Vendor lock

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2023-06-16 02:08:47 +00:00
parent 7933e70e90
commit 3351b92dd6
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<?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;
}
}

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vendor/symfony/debug/CHANGELOG.md vendored Normal file
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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
2.6.0
-----
* 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
2.4.0
-----
* added a DebugClassLoader able to wrap any autoloader providing a findFile method
* improved error messages for not found classes and functions
2.3.0
-----
* added the component

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<?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;
@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
{
private static $enabled = false;
/**
* Enables the debug tools.
*
* This method registers an error handler and an exception handler.
*
* @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, $displayErrors = true)
{
if (static::$enabled) {
return;
}
static::$enabled = true;
if (null !== $errorReportingLevel) {
error_reporting($errorReportingLevel);
} else {
error_reporting(E_ALL);
}
if (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true)) {
ini_set('display_errors', 0);
ExceptionHandler::register();
} elseif ($displayErrors && (!filter_var(ini_get('log_errors'), FILTER_VALIDATE_BOOLEAN) || ini_get('error_log'))) {
// CLI - display errors only if they're not already logged to STDERR
ini_set('display_errors', 1);
}
if ($displayErrors) {
ErrorHandler::register(new ErrorHandler(new BufferingLogger()));
} else {
ErrorHandler::register()->throwAt(0, true);
}
DebugClassLoader::enable();
}
}

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<?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 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.
*
* The ClassLoader will wrap all registered autoloaders
* and will throw an exception if a file is found but does
* not declare the class.
*
* @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 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 = [];
public function __construct(callable $classLoader)
{
$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);
$dir = substr($file, 0, 1 + $i);
$file = substr($file, 1 + $i);
$test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file);
$test = realpath($dir.$test);
if (false === $test || false === $i) {
// filesystem is case sensitive
self::$caseCheck = 0;
} 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')) {
// on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters
self::$caseCheck = 2;
} else {
// filesystem case checks failed, fallback to disabling them
self::$caseCheck = 0;
}
}
}
/**
* Gets the wrapped class loader.
*
* @return callable The wrapped class loader
*/
public function getClassLoader()
{
return $this->classLoader;
}
/**
* Wraps all autoloaders.
*/
public static function enable()
{
// Ensures we don't hit https://bugs.php.net/42098
class_exists('Symfony\Component\Debug\ErrorHandler');
class_exists('Psr\Log\LogLevel');
if (!\is_array($functions = spl_autoload_functions())) {
return;
}
foreach ($functions as $function) {
spl_autoload_unregister($function);
}
foreach ($functions as $function) {
if (!\is_array($function) || !$function[0] instanceof self) {
$function = [new static($function), 'loadClass'];
}
spl_autoload_register($function);
}
}
/**
* Disables the wrapping.
*/
public static function disable()
{
if (!\is_array($functions = spl_autoload_functions())) {
return;
}
foreach ($functions as $function) {
spl_autoload_unregister($function);
}
foreach ($functions as $function) {
if (\is_array($function) && $function[0] instanceof self) {
$function = $function[0]->getClassLoader();
}
spl_autoload_register($function);
}
}
/**
* @return string|null
*/
public function findFile($class)
{
return $this->isFinder ? $this->classLoader[0]->findFile($class) ?: null : null;
}
/**
* Loads the given class or interface.
*
* @param string $class The name of the class
*
* @throws \RuntimeException
*/
public function loadClass($class)
{
$e = error_reporting(error_reporting() | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
try {
if ($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 $file) {
return;
}
} else {
($this->classLoader)($class);
$file = false;
}
} finally {
error_reporting($e);
}
$this->checkClass($class, $file);
}
private function checkClass(string $class, string $file = null)
{
$exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
if (null !== $file && $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));
}
$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 $method) {
list($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][$method->name])) {
list($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])) {
list($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 list(, $parameterType, $parameterName)) {
if (!isset($definedParameters[$parameterName])) {
$parameterType = trim($parameterType);
self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its %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];
} else {
$dir = getcwd();
if (!@chdir($real)) {
return $real.$file;
}
$real = getcwd().'/';
chdir($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]) {
}
$k = substr($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] = $f;
}
}
}
self::$darwinCache[$kDir][1] = $dirFiles;
}
return $real.$dirFiles[$kFile];
}
/**
* `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[$interface]);
}
}
foreach ($ownInterfaces as $interface) {
foreach (class_implements($interface) as $interface) {
unset($ownInterfaces[$interface]);
}
}
return $ownInterfaces;
}
}

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<?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\LoggerInterface;
use Psr\Log\LogLevel;
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);
/**
* A generic ErrorHandler for the PHP engine.
*
* Provides five bit fields that control how errors are handled:
* - 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
* - screamedErrors: never @-silenced errors
*
* Each error level can be logged by a dedicated PSR-3 logger object.
* Screaming only applies to logging.
* Throwing takes precedence over logging.
* Uncaught exceptions are logged as E_ERROR.
* E_DEPRECATED and E_USER_DEPRECATED levels never throw.
* E_RECOVERABLE_ERROR and E_USER_ERROR levels always throw.
* Non catchable errors that can be detected at shutdown time are logged when the scream bit field allows so.
* As errors have a performance cost, repeated errors are all logged, so that the developer
* 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',
];
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 $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 $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 $exitCode = 0;
/**
* Registers the error handler.
*
* @param self|null $handler The handler to register
* @param bool $replace Whether to replace or not any existing handler
*
* @return self The registered error handler
*/
public static function register(self $handler = null, $replace = true)
{
if (null === self::$reservedMemory) {
self::$reservedMemory = str_repeat('x', 10240);
register_shutdown_function(__CLASS__.'::handleFatalError');
}
if ($handlerIsNew = null === $handler) {
$handler = new static();
}
if (null === $prev = set_error_handler([$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);
$handler->isRoot = true;
}
if ($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];
} else {
$handlerIsRegistered = true;
}
if (\is_array($prev = set_exception_handler([$handler, 'handleException'])) && $prev[0] instanceof self) {
restore_exception_handler();
if (!$handlerIsRegistered) {
$handler = $prev[0];
} elseif ($handler !== $prev[0] && $replace) {
set_exception_handler([$handler, 'handleException']);
$p = $prev[0]->setExceptionHandler(null);
$handler->setExceptionHandler($p);
$prev[0]->setExceptionHandler($p);
}
} else {
$handler->setExceptionHandler($prev);
}
$handler->throwAt(E_ALL & $handler->thrownErrors, true);
return $handler;
}
public function __construct(BufferingLogger $bootstrappingLogger = null)
{
if ($bootstrappingLogger) {
$this->bootstrappingLogger = $bootstrappingLogger;
$this->setDefaultLogger($bootstrappingLogger);
}
$this->traceReflector = new \ReflectionProperty('Exception', '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
*/
public function setDefaultLogger(LoggerInterface $logger, $levels = E_ALL, $replace = false)
{
$loggers = [];
if (\is_array($levels)) {
foreach ($levels as $type => $logLevel) {
if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] === $this->bootstrappingLogger) {
$loggers[$type] = [$logger, $logLevel];
}
}
} else {
if (null === $levels) {
$levels = E_ALL;
}
foreach ($this->loggers as $type => $log) {
if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
$log[0] = $logger;
$loggers[$type] = $log;
}
}
}
$this->setLoggers($loggers);
}
/**
* Sets a logger for each error level.
*
* @param array $loggers Error levels to [LoggerInterface|null, LogLevel::*] map
*
* @return array The previous map
*
* @throws \InvalidArgumentException
*/
public function setLoggers(array $loggers)
{
$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 (null === $log[0]) {
$this->loggedErrors &= ~$type;
} elseif ($log[0] instanceof LoggerInterface) {
$this->loggedErrors |= $type;
} else {
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;
}
/**
* Sets a user exception handler.
*
* @param callable $handler A handler that will be called on Exception
*
* @return callable|null The previous exception handler
*/
public function setExceptionHandler(callable $handler = null)
{
$prev = $this->exceptionHandler;
$this->exceptionHandler = $handler;
return $prev;
}
/**
* Sets the PHP error levels that throw an exception when a PHP error occurs.
*
* @param int $levels A bit field of E_* constants for thrown errors
* @param bool $replace Replace or amend the previous value
*
* @return int The previous value
*/
public function throwAt($levels, $replace = false)
{
$prev = $this->thrownErrors;
$this->thrownErrors = ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
if (!$replace) {
$this->thrownErrors |= $prev;
}
$this->reRegister($prev | $this->loggedErrors);
return $prev;
}
/**
* Sets the PHP error levels for which local variables are preserved.
*
* @param int $levels A bit field of E_* constants for scoped errors
* @param bool $replace Replace or amend the previous value
*
* @return int The previous value
*/
public function scopeAt($levels, $replace = false)
{
$prev = $this->scopedErrors;
$this->scopedErrors = (int) $levels;
if (!$replace) {
$this->scopedErrors |= $prev;
}
return $prev;
}
/**
* Sets the PHP error levels for which the stack trace is preserved.
*
* @param int $levels A bit field of E_* constants for traced errors
* @param bool $replace Replace or amend the previous value
*
* @return int The previous value
*/
public function traceAt($levels, $replace = false)
{
$prev = $this->tracedErrors;
$this->tracedErrors = (int) $levels;
if (!$replace) {
$this->tracedErrors |= $prev;
}
return $prev;
}
/**
* Sets the error levels where the @-operator is ignored.
*
* @param int $levels A bit field of E_* constants for screamed errors
* @param bool $replace Replace or amend the previous value
*
* @return int The previous value
*/
public function screamAt($levels, $replace = false)
{
$prev = $this->screamedErrors;
$this->screamedErrors = (int) $levels;
if (!$replace) {
$this->screamedErrors |= $prev;
}
return $prev;
}
/**
* Re-registers as a PHP error handler if levels changed.
*/
private function reRegister(int $prev)
{
if ($prev !== $this->thrownErrors | $this->loggedErrors) {
$handler = set_error_handler('var_dump');
$handler = \is_array($handler) ? $handler[0] : null;
restore_error_handler();
if ($handler === $this) {
restore_error_handler();
if ($this->isRoot) {
set_error_handler([$this, 'handleError'], $this->thrownErrors | $this->loggedErrors);
} else {
set_error_handler([$this, 'handleError']);
}
}
}
}
/**
* Handles errors by filtering then logging them according to the configured bit fields.
*
* @param int $type One of the E_* constants
* @param string $message
* @param string $file
* @param int $line
*
* @return bool Returns false when no handling happens so that the PHP engine can handle the error itself
*
* @throws \ErrorException When $this->thrownErrors requests so
*
* @internal
*/
public function handleError($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;
$log = $this->loggedErrors & $type;
$throw = $this->thrownErrors & $type & $level;
$type &= $level | $this->screamedErrors;
if (!$type || (!$log && !$throw)) {
return !$silenced && $type && $log;
}
$scope = $this->scopedErrors & $type;
if (4 < $numArgs = \func_num_args()) {
$context = $scope ? (func_get_arg(4) ?: []) : [];
} else {
$context = [];
}
if (isset($context['GLOBALS']) && $scope) {
$e = $context; // Whatever the signature of the method,
unset($e['GLOBALS'], $context); // $context is always a reference in 5.3
$context = $e;
}
if (false !== strpos($message, "class@anonymous\0")) {
$logMessage = $this->levels[$type].': '.(new FlattenException())->setMessage($message)->getMessage();
} else {
$logMessage = $this->levels[$type].': '.$message;
}
if (null !== self::$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 = [];
$errorAsException = null;
}
if (100 < ++self::$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, $line);
if ($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, []);
$backtrace = [];
}
}
if ($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 $e get through the __toString() barrier.
foreach ($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;
}
}
}
throw $errorAsException;
}
if ($this->isRecursive) {
$log = 0;
} else {
if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
$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 {
$this->isRecursive = false;
if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
set_error_handler($currentErrorHandler);
}
}
}
return !$silenced && $type && $log;
}
/**
* Handles an exception by logging then forwarding it to another handler.
*
* @param \Exception|\Throwable $exception An exception to handle
* @param array $error An array as returned by error_get_last()
*
* @internal
*/
public function handleException($exception, array $error = null)
{
if (null === $error) {
self::$exitCode = 255;
}
if (!$exception instanceof \Exception) {
$exception = new FatalThrowableError($exception);
}
$type = $exception instanceof FatalErrorException ? $exception->getSeverity() : E_ERROR;
$handlerException = null;
if (($this->loggedErrors & $type) || $exception instanceof FatalThrowableError) {
if (false !== strpos($message = $exception->getMessage(), "class@anonymous\0")) {
$message = (new FlattenException())->setMessage($message)->getMessage();
}
if ($exception instanceof FatalErrorException) {
if ($exception instanceof FatalThrowableError) {
$error = [
'type' => $type,
'message' => $message,
'file' => $exception->getFile(),
'line' => $exception->getLine(),
];
} else {
$message = 'Fatal '.$message;
}
} elseif ($exception instanceof \ErrorException) {
$message = 'Uncaught '.$message;
} else {
$message = 'Uncaught Exception: '.$message;
}
}
if ($this->loggedErrors & $type) {
try {
$this->loggers[$type][0]->log($this->loggers[$type][1], $message, ['exception' => $exception]);
} catch (\Throwable $handlerException) {
}
}
if ($exception instanceof FatalErrorException && !$exception instanceof OutOfMemoryException && $error) {
foreach ($this->getFatalErrorHandlers() as $handler) {
if ($e = $handler->handleError($error, $exception)) {
$exception = $e;
break;
}
}
}
$exceptionHandler = $this->exceptionHandler;
$this->exceptionHandler = null;
try {
if (null !== $exceptionHandler) {
$exceptionHandler($exception);
return;
}
$handlerException = $handlerException ?: $exception;
} catch (\Throwable $handlerException) {
}
if ($exception === $handlerException) {
self::$reservedMemory = null; // Disable the fatal error handler
throw $exception; // Give back $exception to the native handler
}
$this->handleException($handlerException);
}
/**
* Shutdown registered function for handling PHP fatal errors.
*
* @param array $error An array as returned by error_get_last()
*
* @internal
*/
public static function handleFatalError(array $error = null)
{
if (null === self::$reservedMemory) {
return;
}
$handler = self::$reservedMemory = null;
$handlers = [];
$previousHandler = null;
$sameHandlerLimit = 10;
while (!\is_array($handler) || !$handler[0] instanceof self) {
$handler = set_exception_handler('var_dump');
restore_exception_handler();
if (!$handler) {
break;
}
restore_exception_handler();
if ($handler !== $previousHandler) {
array_unshift($handlers, $handler);
$previousHandler = $handler;
} elseif (0 === --$sameHandlerLimit) {
$handler = null;
break;
}
}
foreach ($handlers as $h) {
set_exception_handler($h);
}
if (!$handler) {
return;
}
if ($handler !== $h) {
$handler[0]->setExceptionHandler($h);
}
$handler = $handler[0];
$handlers = [];
if ($exit = null === $error) {
$error = error_get_last();
}
if ($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);
$trace = isset($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 !== $exception) {
self::$exitCode = 255;
$handler->handleException($exception, $error);
}
} catch (FatalErrorException $e) {
// Ignore this re-throw
}
if ($exit && self::$exitCode) {
$exitCode = self::$exitCode;
register_shutdown_function('register_shutdown_function', function () use ($exitCode) { exit($exitCode); });
}
}
/**
* Gets the fatal error handlers.
*
* Override this method if you want to define more fatal error handlers.
*
* @return FatalErrorHandlerInterface[] An array of FatalErrorHandlerInterface
*/
protected function getFatalErrorHandlers()
{
return [
new UndefinedFunctionFatalErrorHandler(),
new UndefinedMethodFatalErrorHandler(),
new ClassNotFoundFatalErrorHandler(),
];
}
/**
* Cleans the trace by removing function arguments and the frames added by the error handler and DebugClassLoader.
*/
private function cleanTrace(array $backtrace, int $type, string $file, int $line, bool $throw): array
{
$lightTrace = $backtrace;
for ($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']);
}
}
return $lightTrace;
}
}

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<?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.', 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)
{
parent::__construct(
$message,
$previous->getCode(),
$previous->getSeverity(),
$previous->getFile(),
$previous->getLine(),
null,
true,
null,
$previous->getPrevious()
);
$this->setTrace($previous->getTrace());
}
}

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<?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.', FatalErrorException::class, \Symfony\Component\ErrorHandler\Error\FatalError::class), E_USER_DEPRECATED);
/**
* Fatal Error Exception.
*
* @author Konstanton Myakshin <koc-dp@yandex.ru>
*
* @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\Error\FatalError instead.
*/
class FatalErrorException extends \ErrorException
{
public function __construct(string $message, int $code, int $severity, string $filename, int $lineno, int $traceOffset = null, bool $traceArgs = true, array $trace = null, \Throwable $previous = null)
{
parent::__construct($message, $code, $severity, $filename, $lineno, $previous);
if (null !== $trace) {
if (!$traceArgs) {
foreach ($trace as &$frame) {
unset($frame['args'], $frame['this'], $frame);
}
}
$this->setTrace($trace);
} elseif (null !== $traceOffset) {
if (\function_exists('xdebug_get_function_stack')) {
$trace = xdebug_get_function_stack();
if (0 < $traceOffset) {
array_splice($trace, -$traceOffset);
}
foreach ($trace as &$frame) {
if (!isset($frame['type'])) {
// XDebug pre 2.1.1 doesn't currently set the call type key http://bugs.xdebug.org/view.php?id=695
if (isset($frame['class'])) {
$frame['type'] = '::';
}
} elseif ('dynamic' === $frame['type']) {
$frame['type'] = '->';
} elseif ('static' === $frame['type']) {
$frame['type'] = '::';
}
// XDebug also has a different name for the parameters array
if (!$traceArgs) {
unset($frame['params'], $frame['args']);
} elseif (isset($frame['params']) && !isset($frame['args'])) {
$frame['args'] = $frame['params'];
unset($frame['params']);
}
}
unset($frame);
$trace = array_reverse($trace);
} else {
$trace = [];
}
$this->setTrace($trace);
}
}
protected function setTrace($trace)
{
$traceReflector = new \ReflectionProperty('Exception', 'trace');
$traceReflector->setAccessible(true);
$traceReflector->setValue($this, $trace);
}
}

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<?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.', 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) {
$severity = E_PARSE;
} elseif ($e instanceof \TypeError) {
$severity = E_RECOVERABLE_ERROR;
} else {
$severity = E_ERROR;
}
\ErrorException::__construct(
$e->getMessage(),
$e->getCode(),
$severity,
$e->getFile(),
$e->getLine(),
$e->getPrevious()
);
$this->setTrace($e->getTrace());
}
public function getOriginalClassName(): string
{
return $this->originalClassName;
}
}

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<?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;
use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
/**
* FlattenException wraps a PHP Error or 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.
*/
class FlattenException
{
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 = [])
{
$e = new static();
$e->setMessage($exception->getMessage());
$e->setCode($exception->getCode());
if ($exception instanceof HttpExceptionInterface) {
$statusCode = $exception->getStatusCode();
$headers = array_merge($headers, $exception->getHeaders());
} elseif ($exception instanceof RequestExceptionInterface) {
$statusCode = 400;
}
if (null === $statusCode) {
$statusCode = 500;
}
$e->setStatusCode($statusCode);
$e->setHeaders($headers);
$e->setTraceFromThrowable($exception);
$e->setClass($exception instanceof FatalThrowableError ? $exception->getOriginalClassName() : \get_class($exception));
$e->setFile($exception->getFile());
$e->setLine($exception->getLine());
$previous = $exception->getPrevious();
if ($previous instanceof \Throwable) {
$e->setPrevious(static::createFromThrowable($previous));
}
return $e;
}
public function toArray()
{
$exceptions = [];
foreach (array_merge([$this], $this->getAllPrevious()) as $exception) {
$exceptions[] = [
'message' => $exception->getMessage(),
'class' => $exception->getClass(),
'trace' => $exception->getTrace(),
];
}
return $exceptions;
}
public function getStatusCode()
{
return $this->statusCode;
}
/**
* @return $this
*/
public function setStatusCode($code)
{
$this->statusCode = $code;
return $this;
}
public function getHeaders()
{
return $this->headers;
}
/**
* @return $this
*/
public function setHeaders(array $headers)
{
$this->headers = $headers;
return $this;
}
public function getClass()
{
return $this->class;
}
/**
* @return $this
*/
public function setClass($class)
{
$this->class = 'c' === $class[0] && 0 === strpos($class, "class@anonymous\0") ? get_parent_class($class).'@anonymous' : $class;
return $this;
}
public function getFile()
{
return $this->file;
}
/**
* @return $this
*/
public function setFile($file)
{
$this->file = $file;
return $this;
}
public function getLine()
{
return $this->line;
}
/**
* @return $this
*/
public function setLine($line)
{
$this->line = $line;
return $this;
}
public function getMessage()
{
return $this->message;
}
/**
* @return $this
*/
public function setMessage($message)
{
if (false !== strpos($message, "class@anonymous\0")) {
$message = preg_replace_callback('/class@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)[0-9a-fA-F]++/', function ($m) {
return class_exists($m[0], false) ? get_parent_class($m[0]).'@anonymous' : $m[0];
}, $message);
}
$this->message = $message;
return $this;
}
public function getCode()
{
return $this->code;
}
/**
* @return $this
*/
public function setCode($code)
{
$this->code = $code;
return $this;
}
public function getPrevious()
{
return $this->previous;
}
/**
* @return $this
*/
public function setPrevious(self $previous)
{
$this->previous = $previous;
return $this;
}
public function getAllPrevious()
{
$exceptions = [];
$e = $this;
while ($e = $e->getPrevious()) {
$exceptions[] = $e;
}
return $exceptions;
}
public function getTrace()
{
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);
}
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[] = [
'namespace' => '',
'short_class' => '',
'class' => '',
'type' => '',
'function' => '',
'file' => $file,
'line' => $line,
'args' => [],
];
foreach ($trace as $entry) {
$class = '';
$namespace = '';
if (isset($entry['class'])) {
$parts = explode('\\', $entry['class']);
$class = array_pop($parts);
$namespace = implode('\\', $parts);
}
$this->trace[] = [
'namespace' => $namespace,
'short_class' => $class,
'class' => isset($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']) : [],
];
}
return $this;
}
private function flattenArgs(array $args, int $level = 0, int &$count = 0): array
{
$result = [];
foreach ($args as $key => $value) {
if (++$count > 1e4) {
return ['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)) {
if ($level > 10) {
$result[$key] = ['array', '*DEEP NESTED ARRAY*'];
} else {
$result[$key] = ['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)];
} else {
$result[$key] = ['string', (string) $value];
}
}
return $result;
}
private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value): string
{
$array = new \ArrayObject($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);
}
}

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<?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.', 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
{
}

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<?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,
];
}
}

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<?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.', 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)
{
parent::__construct(
$message,
$previous->getCode(),
$previous->getSeverity(),
$previous->getFile(),
$previous->getLine(),
null,
true,
null,
$previous->getPrevious()
);
$this->setTrace($previous->getTrace());
}
}

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<?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.', 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)
{
parent::__construct(
$message,
$previous->getCode(),
$previous->getSeverity(),
$previous->getFile(),
$previous->getLine(),
null,
true,
null,
$previous->getPrevious()
);
$this->setTrace($previous->getTrace());
}
}

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<?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\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);
/**
* 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
{
/**
* {@inheritdoc}
*/
public function handleError(array $error, FatalErrorException $exception)
{
$messageLen = \strlen($error['message']);
$notFoundSuffix = '\' not found';
$notFoundSuffixLen = \strlen($notFoundSuffix);
if ($notFoundSuffixLen > $messageLen) {
return null;
}
if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
return null;
}
foreach (['class', 'interface', 'trait'] as $typeName) {
$prefix = ucfirst($typeName).' \'';
$prefixLen = \strlen($prefix);
if (0 !== strpos($error['message'], $prefix)) {
continue;
}
$fullyQualifiedClassName = substr($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);
}
return null;
}
/**
* Tries to guess the full namespace for a given class name.
*
* By default, it looks for PSR-0 and PSR-4 classes registered via a Symfony or a Composer
* autoloader (that should cover all common cases).
*
* @param string $class A class name (without its namespace)
*
* @return array An array of possible fully qualified class names
*/
private function getClassCandidates(string $class): array
{
if (!\is_array($functions = spl_autoload_functions())) {
return [];
}
// find Symfony and Composer autoloaders
$classes = [];
foreach ($functions as $function) {
if (!\is_array($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 || $function[0] instanceof SymfonyClassLoader) {
foreach ($function[0]->getPrefixes() as $prefix => $paths) {
foreach ($paths as $path) {
$classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
}
}
}
if ($function[0] instanceof ComposerClassLoader) {
foreach ($function[0]->getPrefixesPsr4() as $prefix => $paths) {
foreach ($paths as $path) {
$classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
}
}
}
}
return array_unique($classes);
}
private function findClassInPath(string $path, string $class, string $prefix): array
{
if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.\dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
return [];
}
$classes = [];
$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)) {
$classes[] = $class;
}
}
return $classes;
}
private function convertFileToClass(string $path, string $file, string $prefix): ?string
{
$candidates = [
// namespaced class
$namespacedClass = str_replace([$path.\DIRECTORY_SEPARATOR, '.php', '/'], ['', '', '\\'], $file),
// namespaced class (with target dir)
$prefix.$namespacedClass,
// namespaced class (with target dir and separator)
$prefix.'\\'.$namespacedClass,
// PEAR class
str_replace('\\', '_', $namespacedClass),
// PEAR class (with target dir)
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, $prefix); });
}
// We cannot use the autoloader here as most of them use require; but if the class
// is not found, the new autoloader call will require the file again leading to a
// "cannot redeclare class" error.
foreach ($candidates as $candidate) {
if ($this->classExists($candidate)) {
return $candidate;
}
}
try {
require_once $file;
} catch (\Throwable $e) {
return null;
}
foreach ($candidates as $candidate) {
if ($this->classExists($candidate)) {
return $candidate;
}
}
return null;
}
private function classExists(string $class): bool
{
return class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
}
}

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<?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\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()
*
* @return FatalErrorException|null A FatalErrorException instance if the class is able to convert the error, null otherwise
*/
public function handleError(array $error, FatalErrorException $exception);
}

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<?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\FatalErrorHandler;
use Symfony\Component\Debug\Exception\FatalErrorException;
use Symfony\Component\Debug\Exception\UndefinedFunctionException;
@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer::class), E_USER_DEPRECATED);
/**
* ErrorHandler for undefined functions.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @deprecated since Symfony 4.4, use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer instead.
*/
class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
{
/**
* {@inheritdoc}
*/
public function handleError(array $error, FatalErrorException $exception)
{
$messageLen = \strlen($error['message']);
$notFoundSuffix = '()';
$notFoundSuffixLen = \strlen($notFoundSuffix);
if ($notFoundSuffixLen > $messageLen) {
return null;
}
if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
return null;
}
$prefix = 'Call to undefined function ';
$prefixLen = \strlen($prefix);
if (0 !== strpos($error['message'], $prefix)) {
return null;
}
$fullyQualifiedFunctionName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedFunctionName, '\\')) {
$functionName = substr($fullyQualifiedFunctionName, $namespaceSeparatorIndex + 1);
$namespacePrefix = substr($fullyQualifiedFunctionName, 0, $namespaceSeparatorIndex);
$message = sprintf('Attempted to call function "%s" from namespace "%s".', $functionName, $namespacePrefix);
} else {
$functionName = $fullyQualifiedFunctionName;
$message = sprintf('Attempted to call function "%s" from the global namespace.', $functionName);
}
$candidates = [];
foreach (get_defined_functions() as $type => $definedFunctionNames) {
foreach ($definedFunctionNames as $definedFunctionName) {
if (false !== $namespaceSeparatorIndex = strrpos($definedFunctionName, '\\')) {
$definedFunctionNameBasename = substr($definedFunctionName, $namespaceSeparatorIndex + 1);
} else {
$definedFunctionNameBasename = $definedFunctionName;
}
if ($definedFunctionNameBasename === $functionName) {
$candidates[] = '\\'.$definedFunctionName;
}
}
}
if ($candidates) {
sort($candidates);
$last = array_pop($candidates).'"?';
if ($candidates) {
$candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last;
} else {
$candidates = '"'.$last;
}
$message .= "\nDid you mean to call ".$candidates;
}
return new UndefinedFunctionException($message, $exception);
}
}

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<?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\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
{
/**
* {@inheritdoc}
*/
public function handleError(array $error, FatalErrorException $exception)
{
preg_match('/^Call to undefined method (.*)::(.*)\(\)$/', $error['message'], $matches);
if (!$matches) {
return null;
}
$className = $matches[1];
$methodName = $matches[2];
$message = sprintf('Attempted to call an undefined method named "%s" of class "%s".', $methodName, $className);
if (!class_exists($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);
}
$candidates = [];
foreach ($methods as $definedMethodName) {
$lev = levenshtein($methodName, $definedMethodName);
if ($lev <= \strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
$candidates[] = $definedMethodName;
}
}
if ($candidates) {
sort($candidates);
$last = array_pop($candidates).'"?';
if ($candidates) {
$candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last;
} else {
$candidates = '"'.$last;
}
$message .= "\nDid you mean to call ".$candidates;
}
return new UndefinedMethodException($message, $exception);
}
}

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Copyright (c) 2004-2020 Fabien Potencier
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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

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{
"name": "symfony/debug",
"type": "library",
"description": "Symfony Debug Component",
"keywords": [],
"homepage": "https://symfony.com",
"license": "MIT",
"authors": [
{
"name": "Fabien Potencier",
"email": "fabien@symfony.com"
},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"
}
],
"require": {
"php": "^7.1.3",
"psr/log": "~1.0"
},
"conflict": {
"symfony/http-kernel": "<3.4"
},
"require-dev": {
"symfony/http-kernel": "^3.4|^4.0|^5.0"
},
"autoload": {
"psr-4": { "Symfony\\Component\\Debug\\": "" },
"exclude-from-classmap": [
"/Tests/"
]
},
"minimum-stability": "dev",
"extra": {
"branch-alias": {
"dev-master": "4.4-dev"
}
}
}