Fix code style

src/DocBlock/Tags/InvalidTag.php

@@ -9,6 +9,13 @@ use phpDocumentor\Reflection\DocBlock\Tag;
 use ReflectionClass;
 use ReflectionFunction;
 use Throwable;
+use function array_map;
+use function array_walk_recursive;
+use function get_class;
+use function get_resource_type;
+use function is_object;
+use function is_resource;
+use function sprintf;
 
 /**
  * This class represents an exception during the tag creation
@@ -77,24 +84,26 @@ final class InvalidTag implements Tag
         $traceProperty = (new ReflectionClass('Exception'))->getProperty('trace');
         $traceProperty->setAccessible(true);
 
-        $flatten = static function (&$value) {
-            if ($value instanceof Closure) {
-                $closureReflection = new ReflectionFunction($value);
-                $value             = sprintf(
-                    '(Closure at %s:%s)',
-                    $closureReflection->getFileName(),
-                    $closureReflection->getStartLine()
-                );
-            } elseif (is_object($value)) {
-                $value = sprintf('object(%s)', get_class($value));
-            } elseif (is_resource($value)) {
-                $value = sprintf('resource(%s)', get_resource_type($value));
-            }
-        };
+        $flatten =
+            /** @param mixed $value */
+            static function (&$value) : void {
+                if ($value instanceof Closure) {
+                    $closureReflection = new ReflectionFunction($value);
+                    $value             = sprintf(
+                        '(Closure at %s:%s)',
+                        $closureReflection->getFileName(),
+                        $closureReflection->getStartLine()
+                    );
+                } elseif (is_object($value)) {
+                    $value = sprintf('object(%s)', get_class($value));
+                } elseif (is_resource($value)) {
+                    $value = sprintf('resource(%s)', get_resource_type($value));
+                }
+            };
 
         do {
             $trace = array_map(
-                static function($call) use ($flatten) {
+                static function (array $call) use ($flatten) : array {
                     array_walk_recursive($call['args'], $flatten);
 
                     return $call;
@@ -102,7 +111,8 @@ final class InvalidTag implements Tag
                 $exception->getTrace()
             );
             $traceProperty->setValue($exception, $trace);
-        } while ($exception = $exception->getPrevious());
+            $exception = $exception->getPrevious();
+        } while ($exception !== null);
 
         $traceProperty->setAccessible(false);
     }

tests/unit/DocBlock/Tags/InvalidTagTest.php

@@ -7,6 +7,10 @@ namespace phpDocumentor\Reflection\DocBlock\Tags;
 use Exception;
 use InvalidArgumentException;
 use PHPUnit\Framework\TestCase;
+use Throwable;
+use function fopen;
+use function serialize;
+use function unserialize;
 
 /**
  * @coversDefaultClass \phpDocumentor\Reflection\DocBlock\Tags\InvalidTag
@@ -38,7 +42,7 @@ final class InvalidTagTest extends TestCase
 
         self::assertSame('name', $tag->getName());
         self::assertSame('@name Body', $tag->render());
-        self::assertSame('Body', (string)$tag);
+        self::assertSame('Body', (string) $tag);
         self::assertSame($exception, $tag->getException());
     }
 
@@ -46,9 +50,9 @@ final class InvalidTagTest extends TestCase
     {
         try {
             $this->throwExceptionFromClosureWithClosureArgument();
-        } catch (Exception $e) {
+        } catch (Throwable $e) {
             $parentException = new Exception('test', 0, $e);
-            $tag       = InvalidTag::create('Body', 'name')->withError($parentException);
+            $tag             = InvalidTag::create('Body', 'name')->withError($parentException);
             self::assertSame('name', $tag->getName());
             self::assertSame('@name Body', $tag->render());
             self::assertSame($parentException, $tag->getException());
@@ -58,36 +62,36 @@ final class InvalidTagTest extends TestCase
         }
     }
 
-    private function throwExceptionFromClosureWithClosureArgument()
+    private function throwExceptionFromClosureWithClosureArgument() : void
     {
-        $function = function() {
+        $function = static function () : void {
             throw new InvalidArgumentException();
         };
 
         $function($function);
     }
 
-    public function testCreationWithErrorContainingResource()
+    public function testCreationWithErrorContainingResource() : void
     {
         try {
             $this->throwExceptionWithResourceArgument();
-        } catch (Exception $e) {
+        } catch (Throwable $e) {
             $parentException = new Exception('test', 0, $e);
-            $tag       = InvalidTag::create('Body', 'name')->withError($parentException);
+            $tag             = InvalidTag::create('Body', 'name')->withError($parentException);
             self::assertSame('name', $tag->getName());
             self::assertSame('@name Body', $tag->render());
             self::assertSame($parentException, $tag->getException());
             self::assertStringStartsWith(
                 'resource(stream)',
-                $tag->getException()->getPrevious()->getTrace()[0]['args'][0])
-            ;
+                $tag->getException()->getPrevious()->getTrace()[0]['args'][0]
+            );
             self::assertEquals($parentException, unserialize(serialize($parentException)));
         }
     }
 
-    private function throwExceptionWithResourceArgument()
+    private function throwExceptionWithResourceArgument() : void
     {
-        $function = function() {
+        $function = static function () : void {
             throw new InvalidArgumentException();
         };