From 6654e801833d5dab3c04af065646ba727f9542e9 Mon Sep 17 00:00:00 2001
From: Vamsi Madduluri <vamsi@dewonderstruck.com>
Date: Mon, 2 Dec 2024 02:29:40 +0530
Subject: [PATCH] Add Sendable Conformance to Field and Reference Types (#353)

* Add Sendable conformance to Field property wrapper

Makes the Field<C> property wrapper Sendable-compliant to better support concurrent operations and Swift's actor isolation system.

* fix: make Field property wrapper conditionally Sendable

- Remove direct Sendable conformance from Field struct
- Add conditional Sendable conformance via extension where C: Sendable

* fix: add Sendable conformance to Reference struct
---
 Sources/Meow/KeyPathModel/KeyPathModels.swift | 3 +++
 Sources/Meow/Reference.swift                  | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Sources/Meow/KeyPathModel/KeyPathModels.swift b/Sources/Meow/KeyPathModel/KeyPathModels.swift
index 23192a6a..23c57f90 100644
--- a/Sources/Meow/KeyPathModel/KeyPathModels.swift
+++ b/Sources/Meow/KeyPathModel/KeyPathModels.swift
@@ -361,6 +361,9 @@ public struct Field<C: Codable>: Codable, _QueryableFieldRepresentable {
     }
 }
 
+// Add conditional Sendable conformance
+extension Field: Sendable where C: Sendable {}
+
 extension Field: Equatable where C: Equatable {
     public static func ==(lhs: Self, rhs: Self) -> Bool {
         lhs.wrappedValue == rhs.wrappedValue
diff --git a/Sources/Meow/Reference.swift b/Sources/Meow/Reference.swift
index 8a2c61b6..d4d4be2c 100644
--- a/Sources/Meow/Reference.swift
+++ b/Sources/Meow/Reference.swift
@@ -13,7 +13,7 @@ import NIO
 ///         let post: Post = try await postRef.resolve(in: req.meow)
 ///         return post
 ///     }
-public struct Reference<M: ReadableModel>: Resolvable, Hashable, PrimitiveEncodable {
+public struct Reference<M: ReadableModel>: Resolvable, Hashable, PrimitiveEncodable, Sendable where M.Identifier: Sendable {
     /// The referenced id
     public let reference: M.Identifier