.NET 9 forward compatibility changes

Content.Server/Announcements/AnnounceCommand.cs

@@ -28,7 +28,8 @@ public void Execute(IConsoleShell shell, string argStr, string[] args)
             }
             else
             {
-                var message = string.Join(' ', new ArraySegment<string>(args, 1, args.Length-1));
+                // Explicit IEnumerable<string> due to overload ambiguity on .NET 9
+                var message = string.Join(' ', (IEnumerable<string>)new ArraySegment<string>(args, 1, args.Length-1));
                 chat.DispatchGlobalAnnouncement(message, args[0], colorOverride: Color.Gold);
             }
             shell.WriteLine("Sent!");

Content.Server/Cargo/Systems/PricingSystem.cs

@@ -424,7 +424,7 @@ public record struct PriceCalculationEvent()
 [ByRefEvent]
 public record struct EstimatedPriceCalculationEvent()
 {
-    public EntityPrototype Prototype;
+    public required EntityPrototype Prototype;
 
     /// <summary>
     /// The total price of the entity.

Content.Server/NPC/Pathfinding/PathfindingSystem.Breadth.cs

@@ -11,8 +11,8 @@ public sealed partial class PathfindingSystem
     /// </summary>
     public record struct BreadthPathArgs()
     {
-        public Vector2i Start;
-        public List<Vector2i> Ends;
+        public required Vector2i Start;
+        public required List<Vector2i> Ends;
 
         public bool Diagonals = false;
 

Content.Server/NPC/Pathfinding/PathfindingSystem.Splines.cs

@@ -19,7 +19,7 @@ public record struct SplinePathResult()
         public List<Vector2i> Points = new();
 
         public List<Vector2i> Path = new();
-        public Dictionary<Vector2i, Vector2i> CameFrom;
+        public Dictionary<Vector2i, Vector2i>? CameFrom;
     }
 
     public record struct SplinePathArgs(SimplePathArgs Args)

Content.Server/NPC/Pathfinding/PathfindingSystem.Widen.cs

@@ -84,6 +84,6 @@ public record struct WidenArgs()
 
         public float MaxWiden = 7f;
 
-        public List<Vector2i> Path;
+        public required List<Vector2i> Path;
     }
 }

Content.Shared/Forensics/Events.cs

@@ -66,5 +66,5 @@ public record struct GenerateDnaEvent()
     /// <summary>
     /// The generated DNA.
     /// </summary>
-    public string DNA;
+    public required string DNA;
 }

Content.Shared/Silicons/StationAi/StationAiVisionSystem.cs

@@ -56,6 +56,7 @@ public override void Initialize()
             EntManager = EntityManager,
             Maps = _maps,
             System = this,
+            VisibleTiles = _singleTiles,
         };
     }
 
@@ -278,7 +279,7 @@ private bool IsCorner(
     /// </summary>
     private record struct SeedJob() : IRobustJob
     {
-        public StationAiVisionSystem System;
+        public required StationAiVisionSystem System;
 
         public Entity<MapGridComponent> Grid;
         public Box2 ExpandedBounds;
@@ -293,14 +294,14 @@ private record struct ViewJob() : IParallelRobustJob
     {
         public int BatchSize => 1;
 
-        public IEntityManager EntManager;
-        public SharedMapSystem Maps;
-        public StationAiVisionSystem System;
+        public required IEntityManager EntManager;
+        public required SharedMapSystem Maps;
+        public required StationAiVisionSystem System;
 
         public Entity<MapGridComponent> Grid;
         public List<Entity<StationAiVisionComponent>> Data = new();
 
-        public HashSet<Vector2i> VisibleTiles;
+        public required HashSet<Vector2i> VisibleTiles;
 
         public readonly List<Dictionary<Vector2i, int>> Vis1 = new();
         public readonly List<Dictionary<Vector2i, int>> Vis2 = new();