From adaafdd7043507cbceae65e78c38954e47103b5c Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Mon, 11 May 2020 11:33:45 -0400
Subject: Fix some clippy lints

---
 src/frontier/image.rs | 4 ++++
 src/frontier/mean.rs  | 4 ++++
 src/frontier/min.rs   | 4 ++++
 3 files changed, 12 insertions(+)

(limited to 'src/frontier')

diff --git a/src/frontier/image.rs b/src/frontier/image.rs
index 3655580..5642297 100644
--- a/src/frontier/image.rs
+++ b/src/frontier/image.rs
@@ -51,6 +51,10 @@ impl<C: ColorSpace> Frontier for ImageFrontier<C> {
         self.len - self.deleted
     }
 
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
     fn place(&mut self, rgb8: Rgb8) -> Option<(u32, u32)> {
         let color = C::from(rgb8);
 
diff --git a/src/frontier/mean.rs b/src/frontier/mean.rs
index 889c5ba..6a32b97 100644
--- a/src/frontier/mean.rs
+++ b/src/frontier/mean.rs
@@ -129,6 +129,10 @@ impl<C: ColorSpace> Frontier for MeanFrontier<C> {
         self.len - self.deleted
     }
 
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
     fn place(&mut self, rgb8: Rgb8) -> Option<(u32, u32)> {
         let color = C::from(rgb8);
         let (x, y) = self.forest.nearest(&color).map(|n| n.item.pos)?;
diff --git a/src/frontier/min.rs b/src/frontier/min.rs
index b22b290..269f3b7 100644
--- a/src/frontier/min.rs
+++ b/src/frontier/min.rs
@@ -136,6 +136,10 @@ impl<C: ColorSpace, R: Rng> Frontier for MinFrontier<C, R> {
         self.len - self.deleted
     }
 
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
     fn place(&mut self, rgb8: Rgb8) -> Option<(u32, u32)> {
         let color = C::from(rgb8);
         let (x, y) = self
-- 
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