From f1b89c117cffebed4b2b8eb2d221fd9b25c1d3d1 Mon Sep 17 00:00:00 2001
From: Ivan Boldyrev <lispnik@gmail.com>
Date: Wed, 29 Dec 2021 19:33:06 +0300
Subject: [PATCH] refactor(client): use `Box<str>` inside `dns::Name` (#2727)

Use Box<str> in hyper::client::connect::dns::Name, so
its size is 16 bytes, not 24 bytes.  As Name never
change its contents, read-only Box<str> is perfectly OK.
---
 src/client/connect/dns.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/client/connect/dns.rs b/src/client/connect/dns.rs
index 968d8567cb..e4465078b3 100644
--- a/src/client/connect/dns.rs
+++ b/src/client/connect/dns.rs
@@ -38,7 +38,7 @@ pub(super) use self::sealed::Resolve;
 /// A domain name to resolve into IP addresses.
 #[derive(Clone, Hash, Eq, PartialEq)]
 pub struct Name {
-    host: String,
+    host: Box<str>,
 }
 
 /// A resolver using blocking `getaddrinfo` calls in a threadpool.
@@ -58,7 +58,7 @@ pub struct GaiFuture {
 }
 
 impl Name {
-    pub(super) fn new(host: String) -> Name {
+    pub(super) fn new(host: Box<str>) -> Name {
         Name { host }
     }
 
@@ -85,7 +85,7 @@ impl FromStr for Name {
 
     fn from_str(host: &str) -> Result<Self, Self::Err> {
         // Possibly add validation later
-        Ok(Name::new(host.to_owned()))
+        Ok(Name::new(host.into()))
     }
 }