From d9cf655f300dc1f40896a5bc1ef19f7486a7c08d Mon Sep 17 00:00:00 2001
From: Andrew Hickman <andrew.hickman1@sky.com>
Date: Wed, 2 Sep 2020 18:23:31 +0100
Subject: [PATCH] Fix build on wasm with `serialization` feature`

serde` only implements `Serialize` for `OsString` on
unix and windows.
---
 codespan/src/file.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/codespan/src/file.rs b/codespan/src/file.rs
index 56c1742..2ab5fb3 100644
--- a/codespan/src/file.rs
+++ b/codespan/src/file.rs
@@ -326,7 +326,11 @@ where
 
 /// A file that is stored in the database.
 #[derive(Debug, Clone)]
-#[cfg_attr(feature = "serialization", derive(Deserialize, Serialize))]
+// `Serialize` is only implemented on `OsString` for windows/unix
+#[cfg_attr(
+    all(feature = "serialization", any(windows, unix)),
+    derive(Deserialize, Serialize)
+)]
 struct File<Source> {
     /// The name of the file.
     name: OsString,