Merge pull request #1034 from PHPCSStandards/phpcs-4.0/modernize/use-static-closures

Modernize: static closures should be static

Author: jrfnl

autoload.php

@@ -210,7 +210,7 @@ public static function determineLoadedClass($classesBeforeLoad, $classesAfterLoa
             // That way, at the end, only the "main" class just included will remain.
             $newClasses = array_reduce(
                 $newClasses,
-                function ($remaining, $current) {
+                static function ($remaining, $current) {
                     return array_diff($remaining, class_parents($current));
                 },
                 $newClasses

src/Reports/Summary.php

@@ -97,7 +97,7 @@ public function generate(
 
         uksort(
             $reportFiles,
-            function ($keyA, $keyB) {
+            static function ($keyA, $keyB) {
                 $pathPartsA = explode(DIRECTORY_SEPARATOR, $keyA);
                 $pathPartsB = explode(DIRECTORY_SEPARATOR, $keyB);
 

src/Util/Cache.php

@@ -107,7 +107,7 @@ public static function load(Ruleset $ruleset, Config $config)
         );
         $filter = new RecursiveCallbackFilterIterator(
             $di,
-            function ($file, $key, $iterator) {
+            static function ($file, $key, $iterator) {
                 // Skip non-php files.
                 $filename = $file->getFilename();
                 if ($file->isFile() === true && substr($filename, -4) !== '.php') {