From 8e8c336f93becbc394b99e978cc3d8145e7e9d7c Mon Sep 17 00:00:00 2001
From: Graydon Hoare <graydon@mozilla.com>
Date: Wed, 9 Mar 2011 20:14:19 -0800
Subject: Implement deep structural comparison through boxes and sequences.

---
 src/comp/middle/ty.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/comp/middle/ty.rs')

diff --git a/src/comp/middle/ty.rs b/src/comp/middle/ty.rs
index 958d0b78..bd3e3263 100644
--- a/src/comp/middle/ty.rs
+++ b/src/comp/middle/ty.rs
@@ -373,6 +373,14 @@ fn get_element_type(@t ty, uint i) -> @t {
     fail;
 }
 
+fn type_is_box(@t ty) -> bool {
+    alt (ty.struct) {
+        case (ty_box(_)) { ret true; }
+        case (_) { ret false; }
+    }
+    fail;
+}
+
 fn type_is_boxed(@t ty) -> bool {
     alt (ty.struct) {
         case (ty_str) { ret true; }
-- 
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