Update to Drupal 8.1.2. For more information, see https://www.drupal.org/project/drupal/releases/8.1.2

core/lib/Drupal/Component/Datetime/DateTimePlus.php

@@ -104,6 +104,9 @@ class DateTimePlus {
    *   A DateTime object.
    * @param array $settings
    *   @see __construct()
+   *
+   * @return static
+   *   A new DateTimePlus object.
    */
   public static function createFromDateTime(\DateTime $datetime, $settings = array()) {
     return new static($datetime->format(static::FORMAT), $datetime->getTimezone(), $settings);
@@ -125,8 +128,10 @@ class DateTimePlus {
    *   __construct().
    *
    * @return static
-   *   A new \Drupal\Component\DateTimePlus object based on the parameters
-   *   passed in.
+   *   A new DateTimePlus object.
+   *
+   * @throws \Exception
+   *   If the array date values or value combination is not correct.
    */
   public static function createFromArray(array $date_parts, $timezone = NULL, $settings = array()) {
     $date_parts = static::prepareArray($date_parts, TRUE);
@@ -155,6 +160,12 @@ class DateTimePlus {
    *   @see __construct()
    * @param array $settings
    *   @see __construct()
+   *
+   * @return static
+   *   A new DateTimePlus object.
+   *
+   * @throws \Exception
+   *   If the timestamp is not numeric.
    */
   public static function createFromTimestamp($timestamp, $timezone = NULL, $settings = array()) {
     if (!is_numeric($timestamp)) {
@@ -187,6 +198,13 @@ class DateTimePlus {
    *     from a format string exactly matches the input. This option
    *     indicates the format can be used for validation. Defaults to TRUE.
    *   @see __construct()
+   *
+   * @return static
+   *   A new DateTimePlus object.
+   *
+   * @throws \Exception
+   *   If the a date cannot be created from the given format, or if the
+   *   created date does not match the input value.
    */
   public static function createFromFormat($format, $time, $timezone = NULL, $settings = array()) {
     if (!isset($settings['validate_format'])) {
@@ -294,6 +312,30 @@ class DateTimePlus {
     return call_user_func_array(array($this->dateTimeObject, $method), $args);
   }
 
+  /**
+   * Returns the difference between two DateTimePlus objects.
+   *
+   * @param \Drupal\Component\Datetime\DateTimePlus|\DateTime $datetime2
+   *    The date to compare to.
+   * @param bool $absolute
+   *    Should the interval be forced to be positive?
+   *
+   * @return \DateInterval
+   *    A DateInterval object representing the difference between the two dates.
+   *
+   * @throws \BadMethodCallException
+   *    If the input isn't a DateTime or DateTimePlus object.
+   */
+  public function diff($datetime2, $absolute = FALSE) {
+    if ($datetime2 instanceof DateTimePlus) {
+      $datetime2 = $datetime2->dateTimeObject;
+    }
+    if (!($datetime2 instanceof \DateTime)) {
+      throw new \BadMethodCallException(sprintf('Method %s expects parameter 1 to be a \DateTime or \Drupal\Component\Datetime\DateTimePlus object', __METHOD__));
+    }
+    return $this->dateTimeObject->diff($datetime2, $absolute);
+  }
+
   /**
    * Implements the magic __callStatic method.
    *
@@ -324,6 +366,9 @@ class DateTimePlus {
    * @param mixed $time
    *   An input value, which could be a timestamp, a string,
    *   or an array of date parts.
+   *
+   * @return mixed
+   *   The massaged time.
    */
   protected function prepareTime($time) {
     return $time;
@@ -338,6 +383,9 @@ class DateTimePlus {
    *
    * @param mixed $timezone
    *   Either a timezone name or a timezone object or NULL.
+   *
+   * @return \DateTimeZone
+   *   The massaged time zone.
    */
   protected function prepareTimezone($timezone) {
     // If the input timezone is a valid timezone object, use it.
@@ -370,6 +418,9 @@ class DateTimePlus {
    *
    * @param string $format
    *   A PHP format string.
+   *
+   * @return string
+   *   The massaged PHP format string.
    */
   protected function prepareFormat($format) {
     return $format;
@@ -403,6 +454,10 @@ class DateTimePlus {
 
   /**
    * Detects if there were errors in the processing of this date.
+   *
+   * @return boolean
+   *   TRUE if there were errors in the processing of this date, FALSE
+   *   otherwise.
    */
   public function hasErrors() {
     return (boolean) count($this->errors);
@@ -412,6 +467,9 @@ class DateTimePlus {
    * Gets error messages.
    *
    * Public function to return the error messages.
+   *
+   * @return array
+   *   An array of errors encountered when creating this date.
    */
   public function getErrors() {
     return $this->errors;
@@ -592,4 +650,5 @@ class DateTimePlus {
 
     return $value;
   }
+
 }

core/lib/Drupal/Component/DependencyInjection/Container.php

@@ -593,7 +593,7 @@ class Container implements IntrospectableContainerInterface, ResettableContainer
    */
   public function enterScope($name) {
     if ('request' !== $name) {
-      @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+      @trigger_error('The ' . __METHOD__ . ' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
     }
 
     throw new \BadMethodCallException(sprintf("'%s' is not supported by Drupal 8.", __FUNCTION__));
@@ -604,7 +604,7 @@ class Container implements IntrospectableContainerInterface, ResettableContainer
    */
   public function leaveScope($name) {
     if ('request' !== $name) {
-      @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+      @trigger_error('The ' . __METHOD__ . ' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
     }
 
     throw new \BadMethodCallException(sprintf("'%s' is not supported by Drupal 8.", __FUNCTION__));
@@ -617,7 +617,7 @@ class Container implements IntrospectableContainerInterface, ResettableContainer
 
     $name = $scope->getName();
     if ('request' !== $name) {
-      @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+      @trigger_error('The ' . __METHOD__ . ' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
     }
     throw new \BadMethodCallException(sprintf("'%s' is not supported by Drupal 8.", __FUNCTION__));
   }
@@ -627,7 +627,7 @@ class Container implements IntrospectableContainerInterface, ResettableContainer
    */
   public function hasScope($name) {
     if ('request' !== $name) {
-      @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+      @trigger_error('The ' . __METHOD__ . ' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
     }
 
     throw new \BadMethodCallException(sprintf("'%s' is not supported by Drupal 8.", __FUNCTION__));
@@ -637,7 +637,7 @@ class Container implements IntrospectableContainerInterface, ResettableContainer
    * {@inheritdoc}
    */
   public function isScopeActive($name) {
-    @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+    @trigger_error('The ' . __METHOD__ . ' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
 
     throw new \BadMethodCallException(sprintf("'%s' is not supported by Drupal 8.", __FUNCTION__));
   }

core/lib/Drupal/Component/Diff/Diff.php

@@ -168,4 +168,5 @@ class Diff {
   public function getEdits() {
     return $this->edits;
   }
+
 }

core/lib/Drupal/Component/Diff/DiffFormatter.php

@@ -18,7 +18,7 @@ class DiffFormatter {
   /**
    * Should a block header be shown?
    */
-  var $show_header = TRUE;
+  public $show_header = TRUE;
 
   /**
    * Number of leading context "lines" to preserve.
@@ -26,7 +26,7 @@ class DiffFormatter {
    * This should be left at zero for this class, but subclasses
    * may want to set this to other values.
    */
-  var $leading_context_lines = 0;
+  public $leading_context_lines = 0;
 
   /**
    * Number of trailing context "lines" to preserve.
@@ -34,7 +34,7 @@ class DiffFormatter {
    * This should be left at zero for this class, but subclasses
    * may want to set this to other values.
    */
-  var $trailing_context_lines = 0;
+  public $trailing_context_lines = 0;
 
   /**
    * Format a diff.

core/lib/Drupal/Component/Diff/Engine/DiffEngine.php

@@ -453,4 +453,5 @@ class DiffEngine {
       }
     }
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/DiffOp.php

@@ -8,9 +8,9 @@ namespace Drupal\Component\Diff\Engine;
  * @subpackage DifferenceEngine
  */
 class DiffOp {
-  var $type;
-  var $orig;
-  var $closing;
+  public $type;
+  public $orig;
+  public $closing;
 
   public function reverse() {
     trigger_error('pure virtual', E_USER_ERROR);
@@ -23,4 +23,5 @@ class DiffOp {
   public function nclosing() {
     return $this->closing ? sizeof($this->closing) : 0;
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/DiffOpAdd.php

@@ -8,7 +8,7 @@ namespace Drupal\Component\Diff\Engine;
  * @subpackage DifferenceEngine
  */
 class DiffOpAdd extends DiffOp {
-  var $type = 'add';
+  public $type = 'add';
 
   public function __construct($lines) {
     $this->closing = $lines;
@@ -18,4 +18,5 @@ class DiffOpAdd extends DiffOp {
   public function reverse() {
     return new DiffOpDelete($this->closing);
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/DiffOpChange.php

@@ -8,7 +8,7 @@ namespace Drupal\Component\Diff\Engine;
  * @subpackage DifferenceEngine
  */
 class DiffOpChange extends DiffOp {
-  var $type = 'change';
+  public $type = 'change';
 
   public function __construct($orig, $closing) {
     $this->orig = $orig;
@@ -18,4 +18,5 @@ class DiffOpChange extends DiffOp {
   public function reverse() {
     return new DiffOpChange($this->closing, $this->orig);
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/DiffOpCopy.php

@@ -8,7 +8,7 @@ namespace Drupal\Component\Diff\Engine;
  * @subpackage DifferenceEngine
  */
 class DiffOpCopy extends DiffOp {
-  var $type = 'copy';
+  public $type = 'copy';
 
   public function __construct($orig, $closing = FALSE) {
     if (!is_array($closing)) {
@@ -21,4 +21,5 @@ class DiffOpCopy extends DiffOp {
   public function reverse() {
     return new DiffOpCopy($this->closing, $this->orig);
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/DiffOpDelete.php

@@ -8,7 +8,7 @@ namespace Drupal\Component\Diff\Engine;
  * @subpackage DifferenceEngine
  */
 class DiffOpDelete extends DiffOp {
-  var $type = 'delete';
+  public $type = 'delete';
 
   public function __construct($lines) {
     $this->orig = $lines;
@@ -18,4 +18,5 @@ class DiffOpDelete extends DiffOp {
   public function reverse() {
     return new DiffOpAdd($this->orig);
   }
+
 }

core/lib/Drupal/Component/Diff/Engine/HWLDFWordAccumulator.php

@@ -5,8 +5,7 @@ namespace Drupal\Component\Diff\Engine;
 use Drupal\Component\Utility\Unicode;
 
 /**
- *  Additions by Axel Boldt follow, partly taken from diff.php, phpwiki-1.3.3
- *
+ * Additions by Axel Boldt follow, partly taken from diff.php, phpwiki-1.3.3
  */
 
 /**
@@ -76,4 +75,5 @@ class HWLDFWordAccumulator {
     $this->_flushLine('~done');
     return $this->lines;
   }
+
 }

core/lib/Drupal/Component/Diff/MappedDiff.php

@@ -21,15 +21,12 @@ class MappedDiff extends Diff {
    *
    * @param $from_lines array An array of strings.
    *   (Typically these are lines from a file.)
-   *
    * @param $to_lines array An array of strings.
-   *
    * @param $mapped_from_lines array This array should
    *   have the same size number of elements as $from_lines.
    *   The elements in $mapped_from_lines and
    *   $mapped_to_lines are what is actually compared
    *   when computing the diff.
-   *
    * @param $mapped_to_lines array This array should
    *   have the same number of elements as $to_lines.
    */
@@ -55,4 +52,5 @@ class MappedDiff extends Diff {
       }
     }
   }
+
 }

core/lib/Drupal/Component/Diff/WordLevelDiff.php

@@ -78,4 +78,5 @@ class WordLevelDiff extends MappedDiff {
     $lines = $closing->getLines();
     return $lines;
   }
+
 }

core/lib/Drupal/Component/FileSystem/LICENSE.txt

@@ -0,0 +1,339 @@
+        GNU GENERAL PUBLIC LICENSE
+           Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+          Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
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+
+      How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

core/lib/Drupal/Component/FileSystem/README.txt

@@ -0,0 +1,12 @@
+The Drupal FileSystem Component
+
+Thanks for using this Drupal component.
+
+You can participate in its development on Drupal.org, through our issue system:
+https://www.drupal.org/project/issues/drupal
+
+You can get the full Drupal repo here:
+https://www.drupal.org/project/drupal/git-instructions
+
+You can browse the full Drupal repo here:
+http://cgit.drupalcode.org/drupal

core/lib/Drupal/Component/FileSystem/TESTING.txt

@@ -0,0 +1,18 @@
+HOW-TO: Test this Drupal component
+
+In order to test this component, you'll need to get the entire Drupal repo and
+run the tests there.
+
+You'll find the tests under core/tests/Drupal/Tests/Component.
+
+You can get the full Drupal repo here:
+https://www.drupal.org/project/drupal/git-instructions
+
+You can find more information about running PHPUnit tests with Drupal here:
+https://www.drupal.org/node/2116263
+
+Each component in the Drupal\Component namespace has its own annotated test
+group. You can use this group to run only the tests for this component. Like
+this:
+
+$ ./vendor/bin/phpunit -c core --group FileSystem

core/lib/Drupal/Component/FileSystem/composer.json

@@ -0,0 +1,15 @@
+{
+  "name": "drupal/core-filesystem",
+  "description": "FileSystem.",
+  "keywords": ["drupal"],
+  "homepage": "https://www.drupal.org/project/drupal",
+  "license": "GPL-2.0+",
+  "require": {
+    "php": ">=5.5.9"
+  },
+  "autoload": {
+    "psr-4": {
+      "Drupal\\Component\\FileSystem\\": ""
+    }
+  }
+}

core/lib/Drupal/Component/Gettext/PoHeader.php

@@ -559,4 +559,5 @@ class PoHeader {
     }
     return (int) $element_stack[0];
   }
+
 }

core/lib/Drupal/Component/Gettext/PoItem.php

@@ -160,7 +160,7 @@ class PoItem {
   /**
    * Set the comment of this translation.
    *
-   * @param String $comment
+   * @param string $comment
    */
   function setComment($comment) {
     $this->_comment = $comment;
@@ -181,7 +181,7 @@ class PoItem {
     if (isset($values['translation'])) {
       $this->setTranslation($values['translation']);
     }
-    if (isset($values['comment'])){
+    if (isset($values['comment'])) {
       $this->setComment($values['comment']);
     }
     if (isset($this->_source) &&

core/lib/Drupal/Component/Graph/Graph.php

@@ -154,4 +154,5 @@ class Graph {
     // topological order if the graph is acyclic.
     $state['last_visit_order'][] = $start;
   }
+
 }

core/lib/Drupal/Component/Plugin/Derivative/DeriverBase.php

@@ -31,4 +31,5 @@ abstract class DeriverBase implements DeriverInterface {
   public function getDerivativeDefinitions($base_plugin_definition) {
     return $this->derivatives;
   }
+
 }

core/lib/Drupal/Component/Plugin/Discovery/DerivativeDiscoveryDecorator.php

@@ -240,4 +240,5 @@ class DerivativeDiscoveryDecorator implements DiscoveryInterface {
   public function __call($method, $args) {
     return call_user_func_array(array($this->decorated, $method), $args);
   }
+
 }

core/lib/Drupal/Component/Plugin/Discovery/StaticDiscovery.php

@@ -33,4 +33,5 @@ class StaticDiscovery implements DiscoveryInterface {
   public function deleteDefinition($plugin) {
     unset($this->definitions[$plugin]);
   }
+
 }

core/lib/Drupal/Component/Plugin/Discovery/StaticDiscoveryDecorator.php

@@ -63,4 +63,5 @@ class StaticDiscoveryDecorator extends StaticDiscovery {
   public function __call($method, $args) {
     return call_user_func_array(array($this->decorated, $method), $args);
   }
+
 }

core/lib/Drupal/Component/Plugin/Exception/InvalidDecoratedMethod.php

@@ -7,6 +7,5 @@ use \BadMethodCallException;
 /**
  * Exception thrown when a decorator's _call() method is triggered, but the
  * decorated object does not contain the requested method.
- *
  */
 class InvalidDecoratedMethod extends BadMethodCallException implements ExceptionInterface { }

core/lib/Drupal/Component/Plugin/Exception/InvalidPluginDefinitionException.php

@@ -17,10 +17,12 @@ class InvalidPluginDefinitionException extends PluginException {
   /**
    * Constructs a InvalidPluginDefinitionException.
    *
+   * For the remaining parameters see \Exception.
+   *
    * @param string $plugin_id
    *   The plugin ID of the mapper.
    *
-   * @see \Exception for the remaining parameters.
+   * @see \Exception
    */
   public function __construct($plugin_id, $message = '', $code = 0, \Exception $previous = NULL) {
     $this->pluginId = $plugin_id;

core/lib/Drupal/Component/Plugin/Exception/PluginNotFoundException.php

@@ -10,10 +10,12 @@ class PluginNotFoundException extends PluginException {
   /**
    * Construct an PluginNotFoundException exception.
    *
+   * For the remaining parameters see \Exception.
+   *
    * @param string $plugin_id
    *   The plugin ID that was not found.
    *
-   * @see \Exception for remaining parameters.
+   * @see \Exception
    */
   public function __construct($plugin_id, $message = '', $code = 0, \Exception $previous = NULL) {
     if (empty($message)) {

core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php

@@ -71,7 +71,6 @@ class DefaultFactory implements FactoryInterface {
    * @throws \Drupal\Component\Plugin\Exception\PluginException
    *   Thrown when there is no class specified, the class doesn't exist, or
    *   the class does not implement the specified required interface.
-   *
    */
   public static function getPluginClass($plugin_id, $plugin_definition = NULL, $required_interface = NULL) {
     $missing_class_message = sprintf('The plugin (%s) did not specify an instance class.', $plugin_id);
@@ -104,4 +103,5 @@ class DefaultFactory implements FactoryInterface {
 
     return $class;
   }
+
 }

core/lib/Drupal/Component/Plugin/Factory/ReflectionFactory.php

@@ -76,4 +76,5 @@ class ReflectionFactory extends DefaultFactory {
     }
     return $arguments;
   }
+
 }

core/lib/Drupal/Component/Plugin/PluginBase.php

@@ -92,4 +92,5 @@ abstract class PluginBase implements PluginInspectionInterface, DerivativeInspec
   public function getPluginDefinition() {
     return $this->pluginDefinition;
   }
+
 }

core/lib/Drupal/Component/ProxyBuilder/ProxyBuilder.php

@@ -92,7 +92,6 @@ EOS;
         // class.
         if ($parent_interfaces = $interface->getInterfaceNames()) {
           foreach ($parent_interfaces as $parent_interface) {
-            if (isset($interfaces[$parent_interface])) {}
             unset($interfaces[$parent_interface]);
           }
         }

core/lib/Drupal/Component/Transliteration/PhpTransliteration.php

@@ -90,7 +90,7 @@ class PhpTransliteration implements TransliterationInterface {
       $replacement = $character;
       if (($range1 && !in_array($code, $exclusions_range1)) || ($range2 && !in_array($code, $exclusions_range2))) {
         $to_add = $this->lookupReplacement($code, 'xyz');
-        if(strlen($to_add) === 1) {
+        if (strlen($to_add) === 1) {
           $replacement = $to_add;
         }
       }
@@ -280,4 +280,5 @@ class PhpTransliteration implements TransliterationInterface {
     // Save this data.
     $this->genericMap[$bank] = $base;
   }
+
 }

core/lib/Drupal/Component/Transliteration/TransliterationInterface.php

@@ -46,4 +46,5 @@ interface TransliterationInterface {
    *   characters, and unknown characters replaced with $unknown_character.
    */
   public function transliterate($string, $langcode = 'en', $unknown_character = '?', $max_length = NULL);
+
 }

core/lib/Drupal/Component/Utility/Random.php

@@ -149,7 +149,7 @@ class Random {
     $num_cons = count($cons);
     $word = '';
 
-    while(strlen($word) < $length){
+    while (strlen($word) < $length) {
       $word .= $cons[mt_rand(0, $num_cons - 1)] . $vowels[mt_rand(0, $num_vowels - 1)];
     }
 
@@ -251,7 +251,7 @@ class Random {
   public function paragraphs($paragraph_count = 12) {
     $output = '';
     for ($i = 1; $i <= $paragraph_count; $i++) {
-      $output .= $this->sentences(mt_rand(20, 60)) ."\n\n";
+      $output .= $this->sentences(mt_rand(20, 60)) . "\n\n";
     }
     return $output;
   }
@@ -291,7 +291,7 @@ class Random {
     $smaller_dimension = ($smaller_dimension % 2) ? $smaller_dimension : $smaller_dimension;
     imageellipse($im, $width / 2, $height / 2, $smaller_dimension, $smaller_dimension, $color);
 
-    $save_function = 'image'. ($extension == 'jpg' ? 'jpeg' : $extension);
+    $save_function = 'image' . ($extension == 'jpg' ? 'jpeg' : $extension);
     $save_function($im, $destination);
     return $destination;
   }

core/lib/Drupal/Component/Utility/UserAgent.php

@@ -122,8 +122,7 @@ class UserAgent {
           $qvalue = $ua_langcodes[$prefix];
           break;
         }
-      }
-      while ($prefix = substr($prefix, 0, strrpos($prefix, '-')));
+      } while ($prefix = substr($prefix, 0, strrpos($prefix, '-')));
 
       // Find the best match.
       if ($qvalue > $max_qvalue) {

core/lib/Drupal/Component/Utility/Xss.php

@@ -116,7 +116,6 @@ class Xss {
    * @ingroup sanitization
    *
    * @see \Drupal\Component\Utility\Xss::getAdminTagList()
-   *
    */
   public static function filterAdmin($string) {
     return static::filter($string, static::$adminTags);
@@ -344,4 +343,5 @@ class Xss {
   public static function getHtmlTagList() {
     return static::$htmlTags;
   }
+
 }

core/lib/Drupal/Component/Uuid/Com.php

@@ -15,4 +15,5 @@ class Com implements UuidInterface {
     // Remove {} wrapper and make lower case to keep result consistent.
     return strtolower(trim(com_create_guid(), '{}'));
   }
+
 }

core/lib/Drupal/Component/Uuid/Pecl.php

@@ -13,4 +13,5 @@ class Pecl implements UuidInterface {
   public function generate() {
     return uuid_create(UUID_TYPE_DEFAULT);
   }
+
 }

core/lib/Drupal/Component/Uuid/UuidInterface.php

@@ -14,4 +14,5 @@ interface UuidInterface {
    *   A 16 byte integer represented as a hex string formatted with 4 hyphens.
    */
   public function generate();
+
 }

core/lib/Drupal/Core/Access/AccessManager.php

@@ -169,5 +169,4 @@ class AccessManager implements AccessManagerInterface {
     return $service_access;
   }
 
-
 }

core/lib/Drupal/Core/Access/CheckProviderInterface.php

@@ -61,4 +61,5 @@ interface CheckProviderInterface {
    * @return array
    */
   public function getChecksNeedRequest();
+
 }

core/lib/Drupal/Core/Ajax/CloseDialogCommand.php

@@ -46,4 +46,5 @@ class CloseDialogCommand implements CommandInterface {
       'persist' => $this->persist,
     );
   }
+
 }

core/lib/Drupal/Core/Ajax/CommandInterface.php

@@ -16,4 +16,5 @@ interface CommandInterface {
    * Return an array to be run through json_encode and sent to the client.
    */
   public function render();
+
 }

core/lib/Drupal/Core/Ajax/DataCommand.php

@@ -48,7 +48,7 @@ class DataCommand implements CommandInterface {
    *   A CSS selector for the elements to which the data will be attached.
    * @param string $name
    *   The key of the data to be attached to elements matched by the selector.
-   * @param type $value
+   * @param mixed $value
    *   The value of the data to be attached to elements matched by the selector.
    */
   public function __construct($selector, $name, $value) {

core/lib/Drupal/Core/Ajax/OpenModalDialogCommand.php

@@ -33,4 +33,5 @@ class OpenModalDialogCommand extends OpenDialogCommand {
     $dialog_options['modal'] = TRUE;
     parent::__construct('#drupal-modal', $title, $content, $dialog_options, $settings);
   }
+
 }

core/lib/Drupal/Core/Ajax/RemoveCommand.php

@@ -29,7 +29,6 @@ class RemoveCommand implements CommandInterface {
    * Constructs a RemoveCommand object.
    *
    * @param string $selector
-   *
    */
   public function __construct($selector) {
     $this->selector = $selector;

core/lib/Drupal/Core/Ajax/SetDialogTitleCommand.php

@@ -23,4 +23,5 @@ class SetDialogTitleCommand extends SetDialogOptionCommand {
     $this->optionName = 'title';
     $this->optionValue = $title;
   }
+
 }

core/lib/Drupal/Core/Archiver/ArchiverInterface.php

@@ -56,4 +56,5 @@ interface ArchiverInterface {
    *   An array of file names relative to the root of the archive.
    */
   public function listContents();
+
 }

core/lib/Drupal/Core/Archiver/Tar.php

@@ -87,4 +87,5 @@ class Tar implements ArchiverInterface {
   public function getArchive() {
     return $this->tar;
   }
+
 }

core/lib/Drupal/Core/Archiver/Zip.php

@@ -89,4 +89,5 @@ class Zip implements ArchiverInterface {
   public function getArchive() {
     return $this->zip;
   }
+
 }

core/lib/Drupal/Core/Asset/AssetDumper.php

@@ -19,7 +19,7 @@ class AssetDumper implements AssetDumperInterface {
   public function dump($data, $file_extension) {
     // Prefix filename to prevent blocking by firewalls which reject files
     // starting with "ad*".
-    $filename = $file_extension. '_' . Crypt::hashBase64($data) . '.' . $file_extension;
+    $filename = $file_extension . '_' . Crypt::hashBase64($data) . '.' . $file_extension;
     // Create the css/ or js/ path within the files folder.
     $path = 'public://' . $file_extension;
     $uri = $path . '/' . $filename;

core/lib/Drupal/Core/Asset/AssetResolver.php

@@ -214,7 +214,7 @@ class AssetResolver implements AssetResolverInterface {
     // hook_library_info_alter(). Additionally add the current language to
     // support translation of JavaScript files via hook_js_alter().
     $libraries_to_load = $this->getLibrariesToLoad($assets);
-    $cid = 'js:' . $theme_info->getName() . ':' .  $this->languageManager->getCurrentLanguage()->getId() . ':' . Crypt::hashBase64(serialize($libraries_to_load) . serialize($assets->getLibraries())) . (int) (count($assets->getSettings()) > 0) . (int) $optimize;
+    $cid = 'js:' . $theme_info->getName() . ':' . $this->languageManager->getCurrentLanguage()->getId() . ':' . Crypt::hashBase64(serialize($libraries_to_load) . serialize($assets->getLibraries())) . (int) (count($assets->getSettings()) > 0) . (int) $optimize;
 
     if ($cached = $this->cache->get($cid)) {
       list($js_assets_header, $js_assets_footer, $settings, $settings_in_header) = $cached->data;

core/lib/Drupal/Core/Asset/CssOptimizer.php

@@ -163,7 +163,7 @@ class CssOptimizer implements AssetOptimizerInterface {
     $directory = dirname($filename);
     // If the file is in the current directory, make sure '.' doesn't appear in
     // the url() path.
-    $directory = $directory == '.' ? '' : $directory .'/';
+    $directory = $directory == '.' ? '' : $directory . '/';
 
     // Alter all internal url() paths. Leave external paths alone. We don't need
     // to normalize absolute paths here because that will be done later.

core/lib/Drupal/Core/Cache/BackendChain.php

@@ -19,7 +19,6 @@ namespace Drupal\Core\Cache;
  *
  * @ingroup cache
  */
-
 class BackendChain implements CacheBackendInterface, CacheTagsInvalidatorInterface {
 
   /**

core/lib/Drupal/Core/Cache/Cache.php

@@ -76,10 +76,10 @@ class Cache {
    */
   public static function mergeMaxAges($a = Cache::PERMANENT, $b = Cache::PERMANENT) {
     // If one of the values is Cache::PERMANENT, return the other value.
-    if ($a === Cache::PERMANENT){
+    if ($a === Cache::PERMANENT) {
       return $b;
     }
-    if ($b === Cache::PERMANENT){
+    if ($b === Cache::PERMANENT) {
       return $a;
     }
 

core/lib/Drupal/Core/Cache/CacheBackendInterface.php

@@ -215,4 +215,5 @@ interface CacheBackendInterface {
    * Remove a cache bin.
    */
   public function removeBin();
+
 }

core/lib/Drupal/Core/Cache/CacheTagsChecksumInterface.php

@@ -54,4 +54,5 @@ interface CacheTagsChecksumInterface {
    * This is only used by tests.
    */
   public function reset();
+
 }

core/lib/Drupal/Core/Cache/CacheableMetadata.php

@@ -6,7 +6,6 @@ namespace Drupal\Core\Cache;
  * Defines a generic class for passing cacheability metadata.
  *
  * @ingroup cache
- *
  */
 class CacheableMetadata implements RefinableCacheableDependencyInterface {
 

core/lib/Drupal/Core/Cache/Context/CacheContextsManager.php

@@ -98,7 +98,6 @@ class CacheContextsManager {
    * @return \Drupal\Core\Cache\Context\ContextCacheKeys
    *   The ContextCacheKeys object containing the converted cache keys and
    *   cacheability metadata.
-   *
    */
   public function convertTokensToKeys(array $context_tokens) {
     assert('$this->assertValidTokens($context_tokens)');
@@ -195,7 +194,7 @@ class CacheContextsManager {
             $ancestor_found = TRUE;
           }
 
-        } while(!$ancestor_found && strpos($ancestor, '.') !== FALSE);
+        } while (!$ancestor_found && strpos($ancestor, '.') !== FALSE);
         if (!$ancestor_found) {
           $optimized_content_tokens[] = $context_token;
         }

core/lib/Drupal/Core/Cache/Context/LanguagesCacheContext.php

@@ -8,7 +8,7 @@ use Drupal\Core\Language\LanguageManagerInterface;
 /**
  * Defines the LanguagesCacheContext service, for "per language" caching.
  */
-class LanguagesCacheContext implements CalculatedCacheContextInterface  {
+class LanguagesCacheContext implements CalculatedCacheContextInterface {
 
   /**
    * The language manager.

core/lib/Drupal/Core/Cache/Context/QueryArgsCacheContext.php

@@ -27,8 +27,17 @@ class QueryArgsCacheContext extends RequestStackCacheContextBase implements Calc
     if ($query_arg === NULL) {
       return $this->requestStack->getCurrentRequest()->getQueryString();
     }
+    elseif ($this->requestStack->getCurrentRequest()->query->has($query_arg)) {
+      $value = $this->requestStack->getCurrentRequest()->query->get($query_arg);
+      if ($value !== '') {
+        return $value;
+      }
+      else {
+        return '?valueless?';
+      }
+    }
     else {
-      return $this->requestStack->getCurrentRequest()->query->get($query_arg);
+      return NULL;
     }
   }
 

core/lib/Drupal/Core/Cache/DatabaseBackend.php

@@ -477,4 +477,5 @@ class DatabaseBackend implements CacheBackendInterface {
     );
     return $schema;
   }
+
 }

core/lib/Drupal/Core/Cache/ListCacheBinsPass.php

@@ -28,4 +28,5 @@ class ListCacheBinsPass implements CompilerPassInterface {
     $container->setParameter('cache_bins', $cache_bins);
     $container->setParameter('cache_default_bin_backends', $cache_default_bin_backends);
   }
+
 }

core/lib/Drupal/Core/Cache/MemoryCounterBackend.php

@@ -9,7 +9,6 @@ namespace Drupal\Core\Cache;
  * many times a cache entry was set or requested.
  *
  * @todo On the longrun this backend should be replaced by phpunit mock objects.
- *
  */
 class MemoryCounterBackend extends MemoryBackend {
 
@@ -49,7 +48,6 @@ class MemoryCounterBackend extends MemoryBackend {
    *
    * @param string $function
    *   The called function.
-   *
    * @param string $cid
    *   The cache ID of the cache entry to increase the counter.
    */

core/lib/Drupal/Core/Cache/NullBackend.php

@@ -88,4 +88,5 @@ class NullBackend implements CacheBackendInterface {
    * {@inheritdoc}
    */
   public function removeBin() {}
+
 }

core/lib/Drupal/Core/Cache/PhpBackend.php

@@ -211,7 +211,7 @@ class PhpBackend implements CacheBackendInterface {
    * {@inheritdoc}
    */
   public function invalidateAll() {
-    foreach($this->storage()->listAll() as $cidhash) {
+    foreach ($this->storage()->listAll() as $cidhash) {
       $this->invalidatebyHash($cidhash);
     }
   }

core/lib/Drupal/Core/Config/BootstrapConfigStorageFactory.php

@@ -56,4 +56,5 @@ class BootstrapConfigStorageFactory {
   public static function getFileStorage() {
     return new FileStorage(config_get_config_directory(CONFIG_ACTIVE_DIRECTORY));
   }
+
 }

core/lib/Drupal/Core/Config/ConfigCollectionInfo.php

@@ -30,7 +30,7 @@ class ConfigCollectionInfo extends Event {
    *
    * @throws \InvalidArgumentException
    *   Exception thrown if $collection is equal to
-   *   \Drupal\Core\Config\StorageInterface::DEFAULT_COLLECTION
+   *   \Drupal\Core\Config\StorageInterface::DEFAULT_COLLECTION.
    */
   public function addCollection($collection, ConfigFactoryOverrideInterface $override_service = NULL) {
     if ($collection == StorageInterface::DEFAULT_COLLECTION) {

core/lib/Drupal/Core/Config/ConfigFactory.php

@@ -271,7 +271,7 @@ class ConfigFactory implements ConfigFactoryInterface, EventSubscriberInterface
     // Because get() adds overrides both from $GLOBALS and from
     // $this->configFactoryOverrides, add cache keys for each.
     $keys[] = 'global_overrides';
-    foreach($this->configFactoryOverrides as $override) {
+    foreach ($this->configFactoryOverrides as $override) {
       $keys[] = $override->getCacheSuffix();
     }
     return $keys;

core/lib/Drupal/Core/Config/ConfigModuleOverridesEvent.php

@@ -99,4 +99,5 @@ class ConfigModuleOverridesEvent extends Event {
     }
     return $this;
   }
+
 }

core/lib/Drupal/Core/Config/DatabaseStorage.php

@@ -252,7 +252,8 @@ class DatabaseStorage implements StorageInterface {
    * Implements Drupal\Core\Config\StorageInterface::decode().
    *
    * @throws ErrorException
-   *   unserialize() triggers E_NOTICE if the string cannot be unserialized.
+   *   The unserialize() call will trigger E_NOTICE if the string cannot
+   *   be unserialized.
    */
   public function decode($raw) {
     $data = @unserialize($raw);
@@ -325,5 +326,4 @@ class DatabaseStorage implements StorageInterface {
     }
   }
 
-
 }

core/lib/Drupal/Core/Config/Entity/ConfigDependencyDeleteFormTrait.php

@@ -121,4 +121,5 @@ trait ConfigDependencyDeleteFormTrait {
     }
 
   }
+
 }

core/lib/Drupal/Core/Config/Entity/ConfigDependencyManager.php

@@ -228,7 +228,7 @@ class ConfigDependencyManager {
     $graph = $this->getGraph();
 
     foreach ($entities_to_check as $entity) {
-      if (isset($graph[$entity]) && !empty($graph[$entity]['reverse_paths'])){
+      if (isset($graph[$entity]) && !empty($graph[$entity]['reverse_paths'])) {
         foreach ($graph[$entity]['reverse_paths'] as $dependency => $value) {
           $dependent_entities[$dependency] = $this->data[$dependency];
         }

core/lib/Drupal/Core/Config/Entity/ConfigEntityType.php

@@ -127,11 +127,11 @@ class ConfigEntityType extends EntityType implements ConfigEntityTypeInterface {
   /**
    * {@inheritdoc}
    *
-   * @see \Drupal\Core\Config\Entity\ConfigEntityStorage.
-   *
    * @throws \Drupal\Core\Config\Entity\Exception\ConfigEntityStorageClassException
    *   Exception thrown when the provided class is not an instance of
    *   \Drupal\Core\Config\Entity\ConfigEntityStorage.
+   *
+   * @see \Drupal\Core\Config\Entity\ConfigEntityStorage
    */
   protected function checkStorageClass($class) {
     if (!is_a($class, 'Drupal\Core\Config\Entity\ConfigEntityStorage', TRUE)) {

core/lib/Drupal/Core/Config/ExtensionInstallStorage.php

@@ -131,4 +131,5 @@ class ExtensionInstallStorage extends InstallStorage {
     }
     return $this->folders;
   }
+
 }

core/lib/Drupal/Core/Config/Schema/ConfigSchemaDiscovery.php

@@ -42,4 +42,5 @@ class ConfigSchemaDiscovery implements DiscoveryInterface {
     }
     return $definitions;
   }
+
 }

core/lib/Drupal/Core/Config/Schema/SchemaCheckTrait.php

@@ -133,4 +133,5 @@ trait SchemaCheckTrait {
     // No errors found.
     return array();
   }
+
 }

core/lib/Drupal/Core/Config/StorageComparerInterface.php

@@ -67,10 +67,10 @@ interface StorageComparerInterface {
    *
    * Until the changelist has been calculated this will always be FALSE.
    *
-   * @see \Drupal\Core\Config\StorageComparerInterface::createChangelist().
-   *
    * @return bool
    *   TRUE if there are changes to process and FALSE if not.
+   *
+   * @see \Drupal\Core\Config\StorageComparerInterface::createChangelist()
    */
   public function hasChanges();
 

core/lib/Drupal/Core/Controller/ControllerResolver.php

@@ -46,7 +46,6 @@ class ControllerResolver extends BaseControllerResolver implements ControllerRes
    *
    * @param \Symfony\Bridge\PsrHttpMessage\HttpMessageFactoryInterface $http_message_factory
    *   The PSR-7 converter.
-   *
    * @param \Drupal\Core\DependencyInjection\ClassResolverInterface $class_resolver
    *   The class resolver.
    */

core/lib/Drupal/Core/CoreServiceProvider.php

@@ -39,8 +39,7 @@ use Symfony\Component\DependencyInjection\Compiler\PassConfig;
  *
  * @ingroup container
  */
-class CoreServiceProvider implements ServiceProviderInterface  {
-
+class CoreServiceProvider implements ServiceProviderInterface {
   /**
    * {@inheritdoc}
    */

core/lib/Drupal/Core/Database/Driver/mysql/Connection.php

@@ -79,7 +79,8 @@ class Connection extends DatabaseConnection {
   public function query($query, array $args = array(), $options = array()) {
     try {
       return parent::query($query, $args, $options);
-    } catch (DatabaseException $e) {
+    }
+    catch (DatabaseException $e) {
       if ($e->getPrevious()->errorInfo[1] == 1153) {
         // If a max_allowed_packet error occurs the message length is truncated.
         // This should prevent the error from recurring if the exception is

core/lib/Drupal/Core/Database/Driver/mysql/Insert.php

@@ -58,4 +58,5 @@ class Insert extends QueryInsert {
 
     return $query;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php

@@ -374,7 +374,7 @@ class Connection extends DatabaseConnection {
    *   A string representing the savepoint name. By default,
    *   "mimic_implicit_commit" is used.
    *
-   * @see Drupal\Core\Database\Connection::pushTransaction().
+   * @see Drupal\Core\Database\Connection::pushTransaction()
    */
   public function addSavepoint($savepoint_name = 'mimic_implicit_commit') {
     if ($this->inTransaction()) {
@@ -389,7 +389,7 @@ class Connection extends DatabaseConnection {
    *   A string representing the savepoint name. By default,
    *   "mimic_implicit_commit" is used.
    *
-   * @see Drupal\Core\Database\Connection::popTransaction().
+   * @see Drupal\Core\Database\Connection::popTransaction()
    */
   public function releaseSavepoint($savepoint_name = 'mimic_implicit_commit') {
     if (isset($this->transactionLayers[$savepoint_name])) {

core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php

@@ -282,4 +282,5 @@ class Tasks extends InstallTasks {
     }
     return $form;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php

@@ -844,6 +844,7 @@ class Schema extends DatabaseSchema {
     // Modify the hash so it's safe to use in PostgreSQL identifiers.
     return strtr($hash, array('+' => '_', '/' => '_', '=' => ''));
   }
+
 }
 
 /**

core/lib/Drupal/Core/Database/Driver/pgsql/Select.php

@@ -152,6 +152,7 @@ class Select extends QuerySelect {
 
     return $result;
   }
+
 }
 
 /**

core/lib/Drupal/Core/Database/Driver/pgsql/Truncate.php

@@ -25,4 +25,5 @@ class Truncate extends QueryTruncate {
 
     return $result;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/sqlite/Connection.php

@@ -41,7 +41,7 @@ class Connection extends DatabaseConnection {
    *
    * @var bool
    */
-  var $tableDropped = FALSE;
+  public $tableDropped = FALSE;
 
   /**
    * Constructs a \Drupal\Core\Database\Driver\sqlite\Connection object.

core/lib/Drupal/Core/Database/Driver/sqlite/Install/Tasks.php

@@ -103,4 +103,5 @@ class Tasks extends InstallTasks {
     }
     return TRUE;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/sqlite/Select.php

@@ -12,4 +12,5 @@ class Select extends QuerySelect {
     // SQLite does not support FOR UPDATE so nothing to do.
     return $this;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/sqlite/Statement.php

@@ -141,4 +141,5 @@ class Statement extends StatementPrefetch implements StatementInterface {
 
     return $return;
   }
+
 }

core/lib/Drupal/Core/Database/Driver/sqlite/Truncate.php

@@ -17,4 +17,5 @@ class Truncate extends QueryTruncate {
 
     return $comments . 'DELETE FROM {' . $this->connection->escapeTable($this->table) . '} ';
   }
+
 }

core/lib/Drupal/Core/Database/Log.php

@@ -163,4 +163,5 @@ class Log {
       }
     }
   }
+
 }

core/lib/Drupal/Core/Database/Query/AlterableInterface.php

@@ -87,4 +87,5 @@ interface AlterableInterface {
    *   The previously attached metadata object, or NULL if one doesn't exist.
    */
   public function getMetaData($key);
+
 }

core/lib/Drupal/Core/Database/Query/Condition.php

@@ -351,4 +351,5 @@ class Condition implements ConditionInterface, \Countable {
   public function orConditionGroup() {
     return $this->conditionGroupFactory('OR');
   }
+
 }

core/lib/Drupal/Core/Database/Query/ConditionInterface.php

@@ -191,4 +191,5 @@ interface ConditionInterface {
    * @return \Drupal\Core\Database\Query\ConditionInterface
    */
   public function orConditionGroup();
+
 }

core/lib/Drupal/Core/Database/Query/Delete.php

@@ -75,4 +75,5 @@ class Delete extends Query implements ConditionInterface {
 
     return $query;
   }
+
 }

core/lib/Drupal/Core/Database/Query/ExtendableInterface.php

@@ -25,4 +25,5 @@ interface ExtendableInterface {
    *   The extender object, which now contains a reference to this object.
    */
   public function extend($extender_name);
+
 }

core/lib/Drupal/Core/Database/Query/Insert.php

@@ -170,4 +170,5 @@ class Insert extends Query implements \Countable {
     }
     return TRUE;
   }
+
 }

core/lib/Drupal/Core/Database/Query/Merge.php

@@ -403,4 +403,5 @@ class Merge extends Query implements ConditionInterface {
       }
     }
   }
+
 }