From c121f20620499e9b7c497c82c7321474cbf59e1d Mon Sep 17 00:00:00 2001
From: Joel Kronqvist <joel.kronqvist@iki.fi>
Date: Sun, 10 Aug 2025 14:36:02 +0300
Subject: Implemented aka. Changed Nil:st type to NilType from an empty list.

---
 src/type/mod.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/type/mod.rs')

diff --git a/src/type/mod.rs b/src/type/mod.rs
index eba817b..9c2f89c 100644
--- a/src/type/mod.rs
+++ b/src/type/mod.rs
@@ -23,6 +23,8 @@ pub enum Type {
 
     List(Vec<Type>),
 
+    NilType,
+
     VecOf(Box<Type>),
     VecType, // constructor
 
@@ -108,6 +110,7 @@ impl Type {
             QuoteTy => Ok(()),
             VecType => Ok(()),
             LetType => Ok(()),
+	    NilType => Ok(()),
             Arrow(a, b) => b.is_concrete().and_then(|_ok| a.is_concrete()),
             List(v) => {
                 let mut res = Ok(());
-- 
cgit v1.2.3