Annotate Azure.Messaging.EventHubs for trim/AOT compat (#46606)

* Annotate Azure.Messaging.EventHubs for trim/AOT compat

* PR feedback

- Annotate Azure.Messaging.EventHubs.Processor, add ci check
- Add changelog entries

Also make some minor fixes to the AOT compat script.

* Fix RequiresUnreferencedCode message

Author: sbomer

eng/scripts/compatibility/Check-AOT-Compatibility.ps1

@@ -72,7 +72,7 @@ if ($LASTEXITCODE -ne 0)
     Set-Location -Path ..
     Remove-Item -Path "./$folderPath" -Recurse -Force
 
-    Write-Host "\nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
+    Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
     Exit 2
 }
 
@@ -104,15 +104,18 @@ if (Test-Path $expectedWarningsFullPath -PathType Leaf) {
     $numWarnings = $warnings.Count
 
     if ($numWarnings -gt 0) {
-      Write-Host "Found $numWarnings additional warnings that were not expected:`n$warnings"
+      Write-Host "Found $numWarnings additional warnings that were not expected:"
+      foreach ($warning in $warnings) {
+        Write-Host $warning
+      }
     }
 
     Write-Host "Deleting test app files."
 
     Set-Location -Path ..
     Remove-Item -Path "./$folderPath" -Recurse -Force
 
-    Write-Host "\nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
+    Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
 
     exit $warnings.Count
 }
@@ -126,7 +129,10 @@ Write-Host "Checking against the list of expected warnings. There are $numExpect
 $warnings = $publishOutput -split "`n" | select-string -pattern 'IL\d+' | select-string -pattern '##' -notmatch | select-string -pattern $expectedWarnings -notmatch
 $numWarnings = $warnings.Count
 if ($numWarnings -gt 0) {
-  Write-Host "Found $numWarnings additional warnings that were not expected:`n$warnings"
+  Write-Host "Found $numWarnings additional warnings that were not expected:"
+  foreach ($warning in $warnings) {
+    Write-Host $warning
+  }
 }
 
 ### Cleanup ###
@@ -138,9 +144,9 @@ Remove-Item -Path "./$folderPath" -Recurse -Force
 
 if ($numExpectedWarnings -ne $actualWarningCount) {
   Write-Host "The number of expected warnings ($numExpectedWarnings) was different than the actual warning count ($actualWarningCount)."
-  Write-Host "\nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
+  Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
   exit 2
 }
 
-Write-Host "\nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
+Write-Host "`nFor help with this check, please see https://github.com/Azure/azure-sdk-for-net/tree/main/doc/dev/AotRegressionChecks.md"
 exit $warnings.Count

sdk/core/Azure.Core/src/Shared/AzureEventSource.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 #nullable enable
@@ -12,6 +12,9 @@ namespace Azure.Core.Diagnostics
 {
     internal abstract class AzureEventSource: EventSource
     {
+        private protected const string EventSourceRequiresUnreferencedCodeMessage = "EventSource will serialize the whole object graph. Trimmer will not safely handle this case because properties may be trimmed. This can be suppressed if the object is a primitive type";
+        private protected const string EventSourceSuppressMessage = "Parameters to this method are primitive and are trimmer safe.";
+
         private const string SharedDataKey = "_AzureEventSourceNamesInUse";
         private static readonly HashSet<string> NamesInUse;
 

sdk/eventhub/Azure.Messaging.EventHubs.Processor/CHANGELOG.md

@@ -10,6 +10,8 @@
 
 ### Other Changes
 
+- Added annotations to make the package compatible with trimming and native AOT compilation.
+
 ## 5.11.5 (2024-08-14)
 
 ### Other Changes

sdk/eventhub/Azure.Messaging.EventHubs.Processor/src/Azure.Messaging.EventHubs.Processor.csproj

@@ -7,6 +7,8 @@
     <PackageTags>Azure;Event Hubs;EventHubs;.NET;Event Processor;EventProcessor;$(PackageCommonTags)</PackageTags>
     <TargetFrameworks>$(RequiredTargetFrameworks)</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <IsTrimmable Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">true</IsTrimmable>
+    <IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>
   </PropertyGroup>
 
   <ItemGroup>

sdk/eventhub/Azure.Messaging.EventHubs.Processor/src/Diagnostics/BlobEventStoreEventSource.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Diagnostics.Tracing;
+using System.Diagnostics.CodeAnalysis;
 using System.Runtime.CompilerServices;
 using Azure.Core.Diagnostics;
 using Azure.Messaging.EventHubs.Primitives;
@@ -91,6 +92,7 @@ public virtual void ListOwnershipStart(string fullyQualifiedNamespace,
         /// <param name="ownershipCount">The amount of ownership received from the storage service.</param>
         ///
         [Event(22, Level = EventLevel.Verbose, Message = "Completed listing ownership for FullyQualifiedNamespace: '{0}'; EventHubName: '{1}'; ConsumerGroup: '{2}'.  There were {3} ownership entries were found.")]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         public virtual void ListOwnershipComplete(string fullyQualifiedNamespace,
                                                   string eventHubName,
                                                   string consumerGroup,
@@ -434,6 +436,7 @@ public virtual void GetCheckpointError(string fullyQualifiedNamespace,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [RequiresUnreferencedCode(EventSourceRequiresUnreferencedCodeMessage)]
         private unsafe void WriteEvent<TValue1>(int eventId,
                                                 string arg1,
                                                 string arg2,
@@ -476,6 +479,7 @@ private unsafe void WriteEvent<TValue1>(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -518,6 +522,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -567,6 +572,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -621,6 +627,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [RequiresUnreferencedCode(EventSourceRequiresUnreferencedCodeMessage)]
         private unsafe void WriteEvent<TValue1>(int eventId,
                                                 string arg1,
                                                 string arg2,
@@ -677,6 +684,7 @@ private unsafe void WriteEvent<TValue1>(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -744,6 +752,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,

sdk/eventhub/Azure.Messaging.EventHubs.Processor/src/Diagnostics/EventProcessorClientEventSource.cs

@@ -2,6 +2,7 @@
 // Licensed under the MIT License.
 
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Diagnostics.Tracing;
 using System.Runtime.CompilerServices;
 using Azure.Core.Diagnostics;
@@ -235,6 +236,7 @@ public virtual void EventBatchProcessingHandlerCall(string sequenceNumber,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -278,6 +280,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,
@@ -327,6 +330,7 @@ private unsafe void WriteEvent(int eventId,
         ///
         [NonEvent]
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = EventSourceSuppressMessage)]
         private unsafe void WriteEvent(int eventId,
                                        string arg1,
                                        string arg2,

sdk/eventhub/Azure.Messaging.EventHubs/CHANGELOG.md

@@ -12,6 +12,8 @@
 
 ### Other Changes
 
+- Added annotations to make the package compatible with trimming and native AOT compilation.
+
 ## 5.11.5 (2024-07-31)
 
 ### Other Changes

sdk/eventhub/Azure.Messaging.EventHubs/src/Azure.Messaging.EventHubs.csproj

@@ -7,6 +7,8 @@
     <PackageTags>Azure;Event Hubs;EventHubs;.NET;AMQP;IoT;$(PackageCommonTags)</PackageTags>
     <TargetFrameworks>$(RequiredTargetFrameworks)</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <IsTrimmable Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">true</IsTrimmable>
+    <IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>
   </PropertyGroup>
 
   <ItemGroup>

sdk/eventhub/Azure.Messaging.EventHubs/src/Compatibility/EventHubClientBuilderExtensions.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
+using System.Diagnostics.CodeAnalysis;
 using Azure.Core.Extensions;
 using Azure.Messaging.EventHubs.Consumer;
 using Azure.Messaging.EventHubs.Producer;
@@ -46,6 +47,8 @@ public static IAzureClientBuilder<EventHubProducerClient, EventHubProducerClient
         ///   Registers a <see cref="EventHubProducerClient"/> instance with connection options loaded from the provided <paramref name="configuration"/> instance.
         /// </summary>
         ///
+        [RequiresUnreferencedCode("Binding strongly typed objects to configuration values is not supported with trimming. Use the Configuration Binder Source Generator (EnableConfigurationBindingGenerator=true) instead.")]
+        [RequiresDynamicCode("Binding strongly typed objects to configuration values requires generating dynamic code at runtime, for example instantiating generic types. Use the Configuration Binder Source Generator (EnableConfigurationBindingGenerator=true) instead.")]
         public static IAzureClientBuilder<EventHubProducerClient, EventHubProducerClientOptions> AddEventHubProducerClient<TBuilder, TConfiguration>(this TBuilder builder, TConfiguration configuration)
             where TBuilder : IAzureClientFactoryBuilderWithConfiguration<TConfiguration>
         {
@@ -86,6 +89,8 @@ public static IAzureClientBuilder<EventHubConsumerClient, EventHubConsumerClient
         ///   Registers a <see cref="EventHubConsumerClient"/> instance with connection options loaded from the provided <paramref name="configuration"/> instance.
         /// </summary>
         ///
+        [RequiresUnreferencedCode("Binding strongly typed objects to configuration values is not supported with trimming. Use the Configuration Binder Source Generator (EnableConfigurationBindingGenerator=true) instead.")]
+        [RequiresDynamicCode("Binding strongly typed objects to configuration values requires generating dynamic code at runtime, for example instantiating generic types. Use the Configuration Binder Source Generator (EnableConfigurationBindingGenerator=true) instead.")]
         public static IAzureClientBuilder<EventHubConsumerClient, EventHubConsumerClientOptions> AddEventHubConsumerClient<TBuilder, TConfiguration>(this TBuilder builder, TConfiguration configuration)
             where TBuilder : IAzureClientFactoryBuilderWithConfiguration<TConfiguration>
         {