Minor code cleanup

README.md

@@ -5,7 +5,7 @@
 A reimplementation of the [Kilo](https://viewsourcecode.org/snaptoken/kilo/index.html) tutorial in PHP. Also has some inspiration from the [Hecto](https://www.philippflenker.com/hecto/) text editor tutorial.  Requires PHP 8 and FFI.
 
 ## Requirements
-* PHP 8
+* PHP 8.1
 * FFI enabled
 
 ## Implementation notes:

src/Enum/Highlight.php

@@ -186,9 +186,6 @@ enum Highlight implements JsonSerializable {
 			T_STRING_CAST,
 			T_UNSET_CAST => Highlight::Keyword2,
 
-			// Invalid syntax
-			T_BAD_CHARACTER => Highlight::Invalid,
-
 			// Comments
 			T_DOC_COMMENT => Highlight::MultiLineComment,
 

src/Row.php

@@ -61,15 +61,15 @@ class Row {
 		/**
 		 * The document that this row belongs to
 		 */
-		private Document $parent,
+		private readonly Document $parent,
 
 		/**
-		 * @var string The raw characters in the row
+		 * The raw characters in the row
 		 */
 		private string $chars,
 
 		/**
-		 * @var int The line number of the current row
+		 * The line number of the current row
 		 */
 		public int $idx,
 	) {}

src/Tokens/PHP8.php

@@ -66,7 +66,7 @@ class PHP8 extends PhpToken {
 		return $this->tokens;
 	}
 
-	protected function processObjectToken(\PhpToken $token): void
+	protected function processObjectToken(PhpToken $token): void
 	{
 		$currentLine = $token->line;
 		$char = tabs_to_spaces($token->text);