From 758dab7d4f6990a72d9f5794e3d6ca7989174848 Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Tue, 19 Jul 2022 11:59:10 +1000
Subject: [PATCH] Optimize `DesiredTargets`: Avoid mem alloc on `clone`

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
 src/target.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/target.rs b/src/target.rs
index fdca606f..c6bf8dd9 100644
--- a/src/target.rs
+++ b/src/target.rs
@@ -11,7 +11,7 @@ pub const TARGET: &str = env!("TARGET");
 #[derive(Debug, Clone)]
 enum DesiredTargetsInner {
     AutoDetect(Arc<OnceCell<Vec<String>>>),
-    Initialized(Vec<String>),
+    Initialized(Arc<Vec<String>>),
 }
 
 #[derive(Debug, Clone)]
@@ -19,7 +19,7 @@ pub struct DesiredTargets(DesiredTargetsInner);
 
 impl DesiredTargets {
     fn initialized(targets: Vec<String>) -> Self {
-        Self(DesiredTargetsInner::Initialized(targets))
+        Self(DesiredTargetsInner::Initialized(Arc::new(targets)))
     }
 
     fn auto_detect() -> Self {