From 990d75cf7a9c6accd6d88ac9f51f21bc40d67bcf Mon Sep 17 00:00:00 2001
From: vaclavt <vt@stocksriddle.com>
Date: Mon, 10 Jan 2022 20:25:57 +0100
Subject: [PATCH] true and nil can be casted to string now

---
 ml.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ml.cpp b/ml.cpp
index 599d6d5..827f5b7 100644
--- a/ml.cpp
+++ b/ml.cpp
@@ -287,6 +287,10 @@ MlValue MlValue::cast_to_string() const {
 			return MlValue::string(std::to_string(stack_data.f));
 		case STRING:
 			return *this;
+		case TRUE:
+			return MlValue::string("#t");
+		case NIL:
+			return MlValue::string("nil");
 		default:
 			throw MlError(*this, MlEnvironment(), BAD_CAST_STRING);
 	}