From 989a6eb0e63e5aa6442612949e85779dfc6ba665 Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Sat, 29 Sep 2018 11:39:19 -0500
Subject: [PATCH] mac: impl Debug and Display for MacAddress

Adding implementations of the `Debug` and `Display` traits to the
`MacAddress` struct allows creating string representations of these
objects.
---
 src/mac.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mac.rs b/src/mac.rs
index b87ae88..8f61141 100644
--- a/src/mac.rs
+++ b/src/mac.rs
@@ -37,6 +37,7 @@ impl error::Error for ParseError {
 }
 
 
+#[derive(Debug)]
 pub struct MacAddress {
     addr: [u8; 6],
 }
@@ -67,6 +68,17 @@ impl MacAddress {
 }
 
 
+impl fmt::Display for MacAddress {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        let s = self.addr.iter()
+            .map(|b| format!("{:x}", b))
+            .collect::<Vec<_>>()
+            .join(":");
+        write!(f, "{}", s)
+    }
+}
+
+
 #[cfg(test)]
 mod test {
     use super::*;