From 905b7928bf853b91723778b116ee4ceee1880326 Mon Sep 17 00:00:00 2001
From: "Matthieu Le brazidec (r3v2d0g)" <r3v2d0g@jesus.gg>
Date: Wed, 11 Dec 2024 10:19:50 +0000
Subject: [PATCH] Add a `bincode2` feature

This adds a new `bincode2` feature which when enabled derives
`bincode::Encode` and `bincode::Decode` (from `bincode@2.0.0-rc.3`)
for `NonEmpty<T>`.

The goal of this is to avoid having to use `#[bincode(with_serde)]` when
having a field containing `NonEmpty<T>`.
---
 Cargo.toml |  2 ++
 src/lib.rs | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 27de4f6..6c6ad4c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,12 +10,14 @@ repository = "https://github.com/cloudhead/nonempty"
 [dependencies]
 serde = { features = ["derive", "alloc"], default-features = false, optional = true, version = "1" }
 arbitrary = { features = ["derive"], optional = true, version = "1" }
+bincode = { optional = true, version = "2.0.0-rc.3" }
 
 [features]
 default = ["std"]
 std = []
 serialize = ["dep:serde"]
 arbitrary = ["dep:arbitrary"]
+bincode2 = ["dep:bincode"]
 
 [dev-dependencies]
 serde_json = "1"
diff --git a/src/lib.rs b/src/lib.rs
index 761de76..15815b0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -80,8 +80,11 @@
 //!
 //! * `serialize`: `serde` support.
 //! * `arbitrary`: `arbitrary` support.
+//! * `bincode2`" `bincode@2.0.0-rc.3` support.
 #[cfg(feature = "arbitrary")]
 use arbitrary::Arbitrary;
+#[cfg(feature = "bincode2")]
+use bincode::{Decode, Encode};
 #[cfg(feature = "serialize")]
 use serde::{
     ser::{SerializeSeq, Serializer},
@@ -139,7 +142,15 @@ macro_rules! nonempty {
 /// Non-empty vector.
 #[cfg_attr(feature = "serialize", derive(Deserialize))]
 #[cfg_attr(feature = "arbitrary", derive(Arbitrary))]
+#[cfg_attr(feature = "bincode2", derive(Encode, Decode))]
 #[cfg_attr(feature = "serialize", serde(try_from = "Vec<T>"))]
+#[cfg_attr(
+    feature = "bincode2",
+    bincode(
+        encode_bounds = "T: Encode + 'static",
+        decode_bounds = "T: Decode + 'static",
+    )
+)]
 #[derive(Clone, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub struct NonEmpty<T> {
     pub head: T,