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Author: StyleCIBot

src/Console/ClishCommand.php

@@ -77,14 +77,14 @@ public function execute()
         $this->doHighlight($code);
     }
 
-    protected function doHighlight(string $code = null)
+    protected function doHighlight(?string $code = null)
     {
         if (!$this->output || $this->echo) {
             $this->app()->io()->raw((new Highlighter)->highlight($code, ['lineNo' => $this->lineNo]));
         }
     }
 
-    protected function doExport(string $code = null)
+    protected function doExport(?string $code = null)
     {
         if (!$this->output) {
             return;

src/Highlighter.php

@@ -23,7 +23,7 @@ public function __toString(): string
         return $this->highlight();
     }
 
-    public function highlight(string $code = null, array $options = []): string
+    public function highlight(?string $code = null, array $options = []): string
     {
         $this->setOptions($options);
 

src/Pretty.php

@@ -33,7 +33,7 @@ abstract class Pretty
     /** @var bool Indicates if it has been already configured. */
     protected static $configured;
 
-    public function __construct(string $code = null)
+    public function __construct(?string $code = null)
     {
         $this->code = $code ?? '';
     }
@@ -67,7 +67,7 @@ protected function setOptions(array $options)
         }
     }
 
-    protected function parse(string $code = null)
+    protected function parse(?string $code = null)
     {
         $this->reset();