From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 12 May 2021 18:03:33 +0000 (+0100)
Subject: bundles: Implement some more traits for ZipIndex
X-Git-Tag: otter-0.6.0~328
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=0ee1dfdfbd1b4f5fb5c5c7ea47e6d77f34791e9b;p=otter.git

bundles: Implement some more traits for ZipIndex

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/bundles.rs b/src/bundles.rs
index 6f0f51e8..817b440f 100644
--- a/src/bundles.rs
+++ b/src/bundles.rs
@@ -281,7 +281,12 @@ pub struct IndexedZip {
 }
 deref_to_field_mut!{IndexedZip, ZipArchive, za }
 
+#[derive(Debug,Copy,Clone,Hash,Eq,PartialEq,Ord,PartialOrd)]
 pub struct ZipIndex(pub usize);
+impl Display for ZipIndex {
+  #[throws(fmt::Error)]
+  fn fmt(&self, f: &mut Formatter) { write!(f,"{}",self.0)? }
+}
 
 impl IndexedZip where {
   #[throws(LoadError)]