From 7bb6582e0149e263f94df8407a2b34bb5a8a616c Mon Sep 17 00:00:00 2001
From: Sasha Koshka <supergriffin64@gmail.com>
Date: Wed, 17 Aug 2022 01:07:12 -0400
Subject: [PATCH] Added default nil argument kind

---
 parser/tree-tostring.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/parser/tree-tostring.go b/parser/tree-tostring.go
index e9d5b0e..f3253ae 100644
--- a/parser/tree-tostring.go
+++ b/parser/tree-tostring.go
@@ -143,8 +143,8 @@ func (phrase *Phrase) ToString (indent int, breakLine bool) (output string) {
 
 func (argument *Argument) ToString (indent int, breakLine bool) (output string) {
 	if !breakLine { indent = 0 }
-	if argument.value == nil {
-		output += "NIL ARGUMENT"
+	if argument.kind == ArgumentKindNil {
+		output += "NIL-ARGUMENT"
 		if breakLine { output += "\n" }
 		return
 	}