From f27d604d93ce583d4404e1874664e08382ea2f00 Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Fri, 6 Jan 2023 23:42:28 +0800
Subject: Save before system restart.

I am about to re-start my system, so I save before any crashes
happen.
---
 forest/src/default.rs | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

(limited to 'forest/src/default.rs')

diff --git a/forest/src/default.rs b/forest/src/default.rs
index 456413b..5e438d4 100644
--- a/forest/src/default.rs
+++ b/forest/src/default.rs
@@ -61,14 +61,6 @@ impl<NodeLabel: GraphLabel, EdgeLabel: GraphLabel> Graph for DefaultForest<NodeL
     }
 }
 
-impl<NodeLabel: GraphLabel, EdgeLabel: GraphLabel> ExtGraph
-    for DefaultForest<NodeLabel, EdgeLabel>
-{
-    fn extend(&mut self, edges: impl IntoIterator<Item = usize>) -> Result<usize, GraphError> {
-        self.graph.extend(edges)
-    }
-}
-
 #[derive(Debug)]
 pub struct LabelIter<'a> {
     set_iter: Iter<'a, usize>,
@@ -88,11 +80,7 @@ impl<'a> Iterator for LabelIter<'a> {
 
 impl<'a> ExactSizeIterator for LabelIter<'a> {
     fn len(&self) -> usize {
-        let (lower, upper) = self.size_hint();
-        // Note: This assertion is overly defensive, but it checks the
-        // invariant guaranteed by the trait.
-        debug_assert!(upper == Some(lower));
-        lower
+        self.set_iter.len()
     }
 }
 
-- 
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