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[Microsoft.Android.Sdk.ILLink] preserve types with IJniNameProviderAttribute #9099

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merged 5 commits into from
Jul 15, 2024
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[Microsoft.Android.Sdk.ILLink] preserve types with IJniNameProviderAttribute #9099

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1297bf0
[Microsoft.Android.Sdk.ILLink] preserve types with `IJniNameProviderA…
jonathanpeppers Jul 10, 2024
e1afd73
formatting
jonathanpeppers Jul 11, 2024
49b46e3
Update BuildReleaseArm64XFormsDotNet.apkdesc
jonathanpeppers Jul 11, 2024
36d58ae
Revert "Update BuildReleaseArm64XFormsDotNet.apkdesc"
jonathanpeppers Jul 11, 2024
c4bffbd
Ignore Android.Runtime.RegisterAttribute!
jonathanpeppers Jul 11, 2024
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37 changes: 34 additions & 3 deletions src/Microsoft.Android.Sdk.ILLink/MarkJavaObjects.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,9 @@
using Mono.Cecil;
using Mono.Linker;
using Mono.Linker.Steps;
using Mono.Tuner;
using Java.Interop.Tools.Cecil;
using Xamarin.Android.Tasks;
using Profile = Microsoft.Android.Sdk.ILLink.Profile;

namespace MonoDroid.Tuner {

Expand All @@ -27,7 +27,14 @@ public override void Initialize (LinkContext context, MarkContext markContext)

bool IsActiveFor (AssemblyDefinition assembly)
{
return assembly.MainModule.HasTypeReference ("System.Net.Http.HttpMessageHandler") || assembly.MainModule.HasTypeReference ("Android.Util.IAttributeSet");
if (Profile.IsSdkAssembly (assembly))
return false;
if (Profile.IsProductAssembly (assembly))
return false;

return assembly.MainModule.HasTypeReference ("System.Net.Http.HttpMessageHandler") ||
assembly.MainModule.HasTypeReference ("Java.Lang.Object") ||
assembly.MainModule.HasTypeReference ("Android.Util.IAttributeSet");
Comment on lines +30 to +37
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Checking IsSdkAssembly(), IsProductAssembly(), and Java.Lang.Object is what the FixAbstractMethodsStep is already doing, so it seemed appropriate here.

}

public void ProcessAssembly (AssemblyDefinition assembly, string androidHttpClientHandlerType, Dictionary<string, HashSet<string>> customViewMap)
Expand All @@ -47,16 +54,40 @@ public void ProcessAssembly (AssemblyDefinition assembly, string androidHttpClie
}
}

// Custom views in Android .xml files
// Continue if not an IJavaObject
if (!type.ImplementsIJavaObject (cache))
continue;

// Custom views in Android .xml files
if (customViewMap.ContainsKey (type.FullName)) {
Annotations.Mark (type);
PreserveJavaObjectImplementation (type);
continue;
}

// Types with Java.Interop.IJniNameProviderAttribute attributes
if (ShouldPreserveBasedOnAttributes (type)) {
Annotations.Mark (type);
PreserveJavaObjectImplementation (type);
continue;
}
}
}

bool ShouldPreserveBasedOnAttributes (TypeDefinition type)
{
if (!type.HasCustomAttributes)
return false;

foreach (var attr in type.CustomAttributes) {
if (attr.AttributeType.Implements ("Java.Interop.IJniNameProviderAttribute", cache)) {
return true;
}
}

return false;
}

public void ProcessType (TypeDefinition type)
{
// If this isn't a JLO or IJavaObject implementer,
Expand Down
34 changes: 34 additions & 0 deletions src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/Tasks/LinkerTests.cs
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Expand Up @@ -598,6 +598,40 @@ public void PreserveIX509TrustManagerSubclasses ([Values(true, false)] bool hasS
}
}

[Test]
public void PreserveServices ()
{
var proj = new XamarinAndroidApplicationProject {
IsRelease = true,
TrimModeRelease = TrimMode.Full,
PackageReferences = {
new Package { Id = "Plugin.Firebase.CloudMessaging", Version = "3.0.0" },
}
};
proj.MainActivity = proj.DefaultMainActivity
.Replace ("//${FIELDS}",
"""
protected override void OnNewIntent(Android.Content.Intent? intent)
{
base.OnNewIntent(intent);
Plugin.Firebase.CloudMessaging.FirebaseCloudMessagingImplementation.OnNewIntent(intent);
}
""")
.Replace ("//${AFTER_ONCREATE}", "Plugin.Firebase.Core.Platforms.Android.CrossFirebase.Initialize (this);");

using var b = CreateApkBuilder ();
Assert.IsTrue (b.Build (proj), "Build should have succeeded.");

var assemblyPath = BuildTest.GetLinkedPath (b, isRelease: true, "Plugin.Firebase.CloudMessaging.dll");
FileAssert.Exists (assemblyPath);
using var assembly = AssemblyDefinition.ReadAssembly (assemblyPath);
var types = new [] { "Plugin.Firebase.CloudMessaging.Platforms.Android.MyFirebaseMessagingService" };
foreach (var typeName in types) {
var td = assembly.MainModule.GetType (typeName);
Assert.IsNotNull (td, $"{typeName} should not have been linked out!");
}
}

[Test]
public void DoNotErrorOnPerArchJavaTypeDuplicates ([Values(true, false)] bool enableMarshalMethods)
{
Expand Down
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