From 9dc875e5e67835ad1974b52491a4b7af072d52a3 Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Sat, 2 Mar 2024 18:17:10 +0100
Subject: Add Expr.node to ease iteration expression tree node children

---
 mdpoly/abc.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mdpoly/abc.py b/mdpoly/abc.py
index 7ac21dd..c60311a 100644
--- a/mdpoly/abc.py
+++ b/mdpoly/abc.py
@@ -33,6 +33,9 @@ class Expr(Protocol):
         name = self.__class__.__qualname__
         return f"{name}(left={self.left}, right={self.right})"
 
+    def nodes(self) -> Sequence[Self]:
+        return self.left, self.right
+
     def leaves(self) -> Sequence[Leaf]:
         if isinstance(self.left, Leaf):
             yield self.left
-- 
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