From 24acbd65d03f550ff50aec28bfb12706d023ff90 Mon Sep 17 00:00:00 2001
From: Dmitriy Borovikov <dmitry@borovikov.name>
Date: Fri, 16 Feb 2024 23:43:10 +0300
Subject: [PATCH] Fix unaligned access bug.

---
 Plugins/Msg2swiftCmdPlugin/plugin.swift     | 20 ++++++++++++++++++++
 Sources/CDRCodable/Decoder/CDRDecoder.swift |  2 +-
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 Plugins/Msg2swiftCmdPlugin/plugin.swift

diff --git a/Plugins/Msg2swiftCmdPlugin/plugin.swift b/Plugins/Msg2swiftCmdPlugin/plugin.swift
new file mode 100644
index 0000000..0ad4ee8
--- /dev/null
+++ b/Plugins/Msg2swiftCmdPlugin/plugin.swift
@@ -0,0 +1,20 @@
+import PackagePlugin
+import Foundation
+
+@main
+struct Msg2swiftCmdPlugin: CommandPlugin {
+    func performCommand(context: PluginContext, arguments: [String]) throws {
+        let uicTool = try context.tool(named: "msg2swift").path
+        let process = try Process.run(URL(fileURLWithPath: uicTool.string), arguments: arguments)
+        process.waitUntilExit()
+        
+        guard
+            process.terminationReason == .exit,
+            process.terminationStatus == 0
+        else {
+            let problem = "\(process.terminationReason):\(process.terminationStatus)"
+            Diagnostics.error("msg2swift invocation failed: \(problem)")
+            return
+        }
+    }
+}
diff --git a/Sources/CDRCodable/Decoder/CDRDecoder.swift b/Sources/CDRCodable/Decoder/CDRDecoder.swift
index 8904a5f..8ea85e3 100644
--- a/Sources/CDRCodable/Decoder/CDRDecoder.swift
+++ b/Sources/CDRCodable/Decoder/CDRDecoder.swift
@@ -141,7 +141,7 @@ extension DataStore {
         defer {  
             cursor = cursor.advanced(by: stride)
         }
-        return data.withUnsafeBytes{ $0.load(fromByteOffset: cursor - beginIndex, as: T.self) }
+        return data.withUnsafeBytes{ $0.loadUnaligned(fromByteOffset: cursor - beginIndex, as: T.self) }
     }
     
     @inline(__always)