Additional IL2CPP vs. .NET and NET46 vs NETStandard20 fixes (+ other) (#27)

* This handles the case where dependency is given in form of 'GUID:{asset guid}' instead of project name, also fixes initially mistaken NETStandard and NET46 diff to be NET and IL2CPP diff. And also adds tests

* Fixed a bug

* Removed empty propertygroup.

Removed empty propertygroup.

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/MSBuildTemplates/WSA.Player.IL2CPP.props.template

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
     <AssemblySearchPaths>$(AssemblySearchPaths);<!--PLATFORM_COMMON_ASSEMBLY_SEARCH_PATHS_TOKEN-->;C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETCore\v4.5;$(UnityEditorInstallFolder)Data\PlaybackEngines\MetroSupport\Managed\UAP\</AssemblySearchPaths>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework><!--TARGET_FRAMEWORK_TOKEN--></TargetFramework>
     <DefaultLanguage>en-US</DefaultLanguage>
     <DefineConstants>$(DefineConstants);<!--PLATFORM_COMMON_DEFINE_CONSTANTS-->;NETFX_CORE;WINDOWS_UWP</DefineConstants>
     <TargetPlatformVersion><!--UWP_TARGET_PLATFORM_VERSION_TOKEN--></TargetPlatformVersion>
@@ -32,10 +32,6 @@
       <HintPath>C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETCore\v4.5\System.Runtime.WindowsRuntime.dll</HintPath>
     </Reference>
 
-    <Reference Include="WinRTLegacy" Condition="$(UnityMajorVersion) &lt; 2019">
-      <HintPath>$(UnityEditorInstallFolder)Data\PlaybackEngines\MetroSupport\Managed\UAP\WinRTLegacy.dll</HintPath>
-    </Reference>
-
     <Reference Include="Windows">
       <HintPath>C:\Program Files (x86)\Windows Kits\10\UnionMetadata\$(TargetPlatformVersion)\windows.winmd</HintPath>
     </Reference>

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/MSBuildTemplates/WSA.Player.Net.props.template

@@ -51,4 +51,4 @@
     </Reference>
 <!--PLATFORM_COMMON_REFERENCE_TEMPLATE_END-->
   </ItemGroup>
-</Project>
+</Project>

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/Scripts/CompilationPlatformInfo.cs

@@ -117,6 +117,11 @@ namespace Microsoft.Build.Unity.ProjectGeneration
         /// </summary>
         public TargetFramework TargetFramework { get; }
 
+        /// <summary>
+        /// Gets the scripting backend for this platform (Mono, .NET, IL2CPP)
+        /// </summary>
+        public ScriptingBackend ScriptingBackend { get; }
+
         /// <summary>
         ///  These defines are specific for this platform and common or player/editor.
         /// </summary>
@@ -156,6 +161,7 @@ namespace Microsoft.Build.Unity.ProjectGeneration
             BuildTargetGroup = Utilities.GetBuildTargetGroup(BuildTarget);
 
             TargetFramework = BuildTargetGroup.GetTargetFramework();
+            ScriptingBackend = BuildTargetGroup.GetScriptingBackend();
 
             CommonPlatformDefines = commonPlatformDefines;
             AdditionalPlayerDefines = additionalPlayerDefines;

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/Scripts/MSBuildTools.cs

@@ -177,7 +177,7 @@ namespace Microsoft.Build.Unity.ProjectGeneration
         {
             string configuration = inEditorConfiguration ? "InEditor" : "Player";
 
-            string platformTemplate = File.ReadAllText(TemplateFiles.Instance.GetTemplateFilePathForPlatform(platform.Name, configuration, platform.TargetFramework.AsTemplateString()));
+            string platformTemplate = File.ReadAllText(TemplateFiles.Instance.GetTemplateFilePathForPlatform(platform.Name, configuration, platform.ScriptingBackend));
 
             string platformPropsText;
             if (inEditorConfiguration)

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/Scripts/TargetFramework.cs

@@ -16,7 +16,14 @@ namespace Microsoft.Build.Unity.ProjectGeneration
         Net20,
         Net46
     }
-    
+
+    public enum ScriptingBackend
+    {
+        Mono,
+        Net,
+        IL2CPP
+    }
+
     /// <summary>
     /// Helper extensions for the <see cref="TargetFramework"/> enum.
     /// </summary>
@@ -91,6 +98,32 @@ namespace Microsoft.Build.Unity.ProjectGeneration
 
             throw new PlatformNotSupportedException("ApiCompatibilityLevel platform not matched.");
         }
+
+        /// <summary>
+        /// Returns the configured <see cref="ScriptingBackend"/> for the <see cref="BuildTargetGroup"/>.
+        /// </summary>
+        /// <param name="this">The <see cref="BuildTargetGroup"/> to get <see cref="ScriptingBackend"/> for.</param>
+        /// <returns>The <see cref="ScriptingBackend"/> configured for given <see cref="BuildTargetGroup"/>.</returns>
+        public static ScriptingBackend GetScriptingBackend(this BuildTargetGroup @this)
+        {
+            if (@this == BuildTargetGroup.Unknown)
+            {
+                // This may be different on older unity versions
+                return ScriptingBackend.Mono;
+            }
+
+            switch (PlayerSettings.GetScriptingBackend(@this))
+            {
+                case ScriptingImplementation.Mono2x:
+                    return ScriptingBackend.Mono;
+                case ScriptingImplementation.IL2CPP:
+                    return ScriptingBackend.IL2CPP;
+                case ScriptingImplementation.WinRTDotNET:
+                    return ScriptingBackend.Net;
+            }
+
+            throw new PlatformNotSupportedException("ScriptingBackend platform not matched.");
+        }
     }
 }
 #endif

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/Scripts/TemplateFiles.cs

@@ -147,9 +147,9 @@ namespace Microsoft.Build.Unity.ProjectGeneration
         /// <param name="platform">The platform of the requested template.</param>
         /// <param name="configuration">The configuration of the requested template.</param>
         /// <returns>The absolute file path for the platform template to use.</returns>
-        public string GetTemplateFilePathForPlatform(string platform, string configuration, string apiLevel)
+        public string GetTemplateFilePathForPlatform(string platform, string configuration, ScriptingBackend scriptingBackend)
         {
-            if (PlatformTemplates.TryGetValue($"{platform}.{configuration}.{apiLevel}.props.template", out string templatePath)
+            if (PlatformTemplates.TryGetValue($"{platform}.{configuration}.{scriptingBackend.ToString()}.props.template", out string templatePath)
                 || PlatformTemplates.TryGetValue($"{platform}.{configuration}.Any.props.template", out templatePath)
                 || PlatformTemplates.TryGetValue($"{platform}.Configuration.Any.props.template", out templatePath))
             {

Source/MSBuildTools.Unity/Packages/com.microsoft.msbuildforunity/Editor/ProjectGenerator/Scripts/UnityProjectInfo.cs

@@ -145,6 +145,11 @@ namespace Microsoft.Build.Unity.ProjectGeneration
 
         private CSProjectInfo GetProjectInfo(Dictionary<string, CSProjectInfo> projectsMap, Dictionary<string, AssemblyDefinitionInfo> asmDefInfoMap, HashSet<string> builtInPackagesWithoutSource, string projectKey, string projectOutputPath)
         {
+            if (projectKey.StartsWith("GUID:"))
+            {
+                projectKey = Path.GetFileNameWithoutExtension(AssetDatabase.GUIDToAssetPath(projectKey.Substring("GUID:".Length)));
+            }
+
             if (projectsMap.TryGetValue(projectKey, out CSProjectInfo value))
             {
                 return value;
@@ -152,7 +157,8 @@ namespace Microsoft.Build.Unity.ProjectGeneration
 
             if (!asmDefInfoMap.TryGetValue(projectKey, out AssemblyDefinitionInfo assemblyDefinitionInfo))
             {
-                throw new InvalidOperationException($"Can't find an asmdef for project: {projectKey}");
+                Debug.LogError($"Can't find an asmdef for project: {projectKey}; Unity actually allows this, so proceeding.");
+                return null;
             }
 
             CSProjectInfo toReturn = new CSProjectInfo(this, assemblyDefinitionInfo, projectOutputPath);
@@ -183,7 +189,11 @@ namespace Microsoft.Build.Unity.ProjectGeneration
                     continue;
                 }
 
-                toReturn.AddDependency(GetProjectInfo(projectsMap, asmDefInfoMap, builtInPackagesWithoutSource, reference, projectOutputPath));
+                CSProjectInfo dependencyToAdd = GetProjectInfo(projectsMap, asmDefInfoMap, builtInPackagesWithoutSource, reference, projectOutputPath);
+                if (dependencyToAdd != null)
+                {
+                    toReturn.AddDependency(dependencyToAdd);
+                }
             }
 
             return toReturn;

Tests/ProjectGeneration/Producer.2019.Unity/Assets/PlatformTest.cs

@@ -1,15 +1,13 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See LICENSE in the project root for license information.
 
+using System;
 using System.Linq;
 using UnityEngine;
 
-#if UNITY_WSA
-using System;
-#endif
-
 namespace Microsoft.Build.Unity.ProjectGeneration.Test
 {
+    [Serializable]
     public enum TestResult
     {
         Success,