From 7311f77f29e5a404b791db9514169d13a255f92b Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Fri, 22 Jul 2022 20:19:04 +1000
Subject: [PATCH] Impl new fn `CratesToml::write_to_writer`

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
 src/metafiles/v1.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/metafiles/v1.rs b/src/metafiles/v1.rs
index 5ef58a34..0401a82a 100644
--- a/src/metafiles/v1.rs
+++ b/src/metafiles/v1.rs
@@ -46,6 +46,15 @@ impl CratesToml {
         self.write_to_path(Self::default_path()?)
     }
 
+    pub fn write_to_writer<W: io::Write>(
+        &self,
+        mut writer: W,
+    ) -> Result<u64, CratesTomlParseError> {
+        let data = toml::to_vec(&self)?;
+        writer.write_all(&data)?;
+        Ok(data.len().try_into().unwrap())
+    }
+
     pub fn write_to_path(&self, path: impl AsRef<Path>) -> Result<(), CratesTomlParseError> {
         fs::write(path, &toml::to_vec(&self)?)?;
         Ok(())