[BUGFIX] Avoid implicit nullable parameters (#746)

This avoids deprecation warnings in PHP 8.4.

Unfortunately, we need to remove the native type declaration for
this to keep supporting PHP down to version 5.6.

Author: oliverklee

CHANGELOG.md

@@ -7,7 +7,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 ### Added
 
-- Add support for PHP 8.4 (#675, #701)
+- Add support for PHP 8.4 (#675, #701, #746)
 
 ### Changed
 

src/CSSList/AtRuleBlockList.php

@@ -57,9 +57,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         $sResult = $oOutputFormat->comments($this);
         $sResult .= $oOutputFormat->sBeforeAtRuleBlock;

src/CSSList/Document.php

@@ -159,7 +159,7 @@ public function createShorthands()
      *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat = null)
+    public function render($oOutputFormat = null)
     {
         if ($oOutputFormat === null) {
             $oOutputFormat = new OutputFormat();

src/CSSList/KeyFrame.php

@@ -68,9 +68,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         $sResult = $oOutputFormat->comments($this);
         $sResult .= "@{$this->vendorKeyFrame} {$this->animationName}{$oOutputFormat->spaceBeforeOpeningBrace()}{";

src/Comment/Comment.php

@@ -62,9 +62,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         return '/*' . $this->sComment . '*/';
     }

src/Parser.php

@@ -21,7 +21,7 @@ class Parser
      * @param Settings|null $oParserSettings
      * @param int $iLineNo the line number (starting from 1, not from 0)
      */
-    public function __construct($sText, Settings $oParserSettings = null, $iLineNo = 1)
+    public function __construct($sText, $oParserSettings = null, $iLineNo = 1)
     {
         if ($oParserSettings === null) {
             $oParserSettings = Settings::create();

src/Property/CSSNamespace.php

@@ -60,9 +60,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         return '@namespace ' . ($this->sPrefix === null ? '' : $this->sPrefix . ' ')
             . $this->mUrl->render($oOutputFormat) . ';';

src/Property/Charset.php

@@ -78,9 +78,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         return "{$oOutputFormat->comments($this)}@charset {$this->oCharset->render($oOutputFormat)};";
     }

src/Property/Import.php

@@ -79,9 +79,11 @@ public function __toString()
     }
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat)
+    public function render($oOutputFormat)
     {
         return $oOutputFormat->comments($this) . "@import " . $this->oLocation->render($oOutputFormat)
             . ($this->sMediaQuery === null ? '' : ' ' . $this->sMediaQuery) . ';';

src/Renderable.php

@@ -10,9 +10,11 @@ interface Renderable
     public function __toString();
 
     /**
+     * @param OutputFormat|null $oOutputFormat
+     *
      * @return string
      */
-    public function render(OutputFormat $oOutputFormat);
+    public function render($oOutputFormat);
 
     /**
      * @return int