Add type annotations for Charset

src/Property/Charset.php

@@ -2,14 +2,16 @@
 
 namespace Sabberworm\CSS\Property;
 
+use Sabberworm\CSS\Comment\Comment;
 use Sabberworm\CSS\OutputFormat;
 
 /**
- * Class representing an @charset rule.
+ * Class representing an `@charset` rule.
+ *
  * The following restrictions apply:
- * • May not be found in any CSSList other than the Document.
- * • May only appear at the very top of a Document’s contents.
- * • Must not appear more than once.
+ * - May not be found in any CSSList other than the Document.
+ * - May only appear at the very top of a Document’s contents.
+ * - Must not appear more than once.
  */
 class Charset implements AtRule
 {
@@ -24,7 +26,7 @@ class Charset implements AtRule
     protected $iLineNo;
 
     /**
-     * @var array
+     * @var array<array-key, Comment>
      */
     protected $aComments;
 
@@ -47,16 +49,27 @@ public function getLineNo()
         return $this->iLineNo;
     }
 
+    /**
+     * @param string $sCharset
+     *
+     * @return void
+     */
     public function setCharset($sCharset)
     {
         $this->sCharset = $sCharset;
     }
 
+    /**
+     * @return string
+     */
     public function getCharset()
     {
         return $this->sCharset;
     }
 
+    /**
+     * @return string
+     */
     public function __toString()
     {
         return $this->render(new OutputFormat());
@@ -88,16 +101,29 @@ public function atRuleArgs()
         return $this->sCharset;
     }
 
+    /**
+     * @param array<array-key, Comment> $aComments
+     *
+     * @return void
+     */
     public function addComments(array $aComments)
     {
         $this->aComments = array_merge($this->aComments, $aComments);
     }
 
+    /**
+     * @return array<array-key, Comment>
+     */
     public function getComments()
     {
         return $this->aComments;
     }
 
+    /**
+     * @param array<array-key, Comment> $aComments
+     *
+     * @return void
+     */
     public function setComments(array $aComments)
     {
         $this->aComments = $aComments;