adding missing validation of the default value for valueByName

Author: nyamsprod

src/Parameters.php

@@ -417,6 +417,10 @@ public function valueByName(
         bool|string $required = false,
         Bytes|Token|DisplayString|DateTimeImmutable|string|int|float|bool|null $default = null
     ): Bytes|Token|DisplayString|DateTimeImmutable|string|int|float|bool|null {
+        if (null !== $default && null === Type::tryFromVariable($default)) {
+            throw new SyntaxError('The default parameter is invalid.');
+        }
+
         try {
             return $this->getByName($name, $validate)->value();
         } catch (InvalidOffset $exception) {

tests/ItemTest.php

@@ -509,6 +509,16 @@ public function it_can_validate_the_item_parameter_value(): void
         self::assertFalse($item->parameterByName(name: 'b', default: false));
     }
 
+    #[Test]
+    public function it_will_fail_if_the_default_value_is_invalid_for_the_parameter_name(): void
+    {
+        $item = Item::fromAssociative(Token::fromString('babayaga'), ['a' => true]);
+
+        $this->expectException(SyntaxError::class);
+
+        $item->parameterByName('b', default:'bébé');
+    }
+
     #[Test]
     public function it_can_validate_and_trigger_a_custom_error_message(): void
     {