From 9fd33f4864310c017a1013f8d18635c1e784f0ab Mon Sep 17 00:00:00 2001
From: mryouse
Date: Fri, 29 Jul 2022 19:56:22 +0000
Subject: have builtins return :nil when appropriate

---
 neb/structs.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'neb/structs.py')

diff --git a/neb/structs.py b/neb/structs.py
index 2423a69..db71aa0 100644
--- a/neb/structs.py
+++ b/neb/structs.py
@@ -169,6 +169,11 @@ class List:
     def __str__(self):
         return "(" +  " ".join(f"{arg}" for arg in self.args) + ")"
 
+class Nil(List):
+    def __init__(self):
+        self.args = []
+        self.type_ = ALL_TYPES[":nil"]
+
 # function things
 class Arg:
 
-- 
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