From 52b698d9a274c814954c52aac2c813241397b107 Mon Sep 17 00:00:00 2001
From: joshvera <josh@joshvera.com>
Date: Wed, 23 Jan 2019 17:52:28 -0500
Subject: [PATCH] Implement eval for Alias so we don't eval the value twice

---
 src/Language/Python/Syntax.hs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Language/Python/Syntax.hs b/src/Language/Python/Syntax.hs
index 61a77d4f0..dc2bf7afe 100644
--- a/src/Language/Python/Syntax.hs
+++ b/src/Language/Python/Syntax.hs
@@ -126,6 +126,8 @@ toTuple :: Alias a -> (a, a)
 toTuple Alias{..} = (aliasValue, aliasName)
 
 instance Evaluatable Alias where
+  eval eval _ Alias{..} = eval aliasValue
+  ref _ ref Alias{..} = ref aliasValue
 
 -- | Import declarations (symbols are added directly to the calling environment).
 --