From eeaab210498a0dd3a539e3a928a54108b63d3aed Mon Sep 17 00:00:00 2001
From: laizy <aochyi@126.com>
Date: Fri, 10 Dec 2021 01:45:13 +0800
Subject: [PATCH] add buffer for file reading (#662)

---
 ethers-solc/src/config.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ethers-solc/src/config.rs b/ethers-solc/src/config.rs
index 4f97dd1e..c88f4395 100644
--- a/ethers-solc/src/config.rs
+++ b/ethers-solc/src/config.rs
@@ -354,6 +354,7 @@ impl ArtifactOutput for MinimalCombinedArtifacts {
 
     fn read_cached_artifact(path: impl AsRef<Path>) -> Result<Self::Artifact> {
         let file = fs::File::open(path.as_ref())?;
+        let file = io::BufReader::new(file);
         Ok(serde_json::from_reader(file)?)
     }