From 05454ab9936514409e1b3c97e36f3fb476d532ba Mon Sep 17 00:00:00 2001
From: Nadrieril
Date: Sat, 16 Mar 2019 23:21:51 +0100
Subject: Use Rc instead of Box in AST to allow structural sharing

Closes #29
---
 dhall/src/normalize.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'dhall/src/normalize.rs')

diff --git a/dhall/src/normalize.rs b/dhall/src/normalize.rs
index c49d313..40112f1 100644
--- a/dhall/src/normalize.rs
+++ b/dhall/src/normalize.rs
@@ -2,6 +2,7 @@
 use dhall_core::core::*;
 use dhall_generator::dhall_expr;
 use std::fmt;
+use std::rc::Rc;
 
 /// Reduce an expression to its weak head normal form, i.e. normalize
 /// just enough to get the first constructor of the final expression
-- 
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