[TrimmableTypeMap] Add trimmable DotNetRun cases

build-tools/banned-apis/banned-apis.targets

@@ -1,9 +1,9 @@
-<Project>
-  <PropertyGroup>
-    <WarningsAsErrors>RS0030</WarningsAsErrors>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="4.14.0" PrivateAssets="All" />
-    <AdditionalFiles Include="$(MSBuildThisFileDirectory)BannedSymbols.txt" />
-  </ItemGroup>
-</Project>
+<Project>
+  <PropertyGroup>
+    <WarningsAsErrors>RS0030</WarningsAsErrors>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="4.14.0" PrivateAssets="All" />
+    <AdditionalFiles Include="$(MSBuildThisFileDirectory)BannedSymbols.txt" />
+  </ItemGroup>
+</Project>

src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.TypeMap.Trimmable.CoreCLR.targets

@@ -49,14 +49,14 @@
   </Target>
 
   <Target Name="_GeneratePostTrimTrimmableTypeMapJavaSources"
-      Condition=" '$(_AndroidTypeMapImplementation)' == 'trimmable' and '$(PublishTrimmed)' == 'true' and Exists('$(IntermediateOutputPath)linked/Link.semaphore') "
-      AfterTargets="ILLink"
+      Condition=" '$(_AndroidTypeMapImplementation)' == 'trimmable' and '$(PublishTrimmed)' == 'true' and '$(_ComputeFilesToPublishForRuntimeIdentifiers)' != 'true' "
+      AfterTargets="_ResolveAssemblies"
       BeforeTargets="_GenerateJavaStubs;_CompileJava;_CompileToDalvik"
-      Inputs="$(IntermediateOutputPath)linked/Link.semaphore"
+      Inputs="@(ResolvedFileToPublish)"
       Outputs="$(_PostTrimTrimmableTypeMapJavaStamp)">
     <ItemGroup>
       <_PostTrimTrimmableTypeMapInputAssemblies Include="@(ResolvedFileToPublish)"
-          Condition=" '%(Extension)' == '.dll' " />
+          Condition=" '%(Extension)' == '.dll' and ('%(RuntimeIdentifier)' == '' or '$(_PostTrimTypeMapFirstRuntimeIdentifier)' == '' or '%(RuntimeIdentifier)' == '$(_PostTrimTypeMapFirstRuntimeIdentifier)') " />
     </ItemGroup>
 
     <GenerateTrimmableTypeMap

src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.TypeMap.Trimmable.targets

@@ -25,6 +25,8 @@
     <_TypeMapJavaOutputDirectory>$(_TypeMapBaseOutputDir)typemap/java</_TypeMapJavaOutputDirectory>
     <_TypeMapAssembliesListFile>$(_TypeMapOutputDirectory)typemap-assemblies.txt</_TypeMapAssembliesListFile>
     <_PostTrimTypeMapJavaOutputDirectory>$(_TypeMapBaseOutputDir)typemap/linked-java</_PostTrimTypeMapJavaOutputDirectory>
+    <_PostTrimTypeMapFirstRuntimeIdentifier Condition=" '$(RuntimeIdentifiers)' != '' ">$([System.String]::Copy('$(RuntimeIdentifiers)').Split(';')[0])</_PostTrimTypeMapFirstRuntimeIdentifier>
+    <_PostTrimTypeMapFirstRuntimeIdentifier Condition=" '$(_PostTrimTypeMapFirstRuntimeIdentifier)' == '' ">$(RuntimeIdentifier)</_PostTrimTypeMapFirstRuntimeIdentifier>
     <_TypeMapJavaStubsSourceDirectory Condition=" '$(_TypeMapJavaStubsSourceDirectory)' == '' and '$(_AndroidRuntime)' == 'CoreCLR' and '$(PublishTrimmed)' == 'true' ">$(_PostTrimTypeMapJavaOutputDirectory)</_TypeMapJavaStubsSourceDirectory>
     <_TypeMapJavaStubsSourceDirectory Condition=" '$(_TypeMapJavaStubsSourceDirectory)' == '' ">$(_TypeMapJavaOutputDirectory)</_TypeMapJavaStubsSourceDirectory>
     <_PostTrimTrimmableTypeMapJavaStamp>$(_TypeMapBaseOutputDir)stamp/_GeneratePostTrimTrimmableTypeMapJavaSources.stamp</_PostTrimTrimmableTypeMapJavaStamp>
@@ -251,8 +253,20 @@
     We keep _GetGenerateJavaStubsInputs in DependsOnTargets so that downstream targets
     (_GetGeneratePackageManagerJavaInputs) can still read @(_GenerateJavaStubsInputs).
   -->
+  <!--
+    NOTE: _CleanIntermediateIfNeeded must NOT be listed here. It already runs early in the
+    normal build via _AndroidBuildDependsOn (BuildOrder.targets). During an incremental
+    `dotnet run` without a build, the entry point is the Install/DeployToDevice chain, which does
+    not run the early Build chain, so listing _CleanIntermediateIfNeeded here would make it run
+    for the first time *after* _PrepareAssemblies has already populated
+    obj/<config>/android/assets/<abi>/*.dll. It would then delete obj/<config>/android, but
+    _PrepareAssemblies (already executed this invocation) would be skipped and not recreate the
+    assemblies, causing _GeneratePackageManagerJava to fail with XAGCA7023
+    (DirectoryNotFoundException on assets/<abi>/Mono.Android.dll). This mirrors the llvm-ir
+    _GenerateJavaStubs target, which also omits _CleanIntermediateIfNeeded.
+  -->
   <Target Name="_GenerateJavaStubs"
-      DependsOnTargets="_SetLatestTargetFrameworkVersion;_CleanIntermediateIfNeeded;_PrepareAssemblies;_GetGenerateJavaStubsInputs;_DefineBuildTargetAbis;_PrepareNativeAssemblySources"
+      DependsOnTargets="_SetLatestTargetFrameworkVersion;_PrepareAssemblies;_GetGenerateJavaStubsInputs;_DefineBuildTargetAbis;_PrepareNativeAssemblySources"
       Inputs="$(_TypeMapOutputDirectory)$(_TypeMapAssemblyName).dll;@(_EnvironmentFiles)"
       Outputs="$(_AndroidStampDirectory)_GenerateJavaStubs.stamp">
 

tests/MSBuildDeviceIntegration/Tests/InstallAndRunTests.cs

@@ -56,6 +56,10 @@ static IEnumerable<object[]> Get_DotNetRun_Data ()
 				//AddTestData (false, "managed", runtime);
 			}
 
+			AddTestData (true, "trimmable", AndroidRuntime.CoreCLR);
+			AddTestData (false, "trimmable", AndroidRuntime.CoreCLR);
+			AddTestData (true, "trimmable", AndroidRuntime.NativeAOT);
+
 			return ret;
 
 			void AddTestData (bool isRelease, string typemapImplementation, AndroidRuntime runtime)