                $message .= 'Next ';
-            } else {
-                $next = true;
-            }
-            $message .= $exception->getClass();
-
-            if ('' != $exception->getMessage()) {
-                $message .= ': '.$exception->getMessage();
-            }
-
-            $message .= ' in '.$exception->getFile().':'.$exception->getLine().
-                "\nStack trace:\n".$exception->getTraceAsString()."\n\n";
-        }
-
-        return rtrim($message);
-    }
 }

Exception/OutOfMemoryException.php

@@ -11,14 +11,10 @@
 
 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

@@ -1,71 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-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
-{
-    public $count = 1;
-
-    private $severity;
-    private $file;
-    private $line;
-    private $trace;
-
-    public function __construct(int $severity, string $file, int $line, array $trace = [], int $count = 1)
-    {
-        $this->severity = $severity;
-        $this->file = $file;
-        $this->line = $line;
-        $this->trace = $trace;
-        $this->count = $count;
-    }
-
-    public function getSeverity()
-    {
-        return $this->severity;
-    }
-
-    public function getFile()
-    {
-        return $this->file;
-    }
-
-    public function getLine()
-    {
-        return $this->line;
-    }
-
-    public function getTrace()
-    {
-        return $this->trace;
-    }
-
-    public function jsonSerialize()
-    {
-        return [
-            'severity' => $this->severity,
-            'file' => $this->file,
-            'line' => $this->line,
-            'trace' => $this->trace,
-            'count' => $this->count,
-        ];
-    }
-}

Exception/UndefinedFunctionException.php

@@ -11,18 +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
 {
-    public function __construct(string $message, \ErrorException $previous)
+    public function __construct($message, \ErrorException $previous)
     {
         parent::__construct(
             $message,
@@ -30,9 +26,6 @@ class UndefinedFunctionException extends FatalErrorException
             $previous->getSeverity(),
             $previous->getFile(),
             $previous->getLine(),
-            null,
-            true,
-            null,
             $previous->getPrevious()
         );
         $this->setTrace($previous->getTrace());

Exception/UndefinedMethodException.php

@@ -11,18 +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
 {
-    public function __construct(string $message, \ErrorException $previous)
+    public function __construct($message, \ErrorException $previous)
     {
         parent::__construct(
             $message,
@@ -30,9 +26,6 @@ class UndefinedMethodException extends FatalErrorException
             $previous->getSeverity(),
             $previous->getFile(),
             $previous->getLine(),
-            null,
-            true,
-            null,
             $previous->getPrevious()
         );
         $this->setTrace($previous->getTrace());

FatalErrorHandler/ClassNotFoundFatalErrorHandler.php

@@ -11,20 +11,17 @@
 
 namespace Symfony\Component\Debug\FatalErrorHandler;
 
-use Composer\Autoload\ClassLoader as ComposerClassLoader;
-use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
-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);
+use Symfony\Component\Debug\DebugClassLoader;
+use Composer\Autoload\ClassLoader as ComposerClassLoader;
+use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\UniversalClassLoader as SymfonyUniversalClassLoader;
 
 /**
  * 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
 {
@@ -33,34 +30,48 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
      */
     public function handleError(array $error, FatalErrorException $exception)
     {
-        if (!preg_match('/^(Class|Interface|Trait) [\'"]([^\'"]+)[\'"] not found$/', $error['message'], $matches)) {
-            return null;
-        }
-        $typeName = strtolower($matches[1]);
-        $fullyQualifiedClassName = $matches[2];
-
-        if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
-            $className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
-            $namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
-            $message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
-            $tail = ' for another namespace?';
-        } else {
-            $className = $fullyQualifiedClassName;
-            $message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
-            $tail = '?';
+        $messageLen = strlen($error['message']);
+        $notFoundSuffix = '\' not found';
+        $notFoundSuffixLen = strlen($notFoundSuffix);
+        if ($notFoundSuffixLen > $messageLen) {
+            return;
         }
 
-        if ($candidates = $this->getClassCandidates($className)) {
-            $tail = array_pop($candidates).'"?';
-            if ($candidates) {
-                $tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
-            } else {
-                $tail = ' for "'.$tail;
+        if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
+            return;
+        }
+
+        foreach (array('class', 'interface', 'trait') as $typeName) {
+            $prefix = ucfirst($typeName).' \'';
+            $prefixLen = strlen($prefix);
+            if (0 !== strpos($error['message'], $prefix)) {
+                continue;
             }
-        }
-        $message .= "\nDid you forget a \"use\" statement".$tail;
 
-        return new ClassNotFoundException($message, $exception);
+            $fullyQualifiedClassName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
+            if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
+                $className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
+                $namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
+                $message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
+                $tail = ' for another namespace?';
+            } else {
+                $className = $fullyQualifiedClassName;
+                $message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
+                $tail = '?';
+            }
+
+            if ($candidates = $this->getClassCandidates($className)) {
+                $tail = array_pop($candidates).'"?';
+                if ($candidates) {
+                    $tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
+                } else {
+                    $tail = ' for "'.$tail;
+                }
+            }
+            $message .= "\nDid you forget a \"use\" statement".$tail;
+
+            return new ClassNotFoundException($message, $exception);
+        }
     }
 
     /**
@@ -73,29 +84,34 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
      *
      * @return array An array of possible fully qualified class names
      */
-    private function getClassCandidates(string $class): array
+    private function getClassCandidates($class)
     {
-        if (!\is_array($functions = spl_autoload_functions())) {
-            return [];
+        if (!is_array($functions = spl_autoload_functions())) {
+            return array();
         }
 
         // find Symfony and Composer autoloaders
-        $classes = [];
+        $classes = array();
 
         foreach ($functions as $function) {
-            if (!\is_array($function)) {
+            if (!is_array($function)) {
                 continue;
             }
             // get class loaders wrapped by DebugClassLoader
             if ($function[0] instanceof DebugClassLoader) {
                 $function = $function[0]->getClassLoader();
 
-                if (!\is_array($function)) {
+                // @deprecated since version 2.5. Returning an object from DebugClassLoader::getClassLoader() is deprecated.
+                if (is_object($function)) {
+                    $function = array($function);
+                }
+
+                if (!is_array($function)) {
                     continue;
                 }
             }
 
-            if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader) {
+            if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader || $function[0] instanceof SymfonyUniversalClassLoader) {
                 foreach ($function[0]->getPrefixes() as $prefix => $paths) {
                     foreach ($paths as $path) {
                         $classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
@@ -114,13 +130,20 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
         return array_unique($classes);
     }
 
-    private function findClassInPath(string $path, string $class, string $prefix): array
+    /**
+     * @param string $path
+     * @param string $class
+     * @param string $prefix
+     *
+     * @return array
+     */
+    private function findClassInPath($path, $class, $prefix)
     {
-        if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.\dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
-            return [];
+        if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
+            return array();
         }
 
-        $classes = [];
+        $classes = array();
         $filename = $class.'.php';
         foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
             if ($filename == $file->getFileName() && $class = $this->convertFileToClass($path, $file->getPathName(), $prefix)) {
@@ -131,11 +154,18 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
         return $classes;
     }
 
-    private function convertFileToClass(string $path, string $file, string $prefix): ?string
+    /**
+     * @param string $path
+     * @param string $file
+     * @param string $prefix
+     *
+     * @return string|null
+     */
+    private function convertFileToClass($path, $file, $prefix)
     {
-        $candidates = [
+        $candidates = array(
             // namespaced class
-            $namespacedClass = str_replace([$path.\DIRECTORY_SEPARATOR, '.php', '/'], ['', '', '\\'], $file),
+            $namespacedClass = str_replace(array($path.DIRECTORY_SEPARATOR, '.php', '/'), array('', '', '\\'), $file),
             // namespaced class (with target dir)
             $prefix.$namespacedClass,
             // namespaced class (with target dir and separator)
@@ -146,7 +176,7 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
             str_replace('\\', '_', $prefix.$namespacedClass),
             // PEAR class (with target dir and separator)
             str_replace('\\', '_', $prefix.'\\'.$namespacedClass),
-        ];
+        );
 
         if ($prefix) {
             $candidates = array_filter($candidates, function ($candidate) use ($prefix) { return 0 === strpos($candidate, $prefix); });
@@ -161,23 +191,22 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
             }
         }
 
-        try {
-            require_once $file;
-        } catch (\Throwable $e) {
-            return null;
-        }
+        require_once $file;
 
         foreach ($candidates as $candidate) {
             if ($this->classExists($candidate)) {
                 return $candidate;
             }
         }
-
-        return null;
     }
 
-    private function classExists(string $class): bool
+    /**
+     * @param string $class
+     *
+     * @return bool
+     */
+    private function classExists($class)
     {
-        return class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
+        return class_exists($class, false) || interface_exists($class, false) || (function_exists('trait_exists') && trait_exists($class, false));
     }
 }

FatalErrorHandler/FatalErrorHandlerInterface.php

@@ -13,21 +13,18 @@ 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 array               $error     An array as returned by error_get_last()
+     * @param FatalErrorException $exception A FatalErrorException instance
      *
      * @return FatalErrorException|null A FatalErrorException instance if the class is able to convert the error, null otherwise
      */

FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php

@@ -11,17 +11,13 @@
 
 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);
+use Symfony\Component\Debug\Exception\FatalErrorException;
 
 /**
  * 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
 {
@@ -30,21 +26,21 @@ class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
      */
     public function handleError(array $error, FatalErrorException $exception)
     {
-        $messageLen = \strlen($error['message']);
+        $messageLen = strlen($error['message']);
         $notFoundSuffix = '()';
-        $notFoundSuffixLen = \strlen($notFoundSuffix);
+        $notFoundSuffixLen = strlen($notFoundSuffix);
         if ($notFoundSuffixLen > $messageLen) {
-            return null;
+            return;
         }
 
         if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
-            return null;
+            return;
         }
 
         $prefix = 'Call to undefined function ';
-        $prefixLen = \strlen($prefix);
+        $prefixLen = strlen($prefix);
         if (0 !== strpos($error['message'], $prefix)) {
-            return null;
+            return;
         }
 
         $fullyQualifiedFunctionName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
@@ -57,7 +53,7 @@ class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
             $message = sprintf('Attempted to call function "%s" from the global namespace.', $functionName);
         }
 
-        $candidates = [];
+        $candidates = array();
         foreach (get_defined_functions() as $type => $definedFunctionNames) {
             foreach ($definedFunctionNames as $definedFunctionName) {
                 if (false !== $namespaceSeparatorIndex = strrpos($definedFunctionName, '\\')) {

FatalErrorHandler/UndefinedMethodFatalErrorHandler.php

@@ -14,14 +14,10 @@ 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
 {
@@ -32,7 +28,7 @@ class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
     {
         preg_match('/^Call to undefined method (.*)::(.*)\(\)$/', $error['message'], $matches);
         if (!$matches) {
-            return null;
+            return;
         }
 
         $className = $matches[1];
@@ -40,15 +36,15 @@ class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
 
         $message = sprintf('Attempted to call an undefined method named "%s" of class "%s".', $methodName, $className);
 
-        if ('' === $methodName || !class_exists($className) || null === $methods = get_class_methods($className)) {
+        if (!class_exists($className) || null === $methods = get_class_methods($className)) {
             // failed to get the class or its methods on which an unknown method was called (for example on an anonymous class)
             return new UndefinedMethodException($message, $exception);
         }
 
-        $candidates = [];
+        $candidates = array();
         foreach ($methods as $definedMethodName) {
             $lev = levenshtein($methodName, $definedMethodName);
-            if ($lev <= \strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
+            if ($lev <= strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
                 $candidates[] = $definedMethodName;
             }
         }

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2021 Fabien Potencier
+Copyright (c) 2004-2018 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

@@ -1,30 +1,13 @@
 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 require symfony/debug
-```
-
-```php
-use Symfony\Component\Debug\Debug;
-
-Debug::enable();
-```
-
 Resources
 ---------
 
- * [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)
+  * [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)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

Resources/ext/README.md

@@ -0,0 +1,134 @@
+Symfony Debug Extension for PHP 5
+=================================
+
+This extension publishes several functions to help building powerful debugging tools.
+It is compatible with PHP 5.3, 5.4, 5.5 and 5.6; with ZTS and non-ZTS modes.
+It is not required thus not provided for PHP 7.
+
+symfony_zval_info()
+-------------------
+
+- exposes zval_hash/refcounts, allowing e.g. efficient exploration of arbitrary structures in PHP,
+- does work with references, preventing memory copying.
+
+Its behavior is about the same as:
+
+```php
+<?php
+
+function symfony_zval_info($key, $array, $options = 0)
+{
+
+    // $options is currently not used, but could be in future version.
+
+    if (!array_key_exists($key, $array)) {
+        return null;
+    }
+
+    $info = array(
+        'type' => gettype($array[$key]),
+        'zval_hash' => /* hashed memory address of $array[$key] */,
+        'zval_refcount' => /* internal zval refcount of $array[$key] */,
+        'zval_isref' => /* is_ref status of $array[$key] */,
+    );
+
+    switch ($info['type']) {
+        case 'object':
+            $info += array(
+                'object_class' => get_class($array[$key]),
+                'object_refcount' => /* internal object refcount of $array[$key] */,
+                'object_hash' => spl_object_hash($array[$key]),
+                'object_handle' => /* internal object handle $array[$key] */,
+            );
+            break;
+
+        case 'resource':
+            $info += array(
+                'resource_handle' => (int) $array[$key],
+                'resource_type' => get_resource_type($array[$key]),
+                'resource_refcount' => /* internal resource refcount of $array[$key] */,
+            );
+            break;
+
+        case 'array':
+            $info += array(
+                'array_count' => count($array[$key]),
+            );
+            break;
+
+        case 'string':
+            $info += array(
+                'strlen' => strlen($array[$key]),
+            );
+            break;
+    }
+
+    return $info;
+}
+```
+
+symfony_debug_backtrace()
+-------------------------
+
+This function works like debug_backtrace(), except that it can fetch the full backtrace in case of fatal errors:
+
+```php
+function foo() { fatal(); }
+function bar() { foo(); }
+
+function sd() { var_dump(symfony_debug_backtrace()); }
+
+register_shutdown_function('sd');
+
+bar();
+
+/* Will output
+Fatal error: Call to undefined function fatal() in foo.php on line 42
+array(3) {
+  [0]=>
+  array(2) {
+    ["function"]=>
+    string(2) "sd"
+    ["args"]=>
+    array(0) {
+    }
+  }
+  [1]=>
+  array(4) {
+    ["file"]=>
+    string(7) "foo.php"
+    ["line"]=>
+    int(1)
+    ["function"]=>
+    string(3) "foo"
+    ["args"]=>
+    array(0) {
+    }
+  }
+  [2]=>
+  array(4) {
+    ["file"]=>
+    string(102) "foo.php"
+    ["line"]=>
+    int(2)
+    ["function"]=>
+    string(3) "bar"
+    ["args"]=>
+    array(0) {
+    }
+  }
+}
+*/
+```
+
+Usage
+-----
+
+To enable the extension from source, run:
+
+```
+    phpize
+    ./configure
+    make
+    sudo make install
+```

Resources/ext/config.m4

@@ -0,0 +1,63 @@
+dnl $Id$
+dnl config.m4 for extension symfony_debug
+
+dnl Comments in this file start with the string 'dnl'.
+dnl Remove where necessary. This file will not work
+dnl without editing.
+
+dnl If your extension references something external, use with:
+
+dnl PHP_ARG_WITH(symfony_debug, for symfony_debug support,
+dnl Make sure that the comment is aligned:
+dnl [  --with-symfony_debug             Include symfony_debug support])
+
+dnl Otherwise use enable:
+
+PHP_ARG_ENABLE(symfony_debug, whether to enable symfony_debug support,
+dnl Make sure that the comment is aligned:
+[  --enable-symfony_debug           Enable symfony_debug support])
+
+if test "$PHP_SYMFONY_DEBUG" != "no"; then
+  dnl Write more examples of tests here...
+
+  dnl # --with-symfony_debug -> check with-path
+  dnl SEARCH_PATH="/usr/local /usr"     # you might want to change this
+  dnl SEARCH_FOR="/include/symfony_debug.h"  # you most likely want to change this
+  dnl if test -r $PHP_SYMFONY_DEBUG/$SEARCH_FOR; then # path given as parameter
+  dnl   SYMFONY_DEBUG_DIR=$PHP_SYMFONY_DEBUG
+  dnl else # search default path list
+  dnl   AC_MSG_CHECKING([for symfony_debug files in default path])
+  dnl   for i in $SEARCH_PATH ; do
+  dnl     if test -r $i/$SEARCH_FOR; then
+  dnl       SYMFONY_DEBUG_DIR=$i
+  dnl       AC_MSG_RESULT(found in $i)
+  dnl     fi
+  dnl   done
+  dnl fi
+  dnl
+  dnl if test -z "$SYMFONY_DEBUG_DIR"; then
+  dnl   AC_MSG_RESULT([not found])
+  dnl   AC_MSG_ERROR([Please reinstall the symfony_debug distribution])
+  dnl fi
+
+  dnl # --with-symfony_debug -> add include path
+  dnl PHP_ADD_INCLUDE($SYMFONY_DEBUG_DIR/include)
+
+  dnl # --with-symfony_debug -> check for lib and symbol presence
+  dnl LIBNAME=symfony_debug # you may want to change this
+  dnl LIBSYMBOL=symfony_debug # you most likely want to change this 
+
+  dnl PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,
+  dnl [
+  dnl   PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $SYMFONY_DEBUG_DIR/lib, SYMFONY_DEBUG_SHARED_LIBADD)
+  dnl   AC_DEFINE(HAVE_SYMFONY_DEBUGLIB,1,[ ])
+  dnl ],[
+  dnl   AC_MSG_ERROR([wrong symfony_debug lib version or lib not found])
+  dnl ],[
+  dnl   -L$SYMFONY_DEBUG_DIR/lib -lm
+  dnl ])
+  dnl
+  dnl PHP_SUBST(SYMFONY_DEBUG_SHARED_LIBADD)
+
+  PHP_NEW_EXTENSION(symfony_debug, symfony_debug.c, $ext_shared)
+fi

Resources/ext/config.w32

@@ -0,0 +1,13 @@
+// $Id$
+// vim:ft=javascript
+
+// If your extension references something external, use ARG_WITH
+// ARG_WITH("symfony_debug", "for symfony_debug support", "no");
+
+// Otherwise, use ARG_ENABLE
+// ARG_ENABLE("symfony_debug", "enable symfony_debug support", "no");
+
+if (PHP_SYMFONY_DEBUG != "no") {
+	EXTENSION("symfony_debug", "symfony_debug.c");
+}
+

Resources/ext/php_symfony_debug.h

@@ -0,0 +1,60 @@
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+#ifndef PHP_SYMFONY_DEBUG_H
+#define PHP_SYMFONY_DEBUG_H
+
+extern zend_module_entry symfony_debug_module_entry;
+#define phpext_symfony_debug_ptr &symfony_debug_module_entry
+
+#define PHP_SYMFONY_DEBUG_VERSION "2.7"
+
+#ifdef PHP_WIN32
+#	define PHP_SYMFONY_DEBUG_API __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+#	define PHP_SYMFONY_DEBUG_API __attribute__ ((visibility("default")))
+#else
+#	define PHP_SYMFONY_DEBUG_API
+#endif
+
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+
+ZEND_BEGIN_MODULE_GLOBALS(symfony_debug)
+	intptr_t req_rand_init;
+	void (*old_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
+	zval *debug_bt;
+ZEND_END_MODULE_GLOBALS(symfony_debug)
+
+PHP_MINIT_FUNCTION(symfony_debug);
+PHP_MSHUTDOWN_FUNCTION(symfony_debug);
+PHP_RINIT_FUNCTION(symfony_debug);
+PHP_RSHUTDOWN_FUNCTION(symfony_debug);
+PHP_MINFO_FUNCTION(symfony_debug);
+PHP_GINIT_FUNCTION(symfony_debug);
+PHP_GSHUTDOWN_FUNCTION(symfony_debug);
+
+PHP_FUNCTION(symfony_zval_info);
+PHP_FUNCTION(symfony_debug_backtrace);
+
+static char *_symfony_debug_memory_address_hash(void * TSRMLS_DC);
+static const char *_symfony_debug_zval_type(zval *);
+static const char* _symfony_debug_get_resource_type(long TSRMLS_DC);
+static int _symfony_debug_get_resource_refcount(long TSRMLS_DC);
+
+void symfony_debug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
+
+#ifdef ZTS
+#define SYMFONY_DEBUG_G(v) TSRMG(symfony_debug_globals_id, zend_symfony_debug_globals *, v)
+#else
+#define SYMFONY_DEBUG_G(v) (symfony_debug_globals.v)
+#endif
+
+#endif	/* PHP_SYMFONY_DEBUG_H */

Resources/ext/symfony_debug.c

@@ -0,0 +1,283 @@
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+#include "php_ini.h"
+#include "ext/standard/info.h"
+#include "php_symfony_debug.h"
+#include "ext/standard/php_rand.h"
+#include "ext/standard/php_lcg.h"
+#include "ext/spl/php_spl.h"
+#include "Zend/zend_gc.h"
+#include "Zend/zend_builtin_functions.h"
+#include "Zend/zend_extensions.h" /* for ZEND_EXTENSION_API_NO */
+#include "ext/standard/php_array.h"
+#include "Zend/zend_interfaces.h"
+#include "SAPI.h"
+
+#define IS_PHP_53 ZEND_EXTENSION_API_NO == 220090626
+
+ZEND_DECLARE_MODULE_GLOBALS(symfony_debug)
+
+ZEND_BEGIN_ARG_INFO_EX(symfony_zval_arginfo, 0, 0, 2)
+	ZEND_ARG_INFO(0, key)
+	ZEND_ARG_ARRAY_INFO(0, array, 0)
+	ZEND_ARG_INFO(0, options)
+ZEND_END_ARG_INFO()
+
+const zend_function_entry symfony_debug_functions[] = {
+	PHP_FE(symfony_zval_info,	symfony_zval_arginfo)
+	PHP_FE(symfony_debug_backtrace, NULL)
+	PHP_FE_END
+};
+
+PHP_FUNCTION(symfony_debug_backtrace)
+{
+	if (zend_parse_parameters_none() == FAILURE) {
+		return;
+	}
+#if IS_PHP_53
+	zend_fetch_debug_backtrace(return_value, 1, 0 TSRMLS_CC);
+#else
+	zend_fetch_debug_backtrace(return_value, 1, 0, 0 TSRMLS_CC);
+#endif
+
+	if (!SYMFONY_DEBUG_G(debug_bt)) {
+		return;
+	}
+
+	php_array_merge(Z_ARRVAL_P(return_value), Z_ARRVAL_P(SYMFONY_DEBUG_G(debug_bt)), 0 TSRMLS_CC);
+}
+
+PHP_FUNCTION(symfony_zval_info)
+{
+	zval *key = NULL, *arg = NULL;
+	zval **data = NULL;
+	HashTable *array = NULL;
+	long options = 0;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zh|l", &key, &array, &options) == FAILURE) {
+		return;
+	}
+
+	switch (Z_TYPE_P(key)) {
+		case IS_STRING:
+			if (zend_symtable_find(array, Z_STRVAL_P(key), Z_STRLEN_P(key) + 1, (void **)&data) == FAILURE) {
+				return;
+			}
+		break;
+		case IS_LONG:
+			if (zend_hash_index_find(array, Z_LVAL_P(key), (void **)&data)) {
+				return;
+			}
+		break;
+	}
+
+	arg = *data;
+
+	array_init(return_value);
+
+	add_assoc_string(return_value, "type", (char *)_symfony_debug_zval_type(arg), 1);
+	add_assoc_stringl(return_value, "zval_hash", _symfony_debug_memory_address_hash((void *)arg TSRMLS_CC), 16, 0);
+	add_assoc_long(return_value, "zval_refcount", Z_REFCOUNT_P(arg));
+	add_assoc_bool(return_value, "zval_isref", (zend_bool)Z_ISREF_P(arg));
+
+	if (Z_TYPE_P(arg) == IS_OBJECT) {
+		char hash[33] = {0};
+
+		php_spl_object_hash(arg, (char *)hash TSRMLS_CC);
+		add_assoc_stringl(return_value, "object_class", (char *)Z_OBJCE_P(arg)->name, Z_OBJCE_P(arg)->name_length, 1);
+		add_assoc_long(return_value, "object_refcount", EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(arg)].bucket.obj.refcount);
+		add_assoc_string(return_value, "object_hash", hash, 1);
+		add_assoc_long(return_value, "object_handle", Z_OBJ_HANDLE_P(arg));
+	} else if (Z_TYPE_P(arg) == IS_ARRAY) {
+		add_assoc_long(return_value, "array_count", zend_hash_num_elements(Z_ARRVAL_P(arg)));
+	} else if(Z_TYPE_P(arg) == IS_RESOURCE) {
+		add_assoc_long(return_value, "resource_handle", Z_LVAL_P(arg));
+		add_assoc_string(return_value, "resource_type", (char *)_symfony_debug_get_resource_type(Z_LVAL_P(arg) TSRMLS_CC), 1);
+		add_assoc_long(return_value, "resource_refcount", _symfony_debug_get_resource_refcount(Z_LVAL_P(arg) TSRMLS_CC));
+	} else if (Z_TYPE_P(arg) == IS_STRING) {
+		add_assoc_long(return_value, "strlen", Z_STRLEN_P(arg));
+	}
+}
+
+void symfony_debug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args)
+{
+	TSRMLS_FETCH();
+	zval *retval;
+
+	switch (type) {
+		case E_ERROR:
+		case E_PARSE:
+		case E_CORE_ERROR:
+		case E_CORE_WARNING:
+		case E_COMPILE_ERROR:
+		case E_COMPILE_WARNING:
+			ALLOC_INIT_ZVAL(retval);
+#if IS_PHP_53
+			zend_fetch_debug_backtrace(retval, 1, 0 TSRMLS_CC);
+#else
+			zend_fetch_debug_backtrace(retval, 1, 0, 0 TSRMLS_CC);
+#endif
+			SYMFONY_DEBUG_G(debug_bt) = retval;
+	}
+
+	SYMFONY_DEBUG_G(old_error_cb)(type, error_filename, error_lineno, format, args);
+}
+
+static const char* _symfony_debug_get_resource_type(long rsid TSRMLS_DC)
+{
+	const char *res_type;
+	res_type = zend_rsrc_list_get_rsrc_type(rsid TSRMLS_CC);
+
+	if (!res_type) {
+		return "Unknown";
+	}
+
+	return res_type;
+}
+
+static int _symfony_debug_get_resource_refcount(long rsid TSRMLS_DC)
+{
+	zend_rsrc_list_entry *le;
+
+	if (zend_hash_index_find(&EG(regular_list), rsid, (void **) &le)==SUCCESS) {
+		return le->refcount;
+	}
+
+	return 0;
+}
+
+static char *_symfony_debug_memory_address_hash(void *address TSRMLS_DC)
+{
+	char *result = NULL;
+	intptr_t address_rand;
+
+	if (!SYMFONY_DEBUG_G(req_rand_init)) {
+		if (!BG(mt_rand_is_seeded)) {
+			php_mt_srand(GENERATE_SEED() TSRMLS_CC);
+		}
+		SYMFONY_DEBUG_G(req_rand_init) = (intptr_t)php_mt_rand(TSRMLS_C);
+	}
+
+	address_rand = (intptr_t)address ^ SYMFONY_DEBUG_G(req_rand_init);
+
+	spprintf(&result, 17, "%016zx", address_rand);
+
+	return result;
+}
+
+static const char *_symfony_debug_zval_type(zval *zv)
+{
+	switch (Z_TYPE_P(zv)) {
+		case IS_NULL:
+			return "NULL";
+			break;
+
+		case IS_BOOL:
+			return "boolean";
+			break;
+
+		case IS_LONG:
+			return "integer";
+			break;
+
+		case IS_DOUBLE:
+			return "double";
+			break;
+
+		case IS_STRING:
+			return "string";
+			break;
+
+		case IS_ARRAY:
+			return "array";
+			break;
+
+		case IS_OBJECT:
+			return "object";
+
+		case IS_RESOURCE:
+			return "resource";
+
+		default:
+			return "unknown type";
+	}
+}
+
+zend_module_entry symfony_debug_module_entry = {
+	STANDARD_MODULE_HEADER,
+	"symfony_debug",
+	symfony_debug_functions,
+	PHP_MINIT(symfony_debug),
+	PHP_MSHUTDOWN(symfony_debug),
+	PHP_RINIT(symfony_debug),
+	PHP_RSHUTDOWN(symfony_debug),
+	PHP_MINFO(symfony_debug),
+	PHP_SYMFONY_DEBUG_VERSION,
+	PHP_MODULE_GLOBALS(symfony_debug),
+	PHP_GINIT(symfony_debug),
+	PHP_GSHUTDOWN(symfony_debug),
+	NULL,
+	STANDARD_MODULE_PROPERTIES_EX
+};
+
+#ifdef COMPILE_DL_SYMFONY_DEBUG
+ZEND_GET_MODULE(symfony_debug)
+#endif
+
+PHP_GINIT_FUNCTION(symfony_debug)
+{
+	memset(symfony_debug_globals, 0 , sizeof(*symfony_debug_globals));
+}
+
+PHP_GSHUTDOWN_FUNCTION(symfony_debug)
+{
+
+}
+
+PHP_MINIT_FUNCTION(symfony_debug)
+{
+	SYMFONY_DEBUG_G(old_error_cb) = zend_error_cb;
+	zend_error_cb                 = symfony_debug_error_cb;
+
+	return SUCCESS;
+}
+
+PHP_MSHUTDOWN_FUNCTION(symfony_debug)
+{
+	zend_error_cb = SYMFONY_DEBUG_G(old_error_cb);
+
+	return SUCCESS;
+}
+
+PHP_RINIT_FUNCTION(symfony_debug)
+{
+	return SUCCESS;
+}
+
+PHP_RSHUTDOWN_FUNCTION(symfony_debug)
+{
+	return SUCCESS;
+}
+
+PHP_MINFO_FUNCTION(symfony_debug)
+{
+	php_info_print_table_start();
+	php_info_print_table_header(2, "Symfony Debug support", "enabled");
+	php_info_print_table_header(2, "Symfony Debug version", PHP_SYMFONY_DEBUG_VERSION);
+	php_info_print_table_end();
+}

Resources/ext/tests/001.phpt

@@ -0,0 +1,155 @@
+--TEST--
+Test symfony_zval_info API
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) {
+    echo 'skip';
+} ?>
+--FILE--
+<?php
+
+$int = 42;
+$float = 42.42;
+$str = 'foobar';
+$object = new StdClass();
+$array = array('foo', 'bar');
+$resource = tmpfile();
+$null = null;
+$bool = true;
+
+$anotherint = 42;
+$refcount2 = &$anotherint;
+
+$var = array(
+    'int' => $int,
+    'float' => $float,
+    'str' => $str,
+    'object' => $object,
+    'array' => $array,
+    'resource' => $resource,
+    'null' => $null,
+    'bool' => $bool,
+    'refcount' => &$refcount2,
+);
+
+var_dump(symfony_zval_info('int', $var));
+var_dump(symfony_zval_info('float', $var));
+var_dump(symfony_zval_info('str', $var));
+var_dump(symfony_zval_info('object', $var));
+var_dump(symfony_zval_info('array', $var));
+var_dump(symfony_zval_info('resource', $var));
+var_dump(symfony_zval_info('null', $var));
+var_dump(symfony_zval_info('bool', $var));
+
+var_dump(symfony_zval_info('refcount', $var));
+var_dump(symfony_zval_info('not-exist', $var));
+?>
+--EXPECTF--
+array(4) {
+  ["type"]=>
+  string(7) "integer"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(6) "double"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(5) {
+  ["type"]=>
+  string(6) "string"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["strlen"]=>
+  int(6)
+}
+array(8) {
+  ["type"]=>
+  string(6) "object"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["object_class"]=>
+  string(8) "stdClass"
+  ["object_refcount"]=>
+  int(1)
+  ["object_hash"]=>
+  string(32) "%s"
+  ["object_handle"]=>
+  int(%d)
+}
+array(5) {
+  ["type"]=>
+  string(5) "array"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["array_count"]=>
+  int(2)
+}
+array(7) {
+  ["type"]=>
+  string(8) "resource"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["resource_handle"]=>
+  int(%d)
+  ["resource_type"]=>
+  string(6) "stream"
+  ["resource_refcount"]=>
+  int(1)
+}
+array(4) {
+  ["type"]=>
+  string(4) "NULL"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(7) "boolean"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(7) "integer"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(3)
+  ["zval_isref"]=>
+  bool(true)
+}
+NULL

Resources/ext/tests/002.phpt

@@ -0,0 +1,65 @@
+--TEST--
+Test symfony_debug_backtrace in case of fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) {
+    echo 'skip';
+} ?>
+--FILE--
+<?php
+
+function bar()
+{
+    foo();
+}
+
+function foo()
+{
+    notexist();
+}
+
+function bt()
+{
+    print_r(symfony_debug_backtrace());
+}
+
+register_shutdown_function('bt');
+
+bar();
+
+?>
+--EXPECTF--
+Fatal error: Call to undefined function notexist() in %s on line %d
+Array
+(
+    [0] => Array
+        (
+            [function] => bt
+            [args] => Array
+                (
+                )
+
+        )
+
+    [1] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => foo
+            [args] => Array
+                (
+                )
+
+        )
+
+    [2] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bar
+            [args] => Array
+                (
+                )
+
+        )
+
+)

Resources/ext/tests/002_1.phpt

@@ -0,0 +1,48 @@
+--TEST--
+Test symfony_debug_backtrace in case of non fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) {
+    echo 'skip';
+} ?>
+--FILE--
+<?php
+
+function bar()
+{
+    bt();
+}
+
+function bt()
+{
+    print_r(symfony_debug_backtrace());
+}
+
+bar();
+
+?>
+--EXPECTF--
+Array
+(
+    [0] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bt
+            [args] => Array
+                (
+                )
+
+        )
+
+    [1] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bar
+            [args] => Array
+                (
+                )
+
+        )
+
+)

Resources/ext/tests/003.phpt

@@ -0,0 +1,87 @@
+--TEST--
+Test ErrorHandler in case of fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) {
+    echo 'skip';
+} ?>
+--FILE--
+<?php
+
+namespace Psr\Log;
+
+class LogLevel
+{
+    const EMERGENCY = 'emergency';
+    const ALERT = 'alert';
+    const CRITICAL = 'critical';
+    const ERROR = 'error';
+    const WARNING = 'warning';
+    const NOTICE = 'notice';
+    const INFO = 'info';
+    const DEBUG = 'debug';
+}
+
+namespace Symfony\Component\Debug;
+
+$dir = __DIR__.'/../../../';
+require $dir.'ErrorHandler.php';
+require $dir.'Exception/FatalErrorException.php';
+require $dir.'Exception/UndefinedFunctionException.php';
+require $dir.'FatalErrorHandler/FatalErrorHandlerInterface.php';
+require $dir.'FatalErrorHandler/ClassNotFoundFatalErrorHandler.php';
+require $dir.'FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php';
+require $dir.'FatalErrorHandler/UndefinedMethodFatalErrorHandler.php';
+
+function bar()
+{
+    foo();
+}
+
+function foo()
+{
+    notexist();
+}
+
+$handler = ErrorHandler::register();
+$handler->setExceptionHandler('print_r');
+
+if (function_exists('xdebug_disable')) {
+    xdebug_disable();
+}
+
+bar();
+?>
+--EXPECTF--
+Fatal error: Call to undefined function Symfony\Component\Debug\notexist() in %s on line %d
+Symfony\Component\Debug\Exception\UndefinedFunctionException Object
+(
+    [message:protected] => Attempted to call function "notexist" from namespace "Symfony\Component\Debug".
+    [string:Exception:private] => 
+    [code:protected] => 0
+    [file:protected] => %s
+    [line:protected] => %d
+    [trace:Exception:private] => Array
+        (
+            [0] => Array
+                (
+%A                    [function] => Symfony\Component\Debug\foo
+%A                    [args] => Array
+                        (
+                        )
+
+                )
+
+            [1] => Array
+                (
+%A                    [function] => Symfony\Component\Debug\bar
+%A                    [args] => Array
+                        (
+                        )
+
+                )
+%A
+        )
+
+    [previous:Exception:private] => 
+    [severity:protected] => 1
+)

Tests/DebugClassLoaderTest.php

@@ -12,12 +12,9 @@
 namespace Symfony\Component\Debug\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Bridge\Debug\Tests\Fixtures\ExtendsDeprecatedParent;
 use Symfony\Component\Debug\DebugClassLoader;
+use Symfony\Component\Debug\ErrorHandler;
 
-/**
- * @group legacy
- */
 class DebugClassLoaderTest extends TestCase
 {
     /**
@@ -27,35 +24,33 @@ class DebugClassLoaderTest extends TestCase
 
     private $loader;
 
-    protected function setUp(): void
+    protected function setUp()
     {
-        $this->errorReporting = error_reporting(E_ALL);
-        $this->loader = [new DebugClassLoader([new ClassLoader(), 'loadClass']), 'loadClass'];
-        spl_autoload_register($this->loader, true, true);
+        $this->errorReporting = error_reporting(E_ALL | E_STRICT);
+        $this->loader = new ClassLoader();
+        spl_autoload_register(array($this->loader, 'loadClass'), true, true);
+        DebugClassLoader::enable();
     }
 
-    protected function tearDown(): void
+    protected function tearDown()
     {
-        spl_autoload_unregister($this->loader);
+        DebugClassLoader::disable();
+        spl_autoload_unregister(array($this->loader, 'loadClass'));
         error_reporting($this->errorReporting);
     }
 
-    /**
-     * @runInSeparateProcess
-     */
     public function testIdempotence()
     {
         DebugClassLoader::enable();
-        DebugClassLoader::enable();
 
         $functions = spl_autoload_functions();
         foreach ($functions as $function) {
-            if (\is_array($function) && $function[0] instanceof DebugClassLoader) {
+            if (is_array($function) && $function[0] instanceof DebugClassLoader) {
                 $reflClass = new \ReflectionClass($function[0]);
                 $reflProp = $reflClass->getProperty('classLoader');
                 $reflProp->setAccessible(true);
 
-                $this->assertNotInstanceOf(DebugClassLoader::class, $reflProp->getValue($function[0]));
+                $this->assertNotInstanceOf('Symfony\Component\Debug\DebugClassLoader', $reflProp->getValue($function[0]));
 
                 return;
             }
@@ -64,43 +59,118 @@ class DebugClassLoaderTest extends TestCase
         $this->fail('DebugClassLoader did not register');
     }
 
+    /**
+     * @expectedException \Exception
+     * @expectedExceptionMessage boo
+     */
     public function testThrowingClass()
     {
-        $this->expectException(\Exception::class);
-        $this->expectExceptionMessage('boo');
         try {
-            class_exists(Fixtures\Throwing::class);
+            class_exists(__NAMESPACE__.'\Fixtures\Throwing');
             $this->fail('Exception expected');
         } catch (\Exception $e) {
             $this->assertSame('boo', $e->getMessage());
         }
 
         // the second call also should throw
-        class_exists(Fixtures\Throwing::class);
+        class_exists(__NAMESPACE__.'\Fixtures\Throwing');
     }
 
+    public function testUnsilencing()
+    {
+        if (\PHP_VERSION_ID >= 70000) {
+            $this->markTestSkipped('PHP7 throws exceptions, unsilencing is not required anymore.');
+        }
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('HHVM is not handled in this test case.');
+        }
+
+        ob_start();
+
+        $this->iniSet('log_errors', 0);
+        $this->iniSet('display_errors', 1);
+
+        // See below: this will fail with parse error
+        // but this should not be @-silenced.
+        @class_exists(__NAMESPACE__.'\TestingUnsilencing', true);
+
+        $output = ob_get_clean();
+
+        $this->assertStringMatchesFormat('%aParse error%a', $output);
+    }
+
+    public function testStacking()
+    {
+        // the ContextErrorException must not be loaded to test the workaround
+        // for https://bugs.php.net/65322.
+        if (class_exists('Symfony\Component\Debug\Exception\ContextErrorException', false)) {
+            $this->markTestSkipped('The ContextErrorException class is already loaded.');
+        }
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('HHVM is not handled in this test case.');
+        }
+
+        ErrorHandler::register();
+
+        try {
+            // Trigger autoloading + E_STRICT at compile time
+            // which in turn triggers $errorHandler->handle()
+            // that again triggers autoloading for ContextErrorException.
+            // Error stacking works around the bug above and everything is fine.
+
+            eval('
+                namespace '.__NAMESPACE__.';
+                class ChildTestingStacking extends TestingStacking { function foo($bar) {} }
+            ');
+            $this->fail('ContextErrorException expected');
+        } catch (\ErrorException $exception) {
+            // if an exception is thrown, the test passed
+            restore_error_handler();
+            restore_exception_handler();
+            $this->assertStringStartsWith(__FILE__, $exception->getFile());
+            if (\PHP_VERSION_ID < 70000) {
+                $this->assertRegExp('/^Runtime Notice: Declaration/', $exception->getMessage());
+                $this->assertEquals(E_STRICT, $exception->getSeverity());
+            } else {
+                $this->assertRegExp('/^Warning: Declaration/', $exception->getMessage());
+                $this->assertEquals(E_WARNING, $exception->getSeverity());
+            }
+        } catch (\Exception $exception) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $exception;
+        }
+    }
+
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Case mismatch between loaded and declared class names
+     */
     public function testNameCaseMismatch()
     {
-        $this->expectException(\RuntimeException::class);
-        $this->expectExceptionMessage('Case mismatch between loaded and declared class names');
-        class_exists(TestingCaseMismatch::class, true);
+        class_exists(__NAMESPACE__.'\TestingCaseMismatch', true);
     }
 
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Case mismatch between class and real file names
+     */
     public function testFileCaseMismatch()
     {
-        $this->expectException(\RuntimeException::class);
-        $this->expectExceptionMessage('Case mismatch between class and real file names');
         if (!file_exists(__DIR__.'/Fixtures/CaseMismatch.php')) {
             $this->markTestSkipped('Can only be run on case insensitive filesystems');
         }
 
-        class_exists(Fixtures\CaseMismatch::class, true);
+        class_exists(__NAMESPACE__.'\Fixtures\CaseMismatch', true);
     }
 
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Case mismatch between loaded and declared class names
+     */
     public function testPsr4CaseMismatch()
     {
-        $this->expectException(\RuntimeException::class);
-        $this->expectExceptionMessage('Case mismatch between loaded and declared class names');
         class_exists(__NAMESPACE__.'\Fixtures\Psr4CaseMismatch', true);
     }
 
@@ -116,7 +186,7 @@ class DebugClassLoaderTest extends TestCase
 
     public function testClassAlias()
     {
-        $this->assertTrue(class_exists(Fixtures\ClassAlias::class, true));
+        $this->assertTrue(class_exists(__NAMESPACE__.'\Fixtures\ClassAlias', true));
     }
 
     /**
@@ -136,42 +206,20 @@ class DebugClassLoaderTest extends TestCase
         $lastError = error_get_last();
         unset($lastError['file'], $lastError['line']);
 
-        $xError = [
+        $xError = array(
             'type' => E_USER_DEPRECATED,
-            'message' => 'The "Test\Symfony\Component\Debug\Tests\\'.$class.'" class '.$type.' "Symfony\Component\Debug\Tests\Fixtures\\'.$super.'" that is deprecated but this is a test deprecation notice.',
-        ];
+            'message' => 'The Test\Symfony\Component\Debug\Tests\\'.$class.' class '.$type.' Symfony\Component\Debug\Tests\Fixtures\\'.$super.' that is deprecated but this is a test deprecation notice',
+        );
 
         $this->assertSame($xError, $lastError);
     }
 
     public function provideDeprecatedSuper()
     {
-        return [
-            ['DeprecatedInterfaceClass', 'DeprecatedInterface', 'implements'],
-            ['DeprecatedParentClass', 'DeprecatedClass', 'extends'],
-        ];
-    }
-
-    public function testInterfaceExtendsDeprecatedInterface()
-    {
-        set_error_handler(function () { return false; });
-        $e = error_reporting(0);
-        trigger_error('', E_USER_NOTICE);
-
-        class_exists('Test\\'.NonDeprecatedInterfaceClass::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $lastError = error_get_last();
-        unset($lastError['file'], $lastError['line']);
-
-        $xError = [
-            'type' => E_USER_NOTICE,
-            'message' => '',
-        ];
-
-        $this->assertSame($xError, $lastError);
+        return array(
+            array('DeprecatedInterfaceClass', 'DeprecatedInterface', 'implements'),
+            array('DeprecatedParentClass', 'DeprecatedClass', 'extends'),
+        );
     }
 
     public function testDeprecatedSuperInSameNamespace()
@@ -180,7 +228,7 @@ class DebugClassLoaderTest extends TestCase
         $e = error_reporting(0);
         trigger_error('', E_USER_NOTICE);
 
-        class_exists(ExtendsDeprecatedParent::class, true);
+        class_exists('Symfony\Bridge\Debug\Tests\Fixtures\ExtendsDeprecatedParent', true);
 
         error_reporting($e);
         restore_error_handler();
@@ -188,69 +236,25 @@ class DebugClassLoaderTest extends TestCase
         $lastError = error_get_last();
         unset($lastError['file'], $lastError['line']);
 
-        $xError = [
+        $xError = array(
             'type' => E_USER_NOTICE,
             'message' => '',
-        ];
+        );
 
         $this->assertSame($xError, $lastError);
     }
 
-    public function testExtendedFinalClass()
+    public function testReservedForPhp7()
     {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        require __DIR__.'/Fixtures/FinalClasses.php';
-
-        $i = 1;
-        while (class_exists($finalClass = Fixtures\FinalClass::class.$i++, false)) {
-            spl_autoload_call($finalClass);
-            class_exists('Test\\'.__NAMESPACE__.'\\Extends'.substr($finalClass, strrpos($finalClass, '\\') + 1), true);
+        if (\PHP_VERSION_ID >= 70000) {
+            $this->markTestSkipped('PHP7 already prevents using reserved names.');
         }
 
-        error_reporting($e);
-        restore_error_handler();
-
-        $this->assertSame([
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass1" class is considered final since version 3.3. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass1".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass2" class is considered final. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass2".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass3" class is considered final comment with @@@ and ***. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass3".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass4" class is considered final. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass4".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass5" class is considered final multiline comment. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass5".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass6" class is considered final. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass6".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass7" class is considered final another multiline comment... It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass7".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\FinalClass8" class is considered final. It may change without further notice as of its next major version. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsFinalClass8".',
-        ], $deprecations);
-    }
-
-    public function testExtendedFinalMethod()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists(Fixtures\ExtendedFinalMethod::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $xError = [
-            '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".',
-        ];
-
-        $this->assertSame($xError, $deprecations);
-    }
-
-    public function testExtendedDeprecatedMethodDoesntTriggerAnyNotice()
-    {
         set_error_handler(function () { return false; });
         $e = error_reporting(0);
         trigger_error('', E_USER_NOTICE);
 
-        class_exists('Test\\'.ExtendsAnnotatedClass::class, true);
+        class_exists('Test\\'.__NAMESPACE__.'\\Float', true);
 
         error_reporting($e);
         restore_error_handler();
@@ -258,108 +262,12 @@ class DebugClassLoaderTest extends TestCase
         $lastError = error_get_last();
         unset($lastError['file'], $lastError['line']);
 
-        $this->assertSame(['type' => E_USER_NOTICE, 'message' => ''], $lastError);
-    }
+        $xError = array(
+            'type' => E_USER_DEPRECATED,
+            'message' => 'Test\Symfony\Component\Debug\Tests\Float uses a reserved class name (Float) that will break on PHP 7 and higher',
+        );
 
-    public function testInternalsUse()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists('Test\\'.ExtendsInternals::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $this->assertSame($deprecations, [
-            'The "Symfony\Component\Debug\Tests\Fixtures\InternalInterface" interface is considered internal. It may change without further notice. You should not use it from "Test\Symfony\Component\Debug\Tests\ExtendsInternalsParent".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\InternalClass" class is considered internal. It may change without further notice. You should not use it from "Test\Symfony\Component\Debug\Tests\ExtendsInternalsParent".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\InternalTrait" trait is considered internal. It may change without further notice. You should not use it from "Test\Symfony\Component\Debug\Tests\ExtendsInternals".',
-            'The "Symfony\Component\Debug\Tests\Fixtures\InternalClass::internalMethod()" method is considered internal. It may change without further notice. You should not extend it from "Test\Symfony\Component\Debug\Tests\ExtendsInternals".',
-        ]);
-    }
-
-    public function testExtendedMethodDefinesNewParameters()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists(Fixtures\SubClassWithAnnotatedParameters::class, true);
-
-        error_reporting($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 $matrix" argument in the next major version of its interface "Symfony\Component\Debug\Tests\Fixtures\InterfaceWithAnnotatedParameters", not defining it is deprecated.',
-            'The "Symfony\Component\Debug\Tests\Fixtures\SubClassWithAnnotatedParameters::iAmHere()" method will require a new "$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);
-    }
-
-    public function testUseTraitWithInternalMethod()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists('Test\\'.UseTraitWithInternalMethod::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $this->assertSame([], $deprecations);
-    }
-
-    public function testVirtualUse()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists('Test\\'.ExtendsVirtual::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $this->assertSame([
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::sameLineInterfaceMethodNoBraces()".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::newLineInterfaceMethod()": Some description!',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::newLineInterfaceMethodNoBraces()": Description.',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::invalidInterfaceMethod()".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::invalidInterfaceMethodNoBraces()".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::complexInterfaceMethod($arg, ...$args)".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::complexInterfaceMethodTyped($arg, int ...$args)": Description ...',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "static Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::staticMethodNoBraces()".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "static Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::staticMethodTyped(int $arg)": Description.',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtualParent" should implement method "static Symfony\Component\Debug\Tests\Fixtures\VirtualInterface::staticMethodTypedNoBraces()".',
-            'Class "Test\Symfony\Component\Debug\Tests\ExtendsVirtual" should implement method "Symfony\Component\Debug\Tests\Fixtures\VirtualSubInterface::subInterfaceMethod()".',
-        ], $deprecations);
-    }
-
-    public function testVirtualUseWithMagicCall()
-    {
-        $deprecations = [];
-        set_error_handler(function ($type, $msg) use (&$deprecations) { $deprecations[] = $msg; });
-        $e = error_reporting(E_USER_DEPRECATED);
-
-        class_exists('Test\\'.ExtendsVirtualMagicCall::class, true);
-
-        error_reporting($e);
-        restore_error_handler();
-
-        $this->assertSame([], $deprecations);
-    }
-
-    public function testEvaluatedCode()
-    {
-        $this->assertTrue(class_exists(Fixtures\DefinitionInEvaluatedCode::class, true));
+        $this->assertSame($xError, $lastError);
     }
 }
 
@@ -371,78 +279,37 @@ class ClassLoader
 
     public function getClassMap()
     {
-        return [__NAMESPACE__.'\Fixtures\NotPSR0bis' => __DIR__.'/Fixtures/notPsr0Bis.php'];
+        return array(__NAMESPACE__.'\Fixtures\NotPSR0bis' => __DIR__.'/Fixtures/notPsr0Bis.php');
     }
 
     public function findFile($class)
     {
-        $fixtureDir = __DIR__.\DIRECTORY_SEPARATOR.'Fixtures'.\DIRECTORY_SEPARATOR;
+        $fixtureDir = __DIR__.DIRECTORY_SEPARATOR.'Fixtures'.DIRECTORY_SEPARATOR;
 
-        if (TestingUnsilencing::class === $class) {
+        if (__NAMESPACE__.'\TestingUnsilencing' === $class) {
             eval('-- parse error --');
-        } elseif (TestingStacking::class === $class) {
+        } elseif (__NAMESPACE__.'\TestingStacking' === $class) {
             eval('namespace '.__NAMESPACE__.'; class TestingStacking { function foo() {} }');
-        } elseif (TestingCaseMismatch::class === $class) {
+        } elseif (__NAMESPACE__.'\TestingCaseMismatch' === $class) {
             eval('namespace '.__NAMESPACE__.'; class TestingCaseMisMatch {}');
+        } elseif (__NAMESPACE__.'\Fixtures\CaseMismatch' === $class) {
+            return $fixtureDir.'CaseMismatch.php';
         } elseif (__NAMESPACE__.'\Fixtures\Psr4CaseMismatch' === $class) {
-            return $fixtureDir.'psr4'.\DIRECTORY_SEPARATOR.'Psr4CaseMismatch.php';
+            return $fixtureDir.'psr4'.DIRECTORY_SEPARATOR.'Psr4CaseMismatch.php';
         } elseif (__NAMESPACE__.'\Fixtures\NotPSR0' === $class) {
             return $fixtureDir.'reallyNotPsr0.php';
         } elseif (__NAMESPACE__.'\Fixtures\NotPSR0bis' === $class) {
             return $fixtureDir.'notPsr0Bis.php';
+        } elseif (__NAMESPACE__.'\Fixtures\DeprecatedInterface' === $class) {
+            return $fixtureDir.'DeprecatedInterface.php';
         } elseif ('Symfony\Bridge\Debug\Tests\Fixtures\ExtendsDeprecatedParent' === $class) {
             eval('namespace Symfony\Bridge\Debug\Tests\Fixtures; class ExtendsDeprecatedParent extends \\'.__NAMESPACE__.'\Fixtures\DeprecatedClass {}');
-        } elseif ('Test\\'.DeprecatedParentClass::class === $class) {
+        } elseif ('Test\\'.__NAMESPACE__.'\DeprecatedParentClass' === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class DeprecatedParentClass extends \\'.__NAMESPACE__.'\Fixtures\DeprecatedClass {}');
-        } elseif ('Test\\'.DeprecatedInterfaceClass::class === $class) {
+        } elseif ('Test\\'.__NAMESPACE__.'\DeprecatedInterfaceClass' === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class DeprecatedInterfaceClass implements \\'.__NAMESPACE__.'\Fixtures\DeprecatedInterface {}');
-        } elseif ('Test\\'.NonDeprecatedInterfaceClass::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class NonDeprecatedInterfaceClass implements \\'.__NAMESPACE__.'\Fixtures\NonDeprecatedInterface {}');
-        } elseif ('Test\\'.Float::class === $class) {
+        } elseif ('Test\\'.__NAMESPACE__.'\Float' === $class) {
             eval('namespace Test\\'.__NAMESPACE__.'; class Float {}');
-        } elseif (0 === strpos($class, 'Test\\'.ExtendsFinalClass::class)) {
-            $classShortName = substr($class, strrpos($class, '\\') + 1);
-            eval('namespace Test\\'.__NAMESPACE__.'; class '.$classShortName.' extends \\'.__NAMESPACE__.'\Fixtures\\'.substr($classShortName, 7).' {}');
-        } elseif ('Test\\'.ExtendsAnnotatedClass::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsAnnotatedClass extends \\'.__NAMESPACE__.'\Fixtures\AnnotatedClass {
-                public function deprecatedMethod() { }
-            }');
-        } elseif ('Test\\'.ExtendsInternals::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsInternals extends ExtendsInternalsParent {
-                use \\'.__NAMESPACE__.'\Fixtures\InternalTrait;
-
-                public function internalMethod() { }
-            }');
-        } elseif ('Test\\'.ExtendsInternalsParent::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsInternalsParent extends \\'.__NAMESPACE__.'\Fixtures\InternalClass implements \\'.__NAMESPACE__.'\Fixtures\InternalInterface { }');
-        } elseif ('Test\\'.UseTraitWithInternalMethod::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class UseTraitWithInternalMethod { use \\'.__NAMESPACE__.'\Fixtures\TraitWithInternalMethod; }');
-        } 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\\'.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\\'.ExtendsVirtualAbstract::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; abstract class ExtendsVirtualAbstract extends ExtendsVirtualAbstractBase {
-                public static function staticMethod() { }
-                public function ownAbstractMethod() { }
-                public function interfaceMethod() { }
-            }');
-        } 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\\'.ExtendsVirtualMagicCall::class === $class) {
-            eval('namespace Test\\'.__NAMESPACE__.'; class ExtendsVirtualMagicCall extends \\'.__NAMESPACE__.'\Fixtures\VirtualClassMagicCall implements \\'.__NAMESPACE__.'\Fixtures\VirtualInterface {
-            }');
         }
     }
 }

Tests/ErrorHandlerTest.php

@@ -12,23 +12,15 @@
 namespace Symfony\Component\Debug\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Psr\Log\LoggerInterface;
 use Psr\Log\LogLevel;
-use Psr\Log\NullLogger;
-use Symfony\Component\Debug\BufferingLogger;
 use Symfony\Component\Debug\ErrorHandler;
-use Symfony\Component\Debug\Exception\ClassNotFoundException;
-use Symfony\Component\Debug\Exception\SilencedErrorContext;
-use Symfony\Component\Debug\Tests\Fixtures\ErrorHandlerThatUsesThePreviousOne;
-use Symfony\Component\Debug\Tests\Fixtures\LoggerThatSetAnErrorHandler;
+use Symfony\Component\Debug\Exception\ContextErrorException;
 
 /**
  * ErrorHandlerTest.
  *
  * @author Robert Schönthal <seroscho@googlemail.com>
  * @author Nicolas Grekas <p@tchwork.com>
- *
- * @group legacy
  */
 class ErrorHandlerTest extends TestCase
 {
@@ -37,7 +29,7 @@ class ErrorHandlerTest extends TestCase
         $handler = ErrorHandler::register();
 
         try {
-            $this->assertInstanceOf(ErrorHandler::class, $handler);
+            $this->assertInstanceOf('Symfony\Component\Debug\ErrorHandler', $handler);
             $this->assertSame($handler, ErrorHandler::register());
 
             $newHandler = new ErrorHandler();
@@ -45,13 +37,13 @@ class ErrorHandlerTest extends TestCase
             $this->assertSame($handler, ErrorHandler::register($newHandler, false));
             $h = set_error_handler('var_dump');
             restore_error_handler();
-            $this->assertSame([$handler, 'handleError'], $h);
+            $this->assertSame(array($handler, 'handleError'), $h);
 
             try {
                 $this->assertSame($newHandler, ErrorHandler::register($newHandler, true));
                 $h = set_error_handler('var_dump');
                 restore_error_handler();
-                $this->assertSame([$newHandler, 'handleError'], $h);
+                $this->assertSame(array($newHandler, 'handleError'), $h);
             } catch (\Exception $e) {
             }
 
@@ -74,19 +66,19 @@ class ErrorHandlerTest extends TestCase
 
     public function testErrorGetLast()
     {
-        $logger = $this->createMock(LoggerInterface::class);
         $handler = ErrorHandler::register();
+        $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
         $handler->setDefaultLogger($logger);
-        $handler->screamAt(\E_ALL);
+        $handler->screamAt(E_ALL);
 
         try {
-            @trigger_error('Hello', \E_USER_WARNING);
-            $expected = [
-                'type' => \E_USER_WARNING,
+            @trigger_error('Hello', E_USER_WARNING);
+            $expected = array(
+                'type' => E_USER_WARNING,
                 'message' => 'Hello',
                 'file' => __FILE__,
                 'line' => __LINE__ - 5,
-            ];
+            );
             $this->assertSame($expected, error_get_last());
         } catch (\Exception $e) {
             restore_error_handler();
@@ -102,38 +94,47 @@ class ErrorHandlerTest extends TestCase
 
         try {
             self::triggerNotice($this);
-            $this->fail('ErrorException expected');
-        } catch (\ErrorException $exception) {
+            $this->fail('ContextErrorException expected');
+        } catch (ContextErrorException $exception) {
             // if an exception is thrown, the test passed
-            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());
-
-            $trace = $exception->getTrace();
-
-            $this->assertEquals(__FILE__, $trace[0]['file']);
-            $this->assertEquals(__CLASS__, $trace[0]['class']);
-            $this->assertEquals('triggerNotice', $trace[0]['function']);
-            $this->assertEquals('::', $trace[0]['type']);
-
-            $this->assertEquals(__FILE__, $trace[0]['file']);
-            $this->assertEquals(__CLASS__, $trace[1]['class']);
-            $this->assertEquals(__FUNCTION__, $trace[1]['function']);
-            $this->assertEquals('->', $trace[1]['type']);
-        } finally {
             restore_error_handler();
             restore_exception_handler();
+
+            $this->assertEquals(E_NOTICE, $exception->getSeverity());
+            $this->assertEquals(__FILE__, $exception->getFile());
+            $this->assertRegExp('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
+            if (\PHP_VERSION_ID < 70200) {
+                $this->assertArrayHasKey('foobar', $exception->getContext());
+            }
+
+            $trace = $exception->getTrace();
+            $this->assertEquals(__FILE__, $trace[0]['file']);
+            $this->assertEquals('Symfony\Component\Debug\ErrorHandler', $trace[0]['class']);
+            $this->assertEquals('handleError', $trace[0]['function']);
+            $this->assertEquals('->', $trace[0]['type']);
+
+            $this->assertEquals(__FILE__, $trace[1]['file']);
+            $this->assertEquals(__CLASS__, $trace[1]['class']);
+            $this->assertEquals('triggerNotice', $trace[1]['function']);
+            $this->assertEquals('::', $trace[1]['type']);
+
+            $this->assertEquals(__FILE__, $trace[1]['file']);
+            $this->assertEquals(__CLASS__, $trace[2]['class']);
+            $this->assertEquals(__FUNCTION__, $trace[2]['function']);
+            $this->assertEquals('->', $trace[2]['type']);
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
         }
     }
 
     // dummy function to test trace in error handler.
     private static function triggerNotice($that)
     {
+        // dummy variable to check for in error handler.
+        $foobar = 123;
         $that->assertSame('', $foo.$foo.$bar);
     }
 
@@ -142,43 +143,54 @@ class ErrorHandlerTest extends TestCase
         try {
             $handler = ErrorHandler::register();
             $handler->throwAt(3, true);
-            $this->assertEquals(3 | \E_RECOVERABLE_ERROR | \E_USER_ERROR, $handler->throwAt(0));
-        } finally {
+            $this->assertEquals(3 | E_RECOVERABLE_ERROR | E_USER_ERROR, $handler->throwAt(0));
+
             restore_error_handler();
             restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
         }
     }
 
     public function testDefaultLogger()
     {
         try {
-            $logger = $this->createMock(LoggerInterface::class);
             $handler = ErrorHandler::register();
 
-            $handler->setDefaultLogger($logger, \E_NOTICE);
-            $handler->setDefaultLogger($logger, [\E_USER_NOTICE => LogLevel::CRITICAL]);
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
+
+            $handler->setDefaultLogger($logger, E_NOTICE);
+            $handler->setDefaultLogger($logger, array(E_USER_NOTICE => LogLevel::CRITICAL));
+
+            $loggers = array(
+                E_DEPRECATED => array(null, LogLevel::INFO),
+                E_USER_DEPRECATED => array(null, LogLevel::INFO),
+                E_NOTICE => array($logger, LogLevel::WARNING),
+                E_USER_NOTICE => array($logger, LogLevel::CRITICAL),
+                E_STRICT => array(null, LogLevel::WARNING),
+                E_WARNING => array(null, LogLevel::WARNING),
+                E_USER_WARNING => array(null, LogLevel::WARNING),
+                E_COMPILE_WARNING => array(null, LogLevel::WARNING),
+                E_CORE_WARNING => array(null, LogLevel::WARNING),
+                E_USER_ERROR => array(null, LogLevel::CRITICAL),
+                E_RECOVERABLE_ERROR => array(null, LogLevel::CRITICAL),
+                E_COMPILE_ERROR => array(null, LogLevel::CRITICAL),
+                E_PARSE => array(null, LogLevel::CRITICAL),
+                E_ERROR => array(null, LogLevel::CRITICAL),
+                E_CORE_ERROR => array(null, LogLevel::CRITICAL),
+            );
+            $this->assertSame($loggers, $handler->setLoggers(array()));
 
-            $loggers = [
-                \E_DEPRECATED => [null, LogLevel::INFO],
-                \E_USER_DEPRECATED => [null, LogLevel::INFO],
-                \E_NOTICE => [$logger, LogLevel::WARNING],
-                \E_USER_NOTICE => [$logger, LogLevel::CRITICAL],
-                \E_STRICT => [null, LogLevel::WARNING],
-                \E_WARNING => [null, LogLevel::WARNING],
-                \E_USER_WARNING => [null, LogLevel::WARNING],
-                \E_COMPILE_WARNING => [null, LogLevel::WARNING],
-                \E_CORE_WARNING => [null, LogLevel::WARNING],
-                \E_USER_ERROR => [null, LogLevel::CRITICAL],
-                \E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
-                \E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
-                \E_PARSE => [null, LogLevel::CRITICAL],
-                \E_ERROR => [null, LogLevel::CRITICAL],
-                \E_CORE_ERROR => [null, LogLevel::CRITICAL],
-            ];
-            $this->assertSame($loggers, $handler->setLoggers([]));
-        } finally {
             restore_error_handler();
             restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
         }
     }
 
@@ -187,14 +199,14 @@ class ErrorHandlerTest extends TestCase
         try {
             $handler = ErrorHandler::register();
             $handler->throwAt(0, true);
-            $this->assertFalse($handler->handleError(0, 'foo', 'foo.php', 12, []));
+            $this->assertFalse($handler->handleError(0, 'foo', 'foo.php', 12, array()));
 
             restore_error_handler();
             restore_exception_handler();
 
             $handler = ErrorHandler::register();
             $handler->throwAt(3, true);
-            $this->assertFalse($handler->handleError(4, 'foo', 'foo.php', 12, []));
+            $this->assertFalse($handler->handleError(4, 'foo', 'foo.php', 12, array()));
 
             restore_error_handler();
             restore_exception_handler();
@@ -202,7 +214,7 @@ class ErrorHandlerTest extends TestCase
             $handler = ErrorHandler::register();
             $handler->throwAt(3, true);
             try {
-                $handler->handleError(4, 'foo', 'foo.php', 12, []);
+                $handler->handleError(4, 'foo', 'foo.php', 12, array());
             } catch (\ErrorException $e) {
                 $this->assertSame('Parse Error: foo', $e->getMessage());
                 $this->assertSame(4, $e->getSeverity());
@@ -214,81 +226,63 @@ class ErrorHandlerTest extends TestCase
             restore_exception_handler();
 
             $handler = ErrorHandler::register();
-            $handler->throwAt(\E_USER_DEPRECATED, true);
-            $this->assertFalse($handler->handleError(\E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->throwAt(E_USER_DEPRECATED, true);
+            $this->assertFalse($handler->handleError(E_USER_DEPRECATED, 'foo', 'foo.php', 12, array()));
 
             restore_error_handler();
             restore_exception_handler();
 
             $handler = ErrorHandler::register();
-            $handler->throwAt(\E_DEPRECATED, true);
-            $this->assertFalse($handler->handleError(\E_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->throwAt(E_DEPRECATED, true);
+            $this->assertFalse($handler->handleError(E_DEPRECATED, 'foo', 'foo.php', 12, array()));
 
             restore_error_handler();
             restore_exception_handler();
 
-            $logger = $this->createMock(LoggerInterface::class);
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
 
-            $warnArgCheck = function ($logLevel, $message, $context) {
-                $this->assertEquals('info', $logLevel);
-                $this->assertEquals('User Deprecated: foo', $message);
-                $this->assertArrayHasKey('exception', $context);
-                $exception = $context['exception'];
-                $this->assertInstanceOf(\ErrorException::class, $exception);
-                $this->assertSame('User Deprecated: foo', $exception->getMessage());
-                $this->assertSame(\E_USER_DEPRECATED, $exception->getSeverity());
+            $that = $this;
+            $warnArgCheck = function ($logLevel, $message, $context) use ($that) {
+                $that->assertEquals('info', $logLevel);
+                $that->assertEquals('foo', $message);
+                $that->assertArrayHasKey('type', $context);
+                $that->assertEquals($context['type'], E_USER_DEPRECATED);
+                $that->assertArrayHasKey('stack', $context);
+                $that->assertInternalType('array', $context['stack']);
             };
 
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->willReturnCallback($warnArgCheck)
+                ->will($this->returnCallback($warnArgCheck))
             ;
 
             $handler = ErrorHandler::register();
-            $handler->setDefaultLogger($logger, \E_USER_DEPRECATED);
-            $this->assertTrue($handler->handleError(\E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->setDefaultLogger($logger, E_USER_DEPRECATED);
+            $this->assertTrue($handler->handleError(E_USER_DEPRECATED, 'foo', 'foo.php', 12, array()));
 
             restore_error_handler();
             restore_exception_handler();
 
-            $logger = $this->createMock(LoggerInterface::class);
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
 
-            $line = null;
-            $logArgCheck = function ($level, $message, $context) use (&$line) {
-                $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(__FILE__, $exception->getFile());
-                $this->assertSame($line, $exception->getLine());
-                $this->assertNotEmpty($exception->getTrace());
-                $this->assertSame(1, $exception->count);
+            $that = $this;
+            $logArgCheck = function ($level, $message, $context) use ($that) {
+                $that->assertEquals('Undefined variable: undefVar', $message);
+                $that->assertArrayHasKey('type', $context);
+                $that->assertEquals($context['type'], E_NOTICE);
             };
 
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->willReturnCallback($logArgCheck)
+                ->will($this->returnCallback($logArgCheck))
             ;
 
             $handler = ErrorHandler::register();
-            if (\PHP_VERSION_ID < 80000) {
-                $handler->setDefaultLogger($logger, \E_NOTICE);
-                $handler->screamAt(\E_NOTICE);
-            } else {
-                $handler->setDefaultLogger($logger, \E_WARNING);
-                $handler->screamAt(\E_WARNING);
-            }
+            $handler->setDefaultLogger($logger, E_NOTICE);
+            $handler->screamAt(E_NOTICE);
             unset($undefVar);
-            $line = __LINE__ + 1;
             @$undefVar++;
 
             restore_error_handler();
@@ -301,95 +295,54 @@ class ErrorHandlerTest extends TestCase
         }
     }
 
-    public function testHandleUserError()
-    {
-        if (\PHP_VERSION_ID >= 70400) {
-            $this->markTestSkipped('PHP 7.4 allows __toString to throw exceptions');
-        }
-
-        try {
-            $handler = ErrorHandler::register();
-            $handler->throwAt(0, true);
-
-            $e = null;
-            $x = new \Exception('Foo');
-
-            try {
-                $f = new Fixtures\ToStringThrower($x);
-                $f .= ''; // Trigger $f->__toString()
-            } catch (\Exception $e) {
-            }
-
-            $this->assertSame($x, $e);
-        } finally {
-            restore_error_handler();
-            restore_exception_handler();
-        }
-    }
-
-    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) {
-            $this->assertEquals(LogLevel::INFO, $level);
-            $this->assertArrayHasKey('exception', $context);
-            $exception = $context['exception'];
-            $this->assertInstanceOf(\ErrorException::class, $exception);
-            $this->assertSame('User Deprecated: Foo deprecation', $exception->getMessage());
+        $that = $this;
+        $logArgCheck = function ($level, $message, $context) use ($that) {
+            $that->assertEquals(LogLevel::INFO, $level);
+            $that->assertArrayHasKey('level', $context);
+            $that->assertEquals(E_RECOVERABLE_ERROR | E_USER_ERROR | E_DEPRECATED | E_USER_DEPRECATED, $context['level']);
+            $that->assertArrayHasKey('stack', $context);
         };
 
-        $logger = $this->createMock(LoggerInterface::class);
+        $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
         $logger
             ->expects($this->once())
             ->method('log')
-            ->willReturnCallback($logArgCheck)
+            ->will($this->returnCallback($logArgCheck))
         ;
 
         $handler = new ErrorHandler();
         $handler->setDefaultLogger($logger);
-        @$handler->handleError(\E_USER_DEPRECATED, 'Foo deprecation', __FILE__, __LINE__, []);
+        @$handler->handleError(E_USER_DEPRECATED, 'Foo deprecation', __FILE__, __LINE__, array());
     }
 
+    /**
+     * @group no-hhvm
+     */
     public function testHandleException()
     {
         try {
-            $logger = $this->createMock(LoggerInterface::class);
             $handler = ErrorHandler::register();
 
             $exception = new \Exception('foo');
 
-            $logArgCheck = function ($level, $message, $context) {
-                $this->assertSame('Uncaught Exception: foo', $message);
-                $this->assertArrayHasKey('exception', $context);
-                $this->assertInstanceOf(\Exception::class, $context['exception']);
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
+
+            $that = $this;
+            $logArgCheck = function ($level, $message, $context) use ($that) {
+                $that->assertEquals('Uncaught Exception: foo', $message);
+                $that->assertArrayHasKey('type', $context);
+                $that->assertEquals($context['type'], E_ERROR);
             };
 
             $logger
                 ->expects($this->exactly(2))
                 ->method('log')
-                ->willReturnCallback($logArgCheck)
+                ->will($this->returnCallback($logArgCheck))
             ;
 
-            $handler->setDefaultLogger($logger, \E_ERROR);
+            $handler->setDefaultLogger($logger, E_ERROR);
 
             try {
                 $handler->handleException($exception);
@@ -398,113 +351,88 @@ class ErrorHandlerTest extends TestCase
                 $this->assertSame($exception, $e);
             }
 
-            $handler->setExceptionHandler(function ($e) use ($exception) {
-                $this->assertSame($exception, $e);
+            $that = $this;
+            $handler->setExceptionHandler(function ($e) use ($exception, $that) {
+                $that->assertSame($exception, $e);
             });
 
             $handler->handleException($exception);
-        } finally {
+
             restore_error_handler();
             restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
         }
     }
 
-    public function testBootstrappingLogger()
+    public function testErrorStacking()
     {
-        $bootLogger = new BufferingLogger();
-        $handler = new ErrorHandler($bootLogger);
+        try {
+            $handler = ErrorHandler::register();
+            $handler->screamAt(E_USER_WARNING);
 
-        $loggers = [
-            \E_DEPRECATED => [$bootLogger, LogLevel::INFO],
-            \E_USER_DEPRECATED => [$bootLogger, LogLevel::INFO],
-            \E_NOTICE => [$bootLogger, LogLevel::WARNING],
-            \E_USER_NOTICE => [$bootLogger, LogLevel::WARNING],
-            \E_STRICT => [$bootLogger, LogLevel::WARNING],
-            \E_WARNING => [$bootLogger, LogLevel::WARNING],
-            \E_USER_WARNING => [$bootLogger, LogLevel::WARNING],
-            \E_COMPILE_WARNING => [$bootLogger, LogLevel::WARNING],
-            \E_CORE_WARNING => [$bootLogger, LogLevel::WARNING],
-            \E_USER_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            \E_RECOVERABLE_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            \E_COMPILE_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            \E_PARSE => [$bootLogger, LogLevel::CRITICAL],
-            \E_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            \E_CORE_ERROR => [$bootLogger, LogLevel::CRITICAL],
-        ];
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
 
-        $this->assertSame($loggers, $handler->setLoggers([]));
+            $logger
+                ->expects($this->exactly(2))
+                ->method('log')
+                ->withConsecutive(
+                    array($this->equalTo(LogLevel::WARNING), $this->equalTo('Dummy log')),
+                    array($this->equalTo(LogLevel::DEBUG), $this->equalTo('Silenced warning'))
+                )
+            ;
 
-        $handler->handleError(\E_DEPRECATED, 'Foo message', __FILE__, 123, []);
+            $handler->setDefaultLogger($logger, array(E_USER_WARNING => LogLevel::WARNING));
 
-        $logs = $bootLogger->cleanLogs();
+            ErrorHandler::stackErrors();
+            @trigger_error('Silenced warning', E_USER_WARNING);
+            $logger->log(LogLevel::WARNING, 'Dummy log');
+            ErrorHandler::unstackErrors();
 
-        $this->assertCount(1, $logs);
-        $log = $logs[0];
-        $this->assertSame('info', $log[0]);
-        $this->assertSame('Deprecated: Foo message', $log[1]);
-        $this->assertArrayHasKey('exception', $log[2]);
-        $exception = $log[2]['exception'];
-        $this->assertInstanceOf(\ErrorException::class, $exception);
-        $this->assertSame('Deprecated: Foo message', $exception->getMessage());
-        $this->assertSame(__FILE__, $exception->getFile());
-        $this->assertSame(123, $exception->getLine());
-        $this->assertSame(\E_DEPRECATED, $exception->getSeverity());
+            restore_error_handler();
+            restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
 
-        $bootLogger->log(LogLevel::WARNING, 'Foo message', ['exception' => $exception]);
-
-        $mockLogger = $this->createMock(LoggerInterface::class);
-        $mockLogger->expects($this->once())
-            ->method('log')
-            ->with(LogLevel::WARNING, 'Foo message', ['exception' => $exception]);
-
-        $handler->setLoggers([\E_DEPRECATED => [$mockLogger, LogLevel::WARNING]]);
-    }
-
-    public function testSettingLoggerWhenExceptionIsBuffered()
-    {
-        $bootLogger = new BufferingLogger();
-        $handler = new ErrorHandler($bootLogger);
-
-        $exception = new \Exception('Foo message');
-
-        $mockLogger = $this->createMock(LoggerInterface::class);
-        $mockLogger->expects($this->once())
-            ->method('log')
-            ->with(LogLevel::CRITICAL, 'Uncaught Exception: Foo message', ['exception' => $exception]);
-
-        $handler->setExceptionHandler(function () use ($handler, $mockLogger) {
-            $handler->setDefaultLogger($mockLogger);
-        });
-
-        $handler->handleException($exception);
+            throw $e;
+        }
     }
 
+    /**
+     * @group no-hhvm
+     */
     public function testHandleFatalError()
     {
         try {
-            $logger = $this->createMock(LoggerInterface::class);
             $handler = ErrorHandler::register();
 
-            $error = [
-                'type' => \E_PARSE,
+            $error = array(
+                'type' => E_PARSE,
                 'message' => 'foo',
                 'file' => 'bar',
                 'line' => 123,
-            ];
+            );
 
-            $logArgCheck = function ($level, $message, $context) {
-                $this->assertEquals('Fatal Parse Error: foo', $message);
-                $this->assertArrayHasKey('exception', $context);
-                $this->assertInstanceOf(\Exception::class, $context['exception']);
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
+
+            $that = $this;
+            $logArgCheck = function ($level, $message, $context) use ($that) {
+                $that->assertEquals('Fatal Parse Error: foo', $message);
+                $that->assertArrayHasKey('type', $context);
+                $that->assertEquals($context['type'], E_PARSE);
             };
 
             $logger
                 ->expects($this->once())
                 ->method('log')
-                ->willReturnCallback($logArgCheck)
+                ->will($this->returnCallback($logArgCheck))
             ;
 
-            $handler->setDefaultLogger($logger, \E_PARSE);
+            $handler->setDefaultLogger($logger, E_PARSE);
 
             $handler->handleFatalError($error);
 
@@ -518,24 +446,121 @@ class ErrorHandlerTest extends TestCase
         }
     }
 
+    /**
+     * @requires PHP 7
+     */
     public function testHandleErrorException()
     {
-        $exception = new \Error("Class 'IReallyReallyDoNotExistAnywhereInTheRepositoryISwear' not found");
+        $exception = new \Error("Class 'Foo' not found");
 
         $handler = new ErrorHandler();
         $handler->setExceptionHandler(function () use (&$args) {
-            $args = \func_get_args();
+            $args = func_get_args();
         });
 
         $handler->handleException($exception);
 
-        $this->assertInstanceOf(ClassNotFoundException::class, $args[0]);
-        $this->assertStringStartsWith("Attempted to load class \"IReallyReallyDoNotExistAnywhereInTheRepositoryISwear\" from the global namespace.\nDid you forget a \"use\" statement", $args[0]->getMessage());
+        $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $args[0]);
+        $this->assertStringStartsWith("Attempted to load class \"Foo\" from the global namespace.\nDid you forget a \"use\" statement", $args[0]->getMessage());
     }
 
+    /**
+     * @group no-hhvm
+     */
+    public function testHandleFatalErrorOnHHVM()
+    {
+        try {
+            $handler = ErrorHandler::register();
+
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
+            $logger
+                ->expects($this->once())
+                ->method('log')
+                ->with(
+                    $this->equalTo(LogLevel::CRITICAL),
+                    $this->equalTo('Fatal Error: foo'),
+                    $this->equalTo(array(
+                        'type' => 1,
+                        'file' => 'bar',
+                        'line' => 123,
+                        'level' => -1,
+                        'stack' => array(456),
+                    ))
+                )
+            ;
+
+            $handler->setDefaultLogger($logger, E_ERROR);
+
+            $error = array(
+                'type' => E_ERROR + 0x1000000, // This error level is used by HHVM for fatal errors
+                'message' => 'foo',
+                'file' => 'bar',
+                'line' => 123,
+                'context' => array(123),
+                'backtrace' => array(456),
+            );
+
+            call_user_func_array(array($handler, 'handleError'), $error);
+            $handler->handleFatalError($error);
+
+            restore_error_handler();
+            restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testLegacyInterface()
+    {
+        try {
+            $handler = ErrorHandler::register(0);
+            $this->assertFalse($handler->handle(0, 'foo', 'foo.php', 12, array()));
+
+            restore_error_handler();
+            restore_exception_handler();
+
+            $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
+
+            $that = $this;
+            $logArgCheck = function ($level, $message, $context) use ($that) {
+                $that->assertEquals('Undefined variable: undefVar', $message);
+                $that->assertArrayHasKey('type', $context);
+                $that->assertEquals($context['type'], E_NOTICE);
+            };
+
+            $logger
+                ->expects($this->once())
+                ->method('log')
+                ->will($this->returnCallback($logArgCheck))
+            ;
+
+            $handler = ErrorHandler::register(E_NOTICE);
+            @$handler->setLogger($logger, 'scream');
+            unset($undefVar);
+            @$undefVar++;
+
+            restore_error_handler();
+            restore_exception_handler();
+        } catch (\Exception $e) {
+            restore_error_handler();
+            restore_exception_handler();
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @expectedException \Exception
+     * @group no-hhvm
+     */
     public function testCustomExceptionHandler()
     {
-        $this->expectException(\Exception::class);
         $handler = new ErrorHandler();
         $handler->setExceptionHandler(function ($e) use ($handler) {
             $handler->handleException($e);
@@ -543,58 +568,4 @@ class ErrorHandlerTest extends TestCase
 
         $handler->handleException(new \Exception());
     }
-
-    /**
-     * @dataProvider errorHandlerWhenLoggingProvider
-     */
-    public function testErrorHandlerWhenLogging($previousHandlerWasDefined, $loggerSetsAnotherHandler, $nextHandlerIsDefined)
-    {
-        try {
-            if ($previousHandlerWasDefined) {
-                set_error_handler('count');
-            }
-
-            $logger = $loggerSetsAnotherHandler ? new LoggerThatSetAnErrorHandler() : new NullLogger();
-
-            $handler = ErrorHandler::register();
-            $handler->setDefaultLogger($logger);
-
-            if ($nextHandlerIsDefined) {
-                $handler = ErrorHandlerThatUsesThePreviousOne::register();
-            }
-
-            @trigger_error('foo', \E_USER_DEPRECATED);
-            @trigger_error('bar', \E_USER_DEPRECATED);
-
-            $this->assertSame([$handler, 'handleError'], set_error_handler('var_dump'));
-
-            if ($logger instanceof LoggerThatSetAnErrorHandler) {
-                $this->assertCount(2, $logger->cleanLogs());
-            }
-
-            restore_error_handler();
-
-            if ($previousHandlerWasDefined) {
-                restore_error_handler();
-            }
-
-            if ($nextHandlerIsDefined) {
-                restore_error_handler();
-            }
-        } finally {
-            restore_error_handler();
-            restore_exception_handler();
-        }
-    }
-
-    public function errorHandlerWhenLoggingProvider()
-    {
-        foreach ([false, true] as $previousHandlerWasDefined) {
-            foreach ([false, true] as $loggerSetsAnotherHandler) {
-                foreach ([false, true] as $nextHandlerIsDefined) {
-                    yield [$previousHandlerWasDefined, $loggerSetsAnotherHandler, $nextHandlerIsDefined];
-                }
-            }
-        }
-    }
 }

Tests/Exception/FlattenExceptionTest.php

@@ -12,27 +12,22 @@
 namespace Symfony\Component\Debug\Tests\Exception;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Debug\Exception\FatalThrowableError;
 use Symfony\Component\Debug\Exception\FlattenException;
-use Symfony\Component\HttpFoundation\Exception\SuspiciousOperationException;
-use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
+use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
+use Symfony\Component\HttpKernel\Exception\NotAcceptableHttpException;
 use Symfony\Component\HttpKernel\Exception\ConflictHttpException;
+use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 use Symfony\Component\HttpKernel\Exception\GoneHttpException;
 use Symfony\Component\HttpKernel\Exception\LengthRequiredHttpException;
-use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
-use Symfony\Component\HttpKernel\Exception\NotAcceptableHttpException;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\HttpKernel\Exception\PreconditionFailedHttpException;
 use Symfony\Component\HttpKernel\Exception\PreconditionRequiredHttpException;
 use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;
 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()
@@ -43,12 +38,6 @@ class FlattenExceptionTest extends TestCase
         $flattened = FlattenException::create(new \RuntimeException());
         $this->assertEquals('500', $flattened->getStatusCode());
 
-        $flattened = FlattenException::createFromThrowable(new \DivisionByZeroError(), 403);
-        $this->assertEquals('403', $flattened->getStatusCode());
-
-        $flattened = FlattenException::createFromThrowable(new \DivisionByZeroError());
-        $this->assertEquals('500', $flattened->getStatusCode());
-
         $flattened = FlattenException::create(new NotFoundHttpException());
         $this->assertEquals('404', $flattened->getStatusCode());
 
@@ -64,7 +53,7 @@ class FlattenExceptionTest extends TestCase
         $flattened = FlattenException::create(new ConflictHttpException());
         $this->assertEquals('409', $flattened->getStatusCode());
 
-        $flattened = FlattenException::create(new MethodNotAllowedHttpException(['POST']));
+        $flattened = FlattenException::create(new MethodNotAllowedHttpException(array('POST')));
         $this->assertEquals('405', $flattened->getStatusCode());
 
         $flattened = FlattenException::create(new AccessDeniedHttpException());
@@ -90,41 +79,36 @@ class FlattenExceptionTest extends TestCase
 
         $flattened = FlattenException::create(new UnsupportedMediaTypeHttpException());
         $this->assertEquals('415', $flattened->getStatusCode());
-
-        if (class_exists(SuspiciousOperationException::class)) {
-            $flattened = FlattenException::create(new SuspiciousOperationException());
-            $this->assertEquals('400', $flattened->getStatusCode());
-        }
     }
 
     public function testHeadersForHttpException()
     {
-        $flattened = FlattenException::create(new MethodNotAllowedHttpException(['POST']));
-        $this->assertEquals(['Allow' => 'POST'], $flattened->getHeaders());
+        $flattened = FlattenException::create(new MethodNotAllowedHttpException(array('POST')));
+        $this->assertEquals(array('Allow' => 'POST'), $flattened->getHeaders());
 
         $flattened = FlattenException::create(new UnauthorizedHttpException('Basic realm="My Realm"'));
-        $this->assertEquals(['WWW-Authenticate' => 'Basic realm="My Realm"'], $flattened->getHeaders());
+        $this->assertEquals(array('WWW-Authenticate' => 'Basic realm="My Realm"'), $flattened->getHeaders());
 
         $flattened = FlattenException::create(new ServiceUnavailableHttpException('Fri, 31 Dec 1999 23:59:59 GMT'));
-        $this->assertEquals(['Retry-After' => 'Fri, 31 Dec 1999 23:59:59 GMT'], $flattened->getHeaders());
+        $this->assertEquals(array('Retry-After' => 'Fri, 31 Dec 1999 23:59:59 GMT'), $flattened->getHeaders());
 
         $flattened = FlattenException::create(new ServiceUnavailableHttpException(120));
-        $this->assertEquals(['Retry-After' => 120], $flattened->getHeaders());
+        $this->assertEquals(array('Retry-After' => 120), $flattened->getHeaders());
 
         $flattened = FlattenException::create(new TooManyRequestsHttpException('Fri, 31 Dec 1999 23:59:59 GMT'));
-        $this->assertEquals(['Retry-After' => 'Fri, 31 Dec 1999 23:59:59 GMT'], $flattened->getHeaders());
+        $this->assertEquals(array('Retry-After' => 'Fri, 31 Dec 1999 23:59:59 GMT'), $flattened->getHeaders());
 
         $flattened = FlattenException::create(new TooManyRequestsHttpException(120));
-        $this->assertEquals(['Retry-After' => 120], $flattened->getHeaders());
+        $this->assertEquals(array('Retry-After' => 120), $flattened->getHeaders());
     }
 
     /**
      * @dataProvider flattenDataProvider
      */
-    public function testFlattenHttpException(\Throwable $exception)
+    public function testFlattenHttpException(\Exception $exception)
     {
-        $flattened = FlattenException::createFromThrowable($exception);
-        $flattened2 = FlattenException::createFromThrowable($exception);
+        $flattened = FlattenException::create($exception);
+        $flattened2 = FlattenException::create($exception);
 
         $flattened->setPrevious($flattened2);
 
@@ -133,199 +117,94 @@ class FlattenExceptionTest extends TestCase
         $this->assertInstanceOf($flattened->getClass(), $exception, 'The class is set to the class of the original exception');
     }
 
-    public function testWrappedThrowable()
-    {
-        $exception = new FatalThrowableError(new \DivisionByZeroError('Ouch', 42));
-        $flattened = FlattenException::create($exception);
-
-        $this->assertSame('Ouch', $flattened->getMessage(), 'The message is copied from the original error.');
-        $this->assertSame(42, $flattened->getCode(), 'The code is copied from the original error.');
-        $this->assertSame('DivisionByZeroError', $flattened->getClass(), 'The class is set to the class of the original error');
-    }
-
-    public function testThrowable()
-    {
-        $error = new \DivisionByZeroError('Ouch', 42);
-        $flattened = FlattenException::createFromThrowable($error);
-
-        $this->assertSame('Ouch', $flattened->getMessage(), 'The message is copied from the original error.');
-        $this->assertSame(42, $flattened->getCode(), 'The code is copied from the original error.');
-        $this->assertSame('DivisionByZeroError', $flattened->getClass(), 'The class is set to the class of the original error');
-    }
-
     /**
      * @dataProvider flattenDataProvider
      */
-    public function testPrevious(\Throwable $exception)
+    public function testPrevious(\Exception $exception)
     {
-        $flattened = FlattenException::createFromThrowable($exception);
-        $flattened2 = FlattenException::createFromThrowable($exception);
+        $flattened = FlattenException::create($exception);
+        $flattened2 = FlattenException::create($exception);
 
         $flattened->setPrevious($flattened2);
 
         $this->assertSame($flattened2, $flattened->getPrevious());
 
-        $this->assertSame([$flattened2], $flattened->getAllPrevious());
+        $this->assertSame(array($flattened2), $flattened->getAllPrevious());
     }
 
+    /**
+     * @requires PHP 7.0
+     */
     public function testPreviousError()
     {
         $exception = new \Exception('test', 123, new \ParseError('Oh noes!', 42));
 
         $flattened = FlattenException::create($exception)->getPrevious();
 
-        $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');
+        $this->assertEquals($flattened->getMessage(), 'Parse error: 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(), 'Symfony\Component\Debug\Exception\FatalThrowableError', 'The class is set to the class of the original exception');
     }
 
     /**
      * @dataProvider flattenDataProvider
      */
-    public function testLine(\Throwable $exception)
+    public function testLine(\Exception $exception)
     {
-        $flattened = FlattenException::createFromThrowable($exception);
+        $flattened = FlattenException::create($exception);
         $this->assertSame($exception->getLine(), $flattened->getLine());
     }
 
     /**
      * @dataProvider flattenDataProvider
      */
-    public function testFile(\Throwable $exception)
+    public function testFile(\Exception $exception)
     {
-        $flattened = FlattenException::createFromThrowable($exception);
+        $flattened = FlattenException::create($exception);
         $this->assertSame($exception->getFile(), $flattened->getFile());
     }
 
     /**
      * @dataProvider flattenDataProvider
      */
-    public function testToArray(\Throwable $exception, string $expectedClass)
+    public function testToArray(\Exception $exception)
     {
-        $flattened = FlattenException::createFromThrowable($exception);
-        $flattened->setTrace([], 'foo.php', 123);
+        $flattened = FlattenException::create($exception);
+        $flattened->setTrace(array(), 'foo.php', 123);
 
-        $this->assertEquals([
-            [
+        $this->assertEquals(array(
+            array(
                 'message' => 'test',
-                'class' => $expectedClass,
-                'trace' => [[
+                'class' => 'Exception',
+                'trace' => array(array(
                     'namespace' => '', 'short_class' => '', 'class' => '', 'type' => '', 'function' => '', 'file' => 'foo.php', 'line' => 123,
-                    'args' => [],
-                ]],
-            ],
-        ], $flattened->toArray());
-    }
-
-    public function testCreate()
-    {
-        $exception = new NotFoundHttpException(
-            'test',
-            new \RuntimeException('previous', 123)
-        );
-
-        $this->assertSame(
-            FlattenException::createFromThrowable($exception)->toArray(),
-            FlattenException::create($exception)->toArray()
-        );
+                    'args' => array(),
+                )),
+            ),
+        ), $flattened->toArray());
     }
 
     public function flattenDataProvider()
     {
-        return [
-            [new \Exception('test', 123), 'Exception'],
-            [new \Error('test', 123), 'Error'],
-        ];
-    }
-
-    public function testArguments()
-    {
-        if (\PHP_VERSION_ID >= 70400) {
-            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
-        }
-
-        $dh = opendir(__DIR__);
-        $fh = tmpfile();
-
-        $incomplete = unserialize('O:14:"BogusTestClass":0:{}');
-
-        $exception = $this->createException([
-            (object) ['foo' => 1],
-            new NotFoundHttpException(),
-            $incomplete,
-            $dh,
-            $fh,
-            function () {},
-            [1, 2],
-            ['foo' => 123],
-            null,
-            true,
-            false,
-            0,
-            0.0,
-            '0',
-            '',
-            \INF,
-            \NAN,
-        ]);
-
-        $flattened = FlattenException::create($exception);
-        $trace = $flattened->getTrace();
-        $args = $trace[1]['args'];
-        $array = $args[0][1];
-
-        closedir($dh);
-        fclose($fh);
-
-        $i = 0;
-        $this->assertSame(['object', 'stdClass'], $array[$i++]);
-        $this->assertSame(['object', 'Symfony\Component\HttpKernel\Exception\NotFoundHttpException'], $array[$i++]);
-        $this->assertSame(['incomplete-object', 'BogusTestClass'], $array[$i++]);
-        $this->assertSame(['resource', 'stream'], $array[$i++]);
-        $this->assertSame(['resource', 'stream'], $array[$i++]);
-
-        $args = $array[$i++];
-        $this->assertSame($args[0], 'object');
-        $this->assertTrue('Closure' === $args[1] || is_subclass_of($args[1], \Closure::class), 'Expect object class name to be Closure or a subclass of Closure.');
-
-        $this->assertSame(['array', [['integer', 1], ['integer', 2]]], $array[$i++]);
-        $this->assertSame(['array', ['foo' => ['integer', 123]]], $array[$i++]);
-        $this->assertSame(['null', null], $array[$i++]);
-        $this->assertSame(['boolean', true], $array[$i++]);
-        $this->assertSame(['boolean', false], $array[$i++]);
-        $this->assertSame(['integer', 0], $array[$i++]);
-        $this->assertSame(['float', 0.0], $array[$i++]);
-        $this->assertSame(['string', '0'], $array[$i++]);
-        $this->assertSame(['string', ''], $array[$i++]);
-        $this->assertSame(['float', \INF], $array[$i++]);
-
-        // assertEquals() does not like NAN values.
-        $this->assertEquals('float', $array[$i][0]);
-        $this->assertNan($array[$i][1]);
+        return array(
+            array(new \Exception('test', 123)),
+        );
     }
 
     public function testRecursionInArguments()
     {
-        if (\PHP_VERSION_ID >= 70400) {
-            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
-        }
-
         $a = null;
-        $a = ['foo', [2, &$a]];
+        $a = array('foo', array(2, &$a));
         $exception = $this->createException($a);
 
         $flattened = FlattenException::create($exception);
         $trace = $flattened->getTrace();
-        $this->assertStringContainsString('*DEEP NESTED ARRAY*', serialize($trace));
+        $this->assertContains('*DEEP NESTED ARRAY*', serialize($trace));
     }
 
     public function testTooBigArray()
     {
-        if (\PHP_VERSION_ID >= 70400) {
-            $this->markTestSkipped('PHP 7.4 removes arguments from exception traces.');
-        }
-
-        $a = [];
+        $a = array();
         for ($i = 0; $i < 20; ++$i) {
             for ($j = 0; $j < 50; ++$j) {
                 for ($k = 0; $k < 10; ++$k) {
@@ -339,70 +218,55 @@ class FlattenExceptionTest extends TestCase
 
         $flattened = FlattenException::create($exception);
         $trace = $flattened->getTrace();
-
-        $this->assertSame($trace[1]['args'][0], ['array', ['array', '*SKIPPED over 10000 entries*']]);
-
         $serializeTrace = serialize($trace);
 
-        $this->assertStringContainsString('*SKIPPED over 10000 entries*', $serializeTrace);
-        $this->assertStringNotContainsString('*value1*', $serializeTrace);
-    }
-
-    public function testAnonymousClass()
-    {
-        $flattened = FlattenException::create(new class() extends \RuntimeException {
-        });
-
-        $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 {
-        }))));
-
-        $this->assertSame('Class "RuntimeException@anonymous" blah.', $flattened->getMessage());
-    }
-
-    public function testToStringEmptyMessage()
-    {
-        $exception = new \RuntimeException();
-
-        $flattened = FlattenException::create($exception);
-
-        $this->assertSame($exception->getTraceAsString(), $flattened->getTraceAsString());
-        $this->assertSame($exception->__toString(), $flattened->getAsString());
-    }
-
-    public function testToString()
-    {
-        $test = function ($a, $b, $c, $d) {
-            return new \RuntimeException('This is a test message');
-        };
-
-        $exception = $test('foo123', 1, null, 1.5);
-
-        $flattened = FlattenException::create($exception);
-
-        $this->assertSame($exception->getTraceAsString(), $flattened->getTraceAsString());
-        $this->assertSame($exception->__toString(), $flattened->getAsString());
-    }
-
-    public function testToStringParent()
-    {
-        $exception = new \LogicException('This is message 1');
-        $exception = new \RuntimeException('This is messsage 2', 500, $exception);
-
-        $flattened = FlattenException::create($exception);
-
-        $this->assertSame($exception->getTraceAsString(), $flattened->getTraceAsString());
-        $this->assertSame($exception->__toString(), $flattened->getAsString());
+        $this->assertContains('*SKIPPED over 10000 entries*', $serializeTrace);
+        $this->assertNotContains('*value1*', $serializeTrace);
     }
 
     private function createException($foo)
     {
         return new \Exception();
     }
+
+    public function testSetTraceIncompleteClass()
+    {
+        $flattened = FlattenException::create(new \Exception('test', 123));
+        $flattened->setTrace(
+            array(
+                array(
+                    'file' => __FILE__,
+                    'line' => 123,
+                    'function' => 'test',
+                    'args' => array(
+                        unserialize('O:14:"BogusTestClass":0:{}'),
+                    ),
+                ),
+            ),
+            'foo.php', 123
+        );
+
+        $this->assertEquals(array(
+            array(
+                'message' => 'test',
+                'class' => 'Exception',
+                'trace' => array(
+                    array(
+                        'namespace' => '', 'short_class' => '', 'class' => '', 'type' => '', 'function' => '',
+                        'file' => 'foo.php', 'line' => 123,
+                        'args' => array(),
+                    ),
+                    array(
+                        'namespace' => '', 'short_class' => '', 'class' => '', 'type' => '', 'function' => 'test',
+                        'file' => __FILE__, 'line' => 123,
+                        'args' => array(
+                            array(
+                                'incomplete-object', 'BogusTestClass',
+                            ),
+                        ),
+                    ),
+                ),
+            ),
+        ), $flattened->toArray());
+    }
 }

Tests/ExceptionHandlerTest.php

@@ -12,31 +12,25 @@
 namespace Symfony\Component\Debug\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Debug\Exception\OutOfMemoryException;
 use Symfony\Component\Debug\ExceptionHandler;
-use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
+use Symfony\Component\Debug\Exception\OutOfMemoryException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
 
 require_once __DIR__.'/HeaderMock.php';
 
-/**
- * @group legacy
- */
 class ExceptionHandlerTest extends TestCase
 {
-    protected function setUp(): void
+    protected function setUp()
     {
         testHeader();
     }
 
-    protected function tearDown(): void
+    protected function tearDown()
     {
         testHeader();
     }
 
-    /**
-     * @group legacy
-     */
     public function testDebug()
     {
         $handler = new ExceptionHandler(false);
@@ -45,8 +39,8 @@ class ExceptionHandlerTest extends TestCase
         $handler->sendPhpResponse(new \RuntimeException('Foo'));
         $response = ob_get_clean();
 
-        $this->assertStringContainsString('Whoops, looks like something went wrong.', $response);
-        $this->assertStringNotContainsString('<div class="trace trace-as-html">', $response);
+        $this->assertContains('<h1>Whoops, looks like something went wrong.</h1>', $response);
+        $this->assertNotContains('<h2 class="block_exception clear_fix">', $response);
 
         $handler = new ExceptionHandler(true);
 
@@ -54,17 +48,8 @@ class ExceptionHandlerTest extends TestCase
         $handler->sendPhpResponse(new \RuntimeException('Foo'));
         $response = ob_get_clean();
 
-        $this->assertStringContainsString('<h1 class="break-long-words exception-message">Foo</h1>', $response);
-        $this->assertStringContainsString('<div class="trace trace-as-html">', $response);
-
-        // taken from https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)
-        $htmlWithXss = '<body onload=alert(\'test1\')> <b onmouseover=alert(\'Wufff!\')>click me!</b> <img src="j&#X41vascript:alert(\'test2\')"> <meta http-equiv="refresh"
-content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg">';
-        ob_start();
-        $handler->sendPhpResponse(new \RuntimeException($htmlWithXss));
-        $response = ob_get_clean();
-
-        $this->assertStringContainsString(sprintf('<h1 class="break-long-words exception-message">%s</h1>', htmlspecialchars($htmlWithXss, \ENT_COMPAT | \ENT_SUBSTITUTE, 'UTF-8')), $response);
+        $this->assertContains('<h1>Whoops, looks like something went wrong.</h1>', $response);
+        $this->assertContains('<h2 class="block_exception clear_fix">', $response);
     }
 
     public function testStatusCode()
@@ -75,12 +60,12 @@ content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg"
         $handler->sendPhpResponse(new NotFoundHttpException('Foo'));
         $response = ob_get_clean();
 
-        $this->assertStringContainsString('Sorry, the page you are looking for could not be found.', $response);
+        $this->assertContains('Sorry, the page you are looking for could not be found.', $response);
 
-        $expectedHeaders = [
-            ['HTTP/1.0 404', true, null],
-            ['Content-Type: text/html; charset=iso8859-1', true, null],
-        ];
+        $expectedHeaders = array(
+            array('HTTP/1.0 404', true, null),
+            array('Content-Type: text/html; charset=iso8859-1', true, null),
+        );
 
         $this->assertSame($expectedHeaders, testHeader());
     }
@@ -90,14 +75,14 @@ content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg"
         $handler = new ExceptionHandler(false, 'iso8859-1');
 
         ob_start();
-        $handler->sendPhpResponse(new MethodNotAllowedHttpException(['POST']));
-        ob_get_clean();
+        $handler->sendPhpResponse(new MethodNotAllowedHttpException(array('POST')));
+        $response = ob_get_clean();
 
-        $expectedHeaders = [
-            ['HTTP/1.0 405', true, null],
-            ['Allow: POST', false, null],
-            ['Content-Type: text/html; charset=iso8859-1', true, null],
-        ];
+        $expectedHeaders = array(
+            array('HTTP/1.0 405', true, null),
+            array('Allow: POST', false, null),
+            array('Content-Type: text/html; charset=iso8859-1', true, null),
+        );
 
         $this->assertSame($expectedHeaders, testHeader());
     }
@@ -109,70 +94,42 @@ content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg"
         $handler->sendPhpResponse(new \RuntimeException('Foo', 0, new \RuntimeException('Bar')));
         $response = ob_get_clean();
 
-        $this->assertStringMatchesFormat('%A<p class="break-long-words trace-message">Foo</p>%A<p class="break-long-words trace-message">Bar</p>%A', $response);
+        $this->assertStringMatchesFormat('%A<span class="exception_message">Foo</span>%A<span class="exception_message">Bar</span>%A', $response);
     }
 
     public function testHandle()
     {
-        $handler = new ExceptionHandler(true);
-        ob_start();
+        $exception = new \Exception('foo');
 
-        $handler->handle(new \Exception('foo'));
+        $handler = $this->getMockBuilder('Symfony\Component\Debug\ExceptionHandler')->setMethods(array('sendPhpResponse'))->getMock();
+        $handler
+            ->expects($this->exactly(2))
+            ->method('sendPhpResponse');
 
-        $this->assertThatTheExceptionWasOutput(ob_get_clean(), \Exception::class, 'Exception', 'foo');
-    }
+        $handler->handle($exception);
 
-    public function testHandleWithACustomHandlerThatOutputsSomething()
-    {
-        $handler = new ExceptionHandler(true);
-        ob_start();
-        $handler->setHandler(function () {
-            echo 'ccc';
+        $that = $this;
+        $handler->setHandler(function ($e) use ($exception, $that) {
+            $that->assertSame($exception, $e);
         });
 
-        $handler->handle(new \Exception());
-        ob_end_flush(); // Necessary because of this PHP bug : https://bugs.php.net/76563
-        $this->assertSame('ccc', ob_get_clean());
-    }
-
-    public function testHandleWithACustomHandlerThatOutputsNothing()
-    {
-        $handler = new ExceptionHandler(true);
-        $handler->setHandler(function () {});
-
-        $handler->handle(new \Exception('ccc'));
-
-        $this->assertThatTheExceptionWasOutput(ob_get_clean(), \Exception::class, 'Exception', 'ccc');
-    }
-
-    public function testHandleWithACustomHandlerThatFails()
-    {
-        $handler = new ExceptionHandler(true);
-        $handler->setHandler(function () {
-            throw new \RuntimeException();
-        });
-
-        $handler->handle(new \Exception('ccc'));
-
-        $this->assertThatTheExceptionWasOutput(ob_get_clean(), \Exception::class, 'Exception', 'ccc');
+        $handler->handle($exception);
     }
 
     public function testHandleOutOfMemoryException()
     {
-        $handler = new ExceptionHandler(true);
-        ob_start();
-        $handler->setHandler(function () {
-            $this->fail('OutOfMemoryException should bypass the handler');
+        $exception = new OutOfMemoryException('foo', 0, E_ERROR, __FILE__, __LINE__);
+
+        $handler = $this->getMockBuilder('Symfony\Component\Debug\ExceptionHandler')->setMethods(array('sendPhpResponse'))->getMock();
+        $handler
+            ->expects($this->once())
+            ->method('sendPhpResponse');
+
+        $that = $this;
+        $handler->setHandler(function ($e) use ($that) {
+            $that->fail('OutOfMemoryException should bypass the handler');
         });
 
-        $handler->handle(new OutOfMemoryException('foo', 0, \E_ERROR, __FILE__, __LINE__));
-
-        $this->assertThatTheExceptionWasOutput(ob_get_clean(), OutOfMemoryException::class, 'OutOfMemoryException', 'foo');
-    }
-
-    private function assertThatTheExceptionWasOutput($content, $expectedClass, $expectedTitle, $expectedMessage)
-    {
-        $this->assertStringContainsString(sprintf('<span class="exception_title"><abbr title="%s">%s</abbr></span>', $expectedClass, $expectedTitle), $content);
-        $this->assertStringContainsString(sprintf('<p class="break-long-words trace-message">%s</p>', $expectedMessage), $content);
+        $handler->handle($exception);
     }
 }

Tests/FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

@@ -11,36 +11,30 @@
 
 namespace Symfony\Component\Debug\Tests\FatalErrorHandler;
 
-use Composer\Autoload\ClassLoader as ComposerClassLoader;
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Debug\DebugClassLoader;
-use Symfony\Component\Debug\Exception\ClassNotFoundException;
+use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\UniversalClassLoader as SymfonyUniversalClassLoader;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
+use Symfony\Component\Debug\DebugClassLoader;
+use Composer\Autoload\ClassLoader as ComposerClassLoader;
 
-/**
- * @group legacy
- */
 class ClassNotFoundFatalErrorHandlerTest extends TestCase
 {
-    public static function setUpBeforeClass(): void
+    public static function setUpBeforeClass()
     {
         foreach (spl_autoload_functions() as $function) {
-            if (!\is_array($function)) {
+            if (!is_array($function)) {
                 continue;
             }
 
             // 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(__DIR__, 5));
+                $function[0]->add('Symfony_Component_Debug_Tests_Fixtures', dirname(dirname(dirname(dirname(dirname(__DIR__))))));
                 break;
             }
         }
@@ -68,137 +62,120 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
             array_map('spl_autoload_register', $autoloaders);
         }
 
-        $this->assertInstanceOf(ClassNotFoundException::class, $exception);
-        $this->assertMatchesRegularExpression($translatedMessage, $exception->getMessage());
+        $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
+        $this->assertSame($translatedMessage, $exception->getMessage());
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
         $this->assertSame($error['line'], $exception->getLine());
     }
 
+    /**
+     * @group legacy
+     */
+    public function testLegacyHandleClassNotFound()
+    {
+        $prefixes = array('Symfony\Component\Debug\Exception\\' => realpath(__DIR__.'/../../Exception'));
+        $symfonyUniversalClassLoader = new SymfonyUniversalClassLoader();
+        $symfonyUniversalClassLoader->registerPrefixes($prefixes);
+
+        $this->testHandleClassNotFound(
+            array(
+                'type' => 1,
+                'line' => 12,
+                'file' => 'foo.php',
+                'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
+            ),
+            "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+            array($symfonyUniversalClassLoader, 'loadClass')
+        );
+    }
+
     public function provideClassNotFoundData()
     {
-        $autoloader = new ComposerClassLoader();
-        $autoloader->add('Symfony\Component\Debug\Exception\\', realpath(__DIR__.'/../../Exception'));
-        $autoloader->add('Symfony_Component_Debug_Tests_Fixtures', realpath(__DIR__.'/../../Tests/Fixtures'));
+        $prefixes = array('Symfony\Component\Debug\Exception\\' => realpath(__DIR__.'/../../Exception'));
 
-        $debugClassLoader = new DebugClassLoader([$autoloader, 'loadClass']);
+        $symfonyAutoloader = new SymfonyClassLoader();
+        $symfonyAutoloader->addPrefixes($prefixes);
 
-        return [
-            [
-                [
-                    'type' => 1,
-                    'line' => 12,
-                    'file' => 'foo.php',
-                    'message' => 'Class "WhizBangFactory" not found',
-                ],
-                "/^Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement\?$/",
-            ],
-            [
-                [
+        $debugClassLoader = new DebugClassLoader(array($symfonyAutoloader, 'loadClass'));
+
+        return array(
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'WhizBangFactory\' not found',
-                ],
-                "/^Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement\?$/",
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement?",
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\WhizBangFactory\' not found',
-                ],
-                "/^Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
-            ],
-            [
-                [
-                    'type' => 1,
-                    'line' => 12,
-                    '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\?$/",
-            ],
-            [
-                [
-                    'type' => 1,
-                    'line' => 12,
-                    'file' => 'foo.php',
-                    'message' => 'Interface "Foo\\Bar\\WhizBangInterface" not found',
-                ],
-                "/^Attempted to load interface \"WhizBangInterface\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
-            ],
-            [
-                [
-                    'type' => 1,
-                    'line' => 12,
-                    'file' => 'foo.php',
-                    'message' => 'Trait "Foo\\Bar\\WhizBangTrait" not found',
-                ],
-                "/^Attempted to load trait \"WhizBangTrait\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'UndefinedFunctionException\' not found',
-                ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
-                [$debugClassLoader, 'loadClass'],
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'PEARClass\' not found',
-                ],
-                "/^Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"\?$/",
-                [$debugClassLoader, 'loadClass'],
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"?",
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
-                ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
-                [$debugClassLoader, 'loadClass'],
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
-                ],
-                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for \"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
-                [$autoloader, 'loadClass'],
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                array($symfonyAutoloader, 'loadClass'),
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     '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\"\?/",
-                [$debugClassLoader, 'loadClass'],
-            ],
-            [
-                [
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                array($debugClassLoader, 'loadClass'),
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     '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 */ },
-            ],
-        ];
+            ),
+        );
     }
 
     public function testCannotRedeclareClass()
@@ -209,16 +186,16 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
 
         require_once __DIR__.'/../FIXTURES2/REQUIREDTWICE.PHP';
 
-        $error = [
+        $error = array(
             'type' => 1,
             'line' => 12,
             'file' => 'foo.php',
             'message' => 'Class \'Foo\\Bar\\RequiredTwice\' not found',
-        ];
+        );
 
         $handler = new ClassNotFoundFatalErrorHandler();
         $exception = $handler->handleError($error, new FatalErrorException('', 0, $error['type'], $error['file'], $error['line']));
 
-        $this->assertInstanceOf(ClassNotFoundException::class, $exception);
+        $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
     }
 }

Tests/FatalErrorHandler/UndefinedFunctionFatalErrorHandlerTest.php

@@ -13,12 +13,8 @@ namespace Symfony\Component\Debug\Tests\FatalErrorHandler;
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Debug\Exception\FatalErrorException;
-use Symfony\Component\Debug\Exception\UndefinedFunctionException;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
 
-/**
- * @group legacy
- */
 class UndefinedFunctionFatalErrorHandlerTest extends TestCase
 {
     /**
@@ -29,8 +25,8 @@ class UndefinedFunctionFatalErrorHandlerTest extends TestCase
         $handler = new UndefinedFunctionFatalErrorHandler();
         $exception = $handler->handleError($error, new FatalErrorException('', 0, $error['type'], $error['file'], $error['line']));
 
-        $this->assertInstanceOf(UndefinedFunctionException::class, $exception);
-        // class names are case insensitive and PHP do not return the same
+        $this->assertInstanceOf('Symfony\Component\Debug\Exception\UndefinedFunctionException', $exception);
+        // class names are case insensitive and PHP/HHVM do not return the same
         $this->assertSame(strtolower($translatedMessage), strtolower($exception->getMessage()));
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
@@ -39,44 +35,44 @@ class UndefinedFunctionFatalErrorHandlerTest extends TestCase
 
     public function provideUndefinedFunctionData()
     {
-        return [
-            [
-                [
+        return array(
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined function test_namespaced_function()',
-                ],
+                ),
                 "Attempted to call function \"test_namespaced_function\" from the global namespace.\nDid you mean to call \"\\symfony\\component\\debug\\tests\\fatalerrorhandler\\test_namespaced_function\"?",
-            ],
-            [
-                [
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined function Foo\\Bar\\Baz\\test_namespaced_function()',
-                ],
+                ),
                 "Attempted to call function \"test_namespaced_function\" from namespace \"Foo\\Bar\\Baz\".\nDid you mean to call \"\\symfony\\component\\debug\\tests\\fatalerrorhandler\\test_namespaced_function\"?",
-            ],
-            [
-                [
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined function foo()',
-                ],
+                ),
                 'Attempted to call function "foo" from the global namespace.',
-            ],
-            [
-                [
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined function Foo\\Bar\\Baz\\foo()',
-                ],
+                ),
                 'Attempted to call function "foo" from namespace "Foo\Bar\Baz".',
-            ],
-        ];
+            ),
+        );
     }
 }
 

Tests/FatalErrorHandler/UndefinedMethodFatalErrorHandlerTest.php

@@ -13,12 +13,8 @@ namespace Symfony\Component\Debug\Tests\FatalErrorHandler;
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Debug\Exception\FatalErrorException;
-use Symfony\Component\Debug\Exception\UndefinedMethodException;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
 
-/**
- * @group legacy
- */
 class UndefinedMethodFatalErrorHandlerTest extends TestCase
 {
     /**
@@ -29,7 +25,7 @@ class UndefinedMethodFatalErrorHandlerTest extends TestCase
         $handler = new UndefinedMethodFatalErrorHandler();
         $exception = $handler->handleError($error, new FatalErrorException('', 0, $error['type'], $error['file'], $error['line']));
 
-        $this->assertInstanceOf(UndefinedMethodException::class, $exception);
+        $this->assertInstanceOf('Symfony\Component\Debug\Exception\UndefinedMethodException', $exception);
         $this->assertSame($translatedMessage, $exception->getMessage());
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
@@ -38,52 +34,43 @@ class UndefinedMethodFatalErrorHandlerTest extends TestCase
 
     public function provideUndefinedMethodData()
     {
-        return [
-            [
-                [
+        return array(
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined method SplObjectStorage::what()',
-                ],
+                ),
                 'Attempted to call an undefined method named "what" of class "SplObjectStorage".',
-            ],
-            [
-                [
-                    'type' => 1,
-                    'line' => 12,
-                    'file' => 'foo.php',
-                    'message' => 'Call to undefined method SplObjectStorage::()',
-                ],
-                'Attempted to call an undefined method named "" of class "SplObjectStorage".',
-            ],
-            [
-                [
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined method SplObjectStorage::walid()',
-                ],
+                ),
                 "Attempted to call an undefined method named \"walid\" of class \"SplObjectStorage\".\nDid you mean to call \"valid\"?",
-            ],
-            [
-                [
+            ),
+            array(
+                array(
                     'type' => 1,
                     'line' => 12,
                     'file' => 'foo.php',
                     'message' => 'Call to undefined method SplObjectStorage::offsetFet()',
-                ],
+                ),
                 "Attempted to call an undefined method named \"offsetFet\" of class \"SplObjectStorage\".\nDid you mean to call e.g. \"offsetGet\", \"offsetSet\" or \"offsetUnset\"?",
-            ],
-            [
-                [
-                    'type' => 1,
-                    'message' => 'Call to undefined method class@anonymous::test()',
-                    'file' => '/home/possum/work/symfony/test.php',
-                    'line' => 11,
-                ],
+            ),
+            array(
+                array(
+                  'type' => 1,
+                  'message' => 'Call to undefined method class@anonymous::test()',
+                  'file' => '/home/possum/work/symfony/test.php',
+                  'line' => 11,
+                ),
                 'Attempted to call an undefined method named "test" of class "class@anonymous".',
-            ],
-        ];
+            ),
+        );
     }
 }

Tests/Fixtures/AnnotatedClass.php

@@ -1,13 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class AnnotatedClass
-{
-    /**
-     * @deprecated
-     */
-    public function deprecatedMethod()
-    {
-    }
-}

Tests/Fixtures/ClassWithAnnotatedParameters.php

@@ -1,34 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class ClassWithAnnotatedParameters
-{
-    /**
-     * @param string $foo this is a foo parameter
-     */
-    public function fooMethod(string $foo)
-    {
-    }
-
-    /**
-     * @param string $bar parameter not implemented yet
-     */
-    public function barMethod(/* string $bar = null */)
-    {
-    }
-
-    /**
-     * @param Quz $quz parameter not implemented yet
-     */
-    public function quzMethod(/* Quz $quz = null */)
-    {
-    }
-
-    /**
-     * @param true $yes
-     */
-    public function isSymfony()
-    {
-    }
-}

Tests/Fixtures/DefinitionInEvaluatedCode.php

@@ -1,11 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-eval('
-    namespace Symfony\Component\Debug\Tests\Fixtures;
-
-    class DefinitionInEvaluatedCode
-    {
-    }
-');

Tests/Fixtures/ErrorHandlerThatUsesThePreviousOne.php

@@ -1,22 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class ErrorHandlerThatUsesThePreviousOne
-{
-    private static $previous;
-
-    public static function register()
-    {
-        $handler = new static();
-
-        self::$previous = set_error_handler([$handler, 'handleError']);
-
-        return $handler;
-    }
-
-    public function handleError()
-    {
-        return \call_user_func_array(self::$previous, \func_get_args());
-    }
-}

Tests/Fixtures/ExtendedFinalMethod.php

@@ -1,19 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class ExtendedFinalMethod extends FinalMethod
-{
-    use FinalMethod2Trait;
-
-    /**
-     * {@inheritdoc}
-     */
-    public function finalMethod()
-    {
-    }
-
-    public function anotherMethod()
-    {
-    }
-}

Tests/Fixtures/FinalClasses.php

@@ -1,84 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @final since version 3.3.
- */
-class FinalClass1
-{
-    // simple comment
-}
-
-/**
- * @final
- */
-class FinalClass2
-{
-    // no comment
-}
-
-/**
- * @final comment with @@@ and ***
- *
- * @author John Doe
- */
-class FinalClass3
-{
-    // with comment and a tag after
-}
-
-/**
- * @final
- *
- * @author John Doe
- */
-class FinalClass4
-{
-    // without comment and a tag after
-}
-
-/**
- * @author John Doe
- *
- * @final multiline
- * comment
- */
-class FinalClass5
-{
-    // with comment and a tag before
-}
-
-/**
- * @author John Doe
- *
- * @final
- */
-class FinalClass6
-{
-    // without comment and a tag before
-}
-
-/**
- * @author John Doe
- *
- * @final another
- *        multiline comment...
- *
- * @return string
- */
-class FinalClass7
-{
-    // with comment and a tag before and after
-}
-
-/**
- * @author John Doe
- * @final
- *
- * @return string
- */
-class FinalClass8
-{
-    // without comment and a tag before and after
-}

Tests/Fixtures/FinalMethod.php

@@ -1,26 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class FinalMethod
-{
-    /**
-     * @final
-     */
-    public function finalMethod()
-    {
-    }
-
-    /**
-     * @final
-     *
-     * @return int
-     */
-    public function finalMethod2()
-    {
-    }
-
-    public function anotherMethod()
-    {
-    }
-}

Tests/Fixtures/FinalMethod2Trait.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-trait FinalMethod2Trait
-{
-    public function finalMethod2()
-    {
-    }
-}

Tests/Fixtures/InterfaceWithAnnotatedParameters.php

@@ -1,27 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * Ensures a deprecation is triggered when a new parameter is not declared in child classes.
- */
-interface InterfaceWithAnnotatedParameters
-{
-    /**
-     * @param bool $matrix
-     */
-    public function whereAmI();
-
-    /**
-     * @param       $noType
-     * @param callable(\Throwable|null $reason, mixed $value) $callback and a comment
-     * about this great param
-     * @param string                                          $param (comment with $dollar)
-     * @param $defined
-     * @param  callable  ($a,  $b)  $anotherOne
-     * @param callable (mixed $a, $b) $definedCallable
-     * @param Type$WithDollarIsStillAType $ccc
-     * @param \JustAType
-     */
-    public function iAmHere();
-}

Tests/Fixtures/InternalClass.php

@@ -1,15 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @internal
- */
-class InternalClass
-{
-    use InternalTrait2;
-
-    public function usedInInternalClass()
-    {
-    }
-}

Tests/Fixtures/InternalInterface.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @internal
- */
-interface InternalInterface
-{
-}

Tests/Fixtures/InternalTrait.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @internal
- */
-trait InternalTrait
-{
-}

Tests/Fixtures/InternalTrait2.php

@@ -1,23 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @internal
- */
-trait InternalTrait2
-{
-    /**
-     * @internal
-     */
-    public function internalMethod()
-    {
-    }
-
-    /**
-     * @internal but should not trigger a deprecation
-     */
-    public function usedInInternalClass()
-    {
-    }
-}

Tests/Fixtures/LoggerThatSetAnErrorHandler.php

@@ -1,15 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-use Symfony\Component\Debug\BufferingLogger;
-
-class LoggerThatSetAnErrorHandler extends BufferingLogger
-{
-    public function log($level, $message, array $context = []): void
-    {
-        set_error_handler('is_string');
-        parent::log($level, $message, $context);
-        restore_error_handler();
-    }
-}

Tests/Fixtures/NonDeprecatedInterface.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-interface NonDeprecatedInterface extends DeprecatedInterface
-{
-}

Tests/Fixtures/SubClassWithAnnotatedParameters.php

@@ -1,32 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class SubClassWithAnnotatedParameters extends ClassWithAnnotatedParameters implements InterfaceWithAnnotatedParameters
-{
-    use TraitWithAnnotatedParameters;
-
-    public function fooMethod(string $foo)
-    {
-    }
-
-    public function barMethod($bar = null)
-    {
-    }
-
-    public function quzMethod()
-    {
-    }
-
-    public function whereAmI()
-    {
-    }
-
-    /**
-     * @param                      $defined
-     * @param Type\Does\Not\Matter $definedCallable
-     */
-    public function iAmHere()
-    {
-    }
-}

Tests/Fixtures/ToStringThrower.php

@@ -1,24 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-class ToStringThrower
-{
-    private $exception;
-
-    public function __construct(\Exception $e)
-    {
-        $this->exception = $e;
-    }
-
-    public function __toString()
-    {
-        try {
-            throw $this->exception;
-        } catch (\Exception $e) {
-            // Using user_error() here is on purpose so we do not forget
-            // that this alias also should work alongside with trigger_error().
-            return trigger_error($e, E_USER_ERROR);
-        }
-    }
-}

Tests/Fixtures/TraitWithAnnotatedParameters.php

@@ -1,13 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-trait TraitWithAnnotatedParameters
-{
-    /**
-     * `@param` annotations in traits are not parsed.
-     */
-    public function isSymfony()
-    {
-    }
-}

Tests/Fixtures/TraitWithInternalMethod.php

@@ -1,13 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-trait TraitWithInternalMethod
-{
-    /**
-     * @internal
-     */
-    public function foo()
-    {
-    }
-}

Tests/Fixtures/VirtualClass.php

@@ -1,11 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @method string classMethod()
- */
-class VirtualClass
-{
-    use VirtualTrait;
-}

Tests/Fixtures/VirtualClassMagicCall.php

@@ -1,18 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @method string magicMethod()
- * @method static string staticMagicMethod()
- */
-class VirtualClassMagicCall
-{
-    public static function __callStatic($name, $arguments)
-    {
-    }
-
-    public function __call($name, $arguments)
-    {
-    }
-}

Tests/Fixtures/VirtualInterface.php

@@ -1,34 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @method string interfaceMethod()
- * @method        sameLineInterfaceMethod($arg)
- * @method sameLineInterfaceMethodNoBraces
- *
- * Ignored
- * @method
- * @method
- *
- * Not ignored
- * @method newLineInterfaceMethod() Some description!
- * @method \stdClass newLineInterfaceMethodNoBraces Description
- *
- * Invalid
- * @method unknownType invalidInterfaceMethod()
- * @method unknownType|string invalidInterfaceMethodNoBraces
- *
- * Complex
- * @method              complexInterfaceMethod($arg, ...$args)
- * @method string[]|int complexInterfaceMethodTyped($arg, int ...$args) Description ...
- *
- * Static
- * @method static Foo&Bar staticMethod()
- * @method static staticMethodNoBraces
- * @method static \stdClass staticMethodTyped(int $arg) Description
- * @method static \stdClass[] staticMethodTypedNoBraces
- */
-interface VirtualInterface
-{
-}

Tests/Fixtures/VirtualSubInterface.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @method string subInterfaceMethod()
- */
-interface VirtualSubInterface extends VirtualInterface
-{
-}

Tests/Fixtures/VirtualTrait.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-/**
- * @method string traitMethod()
- */
-trait VirtualTrait
-{
-}

Tests/HeaderMock.php

@@ -25,14 +25,14 @@ namespace Symfony\Component\Debug\Tests;
 
 function testHeader()
 {
-    static $headers = [];
+    static $headers = array();
 
-    if (!$h = \func_get_args()) {
+    if (!$h = func_get_args()) {
         $h = $headers;
-        $headers = [];
+        $headers = array();
 
         return $h;
     }
 
-    $headers[] = \func_get_args();
+    $headers[] = func_get_args();
 }

Tests/MockExceptionHandler.php

@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Tests;
+
+use Symfony\Component\Debug\ExceptionHandler;
+
+class MockExceptionHandler extends ExceptionHandler
+{
+    public $e;
+
+    public function handle(\Exception $e)
+    {
+        $this->e = $e;
+    }
+}

Tests/phpt/debug_class_loader.phpt

@@ -1,28 +0,0 @@
---TEST--
-Test DebugClassLoader with previously loaded parents
---FILE--
-<?php
-
-namespace Symfony\Component\Debug\Tests\Fixtures;
-
-use Symfony\Component\Debug\DebugClassLoader;
-
-$vendor = __DIR__;
-while (!file_exists($vendor.'/vendor')) {
-    $vendor = \dirname($vendor);
-}
-require $vendor.'/vendor/autoload.php';
-
-class_exists(FinalMethod::class);
-
-set_error_handler(function ($type, $msg) { echo $msg, "\n"; });
-
-DebugClassLoader::enable();
-
-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

@@ -1,7 +1,5 @@
 --TEST--
 Test catching fatal errors when handlers are nested
---INI--
-display_errors=0
 --FILE--
 <?php
 
@@ -9,7 +7,7 @@ namespace Symfony\Component\Debug;
 
 $vendor = __DIR__;
 while (!file_exists($vendor.'/vendor')) {
-    $vendor = \dirname($vendor);
+    $vendor = dirname($vendor);
 }
 require $vendor.'/vendor/autoload.php';
 
@@ -26,7 +24,7 @@ if (true) {
 
 ?>
 --EXPECTF--
-%A
+Fatal error: Class 'Symfony\Component\Debug\missing' not found in %s on line %d
 object(Symfony\Component\Debug\Exception\ClassNotFoundException)#%d (8) {
   ["message":protected]=>
   string(131) "Attempted to load class "missing" from namespace "Symfony\Component\Debug".

Tests/phpt/exception_rethrown.phpt

@@ -7,14 +7,14 @@ namespace Symfony\Component\Debug;
 
 $vendor = __DIR__;
 while (!file_exists($vendor.'/vendor')) {
-    $vendor = \dirname($vendor);
+    $vendor = dirname($vendor);
 }
 require $vendor.'/vendor/autoload.php';
 
 if (true) {
     class TestLogger extends \Psr\Log\AbstractLogger
     {
-        public function log($level, $message, array $context = []): void
+        public function log($level, $message, array $context = array())
         {
             echo $message, "\n";
         }

Tests/phpt/fatal_with_nested_handlers.phpt

@@ -7,7 +7,7 @@ namespace Symfony\Component\Debug;
 
 $vendor = __DIR__;
 while (!file_exists($vendor.'/vendor')) {
-    $vendor = \dirname($vendor);
+    $vendor = dirname($vendor);
 }
 require $vendor.'/vendor/autoload.php';
 
@@ -17,14 +17,14 @@ ini_set('display_errors', 0);
 $eHandler = set_error_handler('var_dump');
 $xHandler = set_exception_handler('var_dump');
 
-var_dump([
+var_dump(array(
     $eHandler[0] === $xHandler[0] ? 'Error and exception handlers do match' : 'Error and exception handlers are different',
-]);
+));
 
 $eHandler[0]->setExceptionHandler('print_r');
 
 if (true) {
-    class Broken implements \JsonSerializable
+    class Broken implements \Serializable
     {
     }
 }
@@ -35,9 +35,8 @@ array(1) {
   [0]=>
   string(37) "Error and exception handlers do match"
 }
-%A
-object(Symfony\Component\Debug\Exception\FatalErrorException)#%d (%d) {
+object(Symfony\Component\Debug\Exception\FatalErrorException)#%d (8) {
   ["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)"
+  string(199) "Error: Class Symfony\Component\Debug\Broken contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Serializable::serialize, Serializable::unserialize)"
 %a
 }

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "symfony/debug",
     "type": "library",
-    "description": "Provides tools to ease debugging PHP code",
+    "description": "Symfony Debug Component",
     "keywords": [],
     "homepage": "https://symfony.com",
     "license": "MIT",
@@ -16,14 +16,15 @@
         }
     ],
     "require": {
-        "php": ">=7.1.3",
-        "psr/log": "^1|^2|^3"
+        "php": ">=5.3.9",
+        "psr/log": "~1.0"
     },
     "conflict": {
-        "symfony/http-kernel": "<3.4"
+        "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
     },
     "require-dev": {
-        "symfony/http-kernel": "^3.4|^4.0|^5.0"
+        "symfony/class-loader": "~2.2",
+        "symfony/http-kernel": "~2.3.24|~2.5.9|^2.6.2"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Debug\\": "" },
@@ -31,5 +32,10 @@
             "/Tests/"
         ]
     },
-    "minimum-stability": "dev"
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.7-dev"
+        }
+    }
 }

phpunit.xml.dist

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.1/phpunit.xsd"
          backupGlobals="false"
          colors="true"
          bootstrap="vendor/autoload.php"
@@ -14,7 +14,10 @@
 
     <testsuites>
         <testsuite name="Symfony Debug Component Test Suite">
-            <directory suffix=".phpt">./Tests/</directory>
+            <directory>./Tests/</directory>
+        </testsuite>
+        <testsuite name="Symfony Debug Extension Test Suite">
+            <directory suffix=".phpt">./Resources/ext/tests/</directory>
         </testsuite>
     </testsuites>