From de9404feda611d4f093fbbcc398bd56e54add8ea Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Fri, 22 Jul 2022 01:37:27 +1000
Subject: [PATCH] Optimize `Crates2Json`: Use `String` as key

to avoid cost of deserializing (`CrateVersionSource::from_str`).

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
 src/metafiles/v2.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/metafiles/v2.rs b/src/metafiles/v2.rs
index c7d0f337..0db24f14 100644
--- a/src/metafiles/v2.rs
+++ b/src/metafiles/v2.rs
@@ -12,7 +12,7 @@ use super::CrateVersionSource;
 
 #[derive(Clone, Debug, Default, Deserialize, Serialize)]
 pub struct Crates2Json {
-    pub installs: BTreeMap<CrateVersionSource, CrateInfo>,
+    pub installs: BTreeMap<String, CrateInfo>,
 }
 
 #[derive(Clone, Debug, Default, Deserialize, Serialize)]
@@ -52,7 +52,7 @@ impl Crates2Json {
     }
 
     pub fn insert(&mut self, cvs: CrateVersionSource, info: CrateInfo) {
-        self.installs.insert(cvs, info);
+        self.installs.insert(cvs.to_string(), info);
     }
 
     pub fn write(&self) -> Result<(), Crates2JsonParseError> {