1 files changed, 6 insertions, 0 deletions
diff --git a/token.go b/token.go
index d4a5d33..20d4727 100644
--- a/token.go
+++ b/token.go
@@ -100,6 +100,10 @@ func (k tokenKind) String() string {
 		return "func"
 	case ret:
 		return "return"
+	case constKeyword:
+		return "const"
+	case mut:
+		return "mut"
 	}
 
 	return "invalid token"
@@ -153,6 +157,8 @@ const (
 	export
 	function
 	ret
+	constKeyword
+	mut
 )
 
 type token struct {