From 08d95432601d1fef60867673746056f55e191092 Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Mon, 29 Apr 2024 16:19:28 +0200
Subject: Make IndexRange for ExpresssionState sortable by start value

---
 polymatrix/expressionstate/mixins.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/polymatrix/expressionstate/mixins.py b/polymatrix/expressionstate/mixins.py
index b80669f..f937137 100644
--- a/polymatrix/expressionstate/mixins.py
+++ b/polymatrix/expressionstate/mixins.py
@@ -16,6 +16,9 @@ class IndexRange(NamedTuple):
     start: int
     end: int
 
+    def __lt__(self, other):
+        return self.start < other.start
+
 
 class ExpressionStateMixin(
     StateCacheMixin,
-- 
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