Fallback to the on-disk DLL as Reference if the DLL isn't referenced …

…in the solution (#5)

Start enabling automatic detection of the Rimworld DLL when the Solution doesn't reference one

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## 2023.1-Alpha-3
  * Fixed some instances of certain classes not being queried for their properties
+ * If you've got a project without the Assembly-CSharp.dll referenced (If you're on Linux for example), it should now be
+   able to find the DLL file on disk and reference that directly as a fall-back
 
 ## 2023.1-Alpha-2
  * Minimum Rider version is now 2023.1

TODO.md

@@ -6,7 +6,6 @@
    * If we know a bit of XML should be an enum like Gender, we should be able to check that it's a valid enum value
 `  * Maybe bring out own Rimworld defs if there's no scope?
    * Handle Defs with custom classes instead of Rimworld classes
-`   * Packaging. It shouldn't be too difficult, but I haven't done it yet
    * We need to be able to support "LoadAlias", such as "StorageSettings.priority"
 
  * Autocomplete of special types
@@ -28,13 +27,10 @@
    * Make auto completing to other XMLTags look nicer and work faster
    * When linking to other def (`<defaultDuty>DefNameHere</defaultDuty>`) also include defs where the tag is a custom class
      that extends from the def we're looking for
-
-` * Refactoring
-   * We're fetching symbol scopes a bit all over the place. Let's collect it into a SymbolScope helper class
 `   
  * Documentation
    * Re-read and document References.RimworldXmlReference
    * If you have an XML file open while Rider is still initializing, that file doesn't get autocompletion. Document that
 
  * Tests
-   * It's not a serious plugin project without Tests IMO. Let's at least aim to get one or two unit tests to start with
+   * It's not a serious project without Tests IMO. Let's at least aim to get one or two unit tests to start with

src/dotnet/ReSharperPlugin.RimworldDev/ScopeHelper.cs

@@ -1,8 +1,13 @@
 using System.Collections.Generic;
 using System.Linq;
+using JetBrains.Application.Threading.Tasks;
+using JetBrains.Metadata.Reader.API;
 using JetBrains.ProjectModel;
+using JetBrains.ProjectModel.model2.Assemblies.Interfaces;
 using JetBrains.ReSharper.Psi.Caches;
 using JetBrains.ReSharper.Psi.Modules;
+using JetBrains.Util;
+using JetBrains.Util.Threading.Tasks;
 
 namespace ReSharperPlugin.RimworldDev;
 
@@ -12,29 +17,63 @@ public class ScopeHelper
     private static ISymbolScope rimworldScope;
     private static IPsiModule rimworldModule;
     private static List<ISymbolScope> usedScopes;
+    private static bool adding = false;
 
     public static bool UpdateScopes(ISolution solution)
     {
         if (solution == null) return false;
-        
+
         allScopes = solution.PsiModules().GetModules().Select(module =>
             module.GetPsiServices().Symbols.GetSymbolScope(module, true, true)).ToList();
 
         if (rimworldScope == null)
         {
             rimworldScope = allScopes.FirstOrDefault(scope => scope.GetTypeElementByCLRName("Verse.ThingDef") != null);
 
-            if (rimworldScope == null) return false;
+            if (rimworldScope == null)
+            {
+                AddRef(solution);
+
+                return false;
+            }
 
             rimworldModule = solution.PsiModules().GetModules()
-                .First(module => module.GetPsiServices().Symbols.GetSymbolScope(module, true, true).GetTypeElementByCLRName("Verse.ThingDef") != null);
-
-            // rimworldScope = rimWorldModule.GetPsiServices().Symbols.GetSymbolScope(rimWorldModule, true, true);
+                .First(module =>
+                    module.GetPsiServices().Symbols.GetSymbolScope(module, true, true)
+                        .GetTypeElementByCLRName("Verse.ThingDef") != null);
         }
 
         return true;
     }
 
+    private static async void AddRef(ISolution solution)
+    {
+        if (adding) return;
+        adding = true;
+
+        var locations = new List<string>
+        {
+            "C:\\Program Files (x86)\\Steam\\steamapps\\common\\RimWorld\\RimWorldWin64_Data\\Managed\\Assembly-CSharp.dll",
+            "C:\\Program Files\\Steam\\steamapps\\common\\RimWorld\\RimWorldWin64_Data\\Managed\\Assembly-CSharp.dll",
+            "~/.steam/steam/SteamApps/common/RimWorld/RimWorldWin64_Data/Managed/Assembly-CSharp.dll"
+        };
+
+
+        var location = locations.FirstOrDefault(location => FileSystemPath.TryParse(location).ExistsFile);
+
+        if (location == null) return;
+
+        var path = FileSystemPath.TryParse(location);
+
+        var moduleReferenceResolveContext =
+            (IModuleReferenceResolveContext)UniversalModuleReferenceContext.Instance;
+
+        await solution.Locks.Tasks.YieldTo(solution.GetLifetime(), Scheduling.MainDispatcher, TaskPriority.Low);
+
+        solution.GetComponent<IAssemblyFactory>().AddRef(path.ToAssemblyLocation(), "ScopeHelper::AddRef",
+            moduleReferenceResolveContext);
+    }
+
     public static ISymbolScope RimworldScope => rimworldScope;
 
     public static IPsiModule RimworldModule => rimworldModule;