From 4c3ea7d418047c15eda141349ec1a41a09509f59 Mon Sep 17 00:00:00 2001
From: Alex Hoppen <ahoppen@apple.com>
Date: Sat, 30 Aug 2025 09:24:00 +0200
Subject: [PATCH] Assert that no two message types with the same name are
 registered

---
 Sources/SWBProtocol/Message.swift | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Sources/SWBProtocol/Message.swift b/Sources/SWBProtocol/Message.swift
index c32a01ad..bd0eb5de 100644
--- a/Sources/SWBProtocol/Message.swift
+++ b/Sources/SWBProtocol/Message.swift
@@ -1222,6 +1222,14 @@ public struct IPCMessage: Serializable, Sendable {
     /// Reverse name mapping.
     static let messageNameToID: [String: any Message.Type] = {
         var result = [String: any Message.Type]()
+        #if DEBUG
+        var seenMessageNames: Set<String> = []
+        for messageType in messageTypes {
+            if !seenMessageNames.insert(messageType.name).inserted {
+                assertionFailure("Multiple message types registered for same name: \(messageType.name)")
+            }
+        }
+        #endif
         for type in IPCMessage.messageTypes {
             result[type.name] = type
         }