@@ -54,7 +54,7 @@ class Twig_Compiler

     /**

      * Compiles a node.

      *

-     * @param int       $indentation The current indentation

+     * @param int $indentation The current indentation

      *

      * @return $this

      */

@@ -241,7 +241,7 @@ class Twig_Environment

         } elseif ($cache instanceof Twig_CacheInterface) {

             $this->originalCache = $this->cache = $cache;

         } else {

-            throw new LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.'));

+            throw new \LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.'));

         }

     }

@@ -563,7 +563,7 @@ class Twig_Environment

         } catch (Twig_Error $e) {

             $e->setSourceContext($source);

             throw $e;

-        } catch (Exception $e) {

+        } catch (\Exception $e) {

             throw new Twig_Error_Syntax(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $source, $e);

         }

     }

@@ -871,7 +871,7 @@ class Twig_Environment

     public function addGlobal($name, $value)

     {

         if ($this->extensionSet->isInitialized() && !array_key_exists($name, $this->getGlobals())) {

-            throw new LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));

+            throw new \LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));

         }

         if (null !== $this->resolvedGlobals) {

@@ -24,9 +24,9 @@

  */

 class Twig_Error_Loader extends Twig_Error

 {

-    public function __construct($message, $lineno = -1, $source = null, Exception $previous = null)

+    public function __construct($message, $lineno = -1, $source = null, \Exception $previous = null)

     {

-        Exception::__construct('', 0, $previous);

+        \Exception::__construct('', 0, $previous);

         $this->appendMessage($message);

         $this->setTemplateLine(false);

     }

@@ -67,22 +67,22 @@ final class Twig_Extension_Core extends Twig_Extension

     /**

      * Sets the default timezone to be used by the date filter.

      *

-     * @param DateTimeZone|string $timezone The default timezone string or a DateTimeZone object

+     * @param \DateTimeZone|string $timezone The default timezone string or a \DateTimeZone object

      */

     public function setTimezone($timezone)

     {

-        $this->timezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone);

+        $this->timezone = $timezone instanceof \DateTimeZone ? $timezone : new \DateTimeZone($timezone);

     }

     /**

      * Gets the default timezone to be used by the date filter.

      *

-     * @return DateTimeZone The default timezone currently in use

+     * @return \DateTimeZone The default timezone currently in use

      */

     public function getTimezone()

     {

         if (null === $this->timezone) {

-            $this->timezone = new DateTimeZone(date_default_timezone_get());

+            $this->timezone = new \DateTimeZone(date_default_timezone_get());

         }

         return $this->timezone;

@@ -275,11 +275,11 @@ function twig_cycle($values, $position)

 /**

  * Returns a random value depending on the supplied parameter type:

- * - a random item from a Traversable or array

+ * - a random item from a \Traversable or array

  * - a random character from a string

  * - a random integer between 0 and the integer parameter.

  *

- * @param Traversable|array|int|float|string $values The values to pick a random item from

+ * @param \Traversable|array|int|float|string $values The values to pick a random item from

  *

  * @throws Twig_Error_Runtime when $values is an empty array (does not apply to an empty string which is returned as is)

  *

@@ -295,7 +295,7 @@ function twig_random(Twig_Environment $env, $values = null)

         return $values < 0 ? mt_rand($values, 0) : mt_rand(0, $values);

     }

-    if ($values instanceof Traversable) {

+    if ($values instanceof \Traversable) {

         $values = iterator_to_array($values);

     } elseif (is_string($values)) {

         if ('' === $values) {

@@ -335,9 +335,9 @@ function twig_random(Twig_Environment $env, $values = null)

  *

  *   {{ post.published_at|date("m/d/Y") }}

  *

- * @param DateTimeInterface|DateInterval|string $date     A date

- * @param string|null                           $format   The target format, null to use the default

- * @param DateTimeZone|string|false|null        $timezone The target timezone, null to use the default, false to leave unchanged

+ * @param \DateTimeInterface|\DateInterval|string $date     A date

+ * @param string|null                             $format   The target format, null to use the default

+ * @param \DateTimeZone|string|false|null         $timezone The target timezone, null to use the default, false to leave unchanged

  *

  * @return string The formatted date

  */

@@ -345,10 +345,10 @@ function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $

 {

     if (null === $format) {

         $formats = $env->getExtension('Twig_Extension_Core')->getDateFormat();

-        $format = $date instanceof DateInterval ? $formats[1] : $formats[0];

+        $format = $date instanceof \DateInterval ? $formats[1] : $formats[0];

     }

-    if ($date instanceof DateInterval) {

+    if ($date instanceof \DateInterval) {

         return $date->format($format);

     }

@@ -360,10 +360,10 @@ function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $

  *

  *   {{ post.published_at|date_modify("-1day")|date("m/d/Y") }}

  *

- * @param DateTimeInterface|string $date     A date

- * @param string                   $modifier A modifier string

+ * @param \DateTimeInterface|string $date     A date

+ * @param string                    $modifier A modifier string

  *

- * @return DateTimeInterface A new date object

+ * @return \DateTimeInterface A new date object

  */

 function twig_date_modify_filter(Twig_Environment $env, $date, $modifier)

 {

@@ -373,16 +373,16 @@ function twig_date_modify_filter(Twig_Environment $env, $date, $modifier)

 }

 /**

- * Converts an input to a DateTime instance.

+ * Converts an input to a \DateTime instance.

  *

  *    {% if date(user.created_at) < date('+2days') %}

  *      {# do something #}

  *    {% endif %}

  *

- * @param DateTimeInterface|string|null  $date     A date or null to use the current time

- * @param DateTimeZone|string|false|null $timezone The target timezone, null to use the default, false to leave unchanged

+ * @param \DateTimeInterface|string|null  $date     A date or null to use the current time

+ * @param \DateTimeZone|string|false|null $timezone The target timezone, null to use the default, false to leave unchanged

  *

- * @return DateTime A DateTime instance

+ * @return \DateTime A \DateTime instance

  */

 function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null)

 {

@@ -390,17 +390,17 @@ function twig_date_converter(Twig_Environment $env, $date = null, $timezone = nu

     if (false !== $timezone) {

         if (null === $timezone) {

             $timezone = $env->getExtension('Twig_Extension_Core')->getTimezone();

-        } elseif (!$timezone instanceof DateTimeZone) {

-            $timezone = new DateTimeZone($timezone);

+        } elseif (!$timezone instanceof \DateTimeZone) {

+            $timezone = new \DateTimeZone($timezone);

         }

     }

     // immutable dates

-    if ($date instanceof DateTimeImmutable) {

+    if ($date instanceof \DateTimeImmutable) {

         return false !== $timezone ? $date->setTimezone($timezone) : $date;

     }

-    if ($date instanceof DateTimeInterface) {

+    if ($date instanceof \DateTimeInterface) {

         $date = clone $date;

         if (false !== $timezone) {

             $date->setTimezone($timezone);

@@ -410,14 +410,14 @@ function twig_date_converter(Twig_Environment $env, $date = null, $timezone = nu

     }

     if (null === $date || 'now' === $date) {

-        return new DateTime($date, false !== $timezone ? $timezone : $env->getExtension('Twig_Extension_Core')->getTimezone());

+        return new \DateTime($date, false !== $timezone ? $timezone : $env->getExtension('Twig_Extension_Core')->getTimezone());

     }

     $asString = (string) $date;

     if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) {

-        $date = new DateTime('@'.$date);

+        $date = new \DateTime('@'.$date);

     } else {

-        $date = new DateTime($date, $env->getExtension('Twig_Extension_Core')->getTimezone());

+        $date = new \DateTime($date, $env->getExtension('Twig_Extension_Core')->getTimezone());

     }

     if (false !== $timezone) {

@@ -430,14 +430,14 @@ function twig_date_converter(Twig_Environment $env, $date = null, $timezone = nu

 /**

  * Replaces strings within a string.

  *

- * @param string            $str  String to replace in

- * @param array|Traversable $from Replace values

+ * @param string             $str  String to replace in

+ * @param array|\Traversable $from Replace values

  *

  * @return string

  */

 function twig_replace_filter($str, $from)

 {

-    if ($from instanceof Traversable) {

+    if ($from instanceof \Traversable) {

         $from = iterator_to_array($from);

     } elseif (!is_array($from)) {

         throw new Twig_Error_Runtime(sprintf('The "replace" filter expects an array or "Traversable" as replace values, got "%s".', is_object($from) ? get_class($from) : gettype($from)));

@@ -475,10 +475,10 @@ function twig_round($value, $precision = 0, $method = 'common')

  * be used.  Supplying any of the parameters will override the defaults set in the

  * environment object.

  *

- * @param mixed            $number       A float/int/string of the number to format

- * @param int              $decimal      the number of decimal points to display

- * @param string           $decimalPoint the character(s) to use for the decimal point

- * @param string           $thousandSep  the character(s) to use for the thousands separator

+ * @param mixed  $number       A float/int/string of the number to format

+ * @param int    $decimal      the number of decimal points to display

+ * @param string $decimalPoint the character(s) to use for the decimal point

+ * @param string $thousandSep  the character(s) to use for the thousands separator

  *

  * @return string The formatted number

  */

@@ -525,20 +525,20 @@ function twig_urlencode_filter($url)

  *

  *  {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #}

  *

- * @param array|Traversable $arr1 An array

- * @param array|Traversable $arr2 An array

+ * @param array|\Traversable $arr1 An array

+ * @param array|\Traversable $arr2 An array

  *

  * @return array The merged array

  */

 function twig_array_merge($arr1, $arr2)

 {

-    if ($arr1 instanceof Traversable) {

+    if ($arr1 instanceof \Traversable) {

         $arr1 = iterator_to_array($arr1);

     } elseif (!is_array($arr1)) {

         throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as first argument.', gettype($arr1)));

     }

-    if ($arr2 instanceof Traversable) {

+    if ($arr2 instanceof \Traversable) {

         $arr2 = iterator_to_array($arr2);

     } elseif (!is_array($arr2)) {

         throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as second argument.', gettype($arr2)));

@@ -550,24 +550,24 @@ function twig_array_merge($arr1, $arr2)

 /**

  * Slices a variable.

  *

- * @param mixed            $item         A variable

- * @param int              $start        Start of the slice

- * @param int              $length       Size of the slice

- * @param bool             $preserveKeys Whether to preserve key or not (when the input is an array)

+ * @param mixed $item         A variable

+ * @param int   $start        Start of the slice

+ * @param int   $length       Size of the slice

+ * @param bool  $preserveKeys Whether to preserve key or not (when the input is an array)

  *

  * @return mixed The sliced variable

  */

 function twig_slice(Twig_Environment $env, $item, $start, $length = null, $preserveKeys = false)

 {

-    if ($item instanceof Traversable) {

-        while ($item instanceof IteratorAggregate) {

+    if ($item instanceof \Traversable) {

+        while ($item instanceof \IteratorAggregate) {

             $item = $item->getIterator();

         }

-        if ($start >= 0 && $length >= 0 && $item instanceof Iterator) {

+        if ($start >= 0 && $length >= 0 && $item instanceof \Iterator) {

             try {

-                return iterator_to_array(new LimitIterator($item, $start, null === $length ? -1 : $length), $preserveKeys);

-            } catch (OutOfBoundsException $exception) {

+                return iterator_to_array(new \LimitIterator($item, $start, null === $length ? -1 : $length), $preserveKeys);

+            } catch (\OutOfBoundsException $exception) {

                 return [];

             }

         }

@@ -587,7 +587,7 @@ function twig_slice(Twig_Environment $env, $item, $start, $length = null, $prese

 /**

  * Returns the first element of the item.

  *

- * @param mixed            $item A variable

+ * @param mixed $item A variable

  *

  * @return mixed The first element of the item

  */

@@ -601,7 +601,7 @@ function twig_first(Twig_Environment $env, $item)

 /**

  * Returns the last element of the item.

  *

- * @param mixed            $item A variable

+ * @param mixed $item A variable

  *

  * @return mixed The last element of the item

  */

@@ -634,7 +634,7 @@ function twig_last(Twig_Environment $env, $item)

  */

 function twig_join_filter($value, $glue = '', $and = null)

 {

-    if ($value instanceof Traversable) {

+    if ($value instanceof \Traversable) {

         $value = iterator_to_array($value, false);

     } else {

         $value = (array) $value;

@@ -671,9 +671,9 @@ function twig_join_filter($value, $glue = '', $and = null)

  *  {{ "aabbcc"|split('', 2) }}

  *  {# returns [aa, bb, cc] #}

  *

- * @param string           $value     A string

- * @param string           $delimiter The delimiter

- * @param int              $limit     The limit

+ * @param string $value     A string

+ * @param string $delimiter The delimiter

+ * @param int    $limit     The limit

  *

  * @return array The split string as an array

  */

@@ -730,12 +730,12 @@ function _twig_default_filter($value, $default = '')

  */

 function twig_get_array_keys_filter($array)

 {

-    if ($array instanceof Traversable) {

-        while ($array instanceof IteratorAggregate) {

+    if ($array instanceof \Traversable) {

+        while ($array instanceof \IteratorAggregate) {

             $array = $array->getIterator();

         }

-        if ($array instanceof Iterator) {

+        if ($array instanceof \Iterator) {

             $keys = [];

             $array->rewind();

             while ($array->valid()) {

@@ -764,14 +764,14 @@ function twig_get_array_keys_filter($array)

 /**

  * Reverses a variable.

  *

- * @param array|Traversable|string $item         An array, a Traversable instance, or a string

- * @param bool                     $preserveKeys Whether to preserve key or not

+ * @param array|\Traversable|string $item         An array, a \Traversable instance, or a string

+ * @param bool                      $preserveKeys Whether to preserve key or not

  *

  * @return mixed The reversed input

  */

 function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false)

 {

-    if ($item instanceof Traversable) {

+    if ($item instanceof \Traversable) {

         return array_reverse(iterator_to_array($item), $preserveKeys);

     }

@@ -801,13 +801,13 @@ function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false

 /**

  * Sorts an array.

  *

- * @param array|Traversable $array

+ * @param array|\Traversable $array

  *

  * @return array

  */

 function twig_sort_filter($array)

 {

-    if ($array instanceof Traversable) {

+    if ($array instanceof \Traversable) {

         $array = iterator_to_array($array);

     } elseif (!is_array($array)) {

         throw new Twig_Error_Runtime(sprintf('The sort filter only works with arrays or "Traversable", got "%s".', gettype($array)));

@@ -827,7 +827,7 @@ function twig_in_filter($value, $compare)

         return in_array($value, $compare, is_object($value) || is_resource($value));

     } elseif (is_string($compare) && (is_string($value) || is_int($value) || is_float($value))) {

         return '' === $value || false !== strpos($compare, (string) $value);

-    } elseif ($compare instanceof Traversable) {

+    } elseif ($compare instanceof \Traversable) {

         if (is_object($value) || is_resource($value)) {

             foreach ($compare as $item) {

                 if ($item === $value) {

@@ -876,10 +876,10 @@ function twig_trim_filter($string, $characterMask = null, $side = 'both')

 /**

  * Escapes a string.

  *

- * @param mixed            $string     The value to be escaped

- * @param string           $strategy   The escaping strategy

- * @param string           $charset    The charset

- * @param bool             $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)

+ * @param mixed  $string     The value to be escaped

+ * @param string $strategy   The escaping strategy

+ * @param string $charset    The charset

+ * @param bool   $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)

  *

  * @return string

  */

@@ -1125,7 +1125,7 @@ function twig_convert_encoding($string, $to, $from)

 /**

  * Returns the length of a variable.

  *

- * @param mixed            $thing A variable

+ * @param mixed $thing A variable

  *

  * @return int The length of the value

  */

@@ -1161,7 +1161,7 @@ function twig_length_filter(Twig_Environment $env, $thing)

 /**

  * Converts a string to uppercase.

  *

- * @param string           $string A string

+ * @param string $string A string

  *

  * @return string The uppercased string

  */

@@ -1173,7 +1173,7 @@ function twig_upper_filter(Twig_Environment $env, $string)

 /**

  * Converts a string to lowercase.

  *

- * @param string           $string A string

+ * @param string $string A string

  *

  * @return string The lowercased string

  */

@@ -1185,7 +1185,7 @@ function twig_lower_filter(Twig_Environment $env, $string)

 /**

  * Returns a titlecased string.

  *

- * @param string           $string A string

+ * @param string $string A string

  *

  * @return string The titlecased string

  */

@@ -1201,7 +1201,7 @@ function twig_title_string_filter(Twig_Environment $env, $string)

 /**

  * Returns a capitalized string.

  *

- * @param string           $string A string

+ * @param string $string A string

  *

  * @return string The capitalized string

  */

@@ -1217,7 +1217,7 @@ function twig_capitalize_string_filter(Twig_Environment $env, $string)

  */

 function twig_ensure_traversable($seq)

 {

-    if ($seq instanceof Traversable || is_array($seq)) {

+    if ($seq instanceof \Traversable || is_array($seq)) {

         return $seq;

     }

@@ -1238,7 +1238,7 @@ function twig_ensure_traversable($seq)

  */

 function twig_test_empty($value)

 {

-    if ($value instanceof Countable) {

+    if ($value instanceof \Countable) {

         return 0 == count($value);

     }

@@ -1263,18 +1263,18 @@ function twig_test_empty($value)

  */

 function twig_test_iterable($value)

 {

-    return $value instanceof Traversable || is_array($value);

+    return $value instanceof \Traversable || is_array($value);

 }

 /**

  * Renders a template.

  *

- * @param array            $context

- * @param string|array     $template      The template to render or an array of templates to try consecutively

- * @param array            $variables     The variables to pass to the template

- * @param bool             $withContext

- * @param bool             $ignoreMissing Whether to ignore missing templates or not

- * @param bool             $sandboxed     Whether to sandbox the template or not

+ * @param array        $context

+ * @param string|array $template      The template to render or an array of templates to try consecutively

+ * @param array        $variables     The variables to pass to the template

+ * @param bool         $withContext

+ * @param bool         $ignoreMissing Whether to ignore missing templates or not

+ * @param bool         $sandboxed     Whether to sandbox the template or not

  *

  * @return string The rendered template

  */

@@ -1304,7 +1304,7 @@ function twig_include(Twig_Environment $env, $context, $template, $variables = [

             throw $e;

         }

-    } catch (Throwable $e) {

+    } catch (\Throwable $e) {

         if ($isSandboxed && !$alreadySandboxed) {

             $sandbox->disableSandbox();

         }

@@ -1322,8 +1322,8 @@ function twig_include(Twig_Environment $env, $context, $template, $variables = [

 /**

  * Returns a template content without rendering it.

  *

- * @param string           $name          The template name

- * @param bool             $ignoreMissing Whether to ignore missing templates or not

+ * @param string $name          The template name

+ * @param bool   $ignoreMissing Whether to ignore missing templates or not

  *

  * @return string The template source

  */

@@ -1384,7 +1384,7 @@ function twig_constant_is_defined($constant, $object = null)

  */

 function twig_array_batch($items, $size, $fill = null)

 {

-    if ($items instanceof Traversable) {

+    if ($items instanceof \Traversable) {

         $items = iterator_to_array($items, false);

     }

@@ -1427,7 +1427,7 @@ function twig_get_attribute(Twig_Environment $env, Twig_Source $source, $object,

     if (/* Twig_Template::METHOD_CALL */ 'method' !== $type) {

         $arrayItem = is_bool($item) || is_float($item) ? (int) $item : $item;

-        if (((is_array($object) || $object instanceof ArrayObject) && (isset($object[$arrayItem]) || array_key_exists($arrayItem, $object)))

+        if (((is_array($object) || $object instanceof \ArrayObject) && (isset($object[$arrayItem]) || array_key_exists($arrayItem, $object)))

             || ($object instanceof ArrayAccess && isset($object[$arrayItem]))

         ) {

             if ($isDefinedTest) {

@@ -1588,7 +1588,7 @@ function twig_get_attribute(Twig_Environment $env, Twig_Source $source, $object,

     // to call is not supported. If ignoreStrictCheck is true, we should return null.

     try {

         $ret = $object->$method(...$arguments);

-    } catch (BadMethodCallException $e) {

+    } catch (\BadMethodCallException $e) {

         if ($call && ($ignoreStrictCheck || !$env->isStrictVariables())) {

             return;

         }

@@ -27,7 +27,7 @@ final class Twig_Extension_Staging extends Twig_Extension

     public function addFunction(Twig_Function $function)

     {

         if (isset($this->functions[$function->getName()])) {

-            throw new LogicException(sprintf('Function "%s" is already registered.', $function->getName()));

+            throw new \LogicException(sprintf('Function "%s" is already registered.', $function->getName()));

         }

         $this->functions[$function->getName()] = $function;

@@ -41,7 +41,7 @@ final class Twig_Extension_Staging extends Twig_Extension

     public function addFilter(Twig_Filter $filter)

     {

         if (isset($this->filters[$filter->getName()])) {

-            throw new LogicException(sprintf('Filter "%s" is already registered.', $filter->getName()));

+            throw new \LogicException(sprintf('Filter "%s" is already registered.', $filter->getName()));

         }

         $this->filters[$filter->getName()] = $filter;

@@ -65,7 +65,7 @@ final class Twig_Extension_Staging extends Twig_Extension

     public function addTokenParser(Twig_TokenParserInterface $parser)

     {

         if (isset($this->tokenParsers[$parser->getTag()])) {

-            throw new LogicException(sprintf('Tag "%s" is already registered.', $parser->getTag()));

+            throw new \LogicException(sprintf('Tag "%s" is already registered.', $parser->getTag()));

         }

         $this->tokenParsers[$parser->getTag()] = $parser;

@@ -79,7 +79,7 @@ final class Twig_Extension_Staging extends Twig_Extension

     public function addTest(Twig_Test $test)

     {

         if (isset($this->tests[$test->getName()])) {

-            throw new LogicException(sprintf('Test "%s" is already registered.', $test->getTag()));

+            throw new \LogicException(sprintf('Test "%s" is already registered.', $test->getTag()));

         }

         $this->tests[$test->getName()] = $test;

@@ -67,7 +67,7 @@ final class Twig_ExtensionSet

         $class = ltrim($class, '\\');

         if (!isset($this->extensions[$class]) && class_exists($class, false)) {

             // For BC/FC with namespaced aliases

-            $class = (new ReflectionClass($class))->name;

+            $class = (new \ReflectionClass($class))->name;

         }

         return isset($this->extensions[$class]);

@@ -85,7 +85,7 @@ final class Twig_ExtensionSet

         $class = ltrim($class, '\\');

         if (!isset($this->extensions[$class]) && class_exists($class, false)) {

             // For BC/FC with namespaced aliases

-            $class = (new ReflectionClass($class))->name;

+            $class = (new \ReflectionClass($class))->name;

         }

         if (!isset($this->extensions[$class])) {

@@ -134,7 +134,7 @@ final class Twig_ExtensionSet

         }

         foreach ($this->extensions as $extension) {

-            $r = new ReflectionObject($extension);

+            $r = new \ReflectionObject($extension);

             if (file_exists($r->getFileName()) && ($extensionTime = filemtime($r->getFileName())) > $this->lastModified) {

                 $this->lastModified = $extensionTime;

             }

@@ -148,22 +148,22 @@ final class Twig_ExtensionSet

         $class = get_class($extension);

         if ($this->initialized) {

-            throw new LogicException(sprintf('Unable to register extension "%s" as extensions have already been initialized.', $class));

+            throw new \LogicException(sprintf('Unable to register extension "%s" as extensions have already been initialized.', $class));

         }

         if (isset($this->extensions[$class])) {

-            throw new LogicException(sprintf('Unable to register extension "%s" as it is already registered.', $class));

+            throw new \LogicException(sprintf('Unable to register extension "%s" as it is already registered.', $class));

         }

         // For BC/FC with namespaced aliases

-        $class = (new ReflectionClass($class))->name;

+        $class = (new \ReflectionClass($class))->name;

         $this->extensions[$class] = $extension;

     }

     public function addFunction(Twig_Function $function)

     {

         if ($this->initialized) {

-            throw new LogicException(sprintf('Unable to add function "%s" as extensions have already been initialized.', $function->getName()));

+            throw new \LogicException(sprintf('Unable to add function "%s" as extensions have already been initialized.', $function->getName()));

         }

         $this->staging->addFunction($function);

@@ -223,7 +223,7 @@ final class Twig_ExtensionSet

     public function addFilter(Twig_Filter $filter)

     {

         if ($this->initialized) {

-            throw new LogicException(sprintf('Unable to add filter "%s" as extensions have already been initialized.', $filter->getName()));

+            throw new \LogicException(sprintf('Unable to add filter "%s" as extensions have already been initialized.', $filter->getName()));

         }

         $this->staging->addFilter($filter);

@@ -286,7 +286,7 @@ final class Twig_ExtensionSet

     public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)

     {

         if ($this->initialized) {

-            throw new LogicException('Unable to add a node visitor as extensions have already been initialized.');

+            throw new \LogicException('Unable to add a node visitor as extensions have already been initialized.');

         }

         $this->staging->addNodeVisitor($visitor);

@@ -304,7 +304,7 @@ final class Twig_ExtensionSet

     public function addTokenParser(Twig_TokenParserInterface $parser)

     {

         if ($this->initialized) {

-            throw new LogicException('Unable to add a token parser as extensions have already been initialized.');

+            throw new \LogicException('Unable to add a token parser as extensions have already been initialized.');

         }

         $this->staging->addTokenParser($parser);

@@ -333,7 +333,7 @@ final class Twig_ExtensionSet

             $extGlobals = $extension->getGlobals();

             if (!is_array($extGlobals)) {

-                throw new UnexpectedValueException(sprintf('"%s::getGlobals()" must return an array of globals.', get_class($extension)));

+                throw new \UnexpectedValueException(sprintf('"%s::getGlobals()" must return an array of globals.', get_class($extension)));

             }

             $globals = array_merge($globals, $extGlobals);

@@ -349,7 +349,7 @@ final class Twig_ExtensionSet

     public function addTest(Twig_Test $test)

     {

         if ($this->initialized) {

-            throw new LogicException(sprintf('Unable to add test "%s" as extensions have already been initialized.', $test->getName()));

+            throw new \LogicException(sprintf('Unable to add test "%s" as extensions have already been initialized.', $test->getName()));

         }

         $this->staging->addTest($test);

@@ -463,7 +463,7 @@ final class Twig_ExtensionSet

         // token parsers

         foreach ($extension->getTokenParsers() as $parser) {

             if (!$parser instanceof Twig_TokenParserInterface) {

-                throw new LogicException('getTokenParsers() must return an array of Twig_TokenParserInterface.');

+                throw new \LogicException('getTokenParsers() must return an array of Twig_TokenParserInterface.');

             }

             $this->parsers[] = $parser;

@@ -477,11 +477,11 @@ final class Twig_ExtensionSet

         // operators

         if ($operators = $extension->getOperators()) {

             if (!is_array($operators)) {

-                throw new InvalidArgumentException(sprintf('"%s::getOperators()" must return an array with operators, got "%s".', get_class($extension), is_object($operators) ? get_class($operators) : gettype($operators).(is_resource($operators) ? '' : '#'.$operators)));

+                throw new \InvalidArgumentException(sprintf('"%s::getOperators()" must return an array with operators, got "%s".', get_class($extension), is_object($operators) ? get_class($operators) : gettype($operators).(is_resource($operators) ? '' : '#'.$operators)));

             }

             if (2 !== count($operators)) {

-                throw new InvalidArgumentException(sprintf('"%s::getOperators()" must return an array of 2 elements, got %d.', get_class($extension), count($operators)));

+                throw new \InvalidArgumentException(sprintf('"%s::getOperators()" must return an array of 2 elements, got %d.', get_class($extension), count($operators)));

             }

             $this->unaryOperators = array_merge($this->unaryOperators, $operators[0]);

@@ -388,7 +388,7 @@ class Twig_Lexer

     private function popState()

     {

         if (0 === count($this->states)) {

-            throw new LogicException('Cannot pop state without a previous state.');

+            throw new \LogicException('Cannot pop state without a previous state.');

         }

         $this->state = array_pop($this->states);

@@ -14,7 +14,7 @@

  *

  * @author Fabien Potencier <fabien@symfony.com>

  */

-class Twig_Markup implements Countable, JsonSerializable

+class Twig_Markup implements \Countable, JsonSerializable

 {

     private $content;

     private $charset;

@@ -15,7 +15,7 @@

  *

  * @author Fabien Potencier <fabien@symfony.com>

  */

-class Twig_Node implements Countable, IteratorAggregate

+class Twig_Node implements \Countable, \IteratorAggregate

 {

     protected $nodes;

     protected $attributes;

@@ -39,7 +39,7 @@ class Twig_Node implements Countable, IteratorAggregate

     {

         foreach ($nodes as $name => $node) {

             if (!$node instanceof self) {

-                throw new InvalidArgumentException(sprintf('Using "%s" for the value of node "%s" of "%s" is not supported. You must pass a Twig_Node instance.', is_object($node) ? get_class($node) : null === $node ? 'null' : gettype($node), $name, get_class($this)));

+                throw new \InvalidArgumentException(sprintf('Using "%s" for the value of node "%s" of "%s" is not supported. You must pass a Twig_Node instance.', is_object($node) ? get_class($node) : null === $node ? 'null' : gettype($node), $name, get_class($this)));

             }

         }

         $this->nodes = $nodes;

@@ -107,7 +107,7 @@ class Twig_Node implements Countable, IteratorAggregate

     public function getAttribute($name)

     {

         if (!array_key_exists($name, $this->attributes)) {

-            throw new LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, get_class($this)));

+            throw new \LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, get_class($this)));

         }

         return $this->attributes[$name];

@@ -141,7 +141,7 @@ class Twig_Node implements Countable, IteratorAggregate

     public function getNode($name)

     {

         if (!isset($this->nodes[$name])) {

-            throw new LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, get_class($this)));

+            throw new \LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, get_class($this)));

         }

         return $this->nodes[$name];

@@ -164,7 +164,7 @@ class Twig_Node implements Countable, IteratorAggregate

     public function getIterator()

     {

-        return new ArrayIterator($this->nodes);

+        return new \ArrayIterator($this->nodes);

     }

     public function setTemplateName($name)

@@ -22,15 +22,15 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression

             $compiler->raw($callable);

         } else {

             list($r, $callable) = $this->reflectCallable($callable);

-            if ($r instanceof ReflectionMethod && is_string($callable[0])) {

+            if ($r instanceof \ReflectionMethod && is_string($callable[0])) {

                 if ($r->isStatic()) {

                     $compiler->raw(sprintf('%s::%s', $callable[0], $callable[1]));

                 } else {

                     $compiler->raw(sprintf('$this->env->getRuntime(\'%s\')->%s', $callable[0], $callable[1]));

                 }

-            } elseif ($r instanceof ReflectionMethod && $callable[0] instanceof Twig_ExtensionInterface) {

+            } elseif ($r instanceof \ReflectionMethod && $callable[0] instanceof Twig_ExtensionInterface) {

                 // For BC/FC with namespaced aliases

-                $class = (new ReflectionClass(get_class($callable[0])))->name;

+                $class = (new \ReflectionClass(get_class($callable[0])))->name;

                 if (!$compiler->getEnvironment()->hasExtension($class)) {

                     // Compile a non-optimized call to trigger a Twig_Error_Runtime, which cannot be a compile-time error

                     $compiler->raw(sprintf('$this->env->getExtension(\'%s\')', $class));

@@ -135,7 +135,7 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression

                 $message = sprintf('Arbitrary positional arguments are not supported for %s "%s".', $callType, $callName);

             }

-            throw new LogicException($message);

+            throw new \LogicException($message);

         }

         $callableParameters = $this->getCallableParameters($callable, $isVariadic);

@@ -250,11 +250,11 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression

                 array_pop($parameters);

             } else {

                 $callableName = $r->name;

-                if ($r instanceof ReflectionMethod) {

+                if ($r instanceof \ReflectionMethod) {

                     $callableName = $r->getDeclaringClass()->name.'::'.$callableName;

                 }

-                throw new LogicException(sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = []".', $callableName, $this->getAttribute('type'), $this->getAttribute('name')));

+                throw new \LogicException(sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = []".', $callableName, $this->getAttribute('type'), $this->getAttribute('name')));

             }

         }

@@ -272,9 +272,9 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression

                 // __call()

                 return [null, []];

             }

-            $r = new ReflectionMethod($callable[0], $callable[1]);

+            $r = new \ReflectionMethod($callable[0], $callable[1]);

         } elseif (is_object($callable) && !$callable instanceof Closure) {

-            $r = new ReflectionObject($callable);

+            $r = new \ReflectionObject($callable);

             $r = $r->getMethod('__invoke');

             $callable = [$callable, '__invoke'];

         } elseif (is_string($callable) && false !== $pos = strpos($callable, '::')) {

@@ -284,10 +284,10 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression

                 // __staticCall()

                 return [null, []];

             }

-            $r = new ReflectionMethod($callable);

+            $r = new \ReflectionMethod($callable);

             $callable = [$class, $method];

         } else {

-            $r = new ReflectionFunction($callable);

+            $r = new \ReflectionFunction($callable);

         }

         return $this->reflector = [$r, $callable];

@@ -181,7 +181,7 @@ abstract class Twig_Template

         // avoid RCEs when sandbox is enabled

         if (null !== $template && !$template instanceof self) {

-            throw new LogicException('A block must be a method on a Twig_Template instance.');

+            throw new \LogicException('A block must be a method on a Twig_Template instance.');

         }

         if (null !== $template) {

@@ -200,7 +200,7 @@ abstract class Twig_Template

                 }

                 throw $e;

-            } catch (Exception $e) {

+            } catch (\Exception $e) {

                 throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $template->getSourceContext(), $e);

             }

         } elseif (false !== $parent = $this->getParent($context)) {

@@ -369,7 +369,7 @@ abstract class Twig_Template

         ob_start();

         try {

             $this->display($context);

-        } catch (Throwable $e) {

+        } catch (\Throwable $e) {

             while (ob_get_level() > $level) {

                 ob_end_clean();

             }

@@ -397,7 +397,7 @@ abstract class Twig_Template

             }

             throw $e;

-        } catch (Exception $e) {

+        } catch (\Exception $e) {

             throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $this->getSourceContext(), $e);

         }

     }

@@ -97,7 +97,7 @@ final class Twig_TemplateWrapper

         ob_start();

         try {

             $this->template->displayBlock($name, $context);

-        } catch (Throwable $e) {

+        } catch (\Throwable $e) {

             while (ob_get_level() > $level) {

                 ob_end_clean();

             }

@@ -86,7 +86,7 @@ abstract class Twig_Test_IntegrationTestCase extends TestCase

         $fixturesDir = realpath($this->getFixturesDir());

         $tests = [];

-        foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($fixturesDir), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {

+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($fixturesDir), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {

             if (!preg_match('/\.test$/', $file)) {

                 continue;

             }

@@ -112,7 +112,7 @@ abstract class Twig_Test_IntegrationTestCase extends TestCase

                 $exception = false;