case sensitive literals

Author: peldax

src/Tokenizer.php

@@ -199,12 +199,11 @@ private function createWordToken(\Graphpinator\Common\Location $location) : void
             TokenType::SCALAR => new \Graphpinator\Tokenizer\Token(TokenType::SCALAR, $location),
             TokenType::IMPLEMENTS => new \Graphpinator\Tokenizer\Token(TokenType::IMPLEMENTS, $location),
             TokenType::REPEATABLE => new \Graphpinator\Tokenizer\Token(TokenType::REPEATABLE, $location),
-            default => match (\strtolower($value)) { // case insensitive
-                TokenType::NULL => new \Graphpinator\Tokenizer\Token(TokenType::NULL, $location),
-                TokenType::TRUE => new \Graphpinator\Tokenizer\Token(TokenType::TRUE, $location),
-                TokenType::FALSE => new \Graphpinator\Tokenizer\Token(TokenType::FALSE, $location),
-                default => new \Graphpinator\Tokenizer\Token(TokenType::NAME, $location, $value),
-            },
+            // literals
+            TokenType::NULL => new \Graphpinator\Tokenizer\Token(TokenType::NULL, $location),
+            TokenType::TRUE => new \Graphpinator\Tokenizer\Token(TokenType::TRUE, $location),
+            TokenType::FALSE => new \Graphpinator\Tokenizer\Token(TokenType::FALSE, $location),
+            default => new \Graphpinator\Tokenizer\Token(TokenType::NAME, $location, $value),
         };
     }
 

tests/Unit/TokenizerTest.php

@@ -276,7 +276,7 @@ public function simpleDataProvider() : array
             [
                 'NULL',
                 [
-                    new \Graphpinator\Tokenizer\Token(TokenType::NULL, new \Graphpinator\Common\Location(1, 1)),
+                    new \Graphpinator\Tokenizer\Token(TokenType::NAME, new \Graphpinator\Common\Location(1, 1), 'NULL'),
                 ],
             ],
             [
@@ -306,7 +306,7 @@ public function simpleDataProvider() : array
             [
                 'FALSE true',
                 [
-                    new \Graphpinator\Tokenizer\Token(TokenType::FALSE, new \Graphpinator\Common\Location(1, 1)),
+                    new \Graphpinator\Tokenizer\Token(TokenType::NAME, new \Graphpinator\Common\Location(1, 1), 'FALSE'),
                     new \Graphpinator\Tokenizer\Token(TokenType::TRUE, new \Graphpinator\Common\Location(1, 7)),
                 ],
             ],