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[generator] Add support for emitting [UnsupportedOSPlatform]. - #1307
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- tools/generator/SourceWriters/Extensions/SourceWriterExtensions.cs: Evaluated as low risk
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jonpryor
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Changes: dotnet/java-interop@f30e420...9dea87d * dotnet/java-interop@9dea87dc: [Java.Interop] .GetTypeSignature() supports unsigned types (dotnet/java-interop#1312) * dotnet/java-interop@1cfb4f4d: [generator] Add support for emitting `[UnsupportedOSPlatform]` (dotnet/java-interop#1307) Context: #9811 The .NET MAUI template + NativeAOT currently crashes with: E AndroidRuntime: net.dot.jni.internal.JavaProxyThrowable: System.InvalidProgramException: InvalidProgram_Specific, IntPtr Android.Runtime.JNIEnv.monodroid_typemap_managed_to_java(System.Type, Byte*) E AndroidRuntime: at Internal.Runtime.TypeLoaderExceptionHelper.CreateInvalidProgramException(ExceptionStringID, String) + 0x4c E AndroidRuntime: at Android.Runtime.JNIEnv.monodroid_typemap_managed_to_java(Type, Byte*) + 0x18 E AndroidRuntime: at Android.Runtime.JNIEnv.TypemapManagedToJava(Type) + 0x104 E AndroidRuntime: at Android.Runtime.JNIEnv.GetJniName(Type) + 0x1c E AndroidRuntime: at Android.Runtime.JNIEnv.FindClass(Type) + 0x38 E AndroidRuntime: at Android.Runtime.JNIEnv.NewArray(IJavaObject[]) + 0x28 E AndroidRuntime: at Android.Runtime.JNIEnv.NewArray[T](T[]) + 0x94 E AndroidRuntime: at Android.Graphics.Drawables.LayerDrawable..ctor(Drawable[] layers) + 0xd4 E AndroidRuntime: at Microsoft.Maui.Platform.MauiRippleDrawableExtensions.UpdateMauiRippleDrawableBackground(View, Paint, IButtonStroke, Func`1, Func`1, Action) + 0x2ac This appears to be related to array usage, such as `LayerDrawable.ctor(Drawable[])` in this example. I can reproduce the same crash using a `ColorStateList.ctor(int[][], int[])` in `samples/NativeAOT`: E AndroidRuntime: net.dot.jni.internal.JavaProxyThrowable: System.InvalidProgramException: InvalidProgram_Specific, IntPtr Android.Runtime.JNIEnv.monodroid_typemap_managed_to_java(System.Type, Byte*) E AndroidRuntime: at Internal.Runtime.TypeLoaderExceptionHelper.CreateInvalidProgramException(ExceptionStringID, String) + 0x4c E AndroidRuntime: at Android.Runtime.JNIEnv.monodroid_typemap_managed_to_java(Type, Byte*) + 0x18 E AndroidRuntime: at Android.Runtime.JNIEnv.TypemapManagedToJava(Type) + 0x104 E AndroidRuntime: at Android.Runtime.JNIEnv.GetJniName(Type) + 0x1c E AndroidRuntime: at Android.Runtime.JNIEnv.FindClass(Type) + 0x38 E AndroidRuntime: at Android.Runtime.JNIEnv.NewArray[T](T[]) + 0xa8 E AndroidRuntime: at Android.Content.Res.ColorStateList..ctor(Int32[][], Int32[]) + 0xdc E AndroidRuntime: at NativeAOT.MainActivity.OnCreate(Bundle savedInstanceState) + 0xb8 Update `JNIEnv.FindClass(Type)` to go through `TypeManager` instead of using `TypemapManagedToJava`. This avoids the P/Invoke which is causing the crash (f800c1a). Note that we can't directly use `JniRuntime.JniTypeManager.GetTypeSignature()`, as the previous use of `JavaNativeTypeManager.ToJniName(Type)` would default to using `java/lang/Object` if there was no typemap entry for `type`. After this change, the sample works and prints a log message indicating `ColorStateList` is created successfully: D NativeAOT: MainActivity.OnCreate() ColorStateList: ColorStateList{mThemeAttrs=nullmChangingConfigurations=0mStateSpecs=[[0, 1]]mColors=[0, 1]mDefaultColor=0}
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Fixes: #1309
Sometimes, Android removes APIs. For example, API-23 removed the
android.Manifest.permission.CLEAR_APP_USER_DATAfield.We still list this field, though:
Android.Manifest.Permission.ClearAppUserDatafieldWe modified
api-mergeto addremoved-sincein dotnet/android#8897.Here is the excerpt from https://github.com/dotnet/android/blob/main/src/Mono.Android/Profiles/api-Baklava.xml:
Modify
generatorto consume this information and emitUnsupportedOSPlatformAttribute ("androidXX0")]as needed for API that has been removed fromMono.Android.Tested in
dotnet/androidwith dotnet/android#9791.