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/binary.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/dhall/src/binary.rs b/dhall/src/binary.rs
index fbd343b..08bdba4 100644
--- a/dhall/src/binary.rs
+++ b/dhall/src/binary.rs
@@ -1,8 +1,9 @@
 use dhall_core::*;
 use itertools::*;
+use std::rc::Rc;
 use serde_cbor::value::value as cbor;
 
-type ParsedExpr = Box<Expr<X, Import>>;
+type ParsedExpr = Rc<Expr<X, Import>>;
 
 #[derive(Debug)]
 pub enum DecodeError {
-- 
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