From 5fd42a9e70cfbb3e9351d21e9e23df7b0d6feea6 Mon Sep 17 00:00:00 2001
From: Adam Joseph <adam@westernsemico.com>
Date: Fri, 8 Dec 2023 01:41:22 -0800
Subject: feat(tvix/eval): impl DoubleEndedIter for OwnedAttrsIterator

Change-Id: I4bd85dbe9c27047f4abbdeff4e2b796e9bcab3a1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10211
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
---
 tvix/eval/src/value/attrs.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'tvix/eval/src/value/attrs.rs')

diff --git a/tvix/eval/src/value/attrs.rs b/tvix/eval/src/value/attrs.rs
index 10bdee4eba3a..03183810f24b 100644
--- a/tvix/eval/src/value/attrs.rs
+++ b/tvix/eval/src/value/attrs.rs
@@ -615,3 +615,13 @@ impl ExactSizeIterator for OwnedAttrsIterator {
         }
     }
 }
+
+impl DoubleEndedIterator for OwnedAttrsIterator {
+    fn next_back(&mut self) -> Option<Self::Item> {
+        match &mut self.0 {
+            IntoIterRepr::Empty => None,
+            IntoIterRepr::Finite(inner) => inner.next_back(),
+            IntoIterRepr::Im(inner) => inner.next_back(),
+        }
+    }
+}
-- 
cgit 1.4.1